SRC柱主要设计参数的损伤敏感度分析

英文篇名：Damage sensitivity analysis for main design parameters of SRC columns
中文刊名：建筑结构
英文刊名：Building Structure
作者：胡义 ; 郑山锁 ; 陶清林
英文作者：Hu Yi1 ; 2 ; Zheng Shansuo1 ; Tao Qinglin1 ; 2(1 School of Civil Engineering ; Xi′an University of Architecture and Technology ; Xi′an 710055 ; China ; 2 School of Civil & Architecture Engineering ; Anhui University of Technology ; Maanshan 243032 ; China)
中文关键词：型钢混凝土柱 ; 设计参数 ; 损伤敏感度 ; 极限耗能能力 ; 骨架曲线
英文关键词：steel reinforced concrete column ; design parameter ; damage sensitivity analysis ; ultimate energy dissipation capacity ; skeleton curve
出版日期：2013-03-25
机构：西安建筑科技大学土木工程学院;安徽工业大学建筑工程学院;
年：2013
期：06
出版单位：建筑结构

摘要

作为框架结构不可或缺的耗能构件,型钢混凝土(SRC)柱主要以阻尼力做功及滞回变形方式耗散地震输入能量。以SRC柱为研究对象,基于收集到的国内近年来关于低周往复荷载作用下SRC柱相关试验研究的77组实测数据,以极限耗能能力作为评价损伤的表征量,结合《混凝土结构设计规范》和《型钢混凝土结构设计规程》,给出了SRC柱极限耗能能力的确定方法,计算分析了SRC柱截面尺寸、混凝土强度及含钢率等设计参数的损伤敏感度,揭示了主要设计参数对SRC柱损伤演化的影响规律。研究成果可为建立地震激励下型钢混凝土框架结构楼层损伤模型提供理论和数据支持。
As an indispensable dissipation member in the frame structures,steel reinforcement concrete(SRC) columns dissipates the inputting seismic energy mainly by damping force working and hysteretic deformation.Taking the SRC columns as research object,ultimate energy dissipation capacity of SRC columns is used as characterization constants for damage.Based on 77 group experimental data about SRC columns under low cyclic loadings,combining with Code for design of concrete structure and Technical specification for design of SRC composite structure,calculational method for the ultimate energy dissipation capacity of SRC columns was provided and damage sensitivity of sectional dimension,concrete strength and steel ratio were analyzed,then the influence law of main design parameters on damage evolution of SRC columns was obtained.The achievements can provide theoretical support for establishing story damage model of SRC frame structures.

引文

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