摘要
在装配式建筑中目前普遍采用的现浇梁柱节点施工难度大、施工周期长。本文提出了牛腿支撑加高强螺栓连接的干式连接梁柱节点。对实验模型施加低周复荷载,研究节点抗震破坏特征;进行数值分析研究节点的性能;考虑耗能减震技术对抗震性的提升。研究表明:本实验塑性铰出现在梁上,延性系数较好,抗震性能优于现浇节点。在牛腿上设置抗震阻尼器,数值分析表明,增加阻尼器可以形成耗能节点与装配式框架结构形成三道抗震防线,通过减震把“强节点”设计引向深入。
At present,the cast-in-place beam-column joints which are widely used in prefabricated buildings,are difficult to construct and have a long construction period.In this paper,a beam-column joint of dry connection with corbel support and high strength bolt connection is proposed.The low cycle complex load is applied to the experimental model to study the seismic failure characteristics of the joint;the numerical analysis is carried out to study the performance of the joint;the improvement of the seismic resistance of the energy dissipation and damping technology is considered.The results show that the plastic hinge appears on the beam in this experiment has better ductility coefficient and better seismic performance than cast-in-place joint.The numerical analysis shows that adding the damper can form energy dissipation joints which forms three seismic defense lines with the fabricated frame structure,and the design of"strong-joint"can be deepened through damping.
作者
丁克伟
李兴龙
韩苗兰
Ding Kewei;Li Xinglong;Han Miaolan(College of Civil Engineering,Anhui University of Architecture,Hefei 230601,China)
出处
《土木建筑工程信息技术》
2021年第3期165-171,共7页
Journal of Information Technology in Civil Engineering and Architecture
基金
国家十三五重点研发计划子课题——高变形能力装配式节点的形式,受力性能及设计方法(编号:2016YFC0701507-2)
国家自然科学基金(编号:11472005)。
关键词
装配式建筑
干式连接
抗震
耗能减震
强节点
Prefabricated Building
Dry Connection
Aseismic
Energy Dissipation
Strong Joint
