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Steel and Composite Structures Volume 23, Number 4, March20 2017 , pages 399-408 DOI: https://doi.org/10.12989/scs.2017.23.4.399 |
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Cyclic behavior of steel beam-concrete wall connections with embedded steel columns (I): Experimental study |
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Guo-Qiang Li, Fulin Gu, Jian Jiang and Feifei Sun
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| Abstract | ||
| This paper experimentally studies the cyclic behavior of hybrid connections between steel coupling beams and concrete shear walls with embedded steel columns. Four beam-to-wall connection specimens with short and long embedded steel columns are tested under monotonic and cyclic loads, respectively. The influence of embedment length of columns on the failure mode and performance of connections is investigated. The results show that the length of embedded steel columns has significant effect on the failure mode of connections. A connection with a long embedded column has a better stiffness, loadbearing capacity and ductility than that of a short embedded column. The former fails due to the shear yielding of column web in the joint panel, while failure of the latter is initiated by the yielding of horizontal reinforcement in the wall due to the rigid rotation of the column. It is recommended that embedded steel columns should be placed along the entire height of shear walls to facilitate construction and enhance the ductility. | ||
| Key Words | ||
| steel coupling beam; beam-to-wall connection; embedded steel column; failure mode; load-bearing capacity | ||
| Address | ||
| (1) Guo-Qiang Li, Jian Jiang, Feifei Sun: State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; (2) Fulin Gu: College of Civil Engineering, Tongji University, Shanghai 200092, China. | ||