外廊式单跨框架结构加柱改造后基于IDA分析的抗震性能研究

英文篇名：STUDY ON RETROFITTING WITH ADDING COLUMNS ON GALLERY TYPE SINGLE-SPAN FRAME BASED ON IDA METHOD
中文刊名：建筑技术
英文刊名：Architecture Technology
作者：杜定发 ; 潘志宏
英文作者：DU Ding-fa1 ; 2 ; PAN Zhi-hong1(1.Nanjing Branch of Jiangsu Union Technical Institute ; 210019 ; Nanjing ; Jiangsu ; China ; 2.School of Civil Engineering and Architecture ; Jiangsu University of Science and Technology ; 212003 ; Zhenjiang ; Jiangsu ; China)
中文关键词：外廊式单跨框架结构 ; 加柱改造 ; 增量动力分析(IDA) ; 倒塌储备系数(CMR)
英文关键词：gallery type single-span frame ; retrofitting with adding column ; incremental dynamic analysis ; collapse margin ratio
出版日期：2012-09-15
机构：江苏联合职业技术学院南京分院;江苏科技大学土木工程与建筑学院;
年：2012
期：09
出版单位：建筑技术

摘要

研发单跨悬挑外廊改为双跨的加固方法,以静力弹塑性分析所优选的截面柱,在外廊式单跨框架结构挑梁处增加柱子,基于增量动力分析(IDA)方法对原结构和加柱结构从损伤和倒塌储备系数(CMR)两方面进行抗震分析,结果表明在遭遇相同地震动作用后,加柱结构的损伤程度及抗倒塌能力均优于原结构。
The aim of the study is to develop the strengthening approach that changes the structure with cantilevered gallery from single-span into double-span,which can provide the basis for the seismic strengthening on gallery type single-span frame.Based on incremental dynamic analysis method,study the damage and collapse margin ratio of structure reinforced with the approach that add columns to gallery of former frame,contrast to former structure.The results show that structure added columns picked by nonlinear static analysis is superior to the former structure on the damage and collapse margin ratio,with the same ground motion effect.

引文

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