【摘要】 [提要]进行了柱网为6m×6m的两跨连续装配整体式二次预应力夹层板的试验研究,得到了正常使用极限状态下结构的裂缝发展规律和荷载挠度关系,分析了结构的受力特点。同时研究了结构体系承载力极限状态的性能。结果表明,这种结构体系满足规范的正常使用极限状态和承载力极限状态的要求,而且结构的整体性能因二次预应力而得到提高。更多还原

【Abstract】 The two-span assembled monolithic continuous secondary prestressed concrete sandwich slab was tested.The development rules of cracks and load-deformation relationship at the normal use limited state are gained,and the bearing capacity of the structure is analyzed.The performance of the structure at bearing capacity limited stated is studied.The results show that the requests of the structure at normal use limited state and bearing capacity limited state stipulated in current codes, can be satisfied, and the integeral performance is improved because of the secondary prestress.更多还原