新型自复位钢结构体系研究进展

State-of-the-art of New Self-centering Steel Structural Systems

自复位钢结构体系不仅可减少甚至消除结构震后的残余变形,还可联合消能减震装置增加结构耗散地震能量的能力,因而具有很好的工程应用前景。在对自复位钢结构体系的构成与特点进行简单介绍的基础上,系统地对已经提出的多种新型自复位钢结构体系进行归类总结,重点从自复位钢框架体系、自复位钢框架支撑体系、自复位钢板剪力墙体系以及自复位消能减震装置4个方面阐述了不同结构体系的构造形式、基本原理及其研究现状,最后指出了自复位钢结构体系发展中需进一步研究的问题。

Self -centering steel structural systems not only can reduce even eliminate the post-earthquake residual deformation,but also can increase the energy dissipation capacity by combining with the energy-dissipation devices.Therefore,this type of systems are promising for engineering application.Components and basic characteristics of the self-centering steel structural systems were introduced briefly.New proposed self-centering steel structural systems were categorized as self-centering steel frame system,self-centering steel braced-frame system,self-centering steel plate shear wall system and self-centering energy-dissipation devices. Configurations,rationale and current research status of each system were summarized detailedly.Further research issues that are necessary for the development of self-centering steel structural systems are recommended.