钢梁开孔后孔边加劲肋的简化

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Simplified Stiffening of Web-Opening Beams

Institute of High Performance Structures, Zhejiang University, Hangzhou 310058, China

摘要: 介绍了国外钢梁腹板开孔加劲的方式。提出了开孔后强度计算要求,仅水平加劲时加劲肋外伸的长度要求,未加劲时需要进行的宽厚比要求,以及开孔引起的挠度增量计算公式。
- 钢梁 /
- 腹板开孔 /
- 加劲肋 /
- 局部稳定 /
- 挠度
Abstract: Simple stiffening of web opening in Europe was introduced. Strength check required after web opening was pointed out, the anchorage length of horizontal stiffeners was recommended, the width-to-thickness limit was proposed when the opening was un-stiffended, and equation for incremental deflection due to web opening was put forward.
- beam /
- web opening /
- stiffening /
- web buckling /
- deflection

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[2]	朱群红,童济,童根树. 钢梁开孔的影响分析及其设计建议[J]. 工业建筑,2022,52(1):90-97.
[3]	童根树. 钢结构与钢-混凝土组合结构设计方法[M]. 北京:中国建筑工业出版社,2022.