|本期目录/Table of Contents|

[1]陆铁坚,许军.高层钢框架-钢筋混凝土核心筒混合结构破坏过程的数值模拟[J].建筑科学与工程学报,2008,25(01):32-37.
　LU Tie-jian,XU Jun.Numerical Simulation of Failure Process of High-rise Steel Frame-RC Corewall Hybrid Structure[J].Journal of Architecture and Civil Engineering,2008,25(01):32-37.
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高层钢框架-钢筋混凝土核心筒混合结构破坏过程的数值模拟(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
25卷
期数:
2008年01期
页码:
32-37
栏目:
出版日期:
2008-03-20

文章信息/Info

Title:
Numerical Simulation of Failure Process of High-rise Steel Frame-RC Corewall Hybrid Structure
作者:
陆铁坚，许军
中南大学土木建筑学院,湖南长沙410075
Author(s):
LU Tie-jian, XU Jun
School of Civil Engineering and Architecture, Central South University, Changsha 410075, Hunan, China
关键词:
高层建筑;  钢框架-钢筋混凝土核心筒混合结构;  受力性能;  数值模拟
Keywords:
high-rise building;  steel frame-RC corewall hybrid structure;  mechanical performance;  numerical simulation
分类号:
TU375.4
DOI:
-
文献标志码:
A
摘要:
利用ABAQUS通用有限元程序对钢框架-钢筋混凝土核心筒混合结构的破坏过程进行了数值模拟。研究结果表明:该类结构在弹性阶段,芯筒承担绝大部分的水平力,一旦芯筒开裂,钢框架开始承担大部分水平力,且随着地震作用的加强,承担比例不断加大,钢框架起到了抗震第2道防线的作用; 芯筒在地震往复作用下首先在底部开裂; 随着损伤的不断积累,底层几乎全部开裂,中部沿楼板四周也开裂; 框架在中震与大震作用下均处于弹性阶段; 在特大震作用下,先底柱后中部梁出现塑性绞; 楼板在地震作用下产生了较大变形,在与芯筒和钢框架梁相连部位均产生了大量裂缝; 该类结构在地震作用下是双重抗震体系。
Abstract:
The finite element program ABAQUS was applied to study the numerical simulation of failure process of steel frame-RC corewall hybrid structure. The result shows that the concrete tube bored most of the horizontal force at the elastic stage of this structure, but steel frame carried most part of horizontal force once the corewall tube cracked. With the earthquake intensified, the steel frame carried the more and more horizontal force, which acted as the second seismic resistant system. Under earthquakes, cracks occurred firstly on the bottom of the corewall and almost the whole bottom was involved with the accumulation of damage, as well as the center of the floor cracked around the circumambience. The steel frame was on the elastic stage under moderate and heavy earthquake, but plastic cutter occurred firstly on the bottom column and then to the middle part of it under unusual earthquake. The remarkable deformation and a lot of cracks on the joint of corewall and steel frame beam of the floor were observed under earthquake. This structure in earthquake is a dual seismic resistant system.

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备注/Memo

备注/Memo:
收稿日期:2008-01-05
基金项目:国家自然科学基金项目(50478092)
作者简介:陆铁坚(1963-),男,湖南岳阳人,教授,工学硕士,E-mail:xj781112@163.com。
更新日期/Last Update: 2008-03-20