东南大学学报（自然科学版）2026，Vol.56Issue(6)：820-828,9.DOI:10.3969/j.issn.1001-0505.2026.06.003
波纹腹板屈曲后可替耗能梁段残余承载力研究
Study on the residual bearing capacity of replaceable energy-dissipation links after the buckling of corrugated webs
摘要
Abstract
The premature buckling of the flat steel web in the separated replaceable links is not conducive to the plastic deformation capacity of the web,and the heat effects and the presence of residual stresses after weld-ing the stiffening ribs reduce the energy-consuming capacity of the web.Therefore,in this paper,the trapezoi-dal corrugated webs with out-of-plane stiffness are introduced into the replaceable links to alleviate the unfavor-able effects of the stiffening rib welding process on their energy-consuming performance.Four test specimens are loaded in a unidirectional direction to analyze the failure modes,load-displacement curves,and web stress development of the links,and the formulas for calculating the critical buckling shear stress of corrugated webs based on the rotating stress field theory and for calculating the residual bearing capacity of the links based on the energy method are given.The results show that the corrugated web links have a good bearing capacity of up to 300.35 kN.The residual bearing capacity reaches up to 53.25%of the peak load,demonstrating replace-ability and a certain safety reserve capacity.The maximum difference between the theoretically calculated value of the critical buckling shear stress and the test value is 5.02%,and the maximum difference between the test value of the residual bearing capacity and the theoretical value is not more than 13.28%,which verifies the applicability of the given formulas.关键词
波纹腹板耗能梁段/应力分布/能量法/残余承载力/理论计算公式Key words
energy-dissipation links with corrugated webs/stress distribution/energy method/residual bear-ing capacity/theoretical formula分类
建筑与水利引用本文复制引用
殷占忠,任国超,冯大哲,朱军,朱有涛..波纹腹板屈曲后可替耗能梁段残余承载力研究[J].东南大学学报（自然科学版）,2026,56(6):820-828,9.基金项目
国家自然科学基金资助项目(51968044). （51968044）
