摘要
预应力混凝土结构中施加预应力时,竖向构件的侧向刚度会约束梁、板构件的轴向变形,从而影响预应力在水平受弯构件中的传递,导致轴向预应力的损失.结合某框架-核心筒结构无粘结预应力楼盖工程实例,探讨了侧向约束对预应力楼盖受力性能的影响.
When pre-stressing force is imposed in pre-stressed concrete structure, the lateral stiffness restrain the axial displacement of beam or flat, affecting the transfer of pre-stressed force in the horizontal bended members and resulting in the lost of their axial pre-stressed force. Based on an engineering project about the unbounded pre-stressed floors in the frame-tube structure in this paper, the effects that lateral restraints have on the mechanical performances of pre-stressed slabs are simply discussed.
作者
楼黔秋
简政
高晓梅
Lou QianQiu;Jian Zheng;Gao XiaoMei
出处
《西北水力发电》
2005年第3期34-37,共4页
Journal of Northwest Hydroelectric Power
关键词
框架-核心筒
预应力楼板
侧向约束
frame-core tube, pre-stressed slabs, lateral restraints
