钢筋混凝土框架结构梁端受弯承载力放大系数研究

吴二军; 闫微

doi:10.13204/j.gyjz201012011

钢筋混凝土框架结构梁端受弯承载力放大系数研究

doi: 10.13204/j.gyjz201012011

吴二军,
闫微

1.
河海大学土木与交通学院,南京210098

详细信息

作者简介:
吴二军，男，1972年出生，博士，副教授。E－mail:wej@hhu.edu.cn

中图分类号: TU375.4
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- 文章访问数: 79
- HTML全文浏览量: 6
- PDF下载量: 110
- 被引次数: 0
出版历程
- 收稿日期: 2010-03-29
- 刊出日期: 2010-12-20

STUDY ON MAGNIFICATION COEFFICIENT OF BEAM MOMENT IN REINFORCED CONCRETE FRAME

Wu Erjun,
Yan Wei

1.
College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China

摘要

摘要: 现行规范通过设定柱端弯矩增大系数来实现钢筋混凝土框架结构强柱弱梁的破坏机制，实际工程中梁端的实际受弯承载力往往大于设计弯矩，其增大系数可能超过规范规定的柱端弯矩增大系数，导致地震发生时出现柱铰破坏机制。通过分析梁中受压钢筋和梁侧现浇板内配筋对受弯承载力的影响，计算出梁端受弯承载力放大系数，并与规范规定的柱端弯矩增大系数进行对比，针对柱端弯矩增大系数提出设计建议。
- 钢筋混凝土 /
- 框架结构 /
- 受弯承载力 /
- 强柱弱梁 /
- 设计 /
- 弯矩增大系数
Abstract: In current design codes,column moment magnification coefficient is provided for in accord with the fundamental law of strong column-weak beam of reinforced concrete structure.However,in actual projects,the real beam moment is usually larger than the designed moment,and the magnification coefficient of beam moment may be larger than that of column moment in code,which results in column-hinge failure mechanism when an earthquake occurs.The effects of the pressed reinforcing bars in beams and bars in concrete slabs were analyzed on flexural bearing capacity,the beam moment magnification coefficicent was calculated and compared with that of column moment.The discussion on column moment magnification coefficient was carried out and some advices were put forward.
- reinforced concrete /
- frame /
- flexural capacity /
- strong column-weak beam /
- design /
- moment magnification coefficient

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参考文献(9)

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