基于ABAQUS的格形钢板桩抗倾覆稳定性数值分析  

Numerical Verification of Cellular Steel Sheet Pile's Stability Against Overturning Using ABAQUS

作　　者：伍晓峰[1] WU Xiaofeng(Longyan University, Longyan, Fujian 364000, Chin)

机构地区：[1]龙岩学院,福建龙岩364000

出　　处：《龙岩学院学报》2016年第5期98-102,共5页Journal of Longyan University

基　　金：龙岩学院服务海西资助项目(LYXY2011098)

摘　　要：以通用有限元软件ABAQUS的接触分析功能为工具,建立了格形钢板桩二维平面应力应变有限元分析模型,采用有限元强度折减法计算格形钢板桩的抗倾覆稳定性安全系数,对有限元计算的格形钢板桩结构的破坏面与传统方法假定的破裂面进行了比较,验证了传统假设的合理性。进一步分析了格形钢板桩前、后桩土压力分布和填料性质对格形钢板桩结构抗倾性能的影响,结果表明基于ABAQUS的数值计算方法与汉森法等传统理论方法相比不仅是可行的,而且能节省工程造价,在工程上具有实际意义。In this paper, the finite element analysis model of two-dimensional plane stress and strain of cellular steel sheet pile is established, and through the function of contact analysis of the general finite element software ABAQUS, the strength reduction method is adopted to compute the cellular steel sheet pile’s safety factor against overturning. The paper compares the failure surface of cellular steel sheet pile structure calculated by finite element wTith the rupture surface assumed by traditional methods like the Hanson method to verify the rationality of the traditional assumptions. The result showTs that, compared with the traditional methods, the present numerical method based on ABAQUS takes into consideration the positive safety factors against overturning that ＇were ignored before and also avoids deviations resulted from internal force calculation adopted by traditional methods, thus the result is above average. When the same filling is used, the method can guarantee the same design safety factor while employing smaller size of structure so as to save construction costs.

关 键 词：格形钢板桩 ABAQUS二维有限元 抗倾覆安全系数 填料内力 

分 类 号：TU473.1[建筑科学—结构工程]