Analysis Of The Long-span Beam String Structure’s Mechanical Behavior And Study On Its Control Of The Construction Process

In recent years, more and more place has high-rise, large spaces, long-span build-ing structures with the demand of China’s economic construction and the improvement of people’s living standard. Such as the National Stadium, Shanghai Pudong Internatio-nal Airport Terminal, Guangzhou International Convention and Exhibition Centre, Sh-enzhen Convention and Exhibition Center, Nanjing International Expo Center etc. Their investment reflects that the large-span steel structure building has become one of the m-ost important and most active areas of development. The Beam String Structure has so-me advantages that are simple structure, transfer clear, convenient construction and the perfect combination what structure of the building layout and styling can be, that has more favored by architects.However, the current theory research about the beam string structure falls behind. That is a structural analysis and construction process of combining systems analysis is still behind the actual engineering applications. Therefore it is necessary to study and explore this further, and we propose reasonable design, construction and optimization methods to build advanced technology, economical, safe application of long-span beam string structure. Because of above mentioned reason, this paper comprehensive analysis the Beam String Structure’s Mechanical Behavior under static and seismic loads by an engineering background that is a school gymnasium roof (truss string structure) in Zhuhai City, Guangdong Province., and it analysis the Beam String Structure made from prestressed beam string optimization improvement program, and also carried out the whole construction process simulation, process control indicators proposed construction. The main contents and conclusions of this paper are as followings:①We calculated using analysis software SAP2000to reasonable simplification of the actual model, and a model to create multiple conditions by collecting and sorting beam string structure data, that to prepare for the subsequent calculation.②We analysis the Beam String Structure’s Mechanical Behavior under static and seismic loads by using SAP2000analysis software, we can get the conclusion that wind load on the structure is beneficial and it can not afford the seismic design of control action truss string.③Access to relevant information, we computational analysis the Beam String Structure, to determine the reasonable value of prestressed, and truss string of pretensioned optimization.④We improve prestressed beam string from the height of the control Beam String Structure, and consider the overall stability of the structure⑤We select the appropriate structure for the project construction program, and analyzed the whole construction process simulation, focusing on analysis of cable tensioning process and the lifting process, proposed the construction process control indicators.Conclusion of this paper can hopefully be a reference manual for future design of the Beam String Structure and construction process to calculate the control of the Beam String Structure.