Hunan construction engineering group corporation

Changsha, China

Hunan construction engineering group corporation

Changsha, China

Time filter

Source Type

Liang J.-G.,Changsha University of Science and Technology | Cheng S.-H.,Hunan Construction Engineering Group Corporation | Peng M.-F.,Hunan Agricultural University
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2010

In order to avoid cracking in autoclaved fly-ash brick masonry walls due to drying shrinkage, the drying shrinkage of autoclaved fly-ash brick with different relative moisture contents in different relative humidities were tested using rapid method and comparatively slow method. The test results show that the drying shrinkage of autoclaved fly ash brick using rapid method is 48% of that using slow method, and the drying shrinkage of autoclaved fly ash bricks in service stage increases with the increase of relative moisture content and decreases with the increase of relative humidity. The moisture content factor, the relative humidity factor as well as the age factor can be obtained by regression analysis of the test results. The predicting formula of the drying shrinkage of autoclaved fly-ash brick in service stage is obtained.


Yi W.,Hunan University | Shen H.,Hunan University | Cheng C.,Hunan Construction Engineering Group Corporation
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2015

In order to quantify seismic risk, risk indicators were selected first, hazard analysis, vulnerability analysis and loss analysis were carried out using the CAPRA (central American probability risk assessment) platform with each sub-module, finally the values of risk indicators such as physical loss and human loss were obtained. The risk indicators were standardized, and then regional holistic risk index RT was taken as the weighted sum of the importance of risk indicators based on multi-criteria evaluation method. The greater the regional holistic risk index, the greater the regional seismic risk was. Physical loss, human loss and social impact were selected as risk indicators and taking Sichuan Province (China) as an example, the seismic risk values of each city were gained through this method. The results show that places like Meishan, Ziyang, Guangyuan, Chengdu and Leshan pose a higher seismic risk, but seismic risk of Aba, Ganzi, Liangshan, Dazhou and Luzhou is quite smaller, which can give some references for Sichuan's house siting, risk mitigation and urban risk management. ©, 2015, Central South University of Technology. All right reserved.


Zhou H.,Hunan University | Zhou H.,Hunan Construction Engineering Group Corporation | He Y.,Hunan University | Guo J.,Hunan University | Li Y.,Hunan University
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2012

Composite columns combine the merits of steel-reinforced concrete and steel tubular concrete. To study the seismic performance of composite joints with steel-reinforced concrete-filled steel tubular columns and steel-reinforced concrete beams, four full-size cruciform specimens categorized in two groups were tested under cyclic loading at the send of the beams. Two strong joints and two weak joints were designed according to the relative strength of composite columns and beams. The test results show that this new type of composite joints performs excellently in seismic actions. The hysteretic curves of strong joints are plump, while in contrast, such curves are in reversed S shape for the weak joints. The strength and initial rigidity of weak joints are better than those of strong joints, but the ductility and energy dissipation are worse at the end of the tests. It is thus concluded that the strong joints are more practically applicable. The inner steel-reinforcement can serve as a second line of defense to earthquakes.


Chen W.,Changsha University of Science and Technology | Chen W.,Hunan Construction Engineering Group Corporation | Yang W.,Changsha University of Science and Technology | Sun C.,Hunan Construction Engineering Group Corporation
Applied Mechanics and Materials | Year: 2012

Probability analysis of longitudinal horizontal nonlinear stochastic seismic response of reinforced concrete simply-supported beam bridge and continuous beam bridge are presented in this paper. Based on the degradative tri-linear resilience model, nonlinear equations of the structure are replaced by equivalent linear equations. The stochastic equivalent linear method and the decreasing order method of normal are adopted to calculate equivalent linear parameters, and then the stochastic seismic response of the structure can be analyzed by the linear of freedom system. Based on theoretical analysis and research, the analysis method of nonlinear stochastic seismic response of reinforced concrete bridge is put forward. © (2012) Trans Tech Publications, Switzerland.


Chen W.,Changsha University of Science and Technology | Chen W.,Hunan Construction Engineering Group Corporation | Yang W.,Changsha University of Science and Technology | Wang T.,Hunan Construction Engineering Group Corporation
Applied Mechanics and Materials | Year: 2012

With cyclic quasi-static tests, the strength and deformation behaviors of five shale ceramsite concrete shear walls specimens were studied, the effect of height-width ratios and reinforcement ratios of shear walls were considered. The failure feature, strength, deformation behaviors of shale ceramsite concrete shear walls were analyzed after the test. Analytical result indicates that, the shale ceramsite concrete shear walls have good strength and deformation behavior and it can meet the requirements of the structure seismic. The calculation formula of resistance moment and the relationship between curvature ductility ratio and displacement ductility ratio were established for shale ceramsite concrete shear walls and the calculate results were compared with test results. © (2012) Trans Tech Publications, Switzerland.


Chen W.,Changsha University of Science and Technology | Chen W.,Hunan Construction Engineering Group Corporation | Yang W.,Changsha University of Science and Technology | Li Y.,Changsha University of Science and Technology
Applied Mechanics and Materials | Year: 2012

Based on the properties of lightweight aggregate concrete, the yield curvature and the ultimate curvature are calculated by numerical method, and the relationship between curvature ductility ratio and displacement ductility ratios is established for lightweight aggregate concrete shear wall. It is shown that the calculating results agree well with experimental results. The major influencing factors for ductility of lightweight aggregate concrete shear wall include with or without constrain edge conponent, the characteristic value of stirrup of constrain edge conponent, the axial compression ratio and the height-width ratio and so on. © (2012) Trans Tech Publications, Switzerland.


Yang W.,Changsha University of Science and Technology | Chen W.,Changsha University of Science and Technology | Chen W.,Hunan Construction Engineering Group Corporation | Shi J.,Hunan Construction Engineering Group Corporation
Jianzhu Jiegou Xuebao/Journal of Building Structures | Year: 2012

With quasi-static tests, the seismic performance of five kinds of shale ceramsite concrete shear walls were studied. The effects of height-width ratios and reinforcement ratios of shear walls were considered. The failure pattern, hysteretic loops, bearing capacities, ductility, energy dissipation, stiffness of shale ceramsite concrete shear walls were analyzed. Analytical result indicates that the shale ceramsite concrete shear walls have good ductility and mechanical properties. The height-width ratio is the major factor affecting the failure mode of shale ceramsite concrete shear walls. The failure mode of shale ceramsite concrete shear walls is similar to common concrete shear wall and other light weight aggregate concrete shear wall. The failed regions of shale ceramsite concrete shear walls mainly concentrate within the width of the shear walls on the bottom above. To increase the vertical reinforcement ratio will help improving the deformation properties and the bearing capacity of shale ceramsite concrete shear walls. To increase the transverse reinforcement ratio can not proportionally improve the bearing capacity of shear walls. Based on the analogous truss model calculation theory and the dowel actions of vertical reinforcement for shear wall, the calculation formula of the bearing capacity for shale ceramsite concrete shear walls was established and the calculate results were compared with test results.


Peng T.,Hunan construction engineering group corporation
Applied Mechanics and Materials | Year: 2013

Because of its preventing reflection cracks on the base of the asphalt macadam, improving the high temperature stability and resistance to water damage ability etc, it is getting more and more widely used, but when ATB30 base construction and prone to aggregate segregation and compaction characteristics, combining entity Xu Ping south highway engineering research, puts forward the reasonable paving and rolling technology, effectively avoid the aggregate segregation, improve the degree of compaction, guarantees the construction quality and progress. © (2013) Trans Tech Publications, Switzerland.


Sun C.,Hunan Construction Engineering Group Corporation
Proceedings - 2013 4th International Conference on Intelligent Systems Design and Engineering Applications, ISDEA 2013 | Year: 2013

After reviewing the historical origin of China s expressway management system, the paper analyzes the current highway management system from construction managements, trade management, operation management and traffic management, and puts forward the concrete thinking ways of reforms for the expressway management system that can strengthen the government macro-adjust and controls, perfect the legal system, push forward the enterprise license running, and realize the express highway scale benefit etc. © 2013 IEEE.

Loading Hunan construction engineering group corporation collaborators
Loading Hunan construction engineering group corporation collaborators