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首页> 外文期刊>Journal of Constructional Steel Research >Flexural behavior of shallow cellular composite floor beams with innovative shear connections
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Flexural behavior of shallow cellular composite floor beams with innovative shear connections

机译：具有创新剪力连接的浅蜂窝复合地板梁的抗弯性能

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摘要

This paper presents an experimental study of the flexural behavior and shear transfer mechanisms of shallow cellular composite beams where the concrete passing through the steel web opening is combined with a steel tie-bar element to form the shear connection. Four full-scale flexural tests were undertaken aiming to provide information on their flexural behaviors, and to assess the shear resisting properties and the failure mechanisms of the proposed shear connections. The tested composite beams showed satisfactory composite behavior and satisfactory horizontal shear resistance. It is demonstrated that combining the tie-bar with the concrete significantly increases the shear resistance, slip capacity and ductility of the shear connections. Based on the test findings, design procedures of shallow cellular floor beams which are in accordance with the stress method presented in EC4 and BS5950-3.1 and of the shear connection were developed. The design procedures were verified against the test results and were found to be consistent. (C) 2014 Elsevier Ltd. All rights reserved.
机译：本文对浅孔蜂窝状组合梁的抗弯性能和剪切传递机理进行了实验研究，其中穿过钢腹板开口的混凝土与钢拉杆元素组合形成剪切连接。进行了四个全面的弯曲试验，旨在提供有关其弯曲行为的信息，并评估所提出的剪切连接的抗剪性能和破坏机理。测试的复合梁表现出令人满意的复合性能和令人满意的水平抗剪强度。结果表明，将拉杆与混凝土结合可以显着提高抗剪连接的抗剪强度，滑移能力和延展性。根据测试结果，制定了根据EC4和BS5950-3.1中的应力方法以及剪力连接的浅蜂窝楼板梁的设计程序。根据测试结果验证了设计程序，并发现它们是一致的。 （C）2014 Elsevier Ltd.保留所有权利。

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