基于最大增量速度的RC框架模型易损性分析

Vulnerability analysis of RC frame model based on maximum incremental velocity

结构地震易损性分析不仅是研究结构地震破坏程度的基础,也是结构震害损失预测的主要方法,在结构破坏和损失预测中都起着重要的作用。以防灾科技学院新建北校区教学楼为例,基于Opensees有限元软件,经简化后建立二维模型,以最大层间位移角为损伤指标、最大增量速度(MIV)为地震动强度参数,选取30条地震动进行易损性分析,得出了该教学楼的易损性曲线,为其震害损失的预测提供依据。

Structural seismic vulnerability analysis is not only the basis of studying the degree of structural seismic damage,but also the main method for predicting structural damage loss.It plays an important role in structural damage and loss prediction.The newly-built North Campus teaching building of Disaster Prevention Science and Technology Institute are taked as an example,the two-dimensional model based on Opensees finite element software,is established the maximum interlayer displacement angle as the damage index,the maximum incremental velocity(MIV)as the ground motion intensity parameter are selected and 30 ground motions for vulnerability analysis is selected.the vulnerability curve of the teaching building is obtained,which provides a basis for the prediction of earthquake damage loss.