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Experimental investigation of damage behavior of RC frame members including non-seismically designed columns

ISSN号：1671-3664
期刊名称：《地震工程与工程振动：英文版》
时间：0
分类：TU375.4[建筑科学—结构工程] TU352.11[建筑科学—结构工程]
作者机构：[1]State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
相关基金：Supported by： National Natural Science Foundation Under Grant No. 50708081 and 90815029; Key Project of Chinese National Program for Fundamental Research and Development 2007CB714202; Innovation Program of Shanghai Municipal Education 09ZZ32 Acknowledgement The financial support from the National Natural Science Foundation of China under Grants No. 50708081 and 90815029, Key Project of Chi＇nese National Program for Fundamental Research and Development 2007CB714202, and Innovation Program of Shanghai Municipal Education 09ZZ32, are gratefully acknowledged.

作者： Chen Linzhi Lu Xilin Jiang Huanjun Zheng Jianbo[1]

关键词：钢筋混凝土框架, 地震设计, 行为, 实验, 循环荷载试验, 抗震设计规范, 纵向配筋率, 损害, reinforced concrete frame member, cyclic test, hysteresis behavior, damage behavior, seismic performance

中文摘要：

增强的水泥(RC ) 框架结构是主要普通的使用的结构的系统之一，并且他们的地震表演被柱和横梁的表演大部分决定。这篇论文描述十列和三个横梁标本的水平周期的装载测试，其中一些根据当前的地震设计代码和其它被设计，根据早非地震的中国设计代码被设计，瞄准报导在 Wenchuan 地震期间观察的损坏或崩溃的 RC 框架 strctures 的行为。轴的负担比率的效果，砍跨度比率，和磁滞现象行为，韧性和损坏进步上的横向、纵的加强比率在试验性的学习被合并。测试结果显示 non-seismically 设计的列出现早熟砍失败，和收益更大的最大的剩余裂缝宽度和更多水泥 spalling 与地震联盟者设计列比。另外，纵的钢加强美国南北战争时南军士兵艺术严重地被弄弯。轴的负担比率并且砍证明是当纵的加强比率在柱韧性上有仅仅次要的效果，但是在横梁韧性上展出了更多的影响时，影响韧性，裂缝开始宽度和关门能力的最重要的因素的跨度比率。最后，横向的加强比率没影响最大的剩余裂缝宽度，地震联盟者的关门能力设计列。

英文摘要：

Reinforced concrete （RC） frame structures are one of the mostly common used structural systems, and their seismic performance is largely determined by the performance of columns and beams. This paper describes horizontal cyclic loading tests often column and three beam specimens, some of which were designed according to the current seismic design code and others were designed according to the early non-seismic Chinese design code, aiming at reporting the behavior of the damaged or collapsed RC frame strctures observed during the Wenchuan earthquake. The effects of axial load ratio, shear span ratio, and transverse and longitudinal reinforcement ratio on hysteresis behavior, ductility and damage progress were incorporated in the experimental study. Test results indicate that the non-seismically designed columns show premature shear failure, and yield larger maximum residual crack widths and more concrete spalling than the seismically designed columns. In addition, longitudinal steel reinforcement rebars were severely buckled. The axial load ratio and shear span ratio proved to be the most important factors affecting the ductility, crack opening width and closing ability, while the longitudinal reinforcement ratio had only a minor effect on column ductility, but exhibited more influence on beam ductility. Finally, the transverse reinforcement ratio did not influence the maximum residual crack width and closing ability of the seismically designed columns.

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