建筑结构学报2017,Vol.38Issue(8):1-13,13.DOI:10.14006/j.jzjgxb.2017.08.001
钢筋混凝土柱地震破坏模式及考虑剪切变形的抗震性能研究进展
State of the art of seismic performance including shear effects and failure modes of reinforced concrete columns
摘要
Abstract
Reinforced concrete (RC) columns with unreasonable design,weak shear capacity and poor seismic details are vulnerable to flexure-shear failure or shear failure during earthquakes,which is prone to locally and totally collapse of structures and great losses.To further study the damage mechanism and seismic performance of shear-critical RC members,the research progresses on seismic failure modes,classification methods,and seismic performance considering shear effects for RC columns were presented.The results indicate that the seismic failure modes of RC columns can be categorized into flexure,shear and flexure-shear,but the failure mode of flexure-shear is difficult to judge precisely and often focused on by researchers in the seismic study and design.The shear effects on the seismic performance of shear-critical RC columns are mainly reflected in the plastic deformation stage,but the available methods for quantitative analysis of the shear effects are mainly depended on empirical models,and the generally accepted mechanical model for this problem is still need to study deeply.Moreover,the influences of the complex seismic loading (i.e.the history of cyclic loading) on the failure modes and damage characteristics of RC columns are mostly ignored in the previous studies and need to be investigated in-deepth in the future.关键词
钢筋混凝土柱/破坏模式/剪切变形/抗震性能Key words
reinforced concrete column/failure mode/shear deformation/seismic performance分类
建筑与水利引用本文复制引用
张勤,王娜,贡金鑫..钢筋混凝土柱地震破坏模式及考虑剪切变形的抗震性能研究进展[J].建筑结构学报,2017,38(8):1-13,13.基金项目
国家自然科学基金项目(51508154),江苏省自然科学基金项目(BK20150803),中国博士后科学基金面上项目(2015M581711). (51508154)