单层超长预应力平板-柱结构侧限分析  

ANALYSIS OF LATERAL RESTRAINT EFFECTS FOR SUPER-LONG ONE-STOREY PRESTRESSED SLAB-COLUMN STRUCTURE

作　　者：陈大川[1] 林元烁[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《工业建筑》2012年第2期58-61,共4页Industrial Construction

摘　　要：预应力平板柱结构在张拉预应力筋时将受到侧向约束影响,通过对一实际工程的检测分析这种侧向约束影响的规律;根据变形协调关系建立单层多跨框架在两端部集中力作用下求解侧向约束影响系数的方程组,根据基本假定得到计算柱次剪力的简化计算公式,并结合公式分析实际工程受侧向约束影响的规律。文中给出的求解侧向约束影响系数方程组可以较准确地计算水平构件的侧限影响。Prestressed slab-column structure must be affected by lateral restraint when prestressed tendons were being tensioned. The law of this influence was analysed by a test of an actual project. According to compatibility of deformation, an equation set to solve lateral restraint effects for one-storey and multiple-span frame was built up. Based on the basic assumptions, a simplified formula to calculate the secondary shearing force of column was obtained, with which the law of the lateral restraint effects for the project was analysed. The equation set built up at this paper could solve lateral restraint effects of horizontal members more accurately.

关 键 词：预应力 侧向约束 平板-柱结构 次内力 

分 类 号：TU378[建筑科学—结构工程]