平面形状不规则对高桩码头地震效应的影响  

Seismic Effect of Irregular Plane Shape on Pile-supported Wharf

作　　者：王滨[1] 李颖[2,3] 朱彬彬[1] 郑鹏翔[1] 周永[1] 

机构地区：[1]中国水电顾问集团华东勘测设计研究院有限公司,浙江杭州310014 [2]中国联合工程公司,浙江杭州310006 [3]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《水电能源科学》2014年第1期84-88,共5页Water Resources and Power

基　　金：浙江省博士后科研择优资助项目;中国水电顾问集团华东勘测设计研究院有限公司立项课题(KY120228-03-07)

摘　　要：为了进一步明确平面形状不规则对高桩码头地震效应的影响,以L型平面不规则高桩码头为例,基于美国Northridge地震波,采用ABAQUS有限元软件对比分析了平面形状不规则与规则高桩码头的地震反应,研究了平面形状不规则对高桩码头各桩桩顶水平力、弯矩及结构整体扭转角的影响。结果表明,高桩码头平面形状不规则会导致桩顶水平力和结构整体扭转角的增大,桩基地震破坏数目增加;平面形状不规则高桩码头转角部位桩群水平力峰值普遍较大,且应力复杂,设计中需重点考虑。In order to further identify the seismic influence of the plane irregularity on pile-supported wharf, taking a L type irregular plane pile-supported wharf for an example, based on the American Northridge motion, the difference be- tween the irregular and regular plane pile-supported wharf on the seismic response is analyzed with the ABAQUS soft ware. And the effects of the plane irregularity on the lateral force and the bending moment at the pile heads and the over- all torsion angle of the pile-supported wharf are studied. The conclusion is that the plane irregularity of the pile-supported wharf can result in the increase of the lateral force at the pile heads, the overall torsion angle of the wharf structure and the number of the damaged piles; the lateral force peak at the corner part of the irregular plane pile-supported wharf is generally large, and the stress is very complex, so this part needs a significant consideration in design.

关 键 词：高桩码头 抗震分析 不规则平面 扭转角 

分 类 号：U656.113[交通运输工程—港口、海岸及近海工程]