Experimental Analysis on Interaction of Rigid Pile Composite Foundation of Modular Building

  • Zhang Jichao ,
  • Yang Yong
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  • School of Civil Engineering, Guangzhou University, Guangzhou 510006, P.R. China

Received date: 2023-08-10

  Online published: 2024-07-15

Abstract

Based on a modular demonstration building, this paper makes a simplified 1:10 outdoor scale model of the rigid pile composite foundation of the modular building, considering the interaction between the upper module structure and the foundation. Through the model test, the influence of the stiffness change of the upper module on the steel columns of the upper module, the raft foundation and the rigid pile composite foundation are analyzed. The results show that the axial force of the central column of the modular building is greater than that of the side column and the axial force of the corner column; with the increase of the stiffness of the upper module, the axial force of the middle column gradually decreases, and the axial force of the side column and corner column gradually increases ; The middle part of the raft foundation has the largest settlement, and the side part has the smallest settlement. The overall settlement gradually increases with the increase of the upper module floor; The depth direction of the pile increases first and then decreases; negative friction resistance occurs in a certain range on the top of the pile body. The analysis results can provide reference for the design of modular building unit components and the optimization design of rigid pile composite foundation.

Cite this article

Zhang Jichao , Yang Yong . Experimental Analysis on Interaction of Rigid Pile Composite Foundation of Modular Building[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(3) : 908 -916 . DOI: 10.20174/j.JUSE.2024.03.20

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