套管加强H型钢梁腹板开孔截面承载力计算  

Evaluation of load bearing capacity of H type steel beams with stub tube reinforced web opening

作　　者：杨应华[1] 吴言亮 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]河南省金华夏建工集团股份有限公司,河南周口466000

出　　处：《西安建筑科技大学学报（自然科学版）》2017年第3期332-339,368,共9页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：对套管加强梁腹板开孔梁柱节点展开的后续研究.运用ABAQUS有限元软件分析了腹板开孔梁段和套管加强H型钢梁腹板开孔梁段在弯矩、剪力及弯剪联合作用下的应力分布规律,发现套管对截面抗弯能力提高不大,但对截面抗剪承载力有大幅度的提高.文章结论给出了以开孔率和套管厚度为参数的截面抗弯、抗剪承载力公式及弯-剪相关公式.The paper is a follow-up research of reduced beam section connections with stub tube reinforced webopening. The AB-AQUS finite element software is used to analyze the static behavior of short beams with webopening and short beams with stub tube reinforced web opening, under bending, shearing and combined action. It isdemonstrated that stub tubes can significantly increase the shear resistance of the short beam, while just a littleimprovement is recorded in moment resistance. Base on the FEM results, formulas considering opening ratio andthickness of the stub tube for predicting the bending, shearing and combined strength of short beams with stub tubereinforced web opening are proposed.

关 键 词：开孔梁 抗弯承载力 抗剪承载力 弯-剪相关公式 

分 类 号：TU391[建筑科学—结构工程]