Taking the example of the rotatable bridge crossing South Datong-Puzhou Railway of Huaidong Road in Yuncheng City,this paper analyzes and compares the T-structure scheme and the continuous beam scheme under the E2 earthquake level.The conclusion is:(1)The seismic isolation scheme significantly reduces the stress on the main pier;(2)Under conventional reinforcement conditions,the seismic capacity of T-structure scheme E2 is insufficient,and the seismic isolation scheme meets the requirements;(3)The seis-mic safety of the bridge main pier is mare than 30 times higher than that of the T-structure scheme.The final selection of seismic iso-lation scheme for this project provides a reference for the seismic design of relevant engineering cases.
关键词
转体桥梁/方案比选/抗震/有限元分析/减隔震
Key words
rotatable bridge/comparison and selection of schemes/anti-seismic/finite element analysis/seismic isolation
维普
万方数据