叠合受弯构件沿叠合面抗剪设计方法的建议  

Suggestions on the design method for shear along the topping interface of a composite member

作　　者：苑振芳[1] 

机构地区：[1]中国建筑东北设计研究院有限公司

出　　处：《工程建设标准化》2017年第3期47-55,共9页Standardization of Engineering Construction

摘　　要：叠合构件是国家建筑产业化主推的建筑构配件之一,但与之相应的国家规范在叠合构件的抗剪设计方面存在不足,尚不能完全满足工程设计计算的需求。而相应的美国规范对此早已有较完善系统的规定。和我国规范相比,虽同样基于剪摩理论,但其在叠合界面的不同材质、不同粗糙度、有无配筋等均有具体的设计和计算规定。尤其是其沿叠合层设置的与叠合面垂直的抗剪钢筋,即"剪力—摩擦钢筋"的抗剪计算方法,其中的"剪力—摩擦钢筋"术语是其特点,而且针对性强,非常实用。经本文之试验验证,该规范规定的方法具有可行性、适用性和安全性,值得我们借鉴。Composite members （ beam and slab ） belong to the state building industrialization＇ s catalogue, but it is not satisfactory for the design calculation with shear at the topping interface and so for the design need. But the relevant US codes have had the provisions for the matter. Compared with the Chinese ones, though based on the same shearfriction theory,the provisions dealing more with conditions or differences of materials, roughness, reinforced or not with ties which defined as ＂shear-friction reinforcement＂ and arranged along and at normal to the topping interface. This ＂shear-friction reinforcement＂ in the shear design is very useful and at a point in need. The shear reinforcement capacity tested by the paper is available and safer, and worth for reference.

关 键 词：叠合构件 剪摩理论 剪摩钢筋 沿叠合面抗剪设计方法 

分 类 号：TU37[建筑科学—结构工程]