| 用全塑性分析法求双向板的极限荷载 |
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| 引用本文： | 王勇. 用全塑性分析法求双向板的极限荷载[J]. 中国石油大学学报(自然科学版), 1992, 0(6) |
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| 作者姓名： | 王勇 |
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| 作者单位： | 石油大学勘探系 |
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| 摘 要： | 双向板按全塑性分析求极限荷载,是钢筋混凝土结构教学中的一项重要内容.通常是按虚功法或板块极限平衡法推导极限荷载公式.虚功法是常用的方法.该方法的关键步骤是求各塑性铰线极限弯矩在假定虚位移下所作的内功,其中对于板缺的相对转角有多种求法.本文通过求斜铰线相邻扳块的相对转角来求斜铰线极限弯矩在给定虚位移下作的内功,使极限荷载公式的推导思路清晰、易于理解.
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| 关 键 词： | 双向板 极限荷载 塑性铰线 |
PLASTIC ANALYSIS FOR CALCULATING ULTIMATE LOAD OF TWO-WAY SLABS |
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| Wang Yong. PLASTIC ANALYSIS FOR CALCULATING ULTIMATE LOAD OF TWO-WAY SLABS[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1992, 0(6) |
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| Authors: | Wang Yong |
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| Affiliation: | Dept. of Petroleum Exploration |
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| Abstract: | The calculation of the ultimate load of two-way slabs with the plastic analysis method is important in teaching reinforced concrete structure. Usually virtual work or limit balanced plates are used to derive the ultimate load formulae for slabs. The method of virtual work is in common use. The key step of itis to calculate the internal virtual work performed by the ultimate bending moment of each yield line when the slabs are deformed virtually. The internal virtual work performed by the ultimate bending moment of the inclined yield line can be calculated by finding the relative rotation between two plates being linked by the inclined yield line. |
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| Keywords: | 0Two-way slab: Ultimate load: Yield line |
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