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为了得到T形开孔肋连接件的极限承载力及其影响因素,设计、制作了15组不同的T形开孔肋连接件试件共计45个,进行了极限承载力和破坏形式测试试验,分析了不同因素对T形开孔肋连接件承载力和破坏形式的影响;并根据试验结果建立了可以用于T形开孔肋极限承载力的计算公式。研究结果表明:T形开孔肋连接件抗剪承载力大、延性好;T形开孔肋的厚度、开孔大小和混凝土的强度对T形开孔肋连接件承载力影响较为显著;T形开孔肋的腹板高度、翼缘的数量、贯穿钢筋的直径和T形开孔肋的翼缘长度对其承载力有一定的影响;研究结果可为T形开孔肋的设计和应用提供依据。
In order to obtain the ultimate bearing capacity of T-shaped perforated rib connection and its influencing factors, 15 different T-shaped perforated rib connection specimens were designed and manufactured, a total of 45 specimens were tested, and the ultimate bearing capacity and failure mode test were carried out. The influence of different factors on the bearing capacity and failure mode of T-shaped perforated rib connections was analyzed. Based on the test results, the formula for calculating the ultimate bearing capacity of T-shaped perforated ribs was established. The results show that the T-shaped perforated rib connectors have a large shear strength and good ductility. The thickness of the T-shaped perforated ribs, the size of the openings and the strength of the concrete have a significant effect on the bearing capacity of the T- The height of web, the number of flanges, the diameter of through rebar and the length of flange of T-shaped perforated rib have a certain influence on the bearing capacity. The results of the research can be the design and application of T-shaped perforated rib Provide evidence.