| 火灾中均布荷载作用下钢筋混凝土方板的极限分析 |
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| 引用本文： | 董毓利,王清安.火灾中均布荷载作用下钢筋混凝土方板的极限分析[J].自然灾害学报,1997,6(4):18-22. |
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| 作者姓名： | 董毓利 王清安 |
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| 作者单位： | 中国科学技术大学火灾科学国家重点实验室 |
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| 基金项目： | 中国科技大学博士后基金 |
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| 摘 要： | 本文利用有限差分法确定了火灾时钢筋混凝土板的温度分布，并基于塑性铰线理论确定了火灾时钢筋混凝土方板的破坏机制，根据高温下混凝土和钢筋的力学性能对火灾过程中塑性铰截面的弯矩及板的极限荷载进行了分析，可为建筑结构的耐火设计提供依据。
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| 关 键 词： | 火灾 钢筋混凝土板 塑性铰线 极限荷载 |
LIMIT ANALYSIS OF SQUARE REINFORCED CONCRETE SLAB UNDER UNIFORM LOADING IN FIRE |
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| Dong Yuli,Wang Qingan,Fan Weicheng.LIMIT ANALYSIS OF SQUARE REINFORCED CONCRETE SLAB UNDER UNIFORM LOADING IN FIRE[J].Journal of Natural Disasters,1997,6(4):18-22. |
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| Authors: | Dong Yuli Wang Qingan Fan Weicheng |
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| Abstract: | In this paper,the temperature distribution in reinforced concrete slab in fire is determined by finite difference method and the failure mechanism of square reinforced concrete slab under uniform loading in fire is given based on plastic hinge line theory.By using the constitutive relationship of steel bar and concrete at high temperature,the plastic hinge section moment and slab limit loading are analyzed. |
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| Keywords: | Fire Reinforced concrete slab Plastic hinge line Limit loading |
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