摘要
为了了解锈后预应力混凝土梁各个部位的力学性能,通过对受损梁体内控制截面混凝土、普通钢筋、预应力钢筋的荷载-应力应变时程曲线分析,充分考虑混凝土裂缝发生后结构的应力重分布现象,得到了梁体由于耐久性引起的损伤对梁体极限承载力的影响.
In order to understand the rust after prestressed concrete beam , the mechanical properties of different parts , the damaged beam control section , and the load -time history curve of stress and strain of the prestressed reinforced concrete were analyzed .According to the structure stress redistribution after the occurrence of concrete crack phenomenon , the durability damage on the ultimate bearing capacity of beam body was ob-tained.
出处
《佳木斯大学学报(自然科学版)》
CAS
2014年第3期373-376,共4页
Journal of Jiamusi University:Natural Science Edition
基金
宁波市交通运输委员会科技项目(201109)
浙江省交通厅科技计划项目(2012H58)
关键词
钢筋锈蚀
承载能力
连续梁
整体性能
reinforcement corrosion
bearing capacity
continuous beam
overall performance