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开孔板连接件是指在钢板适当位置开圆孔,将混凝土灌入圆孔中形成混凝土榫,依靠圆孔中混凝土承担钢与混凝土间作用力的新型连接件。影响开孔板连接件抗剪性能的主要因素有开孔板的孔径、贯通钢筋直径、混凝土强度等,基于混凝土弹塑性断裂-损伤模型,建立开孔板连接件数值模型,针对此3个因素进行参数分析,研究了其抗剪性能,取得了较好的效果。
The perforated plate connector refers to a hole in a proper position of a steel plate, a concrete pouring into a round hole to form a concrete mortise, and a new type of connecting piece that relies on the concrete in the round hole to bear the force between the steel and the concrete. The main factors affecting the shear performance of perforated plate connectors are the aperture of perforated plate, the diameter of reinforced concrete, the strength of concrete, etc. Based on the elastoplastic fracture-damage model of concrete, a numerical model of perforated plate connector is established. According to these three factors The parameter analysis is carried out, the shearing performance is studied, and the better effect is obtained.