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http://dx.doi.org/10.12989/scs.2016.22.3.613

Research on rotation capacity of the new precast concrete assemble beam-column joints  

Han, Chun (College of Civil Engineering and Architecture, Xinxiang University)
Li, Qingning (College of Civil Engineering, Xi'an University of Architecture and Technology)
Wang, Xin (United Architecture Design Group Shanghai)
Jiang, Weishan (College of Civil Engineering, Xi'an University of Architecture and Technology)
Li, Wei (College of Civil Engineering and Architecture, Wenzhou University)
Publication Information
Steel and Composite Structures / v.22, no.3, 2016 , pp. 613-625 More about this Journal
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 $M-{\theta}$ 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 $E_e$ 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.
Keywords
beam-column joint; rotation capacity; stiffness of equivalent bending-resistant; standard of concrete joint classification;
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