波纹腹板H型钢梁顶底角钢半刚性节点研究

运用有限元软件ANSYS对波纹腹板H型钢梁顶底角钢半刚性节点进行静力荷载下的数值模拟,分析不同角钢厚度和梁高对半刚性节点受力性能的影响。结果表明:增加角钢的厚度,节点的初始转动刚度和抗弯承载力呈增长的趋势,但随着进入塑性变形阶段其增幅逐渐减小,当角钢的厚度增加到一定的程度时,对节点的初始转动刚度和抗弯承载力影响不大;增加角钢的厚度,节点的延性会降低;增加梁截面高度可以有效的提高节点的初始转动刚度及抗弯承载能力。

Study of semi-rigid angle connections of H-beams with corrugated webs

In order to study the mechanical performance of semi-rigid angle connections of H-beams with corrugated webs, semi-rigid angle connections were simulated under the static loading with the finite element software ANSYS. With different angle thickness and different height of the H-beams with corrugated web, we can obtain the moment-rotation curve and stress cloud pictures, then analyze the influence of the angle thickness and the height of the H-beams with corrugated web to the behaviors of the connections. Results show that increasing the thickness of the angle, the initial rotational stiffness and bending capacity of connections have a growing trend, but the growth rate decreases, When the thickness of the angle increases to a certain extent, the influence is little; Increasing the thickness of the angle, the ductility of the connection will reduce; Increase of beam section height can effectively improve the connection initial rotational stiffness and bending capacity.