文章摘要
王贵珍,周玲珑,谭潜,罗文文,祝飞水.楼板及其配筋在RC框架结构实现抗震延性机制中的作用分析[J].地震工程学报,2021,43(2):421-429,452. WANG Guizhen,ZHOU Linglong,TAN Qian,LUO Wenwen,ZHU Feishui.Role of Slabs and Reinforcement in Implementation of the Seismic Ductility Mechanism of RC Frame Structures[J].China Earthquake Engineering Journal,2021,43(2):421-429,452.
楼板及其配筋在RC框架结构实现抗震延性机制中的作用分析
Role of Slabs and Reinforcement in Implementation of the Seismic Ductility Mechanism of RC Frame Structures
投稿时间:2019-07-11  
DOI:10.3969/j.issn.1000-0844.2021.02.421
中文关键词: 现浇楼板;RC框架结构;强柱弱梁;延性机制;静力弹塑性分析
英文关键词: cast-in-place slab;RC frame structure;strong column-weak beam;ductile mechanism;pushover analysis
基金项目:国家自然科学基金项目(51808087);重庆市自然科学基金项目(cstc2018jcyjAX0052);重庆市勘察设计行业创新研究与能力建设项目
作者单位E-mail
王贵珍 重庆工程职业技术学院, 重庆 402260  
周玲珑 成都大学, 四川 成都 610106  
谭潜 中机中联工程有限公司, 重庆 400039
重庆大学土木工程学院, 重庆 400045 
tanqianzl@sina.cn 
罗文文 重庆科技学院建筑工程学院, 重庆 401331  
祝飞水 金科地产集团股份有限公司, 重庆 400040  
摘要点击次数: 50
全文下载次数: 48
中文摘要:
      总结采用梁有效翼缘来考虑楼板及配筋对"强柱弱梁"机制形成的影响的实验和数值仿真研究。基于SAP2000采用三种侧向加载模式对RC框架结构不带楼板、不带楼板考虑梁刚度放大、带楼板的三个模型进行pushover分析,对力与位移的关系曲线、塑性铰的出铰顺序以及顶点位移与层间位移等方面进行探讨。结果表明:三个模型的"强柱弱梁"现象不带楼板的纯框架结构最明显,考虑梁刚度放大的模型次之,带楼板结构最不明显,证明负弯矩承载力和刚度等反映"强柱弱梁"的参数及塑性铰的出现顺序与楼板、板内配筋存在明显的对应关系;楼板及配筋影响框架结构的整体变形性能和塑性耗能能力,是抗震延性机制实现的重要影响因素。在后续的结构设计中,建议考虑实际楼板和钢筋建模进行计算分析。
英文摘要:
      The implementation premise for seismic ductility mechanism of building structures is that the basic design principles such as "strong column-weak beam" are carried out actually. In previous earthquakes, seismic damage of RC frame structures run counter to the seismic ductility mechanism. In this paper, the experiment and simulation study of the influence of slab and reinforcement on the formation of "strong column-weak beam" mechanism by using effective flange of beam were summarized. Based on SAP2000 software, pushover analysis were carried out on three models of RC frame structures, i.e., structure without floor, structure without floor but considering beam stiffness amplification, and structure with floor by using three lateral loading modes. The relationship curve of force and displacement, the order of plastic hinge, the top displacement, and inter story displacement were analyzed. The results showed that: the phenomenon of "strong column and weak beam" in pure frame structure without floor slab is the most obvious, followed by the model considering the beam stiffness amplification, and that in structure with floor slab is the least obvious. It is proved that the negative moment bearing capacity, stiffness, and other parameters reflecting "strong column and weak beam" and the occurrence order of plastic hinge have obvious corresponding relations with floor slab and in-plate reinforcement. The floor slab and reinforcement, which affect the overall deformation performance and plastic energy dissipation capacity of frame structures, are important influencing factors for the realization of seismic ductility mechanism. In subsequent structural design, it is suggested to consider the actual floor and reinforcement modeling for calculation and analysis.
查看全文   查看/发表评论  下载PDF阅读器
关闭

您是第5196423位访问者
版权所有欢迎《地震工程学报》编辑部
主管单位:中国地震局 主办单位:中国地震局兰州地震研究所
清华大学
中国地震学会
中国土木工程学会
地  址: 甘肃省兰州市东岗西路450号 邮编:730000 电话:0931-8275892 E-mail: dzgcxb2021@163.com
本系统由北京勤云科技发展有限公司设计