An experimental study of a different-connection-strength column-tree moment-resisting frame structure

被引：0
|
作者：
Zhang Y. [1 ]
Li Q. [1 ]
He R. [1 ]
机构：
[1] Structure Engineering Key Laboratory of Jiangsu Province, Suzhou University of Science and Technology, Suzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 04期
关键词：
Column-tree moment-resisting frame structure; Experimental study; High strength bolts; Hysteretic behavior; Splice joints;
D O I：
10.13465/j.cnki.jvs.2022.04.027
中图分类号：
学科分类号：
摘要：
This work aims to study the seismic performance of a column-tree moment-resisting frame structure with beam splice joints using high strength bolts. According to different design methods, three half-story column-tree moment-resisting frame specimens were designed and tested under cyclic loading. Hysteretic behavior, strain distribution, rotation capacity, energy of dissipation factor, and stiffness were studied according to analysis of experimental phenomena. Comparative analysis shows that steel frame designing using equal strength method has large rigidity and poor ductility. Plastic hinge forms at beam end. Cacks may develop at beam-to column welding joint. The phenomenon of high strength bolt sliding appeared early in frame with weakened splice joints. Steel frame ductility and rotation capacity were improved. The yielding at beam end was delayed. Yield load was decreased but ultimate load carry capacity was not affected. The seismic performance of column-tree moment-resisting frame structure designed using actual internal force method is the best. Based on these results, proposal of designing beam splicing joints of column-tree moment-resisting frame structures using actual internal force and setting the location of splice joint near to beam-to column welding was provided. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：209 / 216and261
相关论文
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