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- 주제어 : standard of concrete joint classification (검색결과 1 건)
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Research on rotation capacity of the new precast concrete assemble beam-column joints
Chun Han,Qingning Li,Xin Wang,Weishan Jiang,Wei Li 국제구조공학회 2016 Steel and Composite Structures, An International J Vol.22 No.3
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 <i>M</i>-<i>θ</i> 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 <i>E<sub>e</sub></i> 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.
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