基于Pushover的装配式再生混凝土框架结构抗震性能评估  

Seismic performance evaluation of prefabricated recycled concrete frame structure based on Pushover

作　　者：张华 刘文锋[1,2] 王召猛 Zhang Hua;Liu Wen-feng;Wang Zhao-meng(School of Civil Engineering,Qingdao Technological University,Qingdao 266033,China;Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]山东省蓝色经济区工程建设与安全协同创新中心,山东青岛266033

出　　处：《工程抗震与加固改造》2020年第2期28-36,共9页Earthquake Resistant Engineering and Retrofitting

摘　　要：在进行结构抗震设计时,结构抗震性能分析与评估是其必不可少的关键内容。基于再生混凝土本构关系的输入、梁柱节点处理、Pushover分析方法三个方面,建立了基于Pushover的装配式再生混凝土框架结构抗震性能分析方法。并基于15栋不同结构高度、再生骨料取代率的模型算例,采用有限元分析软件(SAP2000),利用Pushover分析方法进行结构的抗震性能分析。结果表明,再生混凝土框架结构在极限状态、屈服状态、四级设防水准状态下,其抗震性能较基准结构有所减弱,其结构弹塑性变形能力未达到规范要求,因此在进行相关的再生混凝土结构抗震设计时,应强化其再生混凝土框架结构的弹塑性变形能力。Structural seismic performance analysis and evaluation is an essential key element in structural seismic design.Based on the input of constitutive relation of recycled concrete,beam-column node processing and Pushover analysis method,the seismic performance analysis method of prefabricated recycled concrete frame structure based on Pushover is established.Based on the model examples of 15 different structural heights and recycled aggregate replacement rates,the finite element analysis software(SAP2000)is used to analyze the seismic performance of the structure using Pushover analysis method.The results show that the seismic performance of the recycled concrete frame structure is weaker than the reference structure under the limit state,yielding state and the four-level waterproofing state.The elastoplastic deformation capacity of the structure is not up to the specification,so the relevant recycled concrete structure is carried out.For seismic design,the elastoplastic deformation capability of the recycled concrete frame structure should be strengthened.

关 键 词：装配式再生混凝土框架结构 本构关系 梁柱节点处理 PUSHOVER分析 

分 类 号：TU375.4[建筑科学—结构工程]