型钢延伸长度对SRC-RC竖向混合结构抗震性能影响  

Impact of Extension Length of Shape Steel on Seismic Performance of SRC-RC Vertical Hybrid Structure

作　　者：闫丽娟 YAN Lijuan(Department of Civil Engineering,Qindao College of Qingdao Technological University,Qingdao,Shandong 266106,China)

机构地区：[1]青岛理工大学琴岛学院土木工程系,青岛266106

出　　处：《安徽建筑大学学报》2018年第4期8-11,共4页Journal of Anhui Jianzhu University

基　　金：山东省教育厅高校科技计划项目(J16LG57)

摘　　要：为了研究SRC-RC竖向混合框架结构过渡层柱中型钢延伸长度对结构抗震性能的影响,进而确定出合理的型钢延伸长度,运用PKPM结构设计软件建立了8个不同型钢延伸长度的SRC-RC竖向混合框架结构模型,并运用SATWE有限元分析模块和EPDA&PUSH弹塑性分析模块分别对8个模型进行了多遇地震和罕遇地震作用下基底剪力、过渡层处剪力及层间位移、位移延性系数的计算,分析得出:在多遇地震作用下,基底剪力随型钢延伸长度的增加而增加,过渡层处层间位移随型钢延伸长度的增加而减小;在罕遇地震作用下,基底剪力和过渡层处层间位移随型钢延伸长度的增加而减小,位移延性系数随型钢延伸长度的增加呈现先升后降的趋势,并且当型钢延伸长度为0.6倍柱高时,延性系数达到最大值;含钢率4.03%和5.36%两种情况下,随着型钢延伸长度的增加结构的反应均表现出一致的变化规律。In order to study the impact of extension length of shape steel on seismic performance of SRC-RC vertical hybrid structure and determine the reasonable extension length of the shape steel,8 SRC-RC vertical hybrid structure models with different steel extension lengths are established using PKPM software.And the base shear, shear force at transition layer and interlayer displacement, displacement ductility coefficient are calculated using the finite element anlysis module named SATWE and the elastoplastic anlysis module named EPDAPUSH under frequent earthquake and rare earthquake. It is concluded that, under the frequent earthquakes, the base shear force increases with the increase of the extension length of the shape steel, and the interlayer displacement of the transition layer decreases with the increase of the extension length of the shape steel. Under the rare earthquakes,the displacement of the base shear and the transition layer decreases with the increase of the extension length of the shape steel, and the displacement changes with the extension length of the extension length of the shape steel, enhancing at first and then reducing, and resching peak value when the extension length of the shape steel gets close to three fifths of column height. In the case of 4.03% and 5.36% of shape steel,the reaction of the structures with the increasing length of the shape steel shows a consistent change rule.

关 键 词：型钢延伸长度 有限元分析 弹塑性分析 位移延性系数 

分 类 号：TU398[建筑科学—结构工程]