钢筋混凝土框架结构强柱弱梁整体失效模式可控设计

白久林; 金双双; 欧进萍

doi:10.6052/j.issn.1000-4750.2016.03.0175

钢筋混凝土框架结构强柱弱梁整体失效模式可控设计

1.
重庆大学土木工程学院, 重庆 400045;
2.
哈尔滨工业大学土木工程学院, 黑龙江, 哈尔滨 150090

基金项目: 国家自然科学基金项目（51261120376；51608073）

详细信息

作者简介:
金双双(1986-),女,浙江人,讲师,博士,主要从事钢板剪力墙结构研究(E-mail:jin_shuangs@163.com);欧进萍(1959-),男,湖南人,教授,博士,工程院院士,从事防灾减灾、结构健康监测及振动控制研究(E-mail:oujinping@hit.edu.cn).

通讯作者:
白久林(1985-),男,四川人,讲师,博士,主要从事地震工程与结构抗震设计研究(E-mail:baijiulin@cqu.edu.cn).

中图分类号: TU313.3;TU375.4
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出版历程
- 收稿日期: 2016-03-10
- 修回日期: 2016-06-30
- 刊出日期: 2017-08-24

STRONG-COLUMN WEAK-BEAM GLOBAL SEISMIC FAILURE MODE CONTROL-BASED DESIGN OF REINFORCED CONCRETE FRAME STRUCTURES

1.
School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2.
School of Civil Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China

摘要

摘要: 该文发展了钢筋混凝土框架结构强柱弱梁地震整体失效模式可控设计方法。基于能量平衡概念和塑性内力设计机制，提出了改进的能量平衡方程和塑性内力设计方法来实现具有不同滞回性能结构在不同设防烈度下的结构设计。设计了4个具有不同几何配置的结构，并研究了结构沿楼高的强柱弱梁系数分布。分别对结构进行Pushover分析和22条地震下的大震弹塑性时程分析，研究了结构的整体能力曲线、屈服机制、最大层间位移角分布和柱端弯矩需求。分析结果表明，该文所提方法不需要任何迭代便能实现结构预期的抗震性能和整体失效模式，克服了传统抗震设计需不断试凑迭代来满足抗震性能的缺点。
- 强柱弱梁机制 /
- 整体失效模式 /
- 钢筋混凝土框架结构 /
- 抗震设计 /
- 抗震性能
Abstract: A strong-column weak beam global seismic failure mode control-based design approach is developed for reinforced concrete (RC) frame structures. Based on the concept of energy balance and plastic internal force mechanism, a modified energy balance equation and design method for plastic internal forces are proposed to achieve the seismic design of structures with different hysteretic behaviour for multiple different seismic hazard levels. Four RC frame structures with different geometry configurations are designed and the distribution of strong-column weak-beam ratio along the height is investigated. Pushover analyses and nonlinear time history analyses under 22 ground motions for severe seismic hazard level are conducted, and the global capacity curves, yield mechanism, maximum inter-story drift ratio distribution as well as the moment demands of column ends are studied. The analytical results indicate that the proposed method can achieve the desired seismic performance and global failure mode without any iterations, avoiding the shortcoming of conventional seismic design method which employs the trial an error strategy to achieve the required seismic performance.
- strong-column weak-beam mechanism /
- global failure mode /
- reinforced concrete frame structures /
- seismic design /
- seismic performance

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参考文献(20)

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