| 火灾后钢筋混凝土异形板的极限均布荷载 |
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| 引用本文： | 董毓利,王清安.火灾后钢筋混凝土异形板的极限均布荷载[J].力学与实践,1998,20(4):53-55. |
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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; 中国科学技术大学火灾科学国家重点实验室; 合肥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： | 博士后基金,冶金部有偿基金 |
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| 摘 要： | 本文基于塑性铰线理论确定了钢筋混凝土异形板的破坏机构，并利用有限差分法计算了火灾时板内的温度场，根据高温后钢筋和混凝土的力学性能对塑性铰线截面的弯矩及灾后极限均布荷载进行了分析，为钢筋混凝土板火灾后的评估和维修提供依据．
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| 关 键 词： | 火灾 钢筋混凝土异形板 塑性铰线 极限均布荷载 |
| 收稿时间： | 2006-08-01 |
LIMIT ANALYSIS OF SPECIAL SHAPE REINFORCED CONCRETE SLAB UNDER UNIFORMLY DISTRIBUTED LOADING AFTER FIRE |
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| DONG Yuli,WANG Qingan,FAN Weicheng.LIMIT ANALYSIS OF SPECIAL SHAPE REINFORCED CONCRETE SLAB UNDER UNIFORMLY DISTRIBUTED LOADING AFTER FIRE[J].Mechanics and Engineering,1998,20(4):53-55. |
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| Authors: | DONG Yuli WANG Qingan FAN Weicheng |
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| Abstract: | In this paper,the failure mechanism of a special shape reinforced concrete slab under uniformly distributed loading,was established based on the plastic hinge line theory,and the temperature field in slab was determined by using the finite difference method.Considering the change of mechanical behavior of concrete and steel bars after elevated temperature,the section moment of plastic hinge line and the limit uniformly distributed loading were analyzed. |
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| Keywords: | after elevated temperature special shape reinforced slab plastic hinge line limit uniformly distributed loading |
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