结构工程师2023，Vol.39Issue(6)：98-106,9.
基于DAP方法的车辆基地上盖全框支剪力墙结构抗震性能评估
Seismic Performance Assessment of Complete Frame-supported Shear Wall Structure on Vehicle Depot Upper-cover Based on DAP Method
摘要
Abstract
In order to comprehensively evaluate the seismic performance of complete frame-supported shear wall structure,which is ultra-limit and increasingly widely used in the vehicle depot upper-cover,the structural capacity spectrum and nonlinear demand spectrum were firstly established,and then the displacement-based adaptive pushover(DAP)analysis was used to study the structural failure mechanism.Furthermore,the seismic performance was evaluated based on the DAP analysis results.Finally,elasto-plastic time history analysis was carried out to verify the seismic performance evaluation results.Results reveal that the structural ductility coefficient is 3.338,and the plastic hinge distribution under horizontal displacement load is reasonable.There is no seismic weak part and the designed structure can meet three-level fortification requirements and design performance target.The seismic structural overstrength factor is not less than 1.18 under different seismic levels,demonstrating good seismic performance,collapse resistance and redundancy.The yield mechanism of the structure under rare earthquakes is consistent with the results of the DAP analysis,and the maximum inter-story displacement angle does not exceed the limit.In summary,this structure can meet the requirements of predetermined performance targets.关键词
车辆基地/全框支剪力墙/DAP分析/破坏机制/抗震性能评估/弹塑性时程分析Key words
vehicle depot/complete frame-supported shear wall structure/DAP method/failure mechanism/seismic performance assessment/elasto-plastic time history analysis引用本文复制引用
马晓飞..基于DAP方法的车辆基地上盖全框支剪力墙结构抗震性能评估[J].结构工程师,2023,39(6):98-106,9.基金项目
中铁第一勘察设计院集团有限公司科研开发项目(院科20-26) （院科20-26）
