【摘要】 《钢结构设计规范》(GB5 0 0 1 7— 2 0 0 3 )放宽了热轧剖分T型钢压杆腹板高厚比限值 ,促进了剖分T型钢的推广使用。对剖分T型钢压杆腹板局部屈曲进行了理论分析、试验研究及非线性有限元计算。在试验及分析结果的基础上 ,提出了腹板高厚比限值简化计算公式并对规范公式进行了验证。更多还原

【Abstract】 The width-thickness limit of T-section strut prescribed in the code for design of steel structure (GB50017—2003) is broadened so as to promote the using of the hot-rolled cut T-section strut. In order to discuss the wed local buckling of cut-T struts, the theoretical analysis, experimental research and nonlinear finite element calculations were made. Based on the experimental and analytical results, the simplified formula of width-thickness limit for web is presented and the formula provided by design code is testified.更多还原