填充墙对自复位预应力混凝土框架高阶模态效应的影响分析

黄林杰; 周臻; 仇健; 司怡

doi:10.13204/j.gyjz202001007

填充墙对自复位预应力混凝土框架高阶模态效应的影响分析

doi: 10.13204/j.gyjz202001007

东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096

基金项目:

国家重点研发计划资助项目（2018YFC0705）；国家自然科学基金资助项目（51878150）；江苏省重点研发资助项目（BE2018675）；江苏省普通高校研究生科研创新计划资助项目（KYCX_180118）。

详细信息

作者简介:
黄林杰,男,1988年出生,博士研究生。电子信箱:hljseu@163.com

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- 文章访问数: 55
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- 被引次数: 0
出版历程
- 收稿日期: 2019-03-01

INVESTIGATION ON INFLUENCE OF INFILL WALLS ON HIGHER MODE EFFECT OF SELF-CENTERING PRESTRESSED CONCRETE FRAME STRUCTURES

Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 210096, China

摘要

摘要: 基于《预制混凝土抗震结构体系设计指南》分别构建了具有自复位、摩擦耗能型节点的5层和9层预应力混凝土(SCPC)框架结构模型,并满布填充墙。利用OpenSees软件研究填充墙对自复位预应力混凝土框架结构高阶模态等动力响应的影响。从FEMA P695中选取22条地震动记录并调整至设计基准地震烈度(DBE)和罕遇地震烈度(MCE)水平,分别输入4个有限元模型进行动力分析。研究结果表明:布置填充墙可以有效提高结构刚度和耗能能力,降低结构高阶模态效应和损伤集中效应,以及显著减小结构的层间位移角。此外,布置填充墙后,结构的残余变形虽有一定程度增大,但仍处在可修复范围内。
- 自复位 /
- 预制 /
- 预应力混凝土框架 /
- 填充墙 /
- 高阶模态 /
- 动力响应
Abstract: The case-study five-story and nine-story self-centering prestressed concrete (SCPC) frames for the PRESSS-Technology Design Example Handbook were selected as analytical model.The friction damper was installed into beam-column connections and infill walls was installed into the SCPC frame structure. The numerical models of the 4 SCPC frame structures were established via the finite element software OpenSees to investigate the influence of infill walls on seismic performance (i.e.higher model effect) of SCPC frames. Furthermore, dynamic analysis under the design basis earthquake (DBE) and the maximum considered earthquake (MCE) actions of 22 suits ground motion records selected from FEMA P695 were carried out on the 4 models accordingly. Comparison of the results showed that the initial stiffness and energy dissipating capacity of structures were improved, the higher model effect and damage concentration effect of SCPC frames were decreased, the inter-story drift ratio was increased. Though the residual deformation was enhanced slightly when the infill walls was installed itno SCPC frame structures, the structure was still repairable.
- self-centering /
- precast /
- prestressed concrete frame /
- infill walls /
- higher mode effect /
- dynamic response

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参考文献(19)

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