bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Affordable Housing Space Layout — Case Study of Ningbo，Zhejiang
Authors: Huang Yang Fei
Published: November 2013

Ningbo affordable housing space layout has three characteristics: The distribution is wide with individual high concentration at the city level; The location is mainly in urban-rural fringe at the administrative region level; The foundation facilities are generally imperfect at the community plot level. Then this document analyses the layout advantages and disadvantages. The advantages:part of the community supporting facilities is perfect;space usage of adjust measures to local conditions;combined with the construction of affordable housing in the new area development and construction;and construction of affordable housing is not isolated . The insufficient: remote location, construction Within the scope, part of the public service facility has location bias, far from the employment area of guaranteed residents, and surrounding environment needs to be improved.
The Initiative Research on the Method of Ecological Land Use Planning
Authors: Hu Xian
Published: November 2013

The ecological planning method of land use in the urban overall planning is discussed here. Based on the brief analysis of the common thoughts on ecology in today’s front planning ideas, this paper analyzes the ecological effects of clear space frame and scientific function mixture in the land use planning as well as the urban environmental contradictions which can be solved by the ecological planning method. In addition, a planning method of ecological land-use which is deep, detailed and practical in overall planning will be discussed.
Experimental Study of Steel Strips-Strengthened Masonry Panels
Authors: Chi Pei , Wang Bei Bei , Bo Hai Feng , Peng Yang , Dong Jun
Published: November 2013

Because of the seismic vulnerability of these masonry structures, many strengthened technologies for improving their its seismic performance of masonry panels have been improved in old days. In this paper, a rapid strengthening approach of masonry structures which is diagonal steel strips attached to the masonry panels is proposed. To investigate crack pattern, shear strength, lateral stiffness and ultimate displacement, four Specimens constructed at with 1:2 scale are designed. One specimen was not strengthened by steel strips, and the others strengthen by steel strips with different width and thickness. They are tested under combined constant vertical compression and cyclic lateral loading. The experimental results prove that reinforcement approach could a changed crack pattern. Also, it could significantly increase in the shear strength and lateral stiffness of masonry panels. The width of steel strips is more significant than the thickness of steel strips in strengthening shear strength and lateral stiffness of masonry wall.
A Research on Use of Colors in Chinese Cityscape
Authors: Dong Zheng Lei
Published: November 2013

The design of artistic colors should be one of the most important considerations in cityscape planning so as to make full use of all elements which can highlight the overall aesthetics of the cityscape when they are matched in perfection. The spirit of the city and the distinctive geographic features should also be attached great importance in the design of the cityscape to make it more personalized and characteristic. What is more, the use of light and materials should be take full consideration in the design for their direct impact on the artistic colors in cityscape design.
Urban Spatial Strategic Research and its Practice in China-A Case Study of the Central Plain Cities
Authors: Liu Yong Jin
Published: November 2013

This paper discusses the status and development of urban spatial strategic planning studies, and elaborates three dominant planning approaches of spatial strategic planning. Currently, Chinas urban spatial strategic planning does not adhere to details, but rather focus on the prospect of the city, the entire technology roadmap does not emphasize exhaustive, but the city's ability to solve practical problems. The article also combine studies on the Central Plain Cities to conclude that Chinas urban strategic spatial planning should focus on the development of several node cities, optimize the urban hierarchy and network system in region.
Construction WasteTreating Based on Urban Planning
Authors: Li Shuang Shuang , Liu Gang , Chen Lin
Published: November 2013

During the construction of large-scale infrastructure in China, the construction waste becomes a major environmental problem hampered the development of urban. In this study, the treating models of construction waste were analyzed. A case study was implemented in Xiaoting district in Yichang. It was proposed that the treatment can be started from urban planning, including controlling the source of construction waste on macro, designing transportation route of construction waste reasonably, and establishing regional system of joint control points, and constructing the governance model which used "building garbage's disposal" as the core of corridor of industrial chain economy. Finally, a practical kind of urban construction waste processing means and method was put forward which can provide scientific basis for construction of low carbon city.
Discussion on the Urban Color Corridor of Yichang
Authors: Li Yue , Yang Yu Pei , Jiang Wen Lin , Li Rui Qi , Liu Xiu Zheng
Published: November 2013

The landscape belts along the two banks of the river is Yichang’s portal, It is also a distinctive urban color corridor of Yichang. The paper starts with the basic principles of urban color, analyses the urban Color corridor of Yichang, reveals the development process of Yichang’s color corridor 、the relationship between the city’s image and the color corridor of Yichang, and puts forward some opinions and Suggestions on the shaping of Yichang’s urban color corridor.
An Empirical Research on the Energy Efficiency of Construction Industry and its Influencing Factors in Xi’an
Authors: Zhang Su Xian , Zheng Qin Yu
Published: November 2013

This paper collect 5yearss data to study the energy efficiency in Xian, use least squares to analyze the factors how to influence the energy efficiency. The result shows that: the cluster has the biggest influence on the energy efficiency. Technological advance and construction industrial scale can influence the energy efficiency to a certain degree. The energy price influence the energy efficiency to a small degree. To guarantee the Twelfth Five-Year Plans goal, we should encourage development on the energy conservation technology at first; Then , build a reasonable system of energy prices; At last ,enhance the construction industrial scale and concentration.
Distortional Buckling Control of Cold-Formed Lipped Channel Columns with Web Stiffener
Authors: Chen Ming , He Zi Qi , Liu Zhan Ke
Published: November 2013

For cold-formed lipped channel columns with web stiffener, the distortional buckling stress may be lower than the local buckling and overall buckling stress, and thus it may control the design. A countermeasure to prevent the distortional buckling of such sections form happening by setting batten plates between two lips of the section was analyzed using the finite element program of ANSYS. Varying length and one way axial force eccentricity were concerned to observe the effect of the batten plates to the buckling behavior, load carrying capacities of the section in different cases. All the results can be the reference for later experimental study.
Case Study of Bidding Strategic Decision Based on Cost-Balance
Authors: Cheng Min Tai
Published: November 2013

Government agencies and private sector clients typically use competitive bidding in order to award a contract to the lowest price qualified bidder. Bid price usually includes cost of construction and a markup, the scale of which is typically determined as a percentage of construction costs. Bidding strategy influences markup scale significantly and impacts contractor profit and the probability of winning the competitive contract. Further, this study is intend to compare Carr expected profit and cost-balance oriented screening under bid-to-win probability, considering to bid for new work and implementations in progress in a series of bidding states for bidding strategic decision to find out which one is the best choice in competitive bidding states for the contractor.
Evaluation on Core Competitiveness of Construction Enterprise Based on Multi-Level Gray Evaluation Method
Authors: Qiu Guo Fang , Gao Hua Feng
Published: November 2013

The core competitive index system is proposed from construction enterprises characteristics. Due to fuzzy characteristics of core competitive index, a multi-level gray evaluation model is established for construction enterprises. And the effectiveness of this model is illustrated by an example.
Application of Risk Significance Index Score to Construction Projects in Malaysia
Authors: Goh Boon Hoe , Kang Byung Gyoo , Liew Chung Lian , Choong Wee Kang , Yeong Tuck Wai
Published: November 2013

Risk management is one of the most important areas in project management particularly in the construction industry. However it is not possible to analyze all of the potential risks as it will require too much time and effort. Therefore in order to identify and analyze the significant risks, the risks should be categorized and ranked. This research applied the concept of risk significance index score to construction projects in Malaysia. A comprehensive list of 40-potential risks has been developed through literature review and an interview survey. A questionnaire survey was conducted to produce project risk significance index score for the risks. The ranks of the risks have been identified and solutions for the significant risks have been produced through interviews. This research proves the practical use of risk significance index score for construction projects in Malaysia.
Investigation into the Current Practice of Cost Estimating and the Introduction of a Standard Price Book in the Malaysia Construction Industry
Authors: Kang Byung Gyoo , Eng Vin Shern , Goh Boon Hoe , Choong Wee Kang , Yeong Tuck Wai
Published: November 2013

Cost estimating is one of the most important areas in construction project management.Three are various ways to do cost estimating with different efficiencies and possibly with differentaccuracies. In addition it is a complicated process including various activities. Standardized pricebooks will help improve the process and accuracy of cost estimating. However there is no publishedprice book in the Malaysia construction industry. This research has investigated and identified thecurrent practice of estimating in the Malaysia construction industry together with the possibilities ofintroducing a price book to the industry. Primary methods of estimating, efficiency of the currentmethods, significance of activities related to estimating, factors affecting the accuracy of estimatingare investigated through a survey. Further the obstacles in introducing a price book have beenidentified. The survey participants agree that the government should initiate the introduction of a pricebook in the Malaysia construction industry. The outcomes of this research can be also used to improvethe competitive advantages of quantity surveyors, consulting engineers/architects and contractors inrespect to cost estimating for construction projects in Malaysia.
Research of Risk Management About Construction Enterprises
Authors: Zhang Lu
Published: November 2013

This paper studied the risk management of enterprises of construction, explore the current situation of risk management which is not sound about the mechanism of risk management within the enterprise. It is pointed that for the enterprises of construction, they exist some internal and external risks, such as legal risk in contract and the risk on the owner of construction. The results indicate reasonably that the total five thought and countermeasure on the risk of management within improving the system of risk management.
Structural Stress Based Fatigue Analysis Method for Plane Steel Gate
Authors: Guo Hang Gang , Zhang Jin , Zhang Yang , Zhang Wei
Published: November 2013

Though fatigue failure is often happened in steel gate, fatigue design has not yet been included in design or evaluation standards in China. In this paper, analytical theory based structural stress method and structural stress based fatigue analysis method are combined and employed for fatigue life evaluation of plane steel gate. The variation of water head is taken into consideration for the conditions of gate running and resting. In order to give a valid evaluation, the weld located among all components is considered as rigid connection when calculating structural stress. Master S-N curve in ASME code is used for life evaluation. Example shows the method can be used for fatigue analysis of plane steel gate, and can be used to identify fatigue failure zone.
Based on the AHP Method Analysis the Factors about the Quality of Construction Project
Authors: Li Peng
Published: November 2013

Firstly introduce the 4M1Efactors. Then apply AHP for a actual construction to weight which factor is the most important one. Finally provide direction for construction quality management in the future.
Assessing Low-Cost Housing Demand in Melaka: PLS-SEM Approach
Authors: Zainun Noor Yasmin , Roslan Nadzirah , Memon Aftab Hameed
Published: November 2013

Housing is one of the basic needs of human. Population in Malaysia is increasing and expected to reach up to 35 million in year 2020. This phenomenon creates high demand for housing. To tackle the squatter problems, the government introduces low-cost housing. Low cost house is known as the government house, where the price is cheaper but still comfortable. Although there are many of low-cost housing projects have been completed to cope with the need of the citizen especially for low-income group. However, census report reveled that these is huge demand of low-cost housing. This demand might be because of various factors which are very essential to identify in order to meet the required demand of low cost houses. Hence, this study is carried out to assesse the demand of low cost housing in Melaka, determine the significant factors affecting demand of low-cost housing, and establish PLS-SEM model for assessing factors affecting low-cost housing demand. In this study, data are collected by distributing questionnaire in Melaka state. The collected data from survey was analyzed using statistical software SPSS and presented in graphs and chart. Further, factors affecting low cost housing demand in Melaka were modeled with the SmartPLS v2.0. The model shows the relationship between low cost housing demand and its indicators. The finding of the study showed that most significant indicators affecting the demand of low-cost housing in Melaka are the economic factors which include housing stock, inflation rate and Gross Domestic Products (GDP). The Goodness of Fit showed that the model has substantial explaining power for the assessing factors affecting low cost housing demand in Melaka which the values is 0.481. This means that the economic factor has a great influence on the low-cost housing demand in Melaka.
Accident Compensation of Occupational Fatalities in the Construction Industry
Authors: Liao Chia Wen , Chiang Tsung Lung
Published: November 2013

There is a higher rate of occupational accidents in the construction industry than most other industries on average. Construction accidents may result in numerous damages and losses. Workers compensation is an important source for evaluating costs associated with construction accidents. In this article, the applicable laws or regulations for occupational accident in Taiwan are examined at first. Accident reports during the period 1999 to 2011 are extracted from case reports of the Northern Region Inspection Office of the Council of Labor Affairs of Taiwan. The compensation in 574 cases of occupational accidents in the Construction Industry is then analyzed. The findings identified in this article provide a direction for more effective compensation strategies and injury prevention programs.
Higher Education Program Development for Structural Building Information Modeling(S-BIM)
Authors: Cho Young Sang , Hong Sung Chul , Lee Je Hyuk , Jang Hyun Suk
Published: November 2013

AEC (Architecture, Engineering, and Construction) industries are in the process of paradigm shift on the performance of practice, particularly in the fields of architects, consulting engineers such as structural engineers for structural BIM, civil engineers, MEP engineers, and contractors led by Building Information Modeling (BIM). Overall adoption of BIM in the AEC industries of North America has increased from 17% in 2007 to 71% in 2012 which is over 400% growth over last 5 years. This study analyzes and examines the BIM adoption status of AEC industry in the world including the North America and in the R.O. Korea through the literature survey. This study also examines how academic community is preparing for the drastic cultural change of work process in the construction industry due to BIM adoption in the foreign and domestic AEC industry. This paper presents the case study of BIM education including Capstone Design in the R.O. Korea. This study is to propose that academia needs to establish the appropriate educational curriculum and implementation to enhance, improve and research the state of art BIM technology together with AEC industry.
The Research of Key Factors Affecting the Implementation of Lean Construction
Authors: Li Shu Quan , Hu Shao Pei , Sun De Hui , Li Jing
Published: November 2013

The application of the ideas and methods of lean construction is still in its infancy in China's construction industry, there are still many factors that restrict the implementation of lean construction, and how to find the key influencing factors is worthy study. We summarized the 28 influencing factors of Implementation of lean construction through project management expert interviews and field research in the construction site, and conducted a survey of 300 construction projects, distributed 710 questionnaires. After analysis of the survey questionnaires by using rough set theory and stepwise discriminate analysis finalized the 14 key factors affecting the implementation of lean construction and construction project performance.
Several Problems Existing in Modern Decoration Design Viewed from Engineering Management
Authors: Zhu Wei Dong , Zhang Ying Ying , Chen Yi Xin
Published: November 2013

From viewpoint of engineering manager, four typical problems existing in current decoration design are analyzed and their causes are pointed out. Meanwhile, bad consequences in five aspects are further described from the human-orientated requirements, such as spirit harm, economic loss, not guaranteed human health, hiding quality of nation from sound development and difficult guaranteed safety. Strategic opinions are raised to the designers and the owners as the guidance and reference for development of decoration design.
The Building Research of Dairy Products Logistics Service Quality Evaluation Index System
Authors: Ji Shou Wen , Li Ya Dan
Published: November 2013

Dairy products logistics service quality directly affect the quality of dairy products, this article first from management level, advanced technical equipment, warehousing and distribution quality, cost economy four aspects put forward the preliminary evaluation of dairy products logistics service quality, then through questionnaire survey to judge the proposed initial indicators of evaluation, through the analysis of the membership degree and the important degree of initial index screening optimization, get a more scientific and reasonable evaluation index system, lay a solid foundation for the objective evaluation of the dairy products logistics service quality.
Study on Connotation and Enhancing Approach of College Students’ Employment Competitiveness
Authors: Yao Ying , Meng Xing , Yu Yan Ru
Published: November 2013

Now, college graduates’ employment situation is serious increasingly, and it has become the focus of society. This paper first analyzes the connotation of college students’ employment competitiveness and the necessity of enhancing college students’ employment competitiveness. Finally, it summarizes several approaches to enhance college students’ employment competitiveness.
Research on Algorithms of Critical Path Searching and Time Optimization in Construction Projects
Authors: Yuan Hui Lin , Sun Fu Quan , Wang Ding Wei
Published: November 2013

Because other consequential damages brought about by the construction delay can not be estimated, so the guarantee period or even ahead of schedule becomes particularly important. The critical path usually determines the progress of the construction. However, because of its own deficiencies, the traditional critical path algorithm cannot accurately describe the overlap between activity and interaction. So, in the paper, matrix method for critical path (CPMM) is designed for CP, and its rules and calculating process are described in detail. Through experiments, the effectiveness of CPMM is proved.
Numerical Analysis of Wind Load for Multi-Span Double-Pitch Light Steel Roofs
Authors: Song Xin Lei , Huang Cheng Wei , Zhen Jian , Gao Qiong Xian
Published: November 2013

This paper uses numerical simulation to simulate wind field for closed two-span double-pitch light steel roof under different pitches. Simple computing methods are given for local shape coefficient of wind load through comparing and analyzing the results of numerical simulation and standard values, which can provide some reference for the design.
A Novel Packet Channel Multiplexing Control Algorithms of AOS
Authors: Bi Ming Xue
Published: November 2013

The tradition packet channel multiplexing control algorithm of Advanced Orbiting Systems has the obvious disadvantages such as high time delay, high packet loss probability and low system throughput. Those depress the capability of the space communications badly. Based on the packet parameters, a new packet channel multiplexing control algorithm is proposed to optimize the tradition fixed multiplexing time. Under the prerequisite to ensure the maximal multiplexing efficiency, the processing time of packet channel multiplexing is limited, the packet loss probability is depressed, and the multiplexing throughput is advanced effectively.
Intelligent Sensor Networks Based Computer Lab Management System
Authors: Zang Hua Dong
Published: November 2013

Current emphasis on practical teaching, students creative thinking higher vocational schools teaching philosophy, the traditional manual management mode of the computer training room shows weak features, mainly for equipment maintenance cycle length and the contradiction between the teaching needs. From teaching management, equipment maintenance, environmental management, safety management, explore computer-based training room sensor network management model.
Analysis of Structural Integrity Using an ARTMAP-Fuzzy Artificial Neural Network
Authors: dos Santos e Souza Adriano , Chavarette Fábio Roberto , Parra dos Anjos Lima Fernando , Lúcia Martins Lopes Mara , Silva Frutuoso de Souza Simone
Published: November 2013

This paper presents the application of artificial neural networks in the analysis of the structural integrity of a building. The main objective is to apply an artificial neural network based on adaptive resonance theory, called ARTMAP-Fuzzy neural network and apply it to the identification and characterization of structural failure. This methodology can help professionals in the inspection of structures, to identify and characterize flaws in order to conduct preventative maintenance to ensure the integrity of the structure and decision-making. In order to validate the methodology was modeled a building of two walk, and from this model were simulated various situations (base-line condition and improper conditions), resulting in a database of signs, which were used as input data for ARTMAP-Fuzzy network. The results show efficiency, robustness and accuracy.
A Study on Automatic Reinforcement Placement System of Spread Footing Based on S-BIM
Authors: Cho Young Sang , Hong Sung Chul , Jang Hyun Suk , Kang Min O
Published: November 2013

The purpose of this study is to enhance productivity and economic value with precise object information generation and reinforcement quantity take-off by developing the Automation Reinforcement Placement System of Foundation (ARPF). This study was conducted by selecting the most basic form, spread footing, and no force was applied on the foundation other than axial force. For the development of ARPF, variables that should be input into the typical programs directly by users were minimized through developing the reinforcement placement algorithm by using visual C# based on the reinforced concrete structure design standard. The process of reinforcement detail placement formation was performed in the Tekla Structure (TS) that has outstanding accessibility and usability of API. Objects made by applying ARPF enable information confirmation and modification, as typical ones. Through this process using ARPF, rapid and precise reinforcement quantity take-off and footing bar placement are possible. If modeling is performed on the Tekla Structures by using ARPF, a detailed 3D reinforcement placing drawing, not 2D, can be created. It is expected that this method may take a smaller amount of time and effort than the typical drawing generation method that users had to generate objects or input information themselves.
Group Analysis Method of 3D Braided Composites Elastic Properties
Authors: Ma Wen Suo , Yin Dong Dong
Published: November 2013

The matrix representation of space point group is used in transferring the elastic matrix of the braided yarn based on the symmetries of braided composites representative volume element (RVE) meso-geometrical structure. The off-axis elastic matrixes of the whole braided yarns of the RVE are deduced. With a use of meso-mechanical model based on the mixture rule, the yarn segments off-axis elastic matrixes in the RVE and matrixs one are summed with weight; Equivalent elastic matrix of 3D braided composites was deduced. Equivalent engineering elastic constants are achieved in the end. The model can be applied in 2D braided composites mechanical analysis if its geometry is satisfied to the symmetries corresponding to plain point group.
CO2 Fixation Using a Composite Steel Timber Structure
Authors: Fujita Masanori , Kubota Micha , Okoshi Yuki , Iwata Mamoru
Published: November 2013

One approach to promote forest growth is the pruning and thinning of trees. In the field of building structure, it is necessary to use thinned woods as timber positively. However, timber is too weak to apply to the large-scale buildings. Research and development of a building system to use timber are demanded. Authors propose composite steel-timber structure aiming to spread wood to building construction field considering the global environment. First, distribution volumes of planted forest of each age forest class in Japan and its CO2 fixation are shown, investigating forest resources. Finally, the specific example of a composite steel-timber structure is shown and CO2 fixation at building structure model using a composite steel-timber structure is estimated.
Seismic Resistant Capability for Different Types of Brick-Wall Buildings in Taipei Basin
Authors: Chan Tian Chyuan
Published: November 2013

The buildings wall systems in Di-Hwa Street of Taipei, is quite different with the other historic area houses. In which the wall of building are made by different materials, such as earthen brick wall, stone brick wall, clay kiln brick wall, and their combination with un-regular types. The practicality of the proposed methodology is demonstrated through the Etabs software package analyzing the equivalent diagonal bracing models of each wall systems and evaluating the seismic resistant capacity of the brick wall structure. According to the analysis results, the seismic response control in displacement was observed. The seismic resistant capability of all of the brick wall structure, which were not enough to satisfied the design specification requirement according to the Ministry of Interior. also further increase the implementation of the improve devices on the displacement control of buildings is necessary.
Experiment and Finite Element Analysis of Partially Prestressed with Non-Bonded Fiber Reinforcement Polymer Tendon under Four Points
Authors: Yi Ya Min , Cheng Dong Hui
Published: November 2013

Carbon fiber reinforcement polymer could be used to replace steel tendon to bear loads together with concrete to solve the problem of steel tendon corrosion in concrete members. To study mechanical behavior of this kind of member, four concrete beams of partially prestressed with non-bonded carbon fiber reinforcement tendon were fabricated. In these beams, the reinforcement was taken as non prestressed tendon and carbon fiber reinforcement polymer tendon was taken as non-bonded prestressed tendon. Four points bending experiment were completed. Then the mechanical behavior of these beams has been studied through finite element analysis. The results show that a good agreement between experimental and finite element analysis results.
Research on the Seismic of a Large Span Roof
Authors: Gao Hong Wei , Yao Yong , Chu Yun Peng , Chen Dai Guo
Published: November 2013

By calculating a large span roof structures, get the intrinsic mode and real-time response of the structural under earthquake. The results showed that, the vertical acceleration response of structure is smaller than the horizontal acceleration response under EL-Centro wave and Tangshan wave. The vertical acceleration response is greater than the horizontal acceleration response under Lanzhou wave. The vertical displacement response of structure is greater than the horizontal displacement response under earthquake. Roof Destructed before the steel skeleton damage.
Finite Element Analysis on Seismic Performance of Beam-Column Joint of Concrete Filled Steel Tube Structure
Authors: Wang Ying , Li Miao , Fan He , Xu Jin Hua
Published: November 2013

Rational finite element models established by ABAQUS to analysis the mechanical properties of square steel tubular beam-column joints under low cyclic loading. The two beam-column joints are connected with bolts, one is with welding extended steel sheets at the beam root and the other has no welding extended steel sheets. The calculation and analysis results show that the new joint style using concrete filled steel tube structure both in beams and columns has advantage on the seismic performance. The load-displacement hysteresis curve of the beam end is plump without significant pinching and the joint specimens showed good ductility. The comparative analysis reveals that the joint with welding extended steel sheets at the beam root is more superior in the seismic performance respected to the joint without welding extended steel sheets.
Finite Element Structural Analysis of Lock Chamber Based on Uneven Covering Layer Foundation
Authors: Xiang Jing Wen , Wang Cong Feng , Zhu Xiong , Huang Xiao Chun , Liu Yun Hui , Zhou Jia Fei
Published: November 2013

In order to explore the influence law of the uneven covering layer foundation on lock chamber structure, used the large-scale finite element software called ANSYS, chosen the first hub lock chamber on Guxue Hydroelectric Power Station which was under construction as research object, constructed a lock chamber model which had thickness variations of covering layer along the dam axis direction, calculated the results of displacement and stress distribution on lock chamber, the analysis showed that; the uneven covering layer only has impact on the displacement along thickness variation and vertical direction of the lock chamber, the affecting factor of the stress distribution on lock chamber is the size of the corresponding covering layer gap under the floor; the lock chamber deformation amount meets the operational requirements, the reinforcement on the floor of number (3) lock chamber should be strengthened, to meet structural stability requirements, it only need to have the minimum reinforcement rate reinforcement for the other two lock chamber floor and all the gate piers.
Behavior of Selected Materials to Create Sliding Joint in the Foundation Structure
Authors: Smirakova Martina
Published: November 2013

Some foundation structures can be loaded with horizontal stress, for example pre-stressed foundation structures or structures on undermining areas. Then it is necessary to solute their effects, because they can have very significant effect on the building. When it is spoken about the foundation structures which are loaded with horizontal stress then it is spoken about two possibilities of this loading. In the first case there are horizontal deformations in the structure and in the second case these deformations can arise in the subsoil. In both of them it can be used the method with using sliding joint to increase of shear stress between foundation structure and subsoil. Asphalt belt is often used to create this sliding joint. At the faculty of Civil Engineering some materials are tested to better knowledge of asphalt belts properties and to more precise design and calculation of sliding joint.
Numerical Simulation of Steel Grid Structure under High Temperature
Authors: Cui Jing , Yin Ling Feng , Guo Xiao Ming , Tang Gan , Jin Tian Jiao
Published: November 2013

Based on the fire tests of WILLIAMS double-poles structure, considering the dual nonlinear interaction of material and geometric, established one complete finite element model of grid structure. For the performance that the physical and mechanics properties of steel will degrade while the temperature arising, simulate the test models with ANSYS, get a better numerical results, proof the numerical method is feasible.
Super High Integral Lifting Force Supporting System Design of Yuzhen Palace Gate
Authors: Fu Su Juan , Bian Zhi Hui , Li Xu Guang , Hao Yu Hang
Published: November 2013

To Wudang Yuzhen palace gate lifting project as an example, it introduces a new type of lifting counterforce supporting system design. This lifting counterforce supporting system is designed in this paper in three aspects: the selection of lifting counterforce supporting system, steel pad, section steel reinforced concrete structure, and it puts forward the relevant suggestions: It is better to use H-steel reinforced concrete support system in building large high jacking works; In the design process of the steel cross section, it is need to focus on the bending strength and stability factors in the case of considering the eccentric force; In the design process of steel reinforced concrete walls, it is need to focus on resistance to overturning stability factor.
Review of Timber Structure Reinforcement Research for the Huizhou Ancient Architecture
Authors: Xiong Xue Yu , Su Zhao Yang
Published: November 2013

Chinese ancient architectures are valuable culture heritages for human beings, and most of these ancient architectures are timber structures.[ Since most of the survived ancient architectures were built long time ago and suffered all kinds of nature disasters, their structures were damaged severely, and needed to be effectively reinforced and repaired. As the key element of Huizhou culture, Hui-style architecture is the representative of Chinese ancient architectures. Based on Hui-style architectures current damage situations, this paper studies the strengthen methods and current study situations of the timber structure of the ancient architectures from beam, column, mortise and tenon joint, corbel bracket, retaining structure and other aspects. It also studies the shortage of the traditional reinforcement methods, and discusses the usage of the new reinforcement material CFRP in the timber structure of the ancient architecture. In the end, the writer believes that finding sufficient methods to ensure the reinforcement effect, overcoming the shortage of the traditional reinforcement method, as well as ensuring the original appearance of the components when carry out the reinforcement, is the direction of the reinforcement study of Hui-style architecture in the future.
Finite Element Analysis of Prestressed Concrete-Filled Square Steel Tube Truss
Authors: Zhou Chun Li , Yang Ru , Tang Xue Ying
Published: November 2013

Prestressed concrete-filled square steel tube truss is the kind of truss whose upper chords and lower chords are respectively concrete-filled square steel tube and prestressed square steel tube. Four truss models as square steel tube truss, concrete-filled square steel tube truss, prestressed square steel tube truss and prestressed concrete-filled square steel tube truss were analysed by ANSYS, each of those truss models’ span has three variations. The result shows that the bar sections’ strength of square steel tube truss and concrete-filled square steel tube truss are far from reaching their design strength when the allowable values of deflection has reachedl//400. Unlike the cases described above, when the bar sections’ strength of prestressed square steel tube truss and prestressed concrete-filled square steel tube truss has reached their design strength, their load-bearing capacity is 1 or 1.5 times higher than those cases above and their deflection has not reached the allowable values.
Finite Element Analysis on Creep and Shrinkage of Reinforced Concrete
Authors: Zhang Yun Tao
Published: November 2013

The finite element software ANSYS/CivilFEM was applied to analyses the influence of steel bar restraint on creep and shrinkage of reinforced concrete. The analysis results are in good agreement with the experiment results. When the reinforcement ratio is low, the steel bar exerts less influence on creep and shrinkage, and the influence of steel bar can be neglected in engineering application. However, the reinforcement can effectively reduce creep and shrinkage development when the reinforcement ratio is high.
Sliding Mode Control on Vibration System with Time-Delay
Authors: Pan Ying
Published: November 2013

Sliding mode control is a good way to design controller with self-adaptive and robustness, It can be used to discuss the vibration problems of mechanism and structure with time-delay. By using constant-speed approach, the controller is designed law and the stability criterion presented without delay information, which make the stability analysis of the vibration structure with time-delay straightforward.
Solving Robust Reliability Index Based on the Mutative Scale Chaos Optimization Algorithm
Authors: Zhang Feng , He Xin Dang , Nan Hua , Ren Hao
Published: November 2013

A novel method based on the mutative scale chaos optimization algorithm is proposed to solve the robust reliability index of non-probabilistic reliability model. Compared with the basic chaos optimization method, this novel method can minimize searching area of optimization variable and change the adjustable parameters of next search stage for improving the optimization performance. The proposed optimization algorithm is more efficient and has smaller computational complexity in solving robust reliability index. The feasibility and efficiency of the proposed method are demonstrated by two examples.
The Numerical Simulation and Analysis of Wind Pressure Distribution on Sloping Roof of Storey Factory
Authors: Zhou Ting Wei , Huang Cheng Wei , Zheng Jian
Published: November 2013

As wind-induced damage always occurs at the roof of storey factory, the roof pressure of storey factory under different wind directions was analyzed based on the Realizable k-ε turbulence model. Hexahedral element based numerical modeling was chosen, and the pressure-linked equations were solved with fast-convergence SIMPLEC algorithm. The results showed the wind pressure at the leading edge from the windward side is far greater than other regions of the roof, indicating this area should be the main issue in wind-resistant design.
Research on Out-Plane Bending Stiffness of Multi-Ribbed Slab Structure
Authors: Yuan Hai Jun , Cao Lang , Deng Liang Hao
Published: November 2013

Floor loads of the large-bay floor can cause larger bending moment at the floor edges. So the shear-wall need to bear greater out-plane bending moment and this problem can not be ignored. multi-ribbed slab structure is a new wall. The paper Calculated out-plane bending-stiffness of multi-ribbed slab by using the equivalent-stiffness method. The results show that: the equivalent stiffness method is simple and ribbs should not be too large, width-height ratio control between 1 and 3, wall length is about 5.4m.
Proportion of High-Strength Steel Bars in Reinforced Concrete Ductile Piers
Authors: Xiao Xiao , Li Zhao Hui , Liu Sheng Bo , Wu Qiong Fang
Published: November 2013

This paper mainly focuses on the affect factors of ductility of reinforced concrete pier with the high-strength longitudinal reinforcement and stirrups. By finite element software ANSYS, changed the amount of longitudinal reinforcement and high-strength stirrups in the piers, the ductility performance of concrete piers was studied. The results show that under certain conditions, the ductility coefficient of concrete piers with high-strength reinforcement can increase with the amount of stirrups. In addition, high-strength longitudinal reinforcement can improve the ductility performance of the concrete piers, but it should be controlled in a reasonable range. If there are too much high-strength longitudinal reinforcement in the concrete piers, the ductility performance will be lower, and structural seismic performance will also be affected.
Carrying Capacity of Round Timber Bolted Joints with Steel Plates under Cyclic Loading
Authors: Lokaj Antonin , Klajmonová Kristýna
Published: November 2013

Aim of this article is in presentation of results of dynamic tests of round timber bolted connections with slotted in steel plates. Multicyclic dynamic (fatigue) tests in tension were made with round timber joints on pulsator INSTRON in laboratory of ITAM CAS Prague. Results of laboratory tests have been statistically evaluated and completed with graphical records of deformation response to loading.
Study on Hydrated Heat Temperature Field of Thick Raft Concrete Foundation Using FEM Analysis
Authors: Xue Zhen Xiao , Ju Yu Wen
Published: November 2013

Based on a wind turbine thick concrete raft foundation for the engineering background, through the adiabatic temperature rise test, the datum of the hydration heat of concrete are obtained; and concrete solidification temperature field numerical simulation and analysis are conducted by finite element analysis software ANSYS; by means of the temperature sensor measurement systems, the foundation concrete pouring process variation of the temperature field is obtained by real-time monitoring. Studies show that: the temperature rise inside the concrete points has the same trend, but the peak and the peak of the age are different. The maximum temperature inside the concrete is mostly shown in the initial 3-5d of concreting; temperature gradient along the thickness direction of the foundation is obvious; massive concrete is significantly affected by the outside temperature.
Long-Term Performance of Steel-Concrete Composite Box Girder
Authors: Liu Xiao Jie , Jiang Ya Peng
Published: November 2013

In this paper, an analytical example was given to show the time-varying regularity of stress and deformation of composite box girder. The distribution of deflection along the span at initial time and ultimate time was calculated. It was found that the mid-span deflection increased rapidly during the initial 50 days, and became stable after 300 days. The stress of steel increased while the stress of concrete decreased and both of the variation rates gradually slowed down with time. The regularity of stress of steel and concrete with time are similar to that of the mid-span deflection.
Research on the Technology of GFRP Bars and PC Strand Combined Supporting Piles by Experiment
Authors: Li Xiu Hua , Cong Wei Min , Yue Chen Xi , Liu Jian Xiong
Published: November 2013

GFRP bars and PC strand combination pile that is configuration GFRP bars in the compression zone of the general pile, in the tension zone configuration PC strand. Pile construction is completed and before the excavation, applied partially prestressed for the tension zone of PC strand, so that GFRP bars in tension, with the excavation pit, GFRP bars tendons pulling force gradually reduced; When the excavation to a certain depth, the second prestressed steel strand so until the excavation is completed. In summary, the technology features is GFRP bars, concrete piles, PC strand all in tension. This makes full use of the concrete compression performance, GFRP bars and PC strand tensile good performance characteristics.
Influencing Factor Analysis on Non-Mining Fracturing of Shaft Lining in Thick Topsoil Layer
Authors: Qin Zhe , Jia Hai Bin , Kong Hai Long
Published: November 2013

Non-mining fracturing of shaft lining is a special mine geological disaster in Huadong thick alluvium Mining Districts, which is mainly induced by the additional stress result from compressive deformation of the bottom aquifer water loss. On the basis of summarizing the geological conditions and failure characteristics of non-mining fracturing of shaft lining, this paper analyses the size and variation with different influencing factors of additional stress in outer wall through establishing 3-D numerical modeling. The relationship between stress condition of non-mining fracturing of shaft lining and head loss of bottom water-bearing stratum is determined using the classic elastic solution to thick-walled cylinder according to the proceeding modeling results; and the head loss of bottom water-bearing stratum corresponding to the failure limit state of pitshaft damage is obtained.
The Temporal Dynamics of Cynodon Dactylon Soil - Root System in Soil Conservation and Slope Reinforcement
Authors: Zhang Miao , Chen Fang Qing , Zhang Jin Xia
Published: November 2013

Cynodon dactylon has become a dominant riparian species in the reservoir region after the Three Gorges project was finished. In order to determine the effect of the species in soil conservation and slope reinforcement and the variation over time, the soil erosion resistance and shear strength of plants soil-root systems were tested during different seasons in a year through control experiment. Results showed that C. dactylon roots enhanced significantly soil conservation and slope reinforcement. The tensile strength of C. dactylon roots reached from 65.34 to 91.22Kpa/mm2 after three to twelve month growth, so did the soil erosion resistance coefficient from 0.34 to 0.86, shear strength from 20.82 to 25.98Kpa increasing by 39.62%, 154.90% and 24.74% respectively. We conclude that the temporal dynamics of C. dactylon roots influenced the performance of soil-root system in soil conservation and slope reinforcement.
Horizontal Vibration of Pile Considering Pile-Soil Separation
Authors: Han Hong Xia , Cui Wu Wen , Li Yan Yan
Published: November 2013

Taken into account the effect of pile partially separated from soils, the dynamic stiffness and damping of pile in horizontal vibration is caculated by using the theory of computation about the mixed boundary value problem of circular holes radiation stress at an infinite plane and the theory of elastic waves, and the Fourier expansion method. The calculated results based on this paper are compared with the calculated results of the other literature. It is showed that the calculated results considering the influence of pile-soil separation are less than that of the other literature, which the bonding of the pile to the soil was assumed, and are in good agreement with experiments.