皮带通廊桥架地震反应分析

Seismic Response Analysis of Strap Traverse Bridge Frame

在综合分析国内外有关皮带通廊结构设计理论研究的基础上,结合工程实例用SAP2000对皮带通廊桥架进行数值模拟,并用有限元方法对皮带通廊桥架结构的动力特性进行模态分析。在模态分析的基础上,还对桥架结构进行反应谱分析,即同时考虑结构水平及竖向地震作用的影响,按照规范将结构的自重与水平和竖向地震作用进行4种工况分析,得出结构在各种工况下的地震反应。最后提出皮带通廊桥架结构抗震设计的合理化建议,研究成果具有一定的理论意义和工程使用价值。

Based on the analysis of strap traverse structural design at home and abroad,SAP2000was used to make a numerical simulating analysis of Strap Traverse Bridge frame with specific engineering,and the mode analysis is carried out in dynamic characteristics of strap traverse bridge frame by using finite element method.On the basis of Modal Analysis,this paper also carried out response spectrum analysis of the Bridge frame.Considering the influences of the horizontal and vertical earthquake action of structure,4 conditions have been analyzed in view of the dead weight of structure and seismic action in horizontal and vertical,come to the seismic response of structure under various conditions,through the analysis to get the corresponding conclusion,proposed the rationalization proposal for seismic design of strap traverse bridge frame.The research has a certain theoretical significance and engineering use value.