潜式沉箱-群桩-平台型复合结构波浪力计算的试验研究  

Experimental study of wave forces on caisson-pile-deck composite structure

作　　者：郭传胜[1] 张宁川[1] 刘赞强[1] 黄玉新[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,大连116024

出　　处：《水道港口》2011年第2期77-85,共9页Journal of Waterway and Harbor

基　　金：国家自然科学基金(50921001);博士后基金(20080441115)

摘　　要：文章介绍了一种潜式沉箱、群桩和平台相结合的新型复合结构。通过物理模型试验对这种复合结构在规则波和不规则波作用下的水动力特征进行了研究,探讨了正向波浪总力和垂向波浪总力与无因次参数相对波高H/d、相对沉箱长度A1/L及相对沉箱潜深d1/L之间的关系。根据试验结果总结出正向力与垂向力的计算公式,给出了复合结构各部分受力随透空高度S1/H的变化规律。试验结果表明,在复合结构受力的各个影响因素中,相对沉箱长度A1/L对复合结构受力影响较大,在结构设计中应予以重视。A new caisson-pile-deck composite structure was introduced in this paper.Through laboratory experiments,the hydrodynamic characteristics of the structure were studied under the actions of regular and irregular waves.The relationships between total wave forces in horizontal and vertical directions and relative wave height H/d,relative caisson length A1/L and relative caisson submerged depth d1/L were discussed.Besides,the correlation equations for the calculation of total horizontal and vertical wave forces were obtained from the Least Square Method,and the rule of wave forces on each part of the structure with relative clearance S1/H was proposed.The results show that relative caisson length A1/L is one of the major factors influencing the structural force which should be paid attention to in the engineering design.

关 键 词：潜式沉箱 复合机构 波浪力 垂向波浪力 

分 类 号：TU473.1[建筑科学—结构工程]