Seismic tests of post-tensioned self-centering building frames with column and slab restraints

作     者：Chung-Che CHOU Jun-Hen CHEN 

作者机构：Department of Civil EngineeringTaiwan UniversityTaipeiChina Federal Engineering Consultant Inc.TaipeiChina 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2011年第5卷第3期

页      面：323-334页

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：The test programs were supported by the Science Council and Center for Research on Earthquake Engineering(NCREE) Taiwan 

主　　题：post-tensioned frame frame expansion column restraint sliding slab frame test shake table test 

摘      要：Post-tensioned(PT)self-centering moment frames have been developed as an alternative to typical moment-resisting frames(MRFs)for earthquake *** a PT frame deforms laterally,gaps between the beams and columns ***,the gaps are constrained by the columns and the slab in a real PT selfcentering building *** paper presents a methodology for evaluating the column restraint and beam compression force based on the column deformation and gap openings at all *** method is verified by cyclic tests of a full-scale,two-bay by one-story PT ***,a sliding slab is proposed to minimize restraints on the expansion of the PT *** table tests were conducted on a reduced-scale,two-by-two bay one-story specimen,which comprises one PT frame and two gravitational *** PT frame and gravitational frames are self-centering throughout the tests,responding in phase with only minor differences in peak drifts caused by expansion of the PT *** the specimen is excited by a simulation of the 1999 Chi-Chi earthquake with a peak ground acceleration of 1.87 g,the maximum interstory drift and the residual drift are 7.2%and 0.01%,respectively.