无粘结部分预应力高强混凝土梁正截面承载力计算  

Calculation of normal section strength of unbonded partially prestressed concrete beams with high strength concrete

作　　者：宋永发[1] 王清湘[1] 

机构地区：[1]大连理工大学土木工程系

出　　处：《大连理工大学学报》1996年第2期224-229,共6页Journal of Dalian University of Technology

基　　金：海岸及近海工程国家重点实验室基金

摘　　要：通过１５根无粘结部分预应力高强混凝土梁的试验研究，探讨了配筋特征参数β０和跨高比ｌ／ｈ对预应力增量和极限承载力的影响．给出了无粘结部分预应力高强混凝土梁正截面承载力计算的两种方法，计算结果与实验结果符合较好．Based on the experimental research on 15 unbonded partially prestressed concrete (PPC) beams with high strength concrete, the effects of β0 and ratio l/h (beam span to depth)upon the increment of the prestress and ultimate strength are studied. The two calculating methods for normal section strength of unbonded partially prestressed concrete beams with high strength concrete are given, and agree well with experimental results.

关 键 词：梁 高强混凝土 正截面承载力 预应力混凝土 

分 类 号：TU378.202[建筑科学—结构工程]