Development of steel beam-to-column connections using SFRCC slabs
Development of steel beam-to-column connections using SFRCC slabs
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DOI：
10.1016/j.engstruct.2013.03.021
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发表时间：
2013-07
影响因子：
5.5
通讯作者：
Yao Cui;Yun-Biao Luo;M. Nakashima
中科院分区：
文献类型：
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作者：
Yao Cui;Yun-Biao Luo;M. Nakashima
提出了一种钢纤维水泥基复合材料板连接钢梁柱节点。在建议的连接中，SFRCC板被设计为外部隔板，以将梁翼缘荷载传递到柱面。在梁翼缘密集布置栓钉，连接钢纤维混凝土板和钢梁。推出试验结果表明，SFRCC的应用承诺更大的剪力传递通过栓钉排列在一个小区域的板。通过一系列低周反复荷载试验，研究了钢纤维混凝土板梁柱节点的抗震性能和破坏机理。通过在钢纤维混凝土板中布置足够数量的栓钉和钢筋，可以在钢纤维混凝土板的端部实现梁的铰接机制。数值模型，以提高拟议的梁柱连接的行为的理解。参数数值研究也进行了调查的影响，栓钉的数量，板的尺寸，和建议的连接的弹性刚度和强度的钢筋量。最后一节介绍了设计考虑因素以及需要进一步研究的主题。
A steel beam-to-column connection with steel fiber reinforced cementitious composites (SFRCCs) slab is proposed. In the proposed connection, the SFRCC slab is designed as an exterior diaphragm to transfer the beam flange load to the column face. The headed studs are densely arranged on the beam flange to connect the SFRCC slabs and steel beams. The push-out test results suggest that the application of SFRCC promises larger shear forces transferred through studs arrayed in a small region in the slab. The seismic performance and failure mechanism of the beam-to-column connection with SFRCC slab are examined based on a series of cyclic loading tests. The beam hinging mechanism can be achieved at the end of the SFRCC slab by the arrangement of a sufficient number of studs and rebars in the SFRCC slab. Numerical models are employed to enhance understanding of the behavior of the proposed beam-to-column connection. Parametric numerical study is also conducted to investigate the effect of the number of studs, slab size, and the amount of rebar on the elastic stiffness and strength of the proposed connection. Design considerations are presented in the last section together with the subjects that require further studies.