矩形管翼缘开孔波纹腹板钢梁抗剪性能试验研究  

Experiment on Shear Behavior of Perforated Corrugated Web Girders with Rectangular Tubular Flange

作　　者：曹艺濒 蒲万丽[1] 邵永波[1] 邓皓 黄超[1] CAO Yibin;PU Wanli;SHAO Yongbo;DENG Hao;HUANG Chao(School of Civil Engineering and Geomatics,Southwest Petroleum University,Chengdu 610500,China;School of Architectural Engineering,Sichuan University of Arts and Science,Dazhou 635000,China)

机构地区：[1]西南石油大学土木工程与测绘学院,成都610500 [2]四川文理学院建筑工程学院,四川达州635000

出　　处：《建筑钢结构进展》2024年第12期95-107,共13页Progress in Steel Building Structures

摘　　要：为研究矩形管翼缘开孔波纹腹板钢梁的抗剪性能,设计完成了4个试件的受剪试验。通过分析试件的破坏模式、荷载-位移曲线和关键区域的应变发展规律,研究了试件的抗剪性能、极限承载力及波纹腹板在开孔后分担的剪力比例。利用ABAQUS软件进行了数值模拟,并将模拟结果与试验结果进行对比,验证了有限元模型的准确性。研究了腹板几何初始缺陷和开孔偏移对抗剪承载力的影响。结果表明:矩形管翼缘开孔波纹腹板梁具有较好的延性性能,其抗剪承载力会随着开孔孔径的增大而降低,腹板波纹越密集,抗剪承载力越高;开孔横向偏移对抗剪承载力的影响不明显;提出了针对该梁的波纹腹板剪力分配比例近似计算公式;腹板的几何初始缺陷对抗剪承载力的影响可忽略不计。To investigate the shear behavior of opening corrugated web girders with rectangular tubular flange,shear tests of four specimens were designed and conducted.The shear behavior,ultimate loading capacity and shear distribution ratio of corrugated web with opening to the whole cross-section were investigated by analyzing failure modes,load-displacement curves and strain development law in critical regions of specimens.Numerical simulations were conducted using ABAQUS software,and the simulation results were compared with the experimental results to verify the accuracy of the finite element model.The effects of geometric initial imperfection in the web and the eccentricity of opening on shear capacity were investigated.The results show that the girder has better ductility and shear capacity of the girder will decrease as the increase of opening diameter,while it will increase as the density of web corrugation increase.The lateral eccentricity of opening does not have a significant effect on the shear capacity of the girder.An approximate formula for calculating the shear distribution ratio of the girder is recommended.The geometrical initial imperfection of corrugated web has a negligible effect on the shear capacity of the girder.

关 键 词：矩形管翼缘 开孔 波纹腹板 抗剪承载力 试验研究 

分 类 号：TU391[建筑科学—结构工程]