bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation and Application of High Dropping Non Vibration Self-Compacting Concrete
Authors: Li Shu Jin , Li Jian Fen , Qian Hong Ping
Published: July 2014

High dropping non vibration concrete is widely used in high-rise steel tube concrete construction. In this paper, a high dropping non vibration self-compacting concrete with high mobility, low slump loss, and good anti-segregation ability is developed by mixing addition of PCA superplasticizer and SCC composite expansive admixture. The test results showed that the admixture and cement used in the test possess sound compatibility. The slump flow of self-compacting concrete prepared are more than 660mm, T500 of 2.8~7.5s, 1h slump flow loss of less than 10%, and the segregation rate of less than 7.5%. Through strictly control production and dropping construction, supplemented by field ultrasonic detection measures, the high dropping self-compacting concrete in steel tube achieved successful application for a high-rise building.
Influence Experimental Study on HPI Hydrophobic Compound Hole Plug Concrete Performance
Authors: Huang Zhi De
Published: July 2014

Forming three groups concrete of different gelled material systems, the effecting of HPI hydrophobic compound hole plug on concrete compressive strength, chloride ion permeability resistance and water absorption performance were studied taking CALTITE and 3CC for example. Studies have shown that this kind of polymer can reduce compressive strength, but can improve chloride ion permeability resistance and hydrophobic property of concrete.
Thermal Simulation Analysis of Insulation of the New Heat-Insulation Bricks
Authors: Feng Xiao Ping , Li Chun Ting , Wu Jun Jie
Published: July 2014

Using the ANSYS thermal analysis module to do steady thermal analysis of given heat-insulating bricks. The results show that this kind of bricks can achieve better insulation in both sides; when the thermal conductivity of the heat insulating material in the hole space are less than 0.3 W/(m·K), the bricks can obtain the good insulation effect; the smaller the heat conductivity coefficients of the bricks materials and filling materials are, the better insulation bricks can achieve.
Activity Index of Steel Slag-GGBS Composite Mineral Admixture at Different W/B Ratios
Authors: Li Xin , Wang Qiang , Liu Shu Hua
Published: July 2014

The activity index of steel slag-GGBS composite mineral admixture with different steel slag contents at the W/B of 0.3, 0.4, and 0.5 was investigated. The results show that the activity index of the composite mineral admixture with higher GGBS content is larger, and this phenomenon is more obvious at later ages. At lower W/B, the gap of activity index of different composite mineral admixtures is smaller. The activity index of each composite mineral admixture is higher at lower W/B and at later age. The steel slag-GGBS composite mineral admixture is more suitable to be used in high strength concrete than in low strength concrete. As far as the long-term properties of concrete are concerned, the activity index of the composite mineral admixture at the late age should be adopted.
Effect of Metakaolin on early Strength of GGBS Ternary Concrete
Authors: Mohd Nasir Noor Azline , McCarthy M.J.
Published: July 2014

The article reports a laboratory experimental programme that investigated effect of metakaolin on the early strength of concrete made with ternary combinations of Portland cement (CEM I) with ground granulated blast slag (GGBS) and metakaolin (MK). The various level of cement combinations (65%CEM I+30%GGBS+5%MK, 45%CEM I+45%GGBS+10%MK and 45%CEM I+40%GGBS+15%MK) was examined in comparison to CEM I and equivalent GGBS binary concretes for up to 28 days. Results show that the reduction in early strength is greater with the higher cement replacement level. However, the ternary concrete containing 15%MK has minor increase in early strength compared to those with 10%MK but a significant increase in strength is examined at later age (28 days). It is concluded that the presence of MK compensates the adverse effect of GGBS at early strength development and improves the strength at later ages.
Experimental Study on Factors Affecting the Bond-Slip Properties of Concrete Reinforced by Bamboo-Based Fiber Composites
Authors: Zhou Jian , Ma Su , Hou He Tao , Li Jing Jing , Liu Hai Ning , Chen Lei
Published: July 2014

Bond-slip properties of concrete reinforced by bamboo-based fiber composites were investigated. The influences of strength grade of concrete, bond length, strength grade of bamboo-bar and section form were studied based on the L16(45) orthogonal experiment. The function law was uncovered to support the anchoring checking between concrete and bamboo-based fiber composites. The results show that: the tensile strength of bamboo-based fiber composites stables at 200Mpa with large inflation rate; section form of the composites is the key influencing factor, but should not be too large; bond length and strength grade of concrete are important factors; tensile strength of the composites is not significant factor. C35 concrete, 50 mm bond length, 200Mpa tensile strength of the composites and 10mm*10mm section form are the optimal combinations.
Surface Chloride Ion Concentration Study of Brine Corroded High Performance Concrete (HPC)
Authors: Gao Peng , Yu Hong Fa
Published: July 2014

4 kinds of mix proportion High performance concrete (HPC) was manufactured, whose material was produced from Inner Mongolia areas. During the brine corroded HPC experiment, the effects on surface chloride ion concentration of HPC, which was produced by different curing age and soak time, were studied. And the resistance to corrosion of HPC was analyzed. The curing period of HPC was adopted as 28d, 56d, and 90d. The soak period of brine-corroded HPC was 1 year. The changes of HPC surface chloride ion concentration were obtained in the experiment. Results show that, in the brine-corroded environment, the surface chloride ion concentration of HPC decreases obviously by the extension of HPC curing period. Furthermore, the surface chloride ion concentration of 4 HPC samples increases by the extension of HPC soak period, whose late growth is becoming gently. In the meanwhile, the regression relationship between HPC surface chloride ion concentration and different curing period, soak period is achieved.
The Simulative Analysis of the Thermal Resistance Value of Hollow Block with Different Number of Air Layers and Length with FEMLAB Software
Authors: Yang Hai Hui , Chen Gang , Meng Dan , Li Hui Min , Cheng Xin
Published: July 2014

This paper, with the help of FEMLAB Software, analyzed the change of thermal resistance value of the same hollow block with different number of air layers or with the same rate of holes but different length of air layers and came to such a conclusion that the thermal resistance value can be promptly raised by increasing the number of air layers of the hollow block but decreased when an air layer is equally divided into several holes.
Freedom Sway Space — Discussion on LOFT
Authors: Zhou Ming
Published: July 2014

LOFT is the use of old industrial warehouses and old factories open, spacious, full of personality to build, contagious new cultural and creative industries to gather. Art LOFT This perfect blend of modern and post-industrialization, and has evolved into a fashionable residential lifestyle, showing her unique charm, allows designers to develop freely in this space.
Development and Conceptual Design Epoxy Resin/Emulsified-Asphalt/Cement Composite
Authors: Wang Xi
Published: July 2014

The objective of this article is to provide a paving project for steel bridge deck based on a new composite bonding system of Epoxy resin/emulsified-Asphalt/Cement (EAC). Reinforced both by Cement and emulsified-Asphalt, the resin-based material has reflected good performances, especially rutting deformation at high temperature and adhesive strength with steel blocks, which should be satisfied to long-span steel bridge deck.
Effect of Sodium Citrate on the Hydration Capacity of Hemihydrate Calcium Sulfate Whiskers
Authors: Wang Yu Bin , Yu Le , Wang Hua , He Ting Shu
Published: July 2014

The influence of sodium citrate on the hydration capacity of hemihydrate calcium sulfate whiskers was investigated. The products were characterized by FTIR, SEM and XRD.The results show that the absorption of the sodium citrate on the surface of the hemihydrate calcium sulfate whiskers is not uniform, and the adsorption state also changed with the amount of sodium citrate. Sodium citrate plays role on the hydration capacity of hemihydrate calcium sulfate whiskers.
Preparation of Novel Intermediate Material for Azobenzene Liquid Crystal
Authors: Wang Hong Wei , Ren Jian Wei , Li Yuan Yuan , Zhang Xin , Miao Zong Cheng
Published: July 2014

An novel intermediate of (4-Iodo-phenyl)-(4-trifluoromethyl-phenyl)-diazene for azobenzene liquid crystal was synthesized. 4-Trifluoromethyl-phenylamine as raw material was oxidized by Oxone (Potassium peroxymonosulfate) in CH2Cl2/H2O solvent to synthesize 1-Nitro-4-trifluoromethyl-benzene (m1). The effect of Oxone amount on the conversion degree of raw material was discussed in ditail. Then m1 was coupled with 4-Iodo-phenylamine to obtain the important intermediate, yellow solid, the yield was 52%. The chemical structures of synthetic intermediate was confirmed by FT-IR and 1H-NMR.
Research of Novel Azobenzene Liquid Crystal with High Birefrience and the Phase Behavior
Authors: Miao Zong Cheng , Li Yuan Yuan , Zhang Xin
Published: July 2014

In order to obtain an important azobenzene liquid crystal with high birefrience, click chemistry reaction was used to preparation the compound. In this paper, the novle azobenzene liquid crystal was synthesized by (4-Ethynyl-phenyl)-(4-trifluoromethyl-phenyl)-diazene and C8H17Br as raw materials. In addition, the synthesized compound was characterized by FT-IR and1H-NMR to confirm the consistent structure, and the liquid crystal phase behaviors of phase sequences were investigated by polarizingmicroscope (POM).
Study on Synthesis of In Situ Composite of Nano-SiO2 and Vinyl Acetate-Acrylate Emulsion
Authors: Wang Xiao Hui , Dong Li Min , Wang Ren Li , Lu Han Fei
Published: July 2014

Commercially available nanosilica was modified with silane coupling agent A-151, and then emulsion was synthesized with modified SiO2, vinyl acetate, methyl methacrylate and butyl acrylate by polymerization reaction. Effects the amount of emulsifier, initiator and organic nano-SiO2, etc factors on the performance of emulsion polymerization and latex film were investigated. The best test results of composite emulsion of SiO2and vinyl acetate-acrylate were obtained by theoretical research and experimental operation: modified nano-SiO2content of 3%, emulsifier the content of OP of 3%, potassium persulfate content of the initiator of 0.5%. By infrared spectroscopy, surface of the SiO2had been changed, which showed the performance of situ composite of modified nano-SiO2 and vinyl acetate-acrylate emulsion had been significantly improved.
Analysis of the Art Characteristics of Hui Architecture
Authors: Zhou Yue , Jiao Xin
Published: July 2014

The building custom of Hui nationality has a distinctive characteristics of this nation and distinguishing features of art which is closely related to this nation’s production, life and religious beliefs. Through the analysis of the art characteristics of Hui architecture, we can further understand the aesthetic essence of it.
Smart Behavior of Carbon Nanotubes Cement-Based Composites
Authors: Li Yun Feng , Hu Shu Li , Wang Quan Xiang
Published: July 2014

Smart behavior of cement based composites containing carbon nanotubes was studied under compression. The results show that the conductivity of the composites is related to the pressure level. For monotonic loading, the electrical resistance decreases correspondingly with increasing stress. For cycling loading, the electrical resistance of specimen varies with repeated loading-unloading. It shows that the electrical resistivity changes recoverability.
Influence of Nanosized Silica Component on Physical and Mechanical Properties of a Composite Gypsum Binder
Authors: Voitovich Elena Valerievna , Cherevatova Alla Vasilievna , Zhernovsky Igor Vladimirovich , Fischer Hans Bertram , Strokova Valeria Valerievna , Makarova Natalya Valentinovna , Chikileva Elena Nikolaevna
Published: July 2014

The work presents the results of development of the composite gypsum binder (GB) with nanostructured binder on the basis of silica component (NBC). Introduction of NBC changes the kinetics of hardening, as well as improves physical and mechanical properties of gypsum system. Analysis of the microstructure of the GB has demonstrated in the presence of the NB the size and morphology of crystals are changed, promoting the formation of fine-crystalline structure and increase the contact area between new formations, compared to NBC – free gypsum system. Experimental studies have shown that the mechanical properties of the composite gypsum application of NBC increased, reduced water absorption, density increases, and increases the setting time.
The Research of on the Limit of Permeability Contrast for Separated Quality Polymer Injection by Numerical Simulation Technology
Authors: Song Li Yang , Zhang Ji Cheng
Published: July 2014

According to the feature of the second oil layer in the west block of Beierxi, this paper investigated the relationship between the permeability contrast and the recovery efficiency, and the relationship between the permeability contrast and the descent range of water cut of polymer flooding, using the numerical simulation. From the comparative analysis of the development effect with different methods of polymer-injection, it got the boundary of the interlayer permeability contrast of the positive and inverted rhythm layer in the second oil layer with the separated zone and separated quality polymer-injection respectively. That provided certain theoretical foundation for carrying on the polymer flooding in the region of interest.
Greening of Civil Engineering Materials
Authors: Xu Hua
Published: July 2014

Used in a variety of civil engineering materials referred to civil engineering materials, it is the material basis of all traditional civil engineering civil engineering construction materials, such as: brick, stone, wood, etc., in the construction market has a large proportion But as the size of the material to expand and human population growth caused a global environmental crisis, while construction activity is one of the major activities of human life, natural resources and energy consumption and environmental pollution also have a great impact. therefore , green building materials, environmental protection applications thus born.
Comparative Studies on Mixed Mode Cohesive Interface Cracks of Quasi-Brittle Materials
Authors: Shen Xin Pu , Wang Xiao Chun
Published: July 2014

Concerning on the modelling of quasi-brittle fracture process zone at interface crack of quasi-brittle materials and structures, typical constitutive models of mixed mode interface cracks were compared. Numerical calculations of the constitutive behaviours of selected models were carried out at local level. Aiming at the simulation of quasi-brittle fracture of concrete-like materials and structures, the emphases of the qualitative comparisons of selected cohesive models are focused on: (1) the fundamental mixed mode fracture behaviours of selected interface crack models; (2) dilatancy properties of the selected models under mixed mode fracture loading conditions.
Calculation of Transverse Poisson’s Ratio of Continuous Fiber Reinforced Composites
Authors: Li Yan Ru , Jiang Hai Bo , Chen Wan Shan
Published: July 2014

This paper proposed a calculation model of transverse Poisson's ratio of continuous fiber reinforced composite, in which the fibers are centrally arranged in a representative volume element. According to the equivalent strain rule of matrix and fiber in fiber direction, the formula of transverse Poisson's ratio was deduced by mathematical method, which shows that the transverse Poisson's ratio of the composite material is associated with the Poisson's ratios and the elastic modulus of fiber and matrix. It was shown by an example that the transverse Poisson's ratio of composite was less than the weighted average number of the Poisson's ratios of fiber and matrix , even less than the matrix Poisson's ratio in a large range. The minimum value indicates that the fibers obviously resist longitudinal deformation under the transverse force.
Electric Flux Method Practicability Study on Concrete Chloride Ion Permeability Resistance
Authors: Huang Zhi De
Published: July 2014

Electric flux method working principle, apparatus and procedures were briefly introduced, and the existing problems were analyzed. The authenticity of testing concrete chloride ion permeability resistance were analyzed from the aspects of timeliness and, the practicability combining with actual application and experimental study, the application occasion was put forward. The solutions and improvement measures are put forward for common problems in the process of use.
Research on the Anticipation and Development of Building Information Modeling
Authors: Liu Xuan , Xie Hai
Published: July 2014

Building Information Modeling (BIM) is a digital representation of physical and functional characteristics of a facility. A BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition. Building Information Modeling (BIM) is a process involving the generation and management of digital representations of physical and functional characteristics of places. BIM are files (often but not always in proprietary formats and containing proprietary data) which can be exchanged or networked to support decision-making about a place. Current BIM software is used by individuals, businesses and government authorities who plan, design, construct, operate and maintain diverse physical infrastructures, from water, wastewater, electricity, gas, refuse and communication utilities to roads, bridges and ports, from houses, apartments, schools and shops to offices, factories, warehouses and etc.
Bracing Support Structural Analysis of Foundation Excavation Protection in Limited Soil
Authors: Zhou Shi Chong , Ren Yan Hua , Liu Xiu Feng , Fan Ji Liang , Wu Gang , Li Jun
Published: July 2014

Most of the design programs used in the foundation excavation protection can only simulate and calculate the model of semi-infinite soil. While the limited soil is usually came across during practical engineering, especially in the center of large city. So the results of calculations in these situation can not ensure the security and economy. In this paper, based on a bracing foundation excavation protection project in limited soil, calculate the active soil pressure using MATHCAD, then analyze the bracing reaction force through the equivalent beam method. Finally, comparing the results with the simulation of ABAQUS, the method above could used in the similar situation in the further design of foundation excavation protection.
Study of the Bulk Index Measuring Methods on Foamed Asphalt Cold Recycling Specimens
Authors: Chen Lu Chuan , Niu Wei
Published: July 2014

For the foamed asphalt cold recycling mixture,we mould the specimens under two different gradation using Marshall compaction method.Then we measure the bulk specific density using the volumetrical method, the corelock method, the wax-sealing method and the saturated surface dry method, calculate the porosity and compare the results.The conclusion is that the results are almost the same under the corelock method, the wax-sealing method and the saturated surface dry method, we can choose the saturated surface dry method to gain the porosity in practical use.
Architectural Pattern Construction Mode
Authors: Wang Xi Bin , Yang Zi Sheng
Published: July 2014

Building is one physical form with actual use function, and it is an artwork formed by architects conducting processing and combination to the basic geometric forms in accordance with the law of aesthetics, the author has summarized the formation of the architectural pattern to be several formation modes according to the formation features of the architectural bodies, through the research on these several kinds of formation modes, we can excavate the law of the formation of the architectural pattern and grasp the technique for the architectural image design.
Experimental Research on Fine Sand and Filter Material of Xing-Long Hydroproject Dam Foundation
Authors: Zhu Guo Sheng , Zhang Jia Fa , Cui Hao Dong , Li Shao Long
Published: July 2014

The Xing-long hydro project is situated on fine sand foundation, whose seepage stability is a vital factor to the safety of the buildings. By means of field sampling, seepage deformation test and filter test to fine sand and filter material, the seepage deformation character of fine sand and filter material are studied. The seepage failure gradient of fine sand is very low under natural condition, its seepage stability should be satisfied under the protection of filter materials, but the protective capability of natural filter material is limited, it is suggested that the filter material be optimized by getting rid of the particles less than 0.5mm.
The Application of BP Neural Networks in Cable-Stayed Construction Control
Authors: Zhang Xi Fen
Published: July 2014

Through the related technical information of the monitoring of bridge construction, this is to determine BP neural network's input and output parameters, to establish the neural network fore-casted model, and to carry through the prediction to the main beam of deflection. In the application, the data of deflection deviation has generated through the cast-in-place segmental cantilever to train the BP neural network. The deviations which are produced in the pre-run neural networks predict the follow-up segment in construction, and then simulation control in the cable-stayed bridge is realized in construction process.
Based on the Different Specifications of Jacking Construction of Continuous Girder Bridge Reliability Analysis
Authors: Shen Jian Kang
Published: July 2014

The purpose of this paper is aimed at according to the "highway reinforced concrete and prestressed concrete bridge and culvert design specifications (JTG D62-2004) and (JTJ 023-85) design of jacking construction of continuous girder bridge for reliability analysis. By establishing a finite element model of construction stage and into a bridge stage respectively the reliability index of the typical cross section is analyzed. Aiming at construction stage, by choosing typical cross section of reliability analysis, draw a cross section of reliability index with the change of construction stage. Calculation results show that, according to JTG D62-2004 specification of reliability index calculation results than based on results of calculating the JTJ 023-85 specification. In this paper, the analysis results can provide reference for pushing the construction of the continuous girder bridge design.
Key Technical Issues and Optimization Analysis on Temperature Control and Crack Prevention Measures for Xiluodu Super-High Arch Dam during the Construction Period
Authors: Liu You Zhi , Zhang Guo Xin , Yang Ping , Zhou Shao Wu
Published: July 2014

By utilizing the transverse joint opening and closing iteration technique and the finite element method based on the discontinuous deformation theory for manifolds, and with the help of measured data in situ of temperature, stress and displacement and so on during the construction period, the dynamic tracing feedback simulation/analysis was carried out to the temperature field and the stress field. On this basis, a series of effective safety control measures and methods were systematically put forward, which are beneficial to safety construction in the high temperature season and winter, improvement of the safety coefficient for restrained zones, lowering the cracking risk of low gradation concrete in portholes, ensuring the transverse joints aperture and groutability as well as effective control of the cantilever height and so on; and good effects have been obtained in the engineering practice and the important guarantee may be provided for the overall safety of Xiluodu Super-high arch dam.
A Study to Interior Design Project Management Guideline Using on Historical Building Renovation
Authors: Zhang Wei , Li Yue En
Published: July 2014

There are many western style historical buildings in China, and the old buildings need a renovation and protection for their historical value in culture and facilities. It is an important protection problem for the culture symbols and historical building renovation. In this paper, it presents a old cultural building’s renovation process following the a interior design project management guideline, as the public old building, it should consider its old structure and modern building corresponding, the project cost and the craft combine together in this case study, as the successful case and field symbolic building, it shows a new characters around that place.
Experimental Research on the Frictional Effects of the Slide-Roof System
Authors: Zhang Li Ming , Tian Zhi Chang
Published: July 2014

The experiments of a five-story steel frame on shaking table verify that the slide-roof system can markedly reduce vibration. When the ground motion is strong, the vibration reduction is effective and the influence from the static friction is little. The experiments show that this slide-roof system possesses good robustness to its friction.
Crowd Disaster Risk Identification in Large Sport Venues
Authors: Huang Li Di , Jia Jiao Jiao
Published: July 2014

A significant number of crowd accidents have occurred in sport venues in the past as well as recently. Statistics of crowd disasters were discussed and the results of time and location are 1509 deaths and 10642 injuries, incidence of crowd accidents in grandstand areas is up to 54%. Serious security risks still exist, and we should pay more attention to sports building safety. Different stages of accidents include crowd gathering, trigger factors, accident happened and rescue failure. Finally, crowd disaster risk in sport venues was identified. This paper aims to lay a foundation to improve comprehensive disaster prevention system in stadium.
Method of Protection and Renewal on Nanyang Historical Street District - An Example on Town Hall Historical Street District in the Center of Nanyang Town Hall
Authors: Tan Zheng , He Hang
Published: July 2014

Nanyang is the second batch of historical and cultural city announced by state council,the historical street in the center of Nanyang town hall has a long story, it is the earliest form of Nanyang and is important to continue the Nanyang historical context. Aimed at the protection status of Nanyang historical street district,authors approached the historical street district protection and renewal method by two aspects. First, Positioning objects to be protected and proposing protection method;second,combining the historical district protection sample at home and abroad, analyzing the field research, and extracting historical elements, to make the renewal design.
On Compilation and Examination of Special Safety Construction Scheme of High-Risk Project
Authors: Xiong Li Li , Hu Ni , Li Hao
Published: July 2014

Taking found pit supporting construction as an example, this paper aims to point out what should be included and emphasized in an effective special safety construction scheme by analyzing complied contents, examined objects and examining procedure of special safety construction scheme of high-risk project.
Project Portfolio Selection Process for Major Construction Enterprise
Authors: Yu Shi Wang , Guo Na
Published: July 2014

There are many different kinds of projects in major construction enterprises, thus, how to perform the right projects rightly is a realistic issue for the top leader of these enterprises. A qualified selection process of the project portfolio can help to do the right projects. In this paper, a project portfolio selection process for major construction enterprise was introduced and details of how to handle in every stage was also discussed.
Research on Performance Evaluation Common Index System of Government Investing Construction Projects
Authors: Ke Hong , Liu Chang , Li Sai
Published: July 2014

On the basis of common index system framework of budget performance evaluation", the paper improves the performance evaluation index of various stages (inputs, processes, outputs and effects) of common index system framework of budget performance evaluation, according to the stakeholder theory, project management theory, mapping principle and combined with project implementation process. And it provides the implementation details of various stages of project management based on key performance indicator method. So it designs a set of performance evaluation common index system to provide reference for improving management performance of government investing construction projects.
Chongqing Fuling Fifth Landslide Treatment Project Design Based on Value Engineering
Authors: Li Ju Fang , Liu Zhen Kui , Zhang Jun De , Wu Hong Gang
Published: July 2014

Chongqing Fuling Fifth landslide is a large landslide along the layers of rock. It has the following characteristics such as high sliding speed, serious damage and other characteristics. Based on landslide characteristics and governance requirements, we set three governance programs. Considering the function and cost, we use DARE method for value engineering analysis. The analysts believe that an optimum solution can be given priority, and the program has also been recommended by the review panel members unanimously approved. Upon completion of the large program selection, we further analyzed the principle of value for the selected program to optimize the sub-projects, which achieved good economic and social benefits of cost-effectiveness.
Based on the Multiparty Project Management Research of Green Construction
Authors: Li Hui Ling , Gao Xin Rui , Xie Ji Yong
Published: July 2014

According to the specific construction process, the paper combines with the characteristics of green construction, and fully considering the synergy of participants including government, owner, contractor and material and equipment supplier, at the same time, it builds the project management system framework of multiparty green construction to normalize management mode of green construction during the process of construction. It would analysis the responsibilities of participants of green construction, and achieving the means of green construction, in order to obtain the goals of green construction, to improve the technological content and quality of green construction, to promote the rapid development of green construction, meanwhile, and to achieve the unification of social benefits, economic and environmental benefits.
Discussion on the Cost Management and Control of Construction Project
Authors: Zhang Ying , Xiong Li Hui
Published: July 2014

The cost control of the engineering construction project is a complex dynamic system, which is throughout the whole project process, starting from the bid to the end of the project warranty period and every link needs to implement scientific and strict cost control. It is very important to study and work at the cost control of the engineering construction project and to improve the service efficiency of the construction funds. This paper expounds the connotation and significance of the cost control of the engineering construction project, focusing on the analysis of the construction of the project before construction, construction process and construction after the main work links in each stage of cost control methods and measures, which provides reference for the engineering construction enterprise to cost control and improve the level of project management.
Discussion on Core Elements in Engineering Project Management
Authors: Liu Chang Ming
Published: July 2014

Comprehensive research and other methods were applied to advance that the purpose of project management is to improve core competitiveness in this study, and it is as a proposition. It is discussed that core competitiveness should be improved by taking economic efficiency enhancement as the goal, management mode improvement as the main body, management process refining as the premise and staff quality strengthening as the purpose. The core of improving project management level is to improve the literacy of managers, including ideological and political literacy, moral quality literacy, professional and technical literacy and physical and mental literacy. It is concluded that the manager capacity structure should be improved in order to improve the effectiveness of project management. Thereinto, learning ability is a prerequisite; planning ability is a basis; decision-making ability is the key; technical ability is the main body; adaptability is the core; cohesion ability is a guarantee.
Analysis of Relevant Stakeholders in the Construction Waste Management
Authors: Yao Wei Ming
Published: July 2014

This article divides management of construction waste into three stages that are appearing, transporting and classifying, recycling. In the next, analyze of all relevant stakeholders in the stages. Only draws up the government effective policy, the construction waste recycling industry develops rapidly.
Study on Construction Bidding Management Based on GA-BP Neural Networks
Authors: Wu Tian Bao , Liu Xun , Zhou Tai Quan
Published: July 2014

In the bidding evaluation, the deviations are likely to be brought about by experts' subjectivity, arbitrary and tendentiousness. A method for construction project bidding based on the BP neural network improved by GA (Genetic Algorithm) is proposed. On the basis of the basic theory of the BP neural network, discussions are provided on how to rectify the drawbacks of slow convergence and prone to convergence to minimum with the use of GA. The model is successfully applied GA - BP artificial neural networks to project, which are in concert with the result of experts. The study makes contribution to research about the evaluation system of construction bidding management.
Research on the Affecting Factors of Claim under Bill Quantity of Construction Works in China
Authors: Yin Yi Lin , Hu Wen Zheng , Du Ya Ling
Published: July 2014

Claim is an important part of the code of valuation with bill quantity, but the connotation and extension of claims are not defined in the valuation mode of Bill of Quantities. Therefore, on the basis of foreign constitute systems, this paper uses deductive reasoning method to study the presumptive constitute of cost claim research. Combined the assumption with the characteristics of BQ in China, this paper puts forward the constituent system framework of construction cost claiming in China, and conduct specific research on profit claim。
Simple Discuss of the Construction of Engineering Cost Information System
Authors: Guo Hai Yan , Wang Lei
Published: July 2014

The paper analyzed the current situation of the management of engineering cost information,. After considering the problems in information managements, from the perfecting of cost information collection channels, the instituting of the unified and standard systems of cost information classify codes, the strengthening of macro-managements of administrations and the instituting and maintaining of engineering cost information network, it gave solutions to complete the development of engineering cost information system.
A Study on National Enterprise Technology Center (NETC) Evaluation Criteria for Construction Industry in China
Authors: Yu Zhi Yin , Zhao Shu Kuan , Gong Shun Long
Published: July 2014

In China, the evaluation of National Enterprise Technology Center (NETC) for theconstruction industry currently falls under a set of universal criteria, which mainly follow thetechnological innovation pattern of the manufacturing industry, and thus lack applicability. Thispaper takes the distinctive features of the innovation pattern of the construction industry intoconsideration, while maintaining consistency with the current system, and suggests an optimizedevaluation system, which is more applicable for the construction industry.
Professional Specialty Ability Research of Construction Management
Authors: Feng Zhen , Wang Na
Published: July 2014

Now in china, the professional specialty of construction management began nearly 1980s, so it is very late, and the talent training mode are different in various colleges, especially the analysis to the professional specialty ability is not mature. This article combining with the practice of Disaster Prevention Institute of Science and Technology, analyze and study the professional specialty ability of construction management.
Geoadditive Models for Property Market
Authors: del Giudice Vincenzo , de Paola Pierfrancesco
Published: July 2014

Geoadditive models represent efficient and flexible tools, useful in modeling realistically complex situations. Mainly they are based on semi-parametric regressions often integrated by Kriging techniques for the spatial interpolation of surfaces. One of the choices to be made for determination of interpolated surfaces regards the specific function to be used to estimate the unknown values​​. The choice may currently occur between exponential, gaussian, linear, rational or spherical functions. In this working paper a geoadditive model based on penalized spline functions has been proposed, in order to obtain improvements in forecasting of interpolated surfaces respect to usual Kriging techniques. The main aim of this study is the identification of methodology in able to define and delineate the real estate market scenarios for urban areas through analysis of property values and their spatial distribution.
Approach of Cross-Country Comparisons on Residential Construction Industry for China
Authors: Xu Cheng Gang , Sheng San Hua
Published: July 2014

In cross-country comparisons of construction economy, the purchasing power parity index as a currency conversion coefficient can substitute for the exchange rates reduce construction price distortions. According to BOCC method, the special development conditions of residential construction industry for China and the regional differences of non-tradable goods, we propose the practices estimating purchasing power parity for the basic building, small and micro engineering between the countries of geographical proximity, which help the development of space index of China's construction cost and are an effective ways to accelerate contacts with the international construction market.
Research on Interface Management between Owner and Design Unit
Authors: Bian Fang
Published: July 2014

Design activities occupy the dominant position in the construction engineering, it have an important impact on investment, quality and schedule objectives of construction.But in the design stage, many problems exist in the interface between the owner and the design unit, that brings great latent danger for the smooth implementation of the project.Whether interface management is effective determines the success or failure of the project. Make the interface between owner and design unit as the object,this paper presents methods of coordination center based on the the theory of interface management.The method can be used to manage the interface between owner and design unit effectively.
Undivided Real Estate Shares: Appraisal and Interactions with Capital Markets
Authors: del Giudice Vincenzo , de Paola Pierfrancesco
Published: July 2014

The appraisal of undivided and indivisible real estate shares represents a recurring and underestimated issue by professional appraisers. This problem requires a logical solution considering that the undivided real estate shares are more difficult to sell and, consequently, there is a decrease of their market value. It follows that issue can be referred, in theoretical and practical terms, to the real estate investment risk valuation and on how to convert this risk into an expected rate that can compensate it. In this paper theCapital Asset Pricing Modelhas been integrated withPenalized Spline Semiparametric Methodin order to obtain an algorithm that allows to rationalize the appraisal of undivided real estate shares using easily accessible data.
On the Ideas of Modern Engineering
Authors: Xue Hui Zhong
Published: July 2014

The engineering ideas, which reflect value pursuits of engineering practitioners, are overall, principled, programmatic requirements for engineering. From the function aspect, the engineering ideas are the fundamental guiding ideology as well as essential principles for engineering practices. Based on the predecessors' achievements, this paper presents that the core ideas of modern engineering can be summarized to have following attributes: people-oriented, resource saving, and environmental friendly. Furthermore, the relevant explanations and demonstrations to each point are incorporated.
Study on Agent Construction System in Engineering Projects
Authors: Li Sheng Nan , Wang De Ling
Published: July 2014

Agent constriction system is a product of government reforming investment system. Firstly, the definition of agent constriction system was given based on governmental decision. Secondly, agent construction mode was compared with general contract mode from the point of identity, management main body, management objective and character. Moreover, sameness and difference were discussed between agent construction mode and project management mode. Thirdly, Chinese actuality of agent construction system was analyzed. Some important problems have exposed during the operation process. They are about legal status of agent units, agent units’ right, agent charge standard, talents echelon development of agent units. Finally, pointed at these problems, improvement measures were put forward such as improving laws and regulations about agent construction system, cultivating and developing capable agent units, and strengthening performance evaluation of agent units. It is seen that agent construction system is an inevitable tendency reforming project management system.
The Research of Historical Background that Architectural History Lacks in
Authors: Song Gui Jie , Chen Xing
Published: July 2014

Architectural history of China is all about the forms of mute objects and urban plans as well as architectural technology and spatial art. The role of men in the process of construction is neglected. The detail of the men working on the project should be made visible in the history. Only in this way, we can understand a whole architecture or a city plan [1]. The story of how to start a project and how to manage a project is a very important part of architectural history because a building or a city should not be allowed to construct without a reasonable demand and should not be constructed without management specially a large scale of project. Accordingly, management and historical background should be reflected in the history of a building or a city plan, rather than leaving them as anonymous elements behind the history. In this paper, some examples are taken to exemplify why the role of men is neglected from the state institute to the craftsmen themselves and the importance of the role in a construction. How to manage or determine a project is also studied to exemplify part of the reason why traditional architecture in China develops in this way [2].
The Research of Integrated Dynamic Analysis of Metro Project Objectives Based on PCA
Authors: Zhao Jin Xian , Li Long , Liu Min
Published: July 2014

This paper establish the index system of metro project which included four control targets of the engineering project management that is quality, cost, construction period, safety into integrated dynamic system. We realizes the PCA dimension of the 17indexes in the set and gets four principal components by using PCA of multivariate statistical methods. According to the feature vector of four main components, the main ingredients are classified and reorganized. By comparing the scores ranking of four redefined main components and evaluation scores ranking, we conduct integrated dynamic analysis of metro project objectives. Finally, the results of case study shows the conclusion is in line with the possible situations of the metro project management.
The Study on EPC Engineering Contract Dispute and Resolution Mechanism
Authors: Li Wei Fang
Published: July 2014

As EPC engineering generally have long construction period,technically complex and other characteristics, disputes in construction projects inevitably become a major problem troubled owners and contractors. This paper focuses on the causes of EPC engineering contract dispute and resolution mechanism. The countermeasures of how to build the DAB dispute resolution mechanism of the EPC contract are proposed,by analyzing the constraints in the implementation of the DAB dispute resolution mechanisms.
Unbalanced Quotation Improvement Strategy Research under the Bill of Quantities Valuation Mode
Authors: Liu Wan Lin , Zhang Ling , Qu Chun Li
Published: July 2014

Combining with China's current bidding methods that are commonly used in tendering process, the article introduces the concept, principle and characteristics of unbalanced bidding, and establishes unbalanced quotation improvement strategy model based on capital time-value theory and linear programming. This model can reduce the enterprise's bidding quotation scientifically and increase the successful bid probability without changing the corporate earnings. Meanwhile, the article combines with actual application cases, indicating that the model is practical and operable.
On Position and Function of On-Site Supervision
Authors: Tong Zhi Neng
Published: July 2014

Given the current supervisory work on site supervision and a clear understanding of the role of superficial, it is necessary to work in this role to be scientifically demonstrated, to obtain a unified understanding, to improve work quality.
Research on the Dynamic Compensation Mechanism that is Brought by Engineering Measurement to the Contract Status
Authors: Wu Song , Bai Juan
Published: July 2014

Based on engineering measurement ，the contract state change is classified into three types: variation, deviation on bill of quantities, discrepancy in BQ quantity. Based on this, analysis is made on the dynamic compensation mechanism that the bill of quantities can have to the contract state according to the change type of the contract state of the bill of quantities, finally the quantitative value adjusted by the contract price based on the change type of the three contract state based on the bill of quantities.
A Gene-Genetics-Based Study on the Inheritance Law of Traditional Architectural Culture
Authors: Xiong Ying , Peng Feng
Published: July 2014

With the rapid development of social economy, a new wave of environmental renewal and old city reconstruction will be stirred. conserving and inheriting traditional and its historical culture is not only an issue but also a challenge. This paper tries to extend the concept of menes to the conservation and inheritance of traditional architectural culture from the perspective of biological gene genetics and by means of analogy and deduction. It aims at conserving and inheriting the historical culture of architecture and preserving the historical architectural heritage so as to promote the sustainable and harmonious development of architectures, landscape and environment.