Abstract
The concrete-filled steel tube (CFST) is a composite member consisting of a steel tube and concrete infill. CFST combines the advantages of both steel and concrete member as they are placed concentrically. Circular CFST columns show better performance compared to square one, as they provide more confinement to concrete infill. But the application of circular CFST columns is limited, due to the difficulties in assembling the connection. Split bolt assembly avoids the complications in the circular CFST column connections and improves the efficiency of the joint compared to straight bolt assembly. Split bolt assembly allows the intersection of through bolts at the same level. In this work, the seismic response of an exterior semi-rigid stiffened extended endplate connection between circular CFST column and I-beam with split bolt assembly is studied under displacement-controlled cyclic loading. The numerical study was conducted to investigate the influence of axial load level and split bolt angle on the joint behaviour. Initial stiffness of joint increases with increase in axial load level but has negligible effect on moment capacity of the joint.
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Sreeshma, P.U., Beena, K.P. (2023). A Numerical Study on the Seismic Response of Circular CFST Column-Beam Exterior Joint with Split Bolt Assembly. In: Madhavan, M., Davidson, J.S., Shanmugam, N.E. (eds) Proceedings of the Indian Structural Steel Conference 2020 (Vol. 2). ISSC 2020. Lecture Notes in Civil Engineering, vol 319. Springer, Singapore. https://doi.org/10.1007/978-981-19-9394-7_32
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DOI: https://doi.org/10.1007/978-981-19-9394-7_32
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