bluuebunny/crossref_metadata_2025 huggingface dataset:
Influences of Change of Plasma on Strength Property of Eolian Sand
Authors: Jin Chang Ning , Zhang Yu Hong
Published: June 2012

The plasma in the eolian sand, included silt particle and clay particle, change easily and hugely. For studying their influences on the strength property of eolian sand, mixed silt particles and clay particles into eolian sand in different proportions to measure the internal friction angle and cohesion under different forming and testing conditions. The result indicates that: for the same kind of test specimen under different test types, the changes of cohesion and internal friction coefficient are regular. For the same test type, the changes of both cohesion and internal friction coefficient of different test specimens are regular. Generally, when the content of silt particles and clay particles is lower than a certain value, the cohesion and internal friction coefficient increase accordingly and rapidly along with the increase of silt particles and clay particles; after the content of silt particles and clay particles is larger than this value, the cohesion and internal friction coefficient increase slowly or decline along with the increase of silt particles and clay particles. The change range of this value is approximately between 45%～65%, the content of silt particles and clay particles. For the purpose of this test, as to the transition of test specimens from typical sandy soil to fine grained soil caused by the increase of silt particles and clay particles, the change point of strength is at 45％ approximately, which is basically consistent with the compacting test and CBR test, etc.
Discuss the Vibration Frequency Reflection Wave Method of Low-Strain to Complete the Influence of Pile Inspection
Authors: Gu Xue Qian , Yi Nan Gai , Zhang Zhi Qiang
Published: June 2012

As the main method of the foundation pile low strain dynamic test, the reflected wave method has been widely recognized in engineering after years of research and application. Among the many elements of affecting quality of pile foundation, the influence of excitation frequency on pile inspection is research focuses in this paper. This paper analyzes and summarizes the rules of the effect the exciting force produces in low strain integrity testing by using laboratory simulation experiment.
Work Mechanisms of Pile Foundation in the Karst Region
Authors: Wang Gui Jun , Zhang Yong
Published: June 2012

The stability and deformation characteristics of the pile foundation in the Karst region of the super big railway bridge Chaogou under different loading levels are analyzed using the FDM-software, FLAC3D. In the analyses the socketed depth of piles, the properties of soil and rock mass, the scale, space position and filling situation of the Karst caves and the features of the contact interfaces between piles and soil and rock mass were taken into account. The research results show that the original design of the pile foundation is safe and the safety coefficient is greater than 2. The bond strength of the contact surface between pile and soil and rock is a controlling factor for the stability of pile foundation. Therefore, injection after construction is suggested to be used when needed, in order to increase the bond strength of the contact surface. The research leads to a conclusion that the mechanisms and the characteristics of the rock socketed piles can be more clearly interpreted in numerical analyses by referring the principle of the interaction between piles and rock, pile foundation and Karst, resistance of both pile ends and sides.
Wetting-Drying Effect of Expansive Soils and its Influence on Slope Stability
Authors: Zeng Zhao Tian , Lu Hai Bo , Zhao Yan Lin
Published: June 2012

The wetting-drying effect of expansive soils plays an important role in slope stability analysis. According to the depth of atmospheric effect and the field observation data of moisture content, laboratory experiments on the strength of expansive soil with two wetting-drying cycle amplitudes were performed to discuss on the wetting-drying effect of expansive soil. The results show that the shear strength of expansive soil decreases with increasing number of cycles and finally reaches to a constant state. The value and cycle number of the constant state reduce with increase of amplitude of variation of water content. Furthermore, the stability analysis of expansive soil slope is studied with considering the wetting-drying effect. The results may provide the reference for the parameter selection in slope design.
Comparison of Strength Reduction Method for Slope Stability Analysis Based on ABAQUS FEM and FLAC3D FDM
Authors: Yang Xing , Yang Gui , Yu Ting
Published: June 2012

Strength reduction method is widely used in the slope stability analysis. However, it is short of unified instability evaluation standard at present. And the different numerical calculation methods also influence the safety factor of strength reduction method. Taking a typical slope in this paper, the same model meshes are established in ABAQUS FEM and FLAC3D FDM by using the self-compiled model transformation program ABAQUS-FLAC3D. Then the same elastic-plastic constitutive and yield criterion are both employed in ABAQUS FEM and FLAC3D FDM. The safety factors obtained from the two numerical calculation methods are compared, and the results are also compared with that of Spencer limit equilibrium method. It is observed the safety factors calculated by ABAQUS FEM are slightly higher than that of FLAC3D FDM for the same instability evaluation standards. Moreover, the safety factors obtained from the run-through of plastic zone and the saltation of the displacement at characteristic point are much closer to that of Spencer limit equilibrium method. Hence the combination of the run-through of plastic zone and the saltation of the displacement at characteristic point as the slope instability evaluation standard is suggested in this paper. Meanwhile, the correctness of self-compiled improved strength reduction method is verified by comparing with the result of FLAC3D built-in strength reduction method.
A Comparison between a New PPT and PDCR81 Series
Authors: Wang Zhong Tao , Yang Lin Qing , Xu Bo , Luan Mao Tian
Published: June 2012

Miniature pore pressure transducer (PPT) Druck PDCR81 series are used widely and have been proved to have a good performance in the centrifugal tests in the past few decades. However this product has been off production due to unknown reasons from 2010. Therefore, an alternative PPT is urgently needed in the centrifuge research field. A series of comparison between a new PPT and PDCR81 series had been carried out to check its precision and responding rate at 1g and centrifugal condition. The results show that the new PPT has a nearly equivalent performance to PDCR81 series. Also some suggestions are given to modify this new PPT.
Types and Hazard Effects of Loess Mass Structure
Authors: Lu Quan Zhong , Peng Jian Bing , Wang Yuan , Zhou Bing
Published: June 2012

Soil mass structure which contains structure fissures and structure bodies controls the deformation, failure and mechanical property of loess mass. Based on lots of field investigations, structure fissures of loess mass are classified and graded, types and characteristics of loess mass structures are summarized and hazard effects of fissured loess mass are discussed in this paper. It is very significant to know about the types and characteristics of structure fissures and soil mass structures for analyzing, assessing and solving engineering problems on fissured loess mass.
Study on Model of Heat and Moisture Transfer in Freezing Soil
Authors: Ji Zhi Qiang , Xu Xue Yan , Zhao Chuan Kai
Published: June 2012

The purpose of this paper is to present a numerical model of coupled heat, moisture transfer and their effects on the porosity changes of soil during the freezing process. Coupling among heat, moisture, and mechanical deformations is solved based on finite element method. The equilibrium equations of freezing process are investigated based on segregation theory. The numerical model is applied to a 2D problem of a laboratory frost heave test. Numerical simulation reveals the porosity characters during the freezing process. The frost depths and deformations also the porosity in consideration of the orthotropic properties of frozen soil is discussed.
Study on the Selecting Principle of Test Soil Samples in Nonlinear Seismic Response Analysis of Stratified Site
Authors: Chen Xue Liang , Gao Meng Tan , Li Tie Fei , Yan Zhao Lun
Published: June 2012

Soil dynamic nonlinear experimental results have significant impacts on the seismic response of engineering site, but how reasonable and effective to select soil samples for soil test, there is no good solution. Using detailed drilling velocity, density data, and rich soil test data of Shanxi Linfen Iron and Steel Hospital engineering site, four models are established and are analyzed for this problem. The results showed that: less than 3 meters of soil layer, each layer select one soil sample, for the thick soil layer, the rules of selecting one soil sample about every 3m thickness for the soil test, are recommended. If selecting one soil sample about every 5m~6m thickness for the thick soil layer, the calculation error is about ±10%.
The Effect of Corn Stalk Microcrystalline Cellulose on Thermal and Mechanical Properties of Chitosan Composites
Authors: Li Chun Guang , Wang Xiang Ping , Liu Lei , Cui Jie Hu , Zhang Rui
Published: June 2012

The biodegradable composite films were prepared from corn stalk microcrystalline cellulose as filler and chitosan as polymeric matrix. The crystallinity, the tensile properties and the thermal properties of the composites were tested. The results show that the tensile properties and thermal properties were improved with the addition of corn stalk microcrystalline cellulose. When corn stalk microcrystalline cellulose account for 10% of the chitosan quality, the initial decomposition and maximum weight loss rate temperature was raised by 13.19°C and 38.84°C, tensile strength increased by 83.55% and elongation at break increased by 77.38% compared to those of pure chitosan
Study of the Effective Curing Parameter for Pre-Cast Concrete
Authors: Ba Ming Fang , Qian Chun Xiang
Published: June 2012

The effective initial steam-curing and water-curing duration on concrete with lower water-binder ratio were investigated with XRD, TG-DSC, X-ray CT, SEM-BSE and MIP techniques. According to the effects of initial curing on the micro-structural characteristics of the pre-cast concrete, the effective steam curing duration is 10-14 hours and the effective water curing time was determined not to be over 7 days.
Development and Testing of Chemically-Based Self-Consolidating Concrete
Authors: Arezoumandi Mahdi , Ezzell Mark , Volz Jeffery S.
Published: June 2012

Self-consolidating concrete (SCC) has the potential to significantly reduce costs associated with concrete construction. SCC is a highly flowable, nonsegregating concrete that has a variety of advantages over conventional concrete (CC). However, SCC is not without its problems, which can include increased creep and shrinkage, as well as decreased bond and shear strength. The goal of this research project was to evaluate the creep, shrinkage, and shear behavior of a chemically-based SCC mix. One of the benefits of a chemically-based approach is the potential to eliminate the negative side effects of many SCC mixes. The investigation included development of the mix design, construction and testing of creep and shrinkage specimens, and construction and testing of full-scale beam specimens to evaluate the shear behavior. The results indicate that a chemically-based SCC performs as well or better than conventional portland-cement concrete.
Properties of Profiled Steel Sheet-Concrete Structure under High-Temperature
Authors: Zhu Desheng , Liu Ji Ming , Liu Zeng Wei
Published: June 2012

Profiled steel sheet-concrete composite slab is a common structural elements in composite structure, mechanical properties in high temperature and thermal characteristics of the steel-concrete structure are the basis to analyzing structural response while in fire, bonding properties of profiled steel sheet and concrete play a key role in exerting the composite effect of steel and concrete in composite slabs.
Influence on Activation Property of Coal Gangue by Calcining Temperature
Authors: Gong Chen Chen , Yan Xiao Bo , Lou De Li , Li Dong Xu
Published: June 2012

Influence on activation property of coal gangue by calcining temperature was discussed. The experimental results show that C12A7 and C2S with hydraulic-activity are created in coal gangue calcined at 900 - 950°C which has reasonable pore distribution after hydrating.
Temperature and Stress Fields of Reactive Powder Concrete under High Temperature
Authors: Liu Jin Hui , Liu Hong Bin , Ju Yang , Tian Kai Pei , Wang Li , Zhang Qin Gang , Zheng Jiang Tao
Published: June 2012

The temperature and stress fields of reactive powder concrete under high temperature are investigated using finite element analysis software COMSOL MULTIPHYSICS. In this simulation, the influence of variation of thermal parameters with temperature on the temperature and stress distribution is taken into account. The temperature and stress distribution are obtained. And the variation rule of numerical results shows very good agreement with the experimental data.
Risk Assessment and Diagnostic Method of Sulfate Attack of Cement-Based Material
Authors: Zhang Feng Chen , Fang Yong Hao , Shen De Jian , Zhou Ji Kai
Published: June 2012

It is very difficult to evaluate risk of sulfate attack and diagnose the form of sulfate attack of cement mortar and concrete because of the diversity of attack form and complexity of erosion phases during sulfate attack, which affect repair of concrete component damaged by sulfate attack mostly. From the sulfate ions, ambient temperature and humidity of service environment as well as local climate characteristics, key components of building structures suffered great risk of sulfate attack should be inspected well and master the property of cement-based material, and then evaluate the risk of sulfate attack. In this foundation, three main erosion phases which are ettringite, gypsum and thaumasite are distinguished by micro-analysis and so the form of sulfate attack can be identified.
Synthesis of Lignin-Modified Sulfanilate-Phenol-Formaldehyde Condensate and Application as Concrete Superplasticizer
Authors: Pang Yu Xia , Wen Wei Neng , Lou Hong Ming , Ouyang Xin Ping , Qiu Xue Qing
Published: June 2012

Modified sulfanilate-phenol-formaldehyde condensate (MSPF) was synthesized by a reaction among soda lignin, sodium sulfanilate, phenol and formaldehyde. Optimal conditions of synthesis were obtained by studying the effects of raw material consumptions and reaction time on the dispersive property of products. Evaluation the applying performance of MSPF indicated that this new superplasticizer has an excellent water-reducing effect, and it can improve the compressive strength of hardened concrete obviously, especially the latter compressive strength. Most important of all, MSPF not only inherits the slump-maintaining capacity of aminosulfonate-based superplasticizer, but also overcomes the shortcoming of bleeding by improving the water retention capacity and reduces the segregation of mortar or concrete. Results show that MSPF is a potential superplasticizer for the high-strength and high-performance concrete.
The Study on Sulfate Resistance of Concrete Containing Admixture Mineral
Authors: Zhao Mei Li , Wang Su Qing , Li Ai Xiang
Published: June 2012

Admixture mineral has been replaced part of cement in high performance concrete to improve the durability and sulfate resistance of the concrete.In this paper,the compressive strength of the concretes with adimixture mineral and without admixture mineral had respectively measured after 28ds’ standard curing.Then the concretes had been immersing in NaSO4 solution and MgSO4 solution.The compressive strength of the concrete with admixture mineral and without admixture mineral has been measured after 28ds’and 56ds’ immersing in NaSO4 solution and MgSO4 solution. The concrete with admixture mineral had been eroded lower than the one without admixture mineral after 28 days and 56 days.
The Study on Chloride Corrosion of Concrete Containing Admixture Mineral
Authors: Zhao Mei Li , Li Ai Xiang , Wang Lin Tong , Chen Yun Fa
Published: June 2012

Chloride ions were harmful to the performance of the concrete.Admixture mineral had been replaced part of cement in high performance concrete to improve the durability and chloride resistance of the concrete.In this paper,the compressive strength of the concrete with admixture mineral and without admixture mineral had been measured cured after 28 days. The results had been shown that the compressive strength of the concrete without admixture mineral is lower than the one with admixture mineral after 28ds’and 56ds’ immersing in 5%NaCl solution. The quantities of electricity through the concretes with 30% admixture mineral were lower than the benchmark concretes. The current of C30 and C40 concretes with admixture mineral was lower than the benchmark concretes.The concrete with admixture mineral had been eroded lower than the one without admixture mineral.
Research on the Affective Factors of the High-Temperature Behavior of the Colored Asphalt Mixture Based on the Grey Relational
Authors: Feng Hong Wei , Han Chun
Published: June 2012

The negative factors of the colored asphalt mixture extremely correlate to its high-temperature behavior. With the Grey Relation Analysis, this paper makes a thorough analysis of the affective factors on the high-temperature behavior of the colored asphalt mixture, the result of which shows that the affective factors can be classified as the softening point of colored asphalt and the aggregate ratio of mixture. The research findings will provide a beneficial reference for the design of colored asphalt mixture.
A Comparison of Combined and Tubular Cast Steel Joint on Mechanical Properties
Authors: Li Ming Fang , Cai Yuan Qi
Published: June 2012

In order to provide scientific basis for design and application of cast steel joint, this paper researches on mechanical properties of tubular-plate combined cast steel joint and tubular cast steel joint, which work in International Expo Center in the most unfavorable load condition. Finite Element Method (FEM) is employed to analysis the mechanical properties of the complex cast steel joint and an optimize solution is given. FEM based on large deformation theory and material nonlinearity obtained ultimate load and failure mode of the joints. The results show that, force transmission path of combined cast steel joint is complex for its cross-section shape of branch changes much; stress concentration is very obvious on the branch. In contrast, the force transmission path of tubular cast steel joint is clear and concise; the phenomenon of stress concentration alleviated effectively, the efficiency of material improved greatly; in the same amount of material, the ultimate bearing capacity of tubular cast steel joint increased by 9.5%. The joint design should follow the principle of simple and practical in premise of mechanical requirements.
The Symplectic Solution for the Bi-Directional Functionally Graded Piezoelectric Materials
Authors: Yang Y Z
Published: June 2012

The symplectic method is applied to study analytically the deﬂection field of bi-directional functionally graded piezoelectric materials in this paper. And the material properties varies exponentially both along the axial and transverse coordinates.The dual equations were presented by variation principle and introducing separation of variables used. Then in the symplectic space which consists of the original variables and their dual variables, the problem can be solved via symplectic expansion. This comparisons with experimental data were carried out to verify the validity of the symplectic method.
Selection and Lab Research of Retarder for Phosphoaluminate Cement
Authors: Ma Cong , Lu Chang , Guo Xin Yang , Guo Sheng Lai , Zhang Da Qian
Published: June 2012

For now, the compressive strength of Portland set-cements which have been eroded by formation fluids for many years would decline to some extent. Therefore, we have taken into account that phosphoaluminate cement with better performance has a possibility of applying to cementing engineering. The thickening time of phosphoaluminate cement paste is too short; hence, this article has studied on the influence of several commonly used retarders for Portland cement. The research shows that the same retarder has greatly different effects on Portland cement and phosphoaluminate cement. At 75°C and atmospheric pressure, the thickening times of phosphoaluminate cement slurry with different retarders and various added amounts have been tested. By comparison, we conclude that citric acid has the most efficient retarding effect. In the tested range, the thickening time and added amount of citric acid demonstrate a regular linear relationship. As a hydroxyl acid, citric acid can be used as a retarder for phosphoaluminate cement.
Study on a New Cement for Deepwater Well Cementing
Authors: Wang Cheng Wen , Peng Zhi Gang , Wang Rui He
Published: June 2012

In view of the new concerns in deepwater cementing, such as low temperature, shallow water/gas flow and so on, that can not be efficiently solved with conventional cement systems, a new SP-D cement with calcium sulphoaluminate and silicate was developed to adapt to deepwater low-temperature cementing. Test results show that the SP-D cement possesses high early-strength under low-temperature, favorable compatibility with conventional accelerators and retarders, and can be used to prepare the low density cement slurries combining with microsphere. The research offers a new SP-D cement for deepwater cementing with favorable high early-strength, improved migration control ability and minute expansion of set cement, and also shows prospective solution for the confronted problems in deepwater cementing.
Green Building Materials - The Research and Use of Diatomite
Authors: Zhang Jian , Xu Wei , Wang Hao , Wang Xiao Xin , He Cun Tao
Published: June 2012

The special physical characteristic of diatomite was described in the paper. The point and superiority of the diatomite for application in coating and high-performance concrete were also discussed and it will have broad prospects application in the future.
Fabrication and Characterization of Cellulose Acetate Ultrafine Fibers Containing CdTe Quantum Dots by Electrospinning
Authors: Zhao Dong Mei , Sun Li Guo , Wang Ming Qiang , Li Jian
Published: June 2012

Aqueous CdTe quantum dots(QDs) with different colors were synthesized. Fluorescence spectroscopy analysis showed that synthesized CdTe QDs possessed narrow size distribution. TEM image indicated that the average size of CdTe QDs was 4nm. Fluorescent fibers were prepared by electrospinning mixed solution of CdTe QDs and CA. SEM and TEM photographs showed that the diameters of fibers were 300-700nm, QDs were well dispersed in CA fibers. Fluorescence micrograph showed the fluorescence color and brightness of QDs were not significantly changed after compounding QDs into fibers. The addition of QDs resulted in improvement of crystallinity of the composite fibers by XRD observation.
Nondestructive Structure Analysis of High-Strength Steel Wire for Suspension Bridge Engineering
Authors: Yang Fan , Fan Ying Ying
Published: June 2012

High strength of drawn pearlitic steel wire is widely utilized in suspension bridge engineering. One of the most powerful nondestructive analysis methods on determining the dislocation character of this heavily cold worked material is the analysis in the broadening in the X–ray diffraction lines. In this letter, line-profile simulation based on Fourier analysis in the drawn steel wire is employed. The analytical process taking size and dislocation broadening into account provides the dislocation character on density and arrangement parameters, which is beyond effective over conventional metallographical approach.
Core Materials of Vacuum Insulation Panels: A Review and Beyond
Authors: Li Cheng Dong , Chen Zhao Feng , Wu Wang Ping , Chen Zhou , Zhou Jie Ming , Cheng Xue Yu , Su Dan
Published: June 2012

Vacuum insulation panels (VIPs) are regarded as one of the most promising high performance thermal insulation solutions on the market today. The insulation performance of VIPs mainly depends on the quality of core materials. This paper compared three types of core materials, namely foam insulation material, powder insulation material and fibrous insulation material. Novel structure of core materials which is fiber pore structures packed with different size powder particles is also put forward on this paper. The aim of this paper is to investigate and compare various properties, requirements and possibilities for traditional core materials and put forward possible future core materials of VIPs.
Effect of W/B to the Time Dependent Chloride Diffusion in Concrete with GGBS
Authors: Song Lu Guang , Sun Wei , Gao Jian Ming
Published: June 2012

This paper studied the influence of water to binder ratio to time dependent diffusion coefficients in concrete exposed to marine environments. And a refined diffusion model which considered the time dependent apparent diffusion coefficients and time dependent surface chloride concentration was established. It was found that both apparent diffusion coefficients and surface chloride concentration are time dependent and both are significantly influenced by water to binder ratio. Apparent diffusion decrease with time while surface chloride concentration increase with time. but water to binder ratio has similar influence to the constant of time dependent diffusion coefficients and the parameter of time dependent surface chloride concentration.
Performances of Carbon Fiber Cloth Reinforced Bamboos
Authors: Huang Gui Qiu , Huang Zhen , Jiang Jing , Deng Xue Yuan
Published: June 2012

This paper focuses on the mechanical properties of carbon fiber cloth reinforced bamboos. Using the carbon fiber cloth to reinforce circularly the bamboo can protect dry bursting of the bamboos and improve its mechanical performances. A series of experiments were carried out to investigate the compressive strength, tensile strength and bending strength of bamboo reinforced with carbon fiber cloth. The mechanical performances of bamboos with and without reinforcing were compared and the efficient reinforcing method was suggested, with such method the compressive strength and bending strength of carbon fiber reinforced bamboos could be increased obviously compared with that of bamboos without reinforcing.
Experimental Study on Carbonation Resistance of Ready-Mixed Concrete
Authors: Zhu Jing Song , Sun Ya Li , Zhu Yue Feng , Chen Dan Fei
Published: June 2012

By means of accelerated carbonation tests, the carbonation resistance of concrete in relation to the variation of water-cement ratio, fly ash content and curing conditions is studied in this article. The results show that under the standard curing conditions, with the fly ash content of 20%, in response to different water-cement ratio, the carbonation depth of concrete and the water-cement ratio are presented more or less in a linear relationship. At the water-cement ratio of 0.40, there is hardly any carbonation effect onto the concrete. However, at the ratio of bigger than 0.60, the carbonation depth of concrete increases in a speedy way. Under the standard curing conditions, at the water-cement ratio of 0.55, with the fly ash content of lower than or equal to 30%, the carbonation resistance of concrete is good enough to fulfill the design criteria of 50~100 years for service life of important and general buildings, while the compressive strength declines by less than 10%. But under the condition of 1d curing with retention of moisture followed by curing in the air until 28d, with no fly ash content, the carbonation depth of concrete has reached 35mm, which fails to fulfill the design criteria of 50 years for service life of general buildings. It is therefore concluded that the control of water-cement ratio, the control of fly ash content, and the sufficient curing with retention of moisture in early stage are all the essential factors to ensure the durability against carbonation for the concrete with fly ash content.
Study of Constitutive Relationship Model of Material Structure Based on Full State Function
Authors: Wei Zhen Hai , Wang Meng Shu , Zhang Ding Li
Published: June 2012

The structural problem is the key and difficult point for the study of material composed of granules. In this paper, theory of full state function for material structure is put forward by examining the structural morphology of the material. The full state function of material structure reflects the structural properties of material. Thus it can also reflect the variations in of mechanical and geometric properties of material under external force, i.e. the constitutive relationship of material. The constitutive relationship established based on full state function is abbreviated as "full constitutive relationship”, which considers the structural properties of material. The constitutive relationship not only can derive constitutive relationship which considers material structure, but also the constitutive relationship with the identical form as that in classical theory when material degenerates into typical ideal elastic-plastic material. The theoretical method proposed in this paper transforms dynamic analysis of structural evolution into state analysis. By associating granular scale with macroscopic scale, a foundation is laid for solving of the structural problems of material macroscopically.
Constructing Cardboard Chairs for Children as a Part of Applied Structural Design Education in Architecture
Authors: Herr Christiane M. , Fischer Thomas
Published: June 2012

Within undergraduate architecture programs, structural design is typically taught in the engineering tradition, with a focus on fundamental principles, analysis and calculation. Architecture students however often find it difficult to make use of such learning in the design studio. This paper discusses a course offered to postgraduate students of architecture that was developed to integrate digital architectural design and structural design in the making of physical structures. As a part of the course, students designed cardboard chairs that were presented to and tested by five year old children to demonstrate to architecture students the immediate responsibility that structural designing incurs. The integration of design, construction of structurally sound chairs and the subsequent testing by users enabled participating students to incorporate structural thinking into their design processes. The applied exercises enriched the theoretical aspects of the course and provided opportunities for multi-faceted and engaging learning experiences.
Preliminary Study of Building Pathological Information System for Wall Painting - In the Case of Liang-Yi Temple at Wudang Mountain
Authors: Lei Zu Kang , Zhou Le , Zheng Jie Hong
Published: June 2012

This research focuses on the Preliminary Study of building pathological information system (BPIS) for Wall Painting of heritage architecture. The former field investigation gathers extensive and detailed the pathological characteristics of building fresco. The analysis of the fresco disease helps to establish the framework of deterioration factors for the layer system of BPIS. On account of the similarity of general GIS, the BPIS takes advantage of CAD, Arcmap, ArcCatalog to build a visual system on this study. In the fresco conservation project of Liang-yi temple at Wudang Mountain, this system managed the information of fresco deterioration and provides the suitable conservation strategies of repair engineering for reference.
Spatial Patterns of Traditional Romanian Houses - A Roadmap to National Specificity
Authors: Mitrache Georgica
Published: June 2012

Traditional architecture is the built embodiment of a people’s cultural identity and values, and is often referenced as primary source of inspiration and standard of quality for the creation of new architectural approaches aspiring to be national. This paper is an attempt to pinpoint the essential traits that make our traditional houses specifically Romanian, and which could be employed in contemporary space-making in order to express this cultural identity.
Explore on the Private Community Endowment Building in Jinzhou
Authors: Xu Dong , Liu Chun Xiang
Published: June 2012

At present, the proportion of the elderly share of socio-demographic is gradually increasing, social endowment has become an inevitable trend in Jinzhou. In order to discuss how the private community endowment building to work better for the aged old man, through the questionnaire survey, field interview, comparative analysis, this paper analyzes the present situation and existing problems of private community nursing home. Hope to provide a reference for the construction and development of private community endowment building in Jinzhou.
To Discuss the Application of Parametric Technology in Architectural Design
Authors: Yuan Cheng Zhi , Yi Zhong
Published: June 2012

Architectural parametric design is a process to use intelligent softwares for building a series of geometric models with special mathematical relationships and to modify one unit model’s parameters so that other models are made corresponding modifications. Drawings link is very precise between all professionals such as architects, structure engineers, facility engineers and the efficiency to design and construct is improved greatly compared with traditional way. Parametric design means can generate a large number of colorful building space plastic design options for architects and owners to choose. In the future if architectural parametric design would have been prevalent, our earth will enter the era of flowing cities. This paper has mostly discussed the technology essence, technology platform, advantages and disadvantages of architectural parametric design.
The Emotional Expression of Memorial Architecture Design
Authors: Zhu Rui Ran
Published: June 2012

Along with social progress and people’s increasing demand for the humanistic, the existence of memorial architecture in the contemporary is particularly important. We need to explore the exact design methods of memorial architecture which can adapt to the contemporary people’s aesthetics, and successfully to arouse the contemporary people’s historical complex. This article seeks to analyze the design methods of memorial architecture about the expression of emotional from different ways.
Analysis and Design of Dalian International Conference Center
Authors: Wang Li Chang , Qiu Guo Zhi
Published: June 2012

This paper presents the concepts used for the structural analysis and design of Dalian International Conference Center. The unique building consists of various conference and function rooms. A steel deck of 25,000 m2 is supported by 14 transportation tubes and surrounded by 7 cantilevered conference and function rooms, an isolated opera house with 1800 seats is at the center. Some typical joints are also introduced in the paper.
A Study on Morphology of HongKong Shopping Centers
Authors: Dai Ye Zi
Published: June 2012

It has been several decades since HongKong developed shopping centers. During the process, a set of design concepts, which in accordance with actual local condition, were produced. By studying the Morphology of HongKong shopping centers about exterior environment and interior space, the article tried to analysis their design features as well as the experiences we can learn from.
Space Design Tactics for Green Office Building
Authors: Li Ming Kong , Huang Lei , Luo Zhi Xing
Published: June 2012

Initiated from the volume and space designing before constructing office building, the paper is in purpose of adopt reasonable passive energy saving design so as to make people to have the sense of space comfort and pleasure, decrease the costs for construction and operation, and finally construct more efficient green office building. More details about design tactics and outcome were expressed by a case.
The Amalgamation of Public Art and Public Constructions under the View of Urban Renewal
Authors: Qiao Feng
Published: June 2012

By the comprehension of development and change of the public art’s form and function in modern urban, this paper points out the requirement of public art has not been an adornment of public constructions, but an art-oriented construction tendency in accordance with different site regional characteristics, project type restriction and public requirements. By means of the interactive with social circumstance development, the public art will blend positively in the community conditions and everyday life.
Researching for Maximum Number of Person in the Area Designing of Airport Terminal Building
Authors: Ma Hai Xin
Published: June 2012

It is important to define the area when we design airport terminal building. The use the conception of person’s maximum number and by means of analyse , calculation , application to analyze the data which coming from the practice. Finding the scientific mean for area designing of airport, then supply conveniently to the designer.
A Study on Universities’ Architecture in 1950-60’s — Xi’an as the Model
Authors: Zhang Min
Published: June 2012

Exact figures indicated that there has been a number peak of Chinese university in 1950-60’s. Mostly selected Xi’an, excavated the historical background and research present condition on universities’ architecture of Xi’an in 1950-60’s, analyzed historical value and artistic value of them, as well as demonstrated them should be protected for a necessary part of the modern cultural heritage for university's own, Xi’an, even China, then discussed protection strategy and put forward some reasonable suggestions.
WHANs Based Smart Home System Designing in Intelligent Buildings
Authors: Zhang Yan , Guo Xian Sheng
Published: June 2012

This paper presents a new and competitive smart home system in intelligent buildings based on wireless home automation networks (WHANs). Our designed system has three layers: ultimate controller, data transmission network, and wireless sensor networks. The merits of our system include two folds: 1) it is easy to be adopted in our home without any changing our existing electronic devices; 2) unlike other independent subsystem, the whole-sale functions of smart system are integrated into our system, it can perform well from many anticipant applications. The efficacy of our designed system is proven by practical application environment.
Discussion of Pile Design for High-Rise Buildings
Authors: Guo Shu Qing
Published: June 2012

In order to minimize the final differential settlement and improve the mechanics performance of high-rise buildings and its podium, some pile design concept for the tower-podium connected building is discussed in this paper. According to the interaction of superstructure-foundation-pile, the pile rigidity of tower area (the core area) is enhanced, and that of outer podium area is weakened in the optimal pile design. This measure is applied in some projects with good technical result and economical effects.
On the Construction Technology about Ancient Pagoda Foundations of China
Authors: Li He Qun , Zhang Fang , Duan Pei Pei
Published: June 2012

Foundations are vital of constructing pagoda. First dig the foundations, and then tram trinity mixture fills one layer after layer. In order to reinforce foundations, wooden pillars and brocken stones are used, especially in softer soil zone. In addition, there is a minority of rock foundations, mainly in the south of the Yangtze River of China. Many ancient pagodas stand up to now closely related to solid foundations.
Design of Urban Residential Small Lifting and Transferring Solid Garage
Authors: Zhang Tieyi , Huang Jiang , Zhou Xiao Rong
Published: June 2012

To meet the requirements of urban residential parking, a kind of small mechanical lifting and transferring solid garage which has three storey with a pit has been designed instead of solid garage building. The design principle and methods of the mechanical solid garage are presented.
New Analytical Approach to Linear Intersection and its Application
Authors: Zeng Huai En
Published: June 2012

Linear intersection is a frequently encountered issue in surveying engineering. The paper firstly reviews the common analytical approaches, and then introduces a new analytical approach based on Sylvester resultant, which does not use differencing and substitution, thus is direct and faster, lastly it is very efficient to make the adjustment of more than two known points’ linear intersection with the initial values computed by the new approach. Numerical case is demonstrated.
Experiment on Improving Performance of Recycled Coarse Aggregate from Waste Concrete
Authors: Sun Li , Yun Ying Wei
Published: June 2012

Recently recycled coarse aggregate concrete tends to be developed by using waste concrete considering environmental issues and conserving natural resources. However, performances of recycled coarse aggregate concrete are relative low compared with ordinary concrete due to the differences between recycled coarse aggregates and natural ones. In this research, developed mill is used to shuck the cement paste adhering on the surface of coarse aggregates to obtain shucking recycled coarse aggregates. Experimental results demonstrate that the performances of shucking recycled aggregates and concerned concrete are both improved.
Experimental Study on the Radiative Properties of a Sedum lineare Greenroof
Authors: Feng Chi , Wu Chen Chen , Meng Qing Lin
Published: June 2012

Greenroofs are increasingly popular throughout the world. Radiative properties of greenroofs are important for the analysis and enhancement of their thermal performance. The radiative properties of a typical Sedum lineare greenroof were studied in this paper. Experimental results revealed that the solar radiation absorptivity, longwave radiation absorptivity and emissivity of this Sedum lineare greenroof were 0.84, 1.0 and 1.0 respectively.
Research on Energy Consumption Tread of Residential Building in Beijing Based on Energy Audit
Authors: Wang Qing Feng , Wang Yan Li , Li De Ying , Na Wei
Published: June 2012

Beijing building energy efficiency work has been carried out for 20 years, which played a significant role in building energy saving. Based on the energy audit which is site test and statistics of building energy consumption analyses the energy consumption of residential building in Beijing. Discusses the residential building energy consumption characteristics and gives the energy consumption tread of residential building in Beijing. The results show that Beijing's residential building energy consumption per unit area is reduced year by year, which is mainly related with the implementation of the Beijing building energy efficiency standards.
A Model of Effective Thermal Conductivity for Planting Soil of Green Roof
Authors: Zheng Shu Kui , Tang Ming Fang , Yang Zhen Jing
Published: June 2012

For insulation, green roof has been widely applied and researched in recent years. The effective thermal conductivity (ETC) of planting soil of green roof plays an important role to insulation. The ETC of six kinds of compound planting soil, usually used in green roof，were measured with different water content. The results show that the ETC of compound planting soils has linear relationship with weight humidity. A sensible, albeit simplified mathematical model, with weight humidity and dry apparent density as variables, was established for the dynamic ETC of compound planting soil. To verify model accuracy, the calculation data of ETC of compound planting soil, which under natural climatic conditions for 2 years, were compared with experimental data, and the results indicate that the model have high accuracy in a wide range of weight humidity. In additional, the ETC proper range of compound planting soil was derived.
The Finite Element Analysis of RC Energy Absorption Columns Based on ABAQUS Software
Authors: Ma Hua , Wang Hong Huan , Li Zhen Bao , Sun Xin Yu , Zhang Xue Wei
Published: June 2012

In this paper, the analysis work is conducted for simulating the experimental study on the energy absorption columns performed previously. The software ABAQUS is used for fulfillment of the research. The concrete damage plasticity model is adopted for the calculation of the macro-synthetic fiber-reinforced concrete material used in the columns. The viscosity coefficient and the damage factore of concrete are discussed, and the results analyzed agree with experimented.
Investigation in Rural Buildings’ Damage Caused by Local Strong Wind in Suihua
Authors: Xie Heng Yan , Chai Dong Dong , Zheng Xin
Published: June 2012

In May 15th 2010, a strong wind occurred in Suihua, which caused severe damage of building. In order to get information about damage of buildings caused by strong wind, an investigation was conducted in May 18th 2010. Through observing and interviewing, the first-hand information on the damage of rural buildings subjected to local strong wind were got. Combined with the investigation results after the disaster, an introduction to the hazard around the local strong wind region in Suihua is reported. For half-timber houses, the enclosure structure totally damaged and the gable wall was almost totally broken. For masonry-timber structure buildings, the whole structure collapsed in the strong wind. Some conclusions were got: Some buildings conforming to design code is better than what were anticipated, but the rural buildings without official design damaged serious.
Exploration on Establishing Urban Planning Administration Units: A Case Study of Harbin, China
Authors: Zhao Cong Xia , Zhou Peng Guang
Published: June 2012

Urban planning administration units integrate urban planning in many levels and pursue more elaborate plan, to service for the urban administration. This paper studies the establishing method and controlling contents of urban planning administration units systematically, discusses the theory and practical meaning and researches the position of urban planning administration units in urban administration and its developing trend.
Study on the Development of Chinese Real Estate in the Context of Urbanization
Authors: Liu Chang Ming , Zou Rong Chang
Published: June 2012

With the development of Chinese urbanization process, Real estate industry obtains a rapid development, while some problems also emerge. Based on the current development in real estate industry, in this paper, I will use the Documentary Research Method to analyze the relationship between urbanization and the development of real estate, and to put forward some strategies for the development in real estate, such as widening financing channels, explicating the land property rights, strengthening macro-control as well as improving laws and regulations.
Discussion of Urban Underground Space Planning and Design
Authors: Lu Xin , Ji Jiang Hai
Published: June 2012

Traffic jams, pollution, ecological deterioration as a concentrated form of "City syndrome" is the major problems encountered in the process of urban development in China, this indicates that the tense contradiction of urban land in our country is quite prominent.This article presents the rational development and utilization of underground space, ease the ground hard, so as to achieve harmonious development of urban underground integration on the ground.
Research of Spatial Pattern for Coastal Urban Agglomeration of Liaoning Province
Authors: Sun Jian Fei , Zhang Ling Ling
Published: June 2012

With urban agglomeration of coastal Liaoning province as a case, the paper identifies its spatial revolution process lies in the formation stage which is the second stage of the four stages of urban agglomeration, and concludes the macro spatial pattern of the coastal urban agglomeration in Liaoning province into urban compact district; and the meso-level spatial pattern into metropolitan district. Then it further analyzes the evolving tendency of the two spatial patterns, including mega-city region in the macro level and network city in the meso level.