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Steel and Composite Structures Volume 22, Number 3, October30 2016 , pages 613-625 DOI: https://doi.org/10.12989/scs.2016.22.3.613 |
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Research on rotation capacity of the new precast concrete assemble beam-column joints |
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Chun Han, Qingning Li, Xin Wang, Weishan Jiang and Wei Li
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| Abstract | ||
| The joints of the new prefabricated concrete assemble beam-column joints are put together by the hybrid joints of inserting steel under post-tensioned and non-prestressed force and both beams and columns adopt prefabricated components. The low cyclic loading test has been performed on seven test specimens of beam-column joints. Based on the experimental result, the rotation capacity of the joints is studied and the M-θ relation curve is obtained. According to Eurocode 3: Design of steel structures and based on the initial rotational stiffness, the joints are divided into three types; by equivalent bending-resistant stiffness to the precast beam, the equivalent modulus of elasticity Ee is elicited with the superposition method; the beam length is figured out that satisfies the rigid joints and after meeting the requirements of application and safety, the new prefabricated concrete assemble beam-column joints can be regarded as the rigid joints; the design formula adopted by the standard of concrete joint classification is theoretically derived ,thereby providing a theoretical basis for the new prefabricated concrete structure. | ||
| Key Words | ||
| beam-column joint; rotation capacity; stiffness of equivalent bending-resistant; standard of concrete joint classification | ||
| Address | ||
| (1) Chun Han: College of Civil Engineering and Architecture, Xinxiang University, Xinxiang, P.R. China; (2) Qingning Li, Weishan Jiang: College of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, P.R. China; (3) Xin Wang: United Architecture Design Group Shanghai, Incorporated, Wuhan 430000, P.R. China; (4) Wei Li: College of Civil Engineering and Architecture, Wenzhou University, Wenzhou, P.R. China. | ||