摘要
针对大跨度楼板应用需求越来越多的现状,提出了一种预应力空心纵肋叠合板体系。为研究该体系的整体受力性能,对其破坏形态、抗裂性能、抗弯刚度及承载力进行了试验研究。结果表明:所提出的预应力空心纵肋叠合板体系可满足承载力、挠度、裂缝控制性能等指标要求;与现浇板相比,该叠合板体系具有良好的整体性;采用底板反拱的施工方式是安全可行的。
In view of the increasing demand for the application of large-span slab,a prestressed hollow longitudinal rib composite slab system was proposed.In order to study the overall mechanical performance of precast prestressed hollow longitudinal rib slab and composite slab,a systematic experimental study was carried out on the fracture morphology,crack resistance,bending stiffness and bearing capacity of prestressed longitudinal rib composite slab.The results show that the proposed prestressed longitudinal rib composite slab can meet the requirements of bearing capacity,deflection,crack control performance and other indicators.Compared with the cast-in-place slab,the prestressed longitudinal rib composite slab has good integrity.The construction method of bottom slab reverse arch is safe and feasible.
作者
常世涛
张超
CHANG Shi-tao;ZHANG Chao(Beijing Yantong Precast Concrete Co.,Ltd.,Beijing 102200,China;C&E Center For Engineering Research Test And Appraisal Co.,Ltd.,Beijing 100142,China)
出处
《混凝土与水泥制品》
2023年第4期48-53,共6页
China Concrete and Cement Products
关键词
预应力混凝土
纵肋叠合板
承载力
静力试验
Prestressed concrete
Longitudinal rib laminate
Bearing capacity
Static testing
