自复位钢框架结构研究进展Ⅰ:基于预应力拉杆/拉索  

Research Progress of Self-centering Steel FramesⅠ:Based on Prestressed Bar/Cables

作　　者：应琪 陈云 欧阳素娟[1] YING Qi;CHEN Yun;OUYANG Sujuan(College of Civil Engineering and Architecture,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学土木建筑工程学院,海口570228

出　　处：《结构工程师》2018年第5期170-177,共8页Structural Engineers

基　　金：国家自然科学基金资助(51408170);海南省重点研发计划(ZDYF2016151);海南省科协青年科技英才创新计划(201501)

摘　　要：传统的钢框架结构强震时梁柱节点或柱脚可能产生脆性破坏而导致不易修复或代价昂贵。可恢复功能钢框架结构基于结构的摇摆/自复位机理,能够有效减轻结构的地震反应和震后残余变形。本文详细介绍了基于预应力拉索/杆的三种不同自复位钢框架结构,主要包括预应力拉索结合金属阻尼器的自复位钢框架、预应力拉索结合摩擦阻尼器的自复位钢框架和基于高强预应力拉索的自复位耗能支撑。系统分析和归纳了国内外关于基于预应力拉索的可恢复功能钢框架的研究进展及其发展趋势,对自复位钢框架的研究开发应用具有重要意义。Column base connections and beam-to-column connections of conventional steel frame structures may subject to serious damage under strong earthquakes and will result in difficult repair or costly repair.Resilient self-centering steel frames can effectively reduce the seismic response of the structure and its residual deformation after the earthquake based on rocking/self-centering mechanism.Here,the self-centering steel frames based on prestressed cables are divided into three types according to different damper types:steel dampers,friction dampers and self-centering energy dissipating dampers.This paper summarizes the latest research progress on the self-centering steel frames at home and abroad and predicts its development trend,which will have great significance for the development of self-centering steel frames in the future.

关 键 词：自复位 钢框架 预应力 阻尼器 残余变形 

分 类 号：TU391[建筑科学—结构工程]