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带加劲肋焊接空心球节点足尺试验研究
引用本文:林成乐,余江滔,李文强.带加劲肋焊接空心球节点足尺试验研究[J].建筑技术,2010,41(2):157-161.
作者姓名:林成乐  余江滔  李文强
作者单位:1. 同济大学结构工程与防灾研究所,200092,上海
2. 青岛国信体育产业发展有限公司,266000,山东青岛
摘    要:为满足某体育场馆钢结构屋盖设计需要,对屋盖的带加劲肋焊接空心球节点(共12个)进行轴向拉、压足尺模型试验和分析。通过试验研究,得到加载过程中节点球身和钢管表面各测点的应变与荷载的关系。通过分析大直径球节点钢管和钢球的受力变形状态,提出该类节点受力明显变化的四个阶段,对该类节点的安全性和承载力富余度进行评价,将试验值和规范规定的承载力计算值进行比较,并对规范推荐的承载力计算公式提出了有效建议。

关 键 词:加劲肋  焊接空心球节点  圆形钢管  承载力富余度  试验研究

RESEARCH ON FULL SCALE TEST OF WELDED HOLLOW BALL NODE WITH RIBBED STIFFER
LIN Cheng-le,YU Jiang-tao,LI Wen-qiang.RESEARCH ON FULL SCALE TEST OF WELDED HOLLOW BALL NODE WITH RIBBED STIFFER[J].Architecture Technology,2010,41(2):157-161.
Authors:LIN Cheng-le  YU Jiang-tao  LI Wen-qiang
Affiliation:1.Research Institute of Structural Engineering and Disaster Reduction/a>;Tongji University/a>;200092/a>;Shanghai/a>;China/a>;2.Qingdao Guoxin Sports Industry Developing Co./a>;Ltd./a>;266000/a>;Qingdao/a>;Shandong/a>;China
Abstract:In order to satisfy the steel structure roof design requirements of a stadium,axial full scale model pulling and pressing tests and analysis are carried out for welded hollow ball nodes(12 in total) with ribbed stiffener of roof.After tests and research,the relation between strain and load of each testing points on the node ball and steel pipe surface is obtained during the loading process.Through analysis on stress deformation state of large-diameter ball node steel pipe and steel ball,four phases at which...
Keywords:ribbed stiffener  welded hollow ball node  round steel pipe  bearing capacity allowance  test and research  
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