建筑钢结构进展2024，Vol.26Issue(2)：76-82,7.DOI:10.13969/j.cnki.cn31-1893.2024.02.008
压型钢板局部削弱后抗弯性能试验研究
Experimental Study on the Bending Behavior of Profiled Steel Sheets Following Local Weakening
徐强 1徐丽萍 1孟令辉 1王明 1李娜2
作者信息
- 1. 聊城大学建筑工程学院,山东聊城 252059
- 2. 塔里木职业技术学院智能工程学院,新疆阿拉尔 843300
- 折叠
摘要
Abstract
The vertical and horizontal directions of profiled steel sheets are weakened to various extent,in order to study the bending performance of profiled steel sheets that can be used as load-bearing members in composite floors after local weakening.After the weakening,the steel sheets are subjected to bending tests without lateral restraint to study the bending performance of profiled steel sheets after weakening and their failure modes.The test results show that each group of profiled steel sheets fail mostly due to mid-span flexural buckling failure under uniform load.The horizontal hole reduces the bearing capacity of top flange of steel sheet.The specimen's ability to withstand bending drops by around 15％when the horizontal hole's radius is 20 mm.Additionally,the vertical opening can prevent the upper and lower flanges of steel sheet from transferring stress.The bending capacity of the specimens can be reduced by around 10％when the radius of vertical opening reaches 25 mm.The comparison shows that vertical weakening has a more impact to the bearing capacity than horizontal weakening.关键词
压型钢板/局部削弱/受弯性能/荷载-挠度曲线/荷载-应变曲线Key words
profiled steel sheet/local weakening/flexural performance/load-deflection curve/load-strain curve分类
建筑与水利引用本文复制引用
徐强,徐丽萍,孟令辉,王明,李娜..压型钢板局部削弱后抗弯性能试验研究[J].建筑钢结构进展,2024,26(2):76-82,7.
