Wall Cracking and Reinforcement Case of Existing Masonry Structure
WANG Junbo
Shen Hewen
WANG Xinyu
LIANG Yaozhe
Abstract：Differential foundation settlement is prone to inducing wall cracking in masonry structures.For an existing masonry structure,the settlement patterns of the superstructure and crack propagation mechanisms by measuring foundation settlement and wall crack data at different time periods were revealed.Three-dimensional finite element models were constructed for both pre-reinforcement and post-reinforcement conditions.The extended finite element method(XFEM)was applied to analyze soil-structure interaction deformations.The correlation between wall cracking and foundation settlement was explicitly clarified.Crack distribution characteristics were systematically elucidated through this integrated approach.The results demonstrate that finite element simulation results accurately reflect the actual wall cracking patterns,with crack propagation directions orthogonal to the principal stress and principal tensile strain directions.When the local tilt of the structure exceeds 0.000 2,cracks accelerate significantly,necessitating close monitoring in engineering practice.Through a case study,practical guidance can be provided for preventing structural safety hazards caused by differential foundation settlement.
Keywords：masonrycrackextended finite element methoddifferential settlementreinforcement
Publication Date：2025-06-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 69-78 )