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混凝土叠合板的预制底板外伸钢筋会给其制作和安装带来不便,但是否可以取消预制板底外伸钢筋存在争议。根据中国和美国的现行相关标准,建立了叠合板板端可能出现的受剪破坏模式及相应的受剪承载力计算公式,并通过算例分析了未留设预制底板外伸钢筋时,叠合板跨度、活荷载与后浇层最小厚度的关系。
Extensional reinforcement of prefabricated slabs of concrete slabs will bring inconvenience to its manufacture and installation, but it is controversial whether the extrinsic reinforcement of prefabricated slabs can be canceled. Based on the current relevant standards in China and the United States, the possible shear failure modes and corresponding formulas for calculating shear capacity of laminated plate ends are established. By means of an example, Span, live load and the minimum thickness of the back layer.