Realization of the global yield mechanism of RC frame structures by redesigning the columns using column tree method

作     者：BAI JiuLin OU JinPing 

作者机构：School of Civil Engineering Harbin Institute of Technology Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology)Ministry of Education 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51261120376 and 91315301) Scholarship Award for Excellent Doctoral Student granted by Ministry of Education of China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2015年第58卷第10期

页      码：1627-1637页

摘      要：Global failure mechanism, i.e., the strong-column weak-beam mechanism, can provide higher total energy dissipation capacity with less ductility demand on components than other failure modes, and results in a more uniform story drift distribution and higher resistance to earthquake loads at the system level. However, the current code-based elastic design method cannot guarantee the global failure mechanism of frame structures under severe earthquakes. In this paper, a simple, but practical design procedure is proposed to ensure the global failure mechanism of reinforced concrete(RC) frame structures by redesigning the columns using the column tree method(CTM). CTM considers the yield limit state of all beams and column bases. The code-based design is firstly carried out to determine the section information of all beams and base columns. Then, the internal force demands applied on the column tree can be derived. Lastly, the column moments, shear forces and axial forces are determined according to the free-body diagram of CTM to finish the column redesign. Two RC frame structures with 6 and 12 stories are illustrated to verify the design procedure. The analytical results demonstrate the proposed approach can realize the global failure mechanism.

主 题 词：钢筋混凝土框架结构 破坏机制 设计方法 屈服 强柱弱梁 故障模式 设计过程 失效机理 

学科分类：0810[工学-土木类] 08[工学] 081402[081402] 080104[080104] 081304[081304] 0815[工学-矿业类] 0805[工学-能源动力学] 0813[工学-化工与制药类] 0814[工学-地质类] 0702[理学-物理学类] 0812[工学-测绘类] 0801[工学-力学类] 

核心收录：

D　O　I：10.1007/s11431-015-5875-3

馆 藏 号：203228330...