考虑承台刚域的基础梁受力分析  

Analysis on Foundation Beams Considering Rigid Zone of Pile Caps

作　　者：邹翾[1] 姜文辉[2] 巢斯[2] 

机构地区：[1]上海建桥学院,201319 [2]同济大学建筑设计研究院,上海200092

出　　处：《建筑结构》2007年第11期31-32,62,共3页Building Structure

摘　　要：在考虑地下室基础承台刚域及抗拔桩布置的情况下,对基础梁的弯矩计算进行分析推导,得出了跨中弯矩的折减系数计算公式。通过实际工程的算例分析,采用简化计算得出四桩至六桩承台不同跨度、不同桩径的折减系数,从中可以看出,考虑承台和桩的作用能够降低基础梁高度及减少配筋,做到设计上的经济合理,从而节约了工程造价。Moments on basement foundation beams considering rigid zone of pile caps and pulling resistance of piles are analyzed. Reduction factor of midspan moment is gained. A practical project is cited and a reduction factor table about various beam spans and pile diameters of 4-pile to 6-pile caps is listed to show that considering the action of pile caps can reduce beam depth and reinforcement, thereby saving construction cost.

关 键 词：基础梁 承台 刚域 承载力 

分 类 号：TU753.2[建筑科学—建筑技术科学]