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尽管不锈钢和碳素钢的力学性能有本质区别,然而,现行规范规定不锈钢连接设计时仍基本遵循碳素钢的设计准则,仅在此基础上稍作修改。对于常见的角钢单肢与加固板连接的情况,EN1993-1-4以及SCI/欧盟不锈钢设计手册对不锈钢的设计规定,直接采用了EN1993-1-8对碳素钢净截面承载力的设计规定,且未作任何修改。对单肢与加固板采用单排螺栓连接的L型不锈钢的净截面承载力进行了研究。建立奥氏体不锈钢的数值模型,并利用现有的试验结果对其进行了验证。这些模型随后用于进行参数研究。最后,基于研究结果对L型不锈钢净截面承载力的设计方程进行了修正,并通过统计分析验证了该方程可靠性。
Although the mechanical properties of stainless steels and carbon steels are fundamentally different, however, the existing regulations stipulate that the design of stainless steels should basically follow the design guidelines of carbon steels, and only make minor modifications on this basis. For the common connection between single-angle steel and reinforced board, EN1993-1-4 and SCI / EU stainless steel design manual for stainless steel design requirements, direct use of EN1993-1-8 on the carbon steel net section bearing capacity design requirements , Without any modification. The net section bearing capacity of L-type stainless steel with single-limbs and stiffeners connected by single-row bolts was studied. The numerical model of austenitic stainless steel was established and validated with the existing test results. These models are then used to conduct parametric studies. Finally, the design equation of L-type stainless steel net section bearing capacity was modified based on the research results, and the reliability of the equation was verified by statistical analysis.