scholarly journals The Construction Scheme Analysis and its Application of the Southern Portal Section of Urban Mountain Large-span Road Tunnel Under Shallow-buried Bias and High Voltage Tower in Zhuhai

2021 ◽  
Vol 861 (5) ◽  
pp. 052099
Author(s):  
G Y Xu ◽  
Y Zhou ◽  
Y Q Wang ◽  
X G Li ◽  
B Y He ◽  
...  
2012 ◽  
Vol 178-181 ◽  
pp. 2240-2245
Author(s):  
Jian Ming Hao ◽  
Kai Fa Zhou

It is critical to choose a reasonable closure scheme for the construction or post- construction state of multiple large-span prestressed continuous beam bridges. The feasible closure schemes were analyzed and evaluated. The optimum closure scheme analysis method was proposed. Take Wei river bridge for instance, by deformation, internal force and stress comparison, and construction roubustness analysis, the optimum closure scheme is set down to ensure the girder close smoothly with reasonable internal force.


2013 ◽  
Vol 788 ◽  
pp. 534-537 ◽  
Author(s):  
Zhen Xing Li

Different construction schemes in the same construction method have great influence on structure mechanics of grid structure, which is very important for the security and stability in large-span space grid structure. So in order to guarantee the quality and safety of the structure during construction, the selection of construction scheme is particularly important. In this paper, the following practical engineering is adopted to discuss characteristics of different construction schemes in large-span space grid structure and provide a reference for what construction scheme should be selected in the installation of similar space grid structures.


2012 ◽  
Vol 238 ◽  
pp. 599-602
Author(s):  
Wen Feng Du ◽  
Fu Dong Yu ◽  
Zhi Yong Zhou ◽  
Li Ming Zhu

The design and analysis of the suspended lattice shell located in Zhejiang province of China is introduced, and some key problems are discussed in this paper. Especially, tensile cable is a key element in large span suspended structures. And the construction of tensile cable is the key technology problem as the tensile force of tensile cable is very sensitive to the construction precision. The tension slacken analysis method is used to obtain the control stress and complete the work with only one time tensile construction. Results of the engineering show that the construction process is simple and the construction scheme is economic.


2014 ◽  
Vol 577 ◽  
pp. 1093-1096
Author(s):  
Li Ming Zhu ◽  
Zheng Hao Zhu ◽  
Chao Jie Kang

The construction of stay cable is the key technology problem in large span spatial structures. This paper carried out a study on the construction scheme of stay cables based on the practical project of Shiyan stadium roof. The loss of tensile force caused by the seven steel wring with different construction order is summarized according to the experimental construction, and the tensile force slacken analysis method was used to calculate the stress of construction. Moreover, the loss of tensile force caused by anchor and relaxation is considered too. Then, the control tensile force of construction, which is used to realize the tensile construction one time, is obtained. Results of the engineering test show that the construction process is simplified and he construction scheme is economic under the condition of allowed precision. The method can provide reference for similar projects.


2016 ◽  
Vol 164 ◽  
pp. 152-161 ◽  
Author(s):  
Zutao Zhang ◽  
Xingtian Zhang ◽  
Yagubov Rasim ◽  
Chunbai Wang ◽  
Bing Du ◽  
...  

2011 ◽  
Vol 368-373 ◽  
pp. 114-119 ◽  
Author(s):  
Bing Wu ◽  
Mei Li Meng ◽  
Xue Yi Fu ◽  
Can Sun ◽  
Ye Wen Feng

The suspend-dome structure is designed for the steel roof of Pingshan Basketball Gymnasium for Universidad 2011 Shenzhen, the overlapping diameter is 72m, supporting by 24 RC columns evenly distributed along the periphery. The following analyses were carried out: the design criterion of the suspend-dome; the linear and nonlinear buckling analysis; the detail analysis of the complex key joint, the arrangement analysis of the suspending chord and the prestressed cable; the construction stage modeling and construction scheme analysis. The key issues and relevant construction method were summarized, which could be used as reference in the similar design.


2018 ◽  
Vol 2 (4) ◽  
Author(s):  
Xiao Li ◽  
Qiantu He

When constructing the tower beam in a traditional way, the tower beam will be simultaneously constructed with the tower column, it asks for a complicated construction procedure, difficult construction organization, long operating cycle, and highly increased construction cost. With the progress of technology, Asynchronous construction scheme of the tower column and tower beam is adopted and applied. This paper is based on the case of asynchronous construction of the H-type cable tower and beam of the six large-span Ao jiang Bridges.


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