某市民中心工程项目采用框架支撑角筒悬挂复杂钢结构体系，结构设计时通过在

A civic center project adopts a frame-supported angle tube to suspend a complex steel structure system. In the design of the structure, a suspension truss is installed in the atrium and cantilevered arch area to reduce the floor span and reasonably transmit the floor load to the angle tube to achieve Meet the requirements of the building for large space; ordinary steel braces and buckling restraint braces are set in sections in the angle tube to improve the load capacity of the angle tube and form multiple seismic defense lines on the structure; consider the actual construction sequence and conduct construction simulation analysis , Calculate the true internal force and vertical displacement of the suspension truss. A variety of software is used to calculate and analyze the structure under small earthquakes, medium earthquakes and large earthquakes. The results show that the main structure meets the C-level seismic performance target requirements, and the deflection of the suspension truss also meets the limit requirements of the relevant codes. However, the vertical deformation of the mid-span is very large, and the design and construction cannot be ignored.

A citizen center project uses a frame support angle barrel hanging complex steel structure system, the structure design by setting the suspension truss in the atrium and the suspension bow area, to reduce the floor span, the floor load reasonable transfer to the corner barrel, to meet the requirements of the building for large space; A variety of software is used to calculate the structure of small earthquakes, isoshocks and large earthquakes. The results show that the main structure meets the requirements of The C-class seismic performance target, and the deflection of the suspension truss also meets the limit requirements of the relevant specifications, but its vertical deformation across the middle is very large, and the design and construction can not be ignored.

A citizen center project adopts frame supported angle tube to hang complex steel structure system. In structural design, suspension truss is set in atrium and cantilever arch area to reduce floor span and transfer floor load to angle tube reasonably, so as to meet the requirements of building for large space; ordinary steel support and buckling restraint support are set in sections in corner tube to improve bearing capacity of corner tube Considering the actual construction sequence, the construction simulation analysis is carried out to calculate the real internal force and vertical displacement of the suspension truss. Various kinds of software are used to calculate and analyze the structure under small, medium and large earthquakes. The results show that the main structure meets the requirements of grade C seismic performance, and the deflection of suspension truss also meets the limit requirements of relevant codes. However, the vertical deformation in the middle of span is very large, which can not be ignored in design and construction.<br>