型钢混凝土柱位移延性系数研究  

Study on the displacement ductility index of steel reinforced concrete columns

作　　者：张志伟[1] 郭子雄[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《西安建筑科技大学学报（自然科学版）》2006年第4期528-532,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(80478120);福建省自然科学基金资助项目(E0410024)

摘　　要：综合现有型钢高强混凝土柱的试验研究成果,讨论了影响型钢高强混凝土柱位移延性系数的因素,并基于BP神经网络研究了轴压力系数、体积配箍率、剪跨比和配钢率等参数对型钢高强混凝土柱延性的影响及规律.通过对国内50根型钢高强混凝土柱试验数据的整理和回归分析,得到考虑多因素的位移延性系数经验公式,该公式可供型钢高强混凝土框架柱抗震设计和抗震性能评估参考.This paper first presented a study on the seismic displacement ductility index of steel reinforced high-strength concrete columns based on the existing experimental data, and than discusses the influential factor of seismic displacement ductility and the various parameters such as the axial compression ratio, volume stirrup ratio, shear span ratio and steel ratio which influence the ductility of steel reinforced high-strength concrete columns and the rules based on the BP nerve network. After treatment and analysis of 50 domestic test data, a functional expression is proposed by a statistical regression. This expression can be applied to the seismic design and assessment of steel reinforced high-strength concrete columns.

关 键 词：型钢混凝土柱 位移延性 回归分析 抗震评估 

分 类 号：TU317[建筑科学—结构工程]