预应力混凝土开洞板的实验研究  

Experimental study on the hole slab of pre-stressed concrete

作　　者：曹霞[1] 邓宁 谢玉林[1] 金凌志[1] 

机构地区：[1]桂林工学院,广西桂林541004 [2]广西建筑科学研究设计院,广西南宁530011

出　　处：《工程建设》2010年第1期10-13,29,共5页Engineering Construction

基　　金：广西自然科学基金项目(桂科自0833255和桂科自0447095);广西建筑工程检测与试验重点实验室基金项目(桂科能07109005-16);桂林市科学研究与技术开发项目市科[2008]51号

摘　　要：采用实验和理论研究相结合的方法,通过在中部开洞板和不开洞板的对比分析,研究了无粘结预应力板在各种条件下挠度、极限承载力变化规律;并采用屈服线理论对预应力开洞板的极限承载力进行计算,得出不同开洞参数对无粘结预应力板的极限承载力的影响规律。By combining experiment with theoretical study,through compari- son analysis between hole slab and non-hole slab, the regular variations of deflections and ultimate bearing capacities of unbonded pres-stressed slab under various conditions were studied. The yield line theory was adopted to calculate the ultimate bearing capacity of pre-stressed hole slab, and the influence of different drilling hole parameters on ultimate bearing capacity of unbonded pre-stressed slab was derived.

关 键 词：无粘结预应力 开洞板 屈服线理论 极限承载力 

分 类 号：TU378.5[建筑科学—结构工程]