The structural performance of standard steel sections in long-span constructions gradually deteriorates due to wider and slighter webs that tend to buckle. This is the characteristic problem of plane webs. Corrugated steel web plates allow a considerable reduction of weight and increasing the web capacity of the beam. The experimental test results of optimal designed corrugated web beams, fortifying thin-walled steel girders without stiffeners, under load conditions, have been compared with the 3-D plane strains finite elements (FE) model in this paper. The span of fabricated corrugated web beams (CWB) is chosen as 5 m. These optimally designed CWB are exposed to a single concentrated loading, two-point loading, and partially distributed loading, respectively. The design methods for CWB are firefly optimization and hunting search algorithms. The implementation of design constraints is based on the EUROCODE, DIN, and DAST-Ri. 015 code provisions. The load-displacement curves, the residual load capacity, and the failure form of eighteen tested corrugated web beams are inquired in depth along the experimental process. The structural analysis software ANSYS is used for the simulation of the experimental study, the verification of all test results, and the investigation of the behavior of failure forms.

在大跨度结构中，标准钢型材的结构性能会逐渐变差，这是由于腹板更宽更细，容易弯曲。这是平面腹板的特征性问题。波纹钢腹板可显着减轻重量并增加梁的腹板承载能力。本文将优化设计的波纹腹板梁在没有载荷的情况下加固薄壁钢梁的试验结果与3-D平面应变有限元（FE）模型进行了比较。预制波纹腹板梁的跨度（CWB）选择为5 m。这些优化设计的CWB分别承受单个集中载荷，两点载荷和部分分布载荷。CWB的设计方法是萤火虫优化和狩猎搜索算法。设计约束的实现基于EUROCODE，DIN和DAST-Ri。015代码规定。在整个实验过程中，深入查询了十八个试验波纹腹板梁的载荷-位移曲线，残余载荷能力和破坏形式。结构分析软件ANSYS用于模拟实验研究，验证所有测试结果以及调查破坏形式的行为。