基于ANSYS的双排钢板桩海堤受力特性分析  

Analysis of Mechanical Characteristics of Double-row Steel Sheet Pile Seawalls Based on ANSYS

作　　者：刘春阳[1] 张淑华[1] 陈光明[1] 孙兴毅 

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《华东交通大学学报》2016年第2期106-113,共8页Journal of East China Jiaotong University

基　　金：国家自然科学基金项目(40776053/D0606)

摘　　要：以浙江某双排钢板桩海堤为例,用ANSYS软件,采用Drucker-Prager本构模型,以接触对模拟桩土作用,分别计算设计荷载及地震荷载下结构的受力。将设计荷载下计算结果与钢筋混凝土板桩进行对比,结果显示,相同尺寸、土层及荷载条件下,钢板桩结构位移比钢筋混凝土板桩小。地震荷载下,钢板桩体系对地震波有放大作用,板桩顶部与横梁接部位及桩土接触位置处应力较大,需要进行加强处理。随后计算动水压力对结构的影响,结果显示,附加质量对结构的位移有较大的影响,动水阻尼的影响可以忽略不计。Double-row steel sheet pile seawall is a new type of seawalls. Taking a double-row of steel sheet pile seawall in Zhejiang Province as an example,based on Drucker-Prager constitutive model,adopting ANSYS soft ware and simulating the effect of piles and soil by contact pair,this study calculated the stress of structures un-der design load and seismic load respectively. Results compared with reinforced concrete sheet pile showed that in the condition of the same size,soil and load,the structure displacement of steel sheet pile was smaller than that of reinforced concrete sheet pile. Under the seismic load,sheet pile system would amplify seismic waves, moreover,stress from connected parts of sheet pile top and crossbeam,and pile soil contact points was large, which needed to be further resolved. After researching the impact of hydrodynamic pressure on structure,it showed that the added mass had effect on the structure displacement,while the influence of dynamic water damping was negligible.

关 键 词：钢板桩 地震 动水压力 

分 类 号：TU352[建筑科学—结构工程]