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通过对于高度一定的柱下独立四桩承台的ANSYS有限元计算分析,得出四桩厚承台的空间桁架传力模式及斜压杆的劈裂或压碎破坏机理。并且比较在相同配筋率下,不同配筋形式;相同配筋形式下,不同配筋率;及腹部配置水平钢筋网对承台极限承载力的影响。研究成果有望降低承台的厚度,从而降低承台工程造价,赢得行业宏观经济效应。
Through the finite element analysis of ANSYS with four piles under a certain height, the force transfer model of four-piles cap and the mechanism of splitting or crushing of the bar are obtained. The influences of different reinforcement forms under the same reinforcement ratio, different reinforcement ratios under the same reinforcement form, and the ultimate reinforcement capacity of the horizontal platform with abdominal reinforcement were compared. The research results are expected to reduce the thickness of cap, thereby reducing the cost of cap project, to win the industry macroeconomic effect.