基于GAP单元的窄桩台高桩码头优化设计  

Optimized Design of Narrow Piled Wharf Based on SAP 2000_GAP Element

作　　者：田中南[1] 赵瑞东[1] 贝建忠 Tian Zhongnan;Zhao Ruidong;Bei Jianzhong(CCCC-FHDI Engineering Co.,Ltd.,Guangzhou Guangdong 510290,China)

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510290

出　　处：《港工技术》2022年第6期18-23,33,共7页Port Engineering Technology

摘　　要：窄桩台高桩码头多用于老码头升级改造工程或建造空间受限的工程,桩基平台宽度较小,具有较好的经济性,但由于桩基数量较少,按照常规设计方法,其承受水平荷载的能力较差,较难适应大型化码头的船舶撞击力和装卸设备荷载。本文基于SAP 2000三维有限元软件,采用GAP单元模拟过渡板对窄桩台的水平支撑作用,提出了适当增加接岸过渡板的厚度并考虑其水平支撑作用的窄桩台高桩码头优化设计方法,通过常规设计方法和优化设计方法的有限元模型对比分析,发现优化设计可以有效降低窄桩台高桩码头的水平位移及桩基内力,该方法对今后窄桩台高桩码头的优化设计具有一定的指导作用。Narrow piled wharf is mostly adopted in upgrading and reconstruction of the existing ports or the works being restricted by space.According to conventional design method,a narrow piled platform is economical but poor in horizontal load due to fewer piles,especially hard to bear the impact by large-size ships and the loads of loading/unloading equipment acting on large-scale wharf.Based on SAP 20003D finite modeling,GAP element is used to simulate horizontal support effect of transition slab on narrow piled wharf,and an optimum design is proposed,namely,the thickness of transition slab is appropriately increased and its horizontal support effect is taken into account.Through comparing and analyzing the finite models produced by using conventional design method and optimized design method,it is found that the optimum design can effectively reduce horizontal displacement and internal force of narrow piled wharf structure.This method has certain instructional significance to the optimization of narrow piled wharf in the future.

关 键 词：窄桩台高桩码头 优化设计方法 SAP 2000_GAP单元 过渡板 水平支撑 

分 类 号：TV865[水利工程—水利水电工程]