施工技术 2010年9月 114 CONSTRUCTION TECHNOLOGY 第39卷第9期 单层柱面网壳铸钢节点承载力试验研究 丁娟 (银川市规划建筑设计研究院有限公司，宁夏银川750001) [描要]对单展柱面网壳样形面精钢节点进行承载力试验研究，考察次梁是加对精钢节点强度和刚度的 影响.采用ANSYS程序中Solid45单元进行有限元分析，在破怀膜式、变形边程及节点承我力方面与试传果进行 对比分析.试验结果与数值传果喻合转好，说明了有限元分析的可行性.试验表明，未经加圈的节点在1.0倍设 计荷载作用下开屈服，2.0倍设计载作用下节点域大面积居服，不适宜健承荷我：加圈的节点在2.0倍设 计荷载作用下基本处子弹性状态，并且加固后节点刚度有大提高. [关键词]精钢节点：加劲肠：强度：刚度：试验研究 [中图分类号]TU758.1 [文献标识]A[文章编号]1002-8498(2010)09-0114-04 Experimental Study on Bearing Capacity of Cast Steel Joints in a Single-Hayer Cylindrical Reticulated Shell Ding Juan (Yinchuan Architecture Plan Design Institute Co.Lad.Yinchuan Ningxia 750001 China) Abstract:Experimental study has been carried out on cast steel joints with trapezoidal cross-section of a singleHlayer cylindrical reticulated shell.Different joints of secondary beams with or without stiffener have been studied as influence factors.The author employs nonlinear finite element method with eight nodes solid element in ANSYS program to examine the mechanical behavior of joints.Solid FEM is validated as an efficient method of predicting ultimate bearing capacity of the joints through paring failure modes deformation process and the ultimate bearing capacity with test results.The results show that the joints without stiffener begin to yield at the main beam web under 1.0 time of the design load.A large area of joint region is found yielding under 2.0 times of design load and the joint is not appropriate to continue to bear the load.The joint with stiffener is i...
单层柱面网壳铸钢节点承载力试验研究.pdf
