文章摘要
引用本文:郑建岚,郑作樵.钢筋混凝土板柱体系的承载力计算[J].福州大学学报(自然科学版),1994,(5):79~83
钢筋混凝土板柱体系的承载力计算
The Carrying Capacity of Reinforced Concrete Slabs under Concentrated Load
  
DOI:
中文关键词: 抗弯强度,冲切强度,钢筋砼板,配筋率
英文关键词: bending strength,punching strength,reinforced concrete slab,atio of reinforcement,
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作者单位
郑建岚,郑作樵 福州大学土木建筑系 
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中文摘要:
      集中力作用下钢筋砼板的承载力取决于板的抗弯强度与冲切强度。本文通过分析弯曲破坏与冲切破坏的机理及其相互影响,得到了:当uf_y等于(uf_y) ̄0时,弯曲破坏与冲切破坏将同时发生;当uf_y小于(uf_y)0时,板的承载力取决于抗弯强度,增大配筋率能提高板的承载力。当uf_y大于(uf_y)0时,板的承载力取决于冲切强度,尽管配筋率小于u_(max),但配筋率的增大对板的承载力没有影响或影响不大。本文以表格形式提出了钢筋砼板承载力的耦合计算法,其特点是进行一次计算能同时满足抗弯强度与冲切强度的要求,为工程设计人员提供一种较简便的设计方法。
英文摘要:
      The carrying capacity of a reinforced concrete slab under concentrated load depends on its bending strength and punching strength.By analysing the failure mechanism of bend and punch, it has been obtained that when(uf_y) is equal to (uf_y)0,bending failure and punching failure will occur simultaneously.When(uf_y) is smaller than (uf_y)0,the carrying capacity will depend on bending strength only,and the carrying capacity will increase with the increase in the ratio of reinforcement.When (uf_y) is larger than(uf_y)0,the carrying capacity will depend on punching strength only.Although the ratio of reinforcement is smaller than u_(max),its increment has little influence on the carrying capacity.A calculating method of carrying capacity of slabs is presented.The bending and punching strength are acquired simultaneously by this calculating method which provides a simple designing method for the designer.
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