屈曲约束钢板联肢剪力墙结构的弹性分析  

Elastic Analysis of Coupled Shear Walls with Buckling-Restrained Steel Plates

作　　者：王海江 李国强[1,2] 黄小坤[3] 孙飞飞[1,2] WANG Haijiang;LI Guoqiang;HUANG Xiaokun;SUN Feifei(College of Civil Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongjl University,Shanghai 200092,China;China Academy of Building Research,Beijing 100013,China)

机构地区：[1]同济大学土木工程学院,上海200092 [2]同济大学土木工程防灾国家重点实验室,上海200092 [3]中国建筑科学研究院,北京100013

出　　处：《建筑钢结构进展》2018年第6期57-67,共11页Progress in Steel Building Structures

摘　　要：高层结构常采用混凝土联肢剪力墙形式抵抗地震作用。然而在联肢剪力墙体系中,传统的连系构件(如混凝土连梁、钢连梁或钢骨混凝土连梁)均存在着各自的不足。提出一种新型的结构形式——屈曲约束钢板联肢剪力墙结构。通过在整体墙中部开设竖向贯通的洞口并均匀布置屈曲约束钢板组件来改进传统联肢剪力墙结构的抗震性能。其中屈曲约束钢板组件主要包括一片薄钢板以及布置其两侧的抑制其剪切屈曲的盖板。这种结构形式具有耗能能力强、可修复性能好并具有与整体墙相近的弹性抗侧刚度。基于连续化方法,研究了这种结构的弹性性能,提出了其刚度设计公式及强度设计理论公式。随后依据强度破坏准则推导出基于弹性设计的理论公式和方法。最后通过一个实际算例验证了所提出的设计理论及设计公式的正确性及在实际工程中的可行性。Concrete coupled shear wall structures are commonly used in high - rise structures to resist the seismic action.However , coupling elements in coupled shear walls always exhibit less desirable seismic performance.An innovativestructural system , coupled shear walls with buckling - restrained steel plates ( CSW - BRSPs ) is proposed in this paper.In this system , a solid cantilever shear wall is transformed into segments of shear wall piers interconnected withbuckling - restrained steel plates , aiming at improvingthe seismic behavior of the wall system.The key element ,buckling - restrained steel plate ,is composed of a layer of thin steel plate and two layers of concrete plates , which areemployed to restrain the shear buckling of infill steel plate under shear force.The CSW - BRSPs have advantages ofhigh energy dissipating capacity ,ease of repair , and extraordinary elastic stiffness.Based on continuous mediummethod , the research focuses on elastic behavior of the system , in which the design methods in terms of stiffness andstrength are proposed.Besides , a full set of design theory is developed for ease of application.An example is alsopresented to illustrate the design philosophy and calculation approach.

关 键 词：屈曲约束钢板 联肢剪力墙 耗能结构 高层结构 连系构件 

分 类 号：TU352.1[建筑科学—结构工程]