异形截面桩截面参数优化设计研究  

RESEARCH ON OPTIMIZATION DESIGN OF SECTION PARAMETERS OF SPECIAL SECTION PILE

作　　者：杨宁 杜帅 YANG Ning;DU Shuai(School of Architectural Engineering,Binzhou University,Binzhou 256600,Shandong,China)

机构地区：[1]滨州学院建筑工程学院,山东滨州256600

出　　处：《力学与实践》2022年第1期109-115,共7页Mechanics in Engineering

摘　　要：高层建筑物需要采用"异形截面桩"(简称异形桩)来提高承载力,为实现优化设计,需要对影响其力学性能的重要结构参数进行归类分析,在探究其影响机理的基础上,得出不同结构参数改变时异形桩承载能力的变化趋势与最优解。本文对异形桩进行参数化分析,在特定截面周长、面积的情况下,改变异形桩外尖角个数与夹角,探究不同截面参数对异形桩力学性能的影响,结果表明异形桩的竖向承载能力与横向抗弯能力都优于同样截面面积的管桩,且内凹型异形桩优于外凸型异形桩。Special shaped section piles are used to improve the load carrying capacity of high-rise buildings.In order to achieve optimal design,it is necessary to categorize and analyze the important structural parameters that affect the mechanical properties,and it is also necessary to find out the trend and optimal solution of the load carrying capacity of special shaped section pile for various different structural parameters.In this paper,we use parametric analysis of special shaped section piles to investigate the influence of different cross-section parameters on the mechanical properties of such piles by changing the number and angle of external cusps.The results show that the vertical bearing capacity and lateral bending resistance of special shaped section piles are better than those of pipe piles with the same cross-sectional area,and that the concave section piles are better than the convex section piles.

关 键 词：桩基础 力学性能 参数优化 受力机理 

分 类 号：TU473.1[建筑科学—结构工程]