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首页> 外文期刊>PCI Journal >Behavior of Horizontal Shear Connections for Full-Depth Precast Concrete Bridge Decks on Prestressed I-Girders
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Behavior of Horizontal Shear Connections for Full-Depth Precast Concrete Bridge Decks on Prestressed I-Girders

机译：预应力工字梁上全深度预制混凝土桥面板水平剪力连接的行为

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摘要

This paper presents the results of a study of the horizontal shear resistance of the connection between full-depth precast concrete bridge deck panels and prestressed concrete girders. This connection consists of isolated shear connectors extending from the precast I-girder into a block-out pocket in the precast deck panel. The blockouts and the haunch between the panel and the beam are grouted. To investigate the strength and behavior of the connections, 36 push-off tests were performed. The primary parameters investigated were type of grout, haunch height, and area of reinforcing steel crossing the interface. In addition, several alternate shear connector details were tested. It was concluded that of currently known horizontal shear resistance equations, the one presented in the AASHTO LRFD Bridge Design Specifications is the best predictor of the strength of the specimens.
机译：本文介绍了对全深度预制混凝土桥面板和预应力混凝土梁之间连接的水平抗剪强度的研究结果。该连接由隔离的剪力连接器组成，这些连接器从预制的I型梁延伸到预制甲板面板中的遮盖袋中。面板和梁之间的遮挡物和束缚被灌浆。为了研究连接的强度和行为，进行了3​​6次推入测试。研究的主要参数是灌浆类型，直角高度和穿过界面的钢筋面积。此外，还测试了多个备用剪切连接器细节。可以得出结论，在当前已知的水平抗剪力方程中，AASHTO LRFD桥梁设计规范中提出的方程是预测强度的最佳指标。

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