一种异型沉箱浮游稳定性高效计算方法  

An Efficient Method for Calculating Floating Stability of Allotype Caisson

作　　者：马勇[1] 方波 谭彬政 Ma Yong;Fang Bo;Tan Binzheng(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3期8-13,共6页Port Engineering Technology

摘　　要：混凝土沉箱作为一种重要的水工结构,广泛应用于港口码头的建设中。浮游稳定性是沉箱在出运、安装过程中的安全保证。对于常规的规则矩形沉箱,浮游稳定计算较为简单,规范中给出了明确的计算方法,通常采用简单的手算即可完成。但是,对于横截面不对称的异型沉箱,若采用常规的手算计算方法,则相当繁琐、且难以得到准确的计算结果。本文以某一海外港口工程为依托,介绍了一种利用AutoCAD和Excel计算异型沉箱浮游稳定的高效方法,以期为其它项目提供参考和借鉴。As an important maritime structure,concrete caisson is widely used in the construction of ports and terminals.Floating stability guarantees safe transportation and installation of caissons.The calculation of floating stability is relatively simple for regular caisson,which is specified clearly in the relevant standard,and can be completed by simple manual calculation.However,the above conventional method is quite tedious and difficult to obtain accurate results in the calculation of caisson with unsymmetrical section.Based on one overseas port project,one efficient method combining AutoCAD with Excel for calculating the floating stability of allotype caisson is introduced,which will provide a reference for other projects.

关 键 词：非对称截面沉箱 浮游稳定 AUTOCAD EXCEL 转轴公式 惯性矩圆 截面惯性矩 

分 类 号：U443.132[建筑科学—桥梁与隧道工程]