TIAN Tao, WANG Wei, WANG Ying, ZHU Huipeng, WANG Hu. Research on Nonlinear Buckling of High-Pile Temporary Support Structures with BRBs[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 96-104. doi: 10.3724/j.gyjzG23080904
Citation:
TIAN Tao, WANG Wei, WANG Ying, ZHU Huipeng, WANG Hu. Research on Nonlinear Buckling of High-Pile Temporary Support Structures with BRBs[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 96-104. doi: 10.3724/j.gyjzG23080904
TIAN Tao, WANG Wei, WANG Ying, ZHU Huipeng, WANG Hu. Research on Nonlinear Buckling of High-Pile Temporary Support Structures with BRBs[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 96-104. doi: 10.3724/j.gyjzG23080904
Citation:
TIAN Tao, WANG Wei, WANG Ying, ZHU Huipeng, WANG Hu. Research on Nonlinear Buckling of High-Pile Temporary Support Structures with BRBs[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(4): 96-104. doi: 10.3724/j.gyjzG23080904
A novel temporary support system consisting of buckling restrained braces (BRBs) and high-pile temporary support structures was proposed to address local and overall buckling issues. Finite element analysis models were developed using ABAQUS to evaluate the nonlinear stability and bearing capacity of the proposed system. The models considered high-pile temporary support structures both with and without BRB diagonal bracing. Eigenvalue buckling analysis was performed to validate the modeling. Subsequently, nonlinear buckling analysis was conducted on 30 structures with different pile heights, diameters, thicknesses, diagonal bracing configurations, and defect ratios, considering various diagonal bracing types. The results indicated that the nonlinear buckling capacity of all structures significantly increased with increasing diameter and thickness, but decreased notably with increasing height. Notably, high-pile temporary support structures with BRBs exhibited enhanced nonlinear buckling bearing capacity and lateral stability deformation capacity. Based on the parameter analysis outcomes, a formula for calculating the nonlinear buckling bearing capacity of high-pile temporary support structures with BRBs was derived. Additionally, preliminary design suggestions were provided.
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