Journal of Shandong University(Engineering Science) ›› 2026, Vol. 56 ›› Issue (3): 49-61.doi: 10.6040/j.issn.1672-3961.0.2025.019

• 土木工程 • Previous Articles     Next Articles

Modelling of multi-vertical bar cell correction for segmental replacement of shear walls

YIN Chenglei1, ZHANG Yu2,3, ZHANG Yueran3*, ZHANG Bo3,4, REN Zongfu1, SUN Jiandong5   

  1. YIN Chenglei1, ZHANG Yu2, 3, ZHANG Yueran3*, ZHANG Bo3, 4, REN Zongfu1, SUN Jiandong5(1. Jinan Energy Engineering Group Co., Ltd., Jinan 250101, Shandong, China;
    2. Weifang University of Science and Technology, Weifang 262700, Shandong, China;
    3. School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China;
    4. School of Future Technology, Shandong University, Jinan 250061, Shandong, China;
    5. Shandong Academy of Building Research Co., Ltd., Jinan 250109, Shandong, China
  • Published:2026-06-09

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Abstract: Aiming at the problem that it was difficult to accurately simulate the local shear stiffness adjustment in the segmental replacement process of shear walls using the traditional multi-vertical rod unit model, this paper proposed a multi-vertical rod unit correction model based on an improved shear spring. Through the coupled modelling of independent shear springs and vertical rods, a refined characterization of axial stiffness and shear stiffness in the segmental replacement process of shear walls was achieved. The unit stiffness matrix of the model was reconstructed based on discretization theory, and a nonlinear numerical analysis program was developed using MATLAB and was solved by the modified Newton-Raphson method. Validation through calculation examples showed that the maximum relative error between the modified model and the solid element model was only 0.833%, while the computation time was significantly reduced. Furthermore, combined with real engineering cases, the error between the simulated strain values and the monitored values was less than 1%, which indicated that the modified model could accurately reflect the stress redistribution pattern of the replaced shear wall. The results demonstrated that the proposed multi-vertical rod unit correction model greatly improved computational efficiency while ensuring accuracy, and provided a reliable theoretical tool for mechanical analysis and construction optimization of segmental replacement in shear wall reinforcement.

Key words: shear walls, macroeconomic model, multi-vertical rod cell model, unit stiffness matrix, simulation analysis

CLC Number: 

  • TU978
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