|本期目录/Table of Contents|

[1]董毓利.火灾时钢筋混凝土板的承载力计算[J].建筑科学与工程学报,2009,26(04):14-23.
　DONG Yu-li.Calculation of Bearing Capacity of RC Concrete Slabs in Fire[J].Journal of Architecture and Civil Engineering,2009,26(04):14-23.
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火灾时钢筋混凝土板的承载力计算(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年04期
页码:
14-23
栏目:
出版日期:
2009-12-20

文章信息/Info

Title:
Calculation of Bearing Capacity of RC Concrete Slabs in Fire
作者:
董毓利
哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090
Author(s):
DONG Yu-li
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China
关键词:
钢筋混凝土板;  板块平衡法;  虚功法;  极限承载力;  塑性铰线;  高温;  火灾
Keywords:
reinforced concrete slab;  segment equilibrium method;  energy-based method;  limit bearing capacity;  yield hinge line;  elevated temperature;  fire
分类号:
TU375.2
DOI:
-
文献标志码:
A
摘要:
提出了2种能考虑火灾时钢筋混凝土板薄膜效应的极限承载力计算方法。在塑性铰线理论的基础上,利用板块平衡法和虚功法对火灾时钢筋混凝土板的承载力进行了计算,并将计算结果与试验结果进行了对比。结果表明:承载力计算结果与试验结果吻合良好; 提出的方法适用于各向同性和各向异性配筋的方形板和矩形板; 采用该方法可以解释相同条件下方形板和矩形板产生的破坏挠度不同的原因。
Abstract:
Two methods which could consider tensile membrane action were offered to calculate the limit bearing capacity of reinforced concrete slabs in fire conditions. Based on yield hinge line theory, the bearing capacity of reinforced concrete slabs in fire conditions was calculated by using segment equilibrium method and energy-based method. The comparison of calculated results and test results was carried out. The results show that the methods can be applied to sqaure slabs and rectangular slabs with orthotropic and isotropic renforcement. The models can interpret why the difference between sqaure slabs and rectangular slabs exists under the same condition.

参考文献/References:

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相似文献/References:

[1]魏巍巍,贡金鑫,田磊.钢筋混凝土板受冲切承载力对比分析[J].建筑科学与工程学报,2010,27(04):44.
　WEI Wei-wei,GONG Jin-xin,TIAN Lei.Comparative Analysis of Punching Shear Capacity for Reinforced Concrete Slabs[J].Journal of Architecture and Civil Engineering,2010,27(04):44.

备注/Memo

备注/Memo:
收稿日期:2009-09-02
基金项目:“十一五”国家科技支撑计划项目(2006BAJ13B03); 国家自然科学基金项目(50878069)
作者简介:董毓利(1965-),男,江苏赣榆人,教授,博士研究生导师,工学博士,博士后,E-mail:dongyl@hit.edu.cn。
更新日期/Last Update: 2009-12-20