| 崔建华,张欣琦.组合梁抗弯试验与角钢连接件抗剪承载力研究[J].安徽建筑大学学报,2022,30(): |
| 组合梁抗弯试验与角钢连接件抗剪承载力研究 |
| The Study of Composite Beam Flexural Test andStrength of Angle Connectors |
| 投稿时间：2022-04-05 修订日期：2022-05-02 |
| DOI： |
| 中文关键词: 叠合板组合梁 角钢连接件 抗弯试验 抗剪承载力 |
| 英文关键词: composite beam with precast slab angle connector flexural test shear strength |
| 基金项目:安徽高校协同创新项目 |
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| 摘要点击次数: 1272 |
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| 中文摘要: |
| 提出一种预埋在叠合板组合梁中预制底板的角钢连接件，该角钢连接件带有焊接的弯起钢筋。该连接件旨在起到代替传统预制底板出筋的作用。基于此，进行了两组叠合板组合梁负弯矩作用下的抗弯试验，其变量为是否带预埋角钢连接件，对两组试件在负弯矩作用的试验结果进行对比分析。同时，由于连接件的预埋位置使其能展现较好的横向抗剪性能，对连接件提供的横向抗剪承载力进行研究,进行横向推出试验的模拟。结果表明：角钢连接件可以代替出筋，带角钢组合梁抗弯承载力略高于传统组合梁、且滑移更少；单个角钢可以提供142kN的横向抗剪承载力，角钢承载力随其屈服强度和翼缘厚度增加而增加。 |
| 英文摘要: |
| An angle connector pre-embedded is proposed, which has welded bent-up reinforcement and in the precast slab in a composite beam. The connector is aimed to play the role of replacing the extruding bars of the conventional precast slab. Based on this, two sets of flexural tests of composite beams with precast slabs under the action of negative bending moments were conducted. The variables of the test are whether or not with pre-embedded angle connectors. The test results of the two groups of specimens under the action of negative bending moment are compared and analyzed. At the same time, the pre-embedded position of the connectors enables them to exhibit better transverse shear performance. The transverse shear bearing capacity provided by the connectors is investigated. The results show that the angle connectors can replace the extruding bars of the precast slab. And the flexural load capacity of the composite beam with angles is slightly higher than that of the conventional composite beam with less slip. A single angle connector can provide a transverse shear resistance of 142 kN. The strength of the angle connector increases with its yield strength and flange thickness. |
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