摘要
本本根据１２根先张法部分预应力混凝土梁的试验结果，研究了部分预应力混凝土梁的裂缝闭合性能．提出裂缝闭合标准．分析了影响裂缝闭合的主要因素，建立起裂缝闭合模型．并约制程序进行了非线性全过程分析．分析计算了裂缝闭合弯矩．计算值与实测值吻合良好．
Based on the test results of 12 partially prestressed concrete beams, the crack closing charactistics is studied. A criterion of crack closing is given, and the main factors which affect crack closing are analyzed, a calculation model is founded and the program of the whole process of nonlinear analysis is drawn up, and the crack closing moment is calculated. The calculation results are quite close to the tests values.
出处
《工业建筑》
CSCD
北大核心
1995年第12期9-14,28,共7页
Industrial Construction
基金
国家自然科学基金
关键词
预应力混凝土
梁
裂缝
闭合
试验
partially prestressed concrete
crack closing
effect of cracked surface
moment of crack closing
