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作者:

Lu, Xiuliang (Lu, Xiuliang.) | Li, Xiongyan (Li, Xiongyan.) (学者:李雄彦) | Wang, Wei (Wang, Wei.) | Xue, Suduo (Xue, Suduo.) | Zhang, Xiongdi (Zhang, Xiongdi.)

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摘要:

A new beam -column transfer joint is proposed, which consists of an upper column with a concrete -filled steel tube column (CFST), a lower column with a variable -diameter steel -concrete column (SRC), and a reinforced concrete beam. The new transfer joint is mainly set on the roof of the basement of a high-rise building structure. Compared with traditional transfer joints, it reduces the amount of steel used, increases the use space of the basement, and improves the seismic performance of the structure. New transfer joint and traditional joint were tested under cyclic loading to investigate response of the proposed joint. The main performance indicators studied are hysteretic response, energy dissipation, ductility, and stiffness degradation. Research results show that the energy consumption and carrying capacity of the new transfer joint are higher than those of the traditional joint. The correctness of the finite element analysis was verified through the test results, and a parametric analysis was carried out on this basis. It was found that the diameter reduction position of the steel tube and the length of the corbels of the lower column have little impact on the seismic performance of the new transfer joint. The thickness of the steel tube has a greater impact on the seismic performance of the new transfer joints. The peak bearing capacity is increased by about 17 %. Finally, according to the formula given by the specification, the embedding effect of the new transfer joint and the traditional joints are compared. The effect of the new transfer joints is better than that of the traditional one, which can provide a reference for future basement design of high-rise building structures.

关键词:

New transfer joint Seismic performance Experiment Steel tube concrete column FE analysis

作者机构:

  • [ 1 ] [Lu, Xiuliang]Beijing Univ Technol, Collage Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Xiongyan]Beijing Univ Technol, Collage Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Wei]Beijing Univ Technol, Collage Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Xue, Suduo]Beijing Univ Technol, Collage Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, Xiongdi]Beijing Beichen Exhibit Investment Co Ltd, Beijing 100101, Peoples R China

通讯作者信息:

  • [Li, Xiongyan]Beijing Univ Technol, Collage Architecture & Civil Engn, Beijing 100124, Peoples R China;;

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来源 :

STRUCTURES

ISSN: 2352-0124

年份: 2024

卷: 65

4 . 1 0 0

JCR@2022

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