摘要
针对既有网架结构下弦受拉球节点加固问题,提出一种基于临杆焊接托板的加固方法。该方法综合考虑了受拉球节点与杆件的材质、空间结构以及尺度效应的影响,通过将球节点周围相邻杆件焊接托板进行加固,使得该方法便于施工,且能够普遍适用于各类受拉球节点的加固工程,并通过模型试验验证和仿真研究,焊接托板后的节点域承载能力大幅提升,加固效果良好,为既有网架受拉球节点加固提供了新思路。
The method of welded steel support plates to adjacent rods is proposed to reinforce the tensile spherical nodes of grid structures.The method comprehensively considers the material,space structure and scale effect of bolted spherical nodes and members,Because the support plates are welded to adjacent rods of bolted spherical nodes,this method is easy to operate and can be widely applied to reinforcement projects of various tensile spherical nodes.Through simulation and experimental verification,the bearing capacity of the node domain after welding support plates is greatly improved,which can achieve a good reinforcement effect.This method provides a new idea for the reinforcement of tensile spherical joints.
作者
张彦龙
李华峰
郭瑞顺
马志斌
闫俊男
康艳博
刘浩东
李孟青
Zhang Yan-long;Li Hua-feng;Guo Rui-shun;Ma Zhi-bin;Yan Jun-nan;Kang Yan-bo;Liu Hao-dong;Li Meng-qing(Machinery Industry Ninth Design and Research Institute Co.Ltd,Changchun 130062,China;China Academy of Building Research,Beijing 100013,China)
出处
《工程抗震与加固改造》
北大核心
2024年第2期146-151,共6页
Earthquake Resistant Engineering and Retrofitting
关键词
受拉球节点
托板
临杆焊接
节点域
tensile spherical node
steel support plate
spherical node strengthened by welding steel plates to adjacent rods
node domain
