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Home > Archive>Volume 51, Issue 3, 2023 >375-384. DOI:10.11908/j.issn.0253-374x.21460
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Full-scale Experimental Study on Stability Bearing Capacity of Column-supported Modular Steel Frame
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1.School of Management Science and Real Estate， Chongqing University， Chongqing 400044， China;2.College of Civil Engineering， Chongqing University， Chongqing 400044， China;3.College of Civil Engineering， Tongji University， Shanghai 200092， China;4.Department of Civil and Environmental Engineering， National University of Singapore， Singapore 119077， Singapore

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TU391

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    Abstract:

    To investigate the mechanical properties， failure mechanism， and the influence of the connection on the overall performance of the column-supported modular steel frame under vertical loading， the experimental study on specimens of the module-to-module joints and two-story-single-bay modular steel frame was conducted. The rotational stiffness of the module-to-module joints， the overall stability bearing capacity and the failure mode of the modular steel frame were obtained. Finally， the overall response of the modular steel frame and the joint behavior were also carefully observed， and the theoretical calculation model and numerical analysis model of the stability bearing capacity of the structure were verified. The module-to-module joint is classified as the semi-rigid type. Therefore， the effects of semi-rigid joints should be adequately taken into consideration in design. The failure mode of the modular steel frame under vertical loading is the overall instability of the upper and lower modular corner columns. The substructure model can preferably calculate the overall stability bearing capacity.

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CAO Ke, ZHAI Siyuan, LI Guoqiang, WANG Weiyong, Lü Yifan, CHEN Chen. Full-scale Experimental Study on Stability Bearing Capacity of Column-supported Modular Steel Frame[J].同济大学学报(自然科学版),2023,51(3):375~384

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History
  • Received:October 06,2021
  • Online: March 29,2023
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