Seismic design and analysis of a high-rise self-centering wallbuilding:Case study  

作　　者：Ying ZHOU Rui WANG Yiqiu LU 

机构地区：[1]State Key Laboratory of Disaster Reduction in Civil Engineering,College of Civil Engineering,Tongji University,Shanghai 200092,China

出　　处：《Frontiers of Structural and Civil Engineering》2023年第11期1690-1706,共17页结构与土木工程前沿（英文版）

基　　金：the Distinguished Young Scientists Fund of National Natural Science Foundation of China(Grant No.52025083);the technical support of Shanghai CITI-RAISE Construction Group.

摘　　要：Post-tensioning self-centering walls are a well-developed and resilient technology.However,despite extensive research,the application of this technology has previously been limited to low-rise buildings.A ten-story selfcentering wall building has now been designed and constructed using the state-of-art design methodologies and construction detailing,as described in this paper.The building is designed in accordance with direct displacement-based design methodology,with modification of seismic demand due to relevant issues including higher-mode effects,second order effects,torsional effects,and flexural deformation of wall panels.Wall sections are designed with external energydissipating devices of steel dampers,and seismic performance of such designed self-centering walls is evaluated through numerical simulation.It is the first engineering project that uses self-centering walls in a high-rise building.The seismic design procedure of such a high-rise building,using self-centering wall structures,is comprehensively reviewed in this work,and additional proposals are put forward.Description of construction detailing,including slotted beams,flexible wall-to-floor connections,embedded beams,and damper installation,is provided.The demonstration project promotes the concept of seismic resilient structures and contributes to the most appealing city planning strategy of resilient cities at present.The paper could be a reference for industry engineers to promote the self-centering wall systems worldwide.

关 键 词：self-centering wall post-tensioned precast concrete wall seismic resilient structure high-rise building seismic design engineering practice 

分 类 号：TU352.11[建筑科学—结构工程]