中美欧规范码头工程预应力混凝土管桩制作对比  

Comparison among Chinese,American,and European codes for manufacturing prestressed concrete pipe piles of wharf projects

作　　者：吴佳琪 娄学谦[1] 吕述晖[1] WU Jia-qi;LOU Xue-qian;LYU Shu-hui(CCCC Fourth Harbor Engineering Institute Co.,Ltd.,Guangzhou 510230,China)

机构地区：[1]中交四航工程研究院有限公司,广东广州510230

出　　处：《水运工程》2022年第7期246-251,258,共7页Port & Waterway Engineering

基　　金：南方海洋科学与工程广东省实验室(珠海)河口海岸与岛礁工程创新团队建设项目(311020009)。

摘　　要：随着我国“一带一路”倡议的提出,工程建设面临着不同国家不同标准的困惑。制作工艺决定着桩基构件的力学性能,了解不同国家的制作工艺标准是进行合理设计的重要基础。以中国码头施工规范、美国混凝土圆桩规范和欧洲标准相关规范为例,对比预应力混凝土管桩的部分制作工艺差异,结果发现:1)对于先张法,中国规范采用离心成型工艺,美国规范采用离心或静压注浆工艺;对于后张法,中国规范采用复合工艺或离心工艺,美国规范采用离心成型工艺;欧盟标准未具体规定。2)中国规范对钢筋加工、张拉、注浆和预应力制作工艺的规定较为细致;美欧规范具有通用性,一般需要大量引用其他规范或手册。比较结果对于我国建筑企业参与国外码头建设有参考借鉴意义。Due to the proposal of the Belt and Road Initiative,project construction is now faced with the confusion caused by the different standards of different countries.As the manufacturing process determines the mechanical properties of the pile foundation components,understanding the manufacturing processes of different national standards is an important basis for reasonable design.This paper discusses the Chinese code for wharf construction,the American code for concrete cylinder piles,and relevant codes in the European standard to reflect some differences in the manufacturing processes of prestressed concrete pipe piles.The main results are as follows:1)As for the pre-tensioning method,the Chinese code prefers the centrifugal casting process,while the American code uses a centrifugal or static pressure grouting process.In terms of the post-tensioning method,the Chinese code specifies a composite or centrifugal process,whereas the American code opts for a centrifugal casting process and the European code does not provide specific provisions.2)The Chinese code offers more detailed regulations on the processes of steel bar processing,tensioning,grouting,and prestressed manufacturing.In contrast,the American and European codes are universal and generally require that a large number of other codes or manuals be looked up.The comparison results can provide a reference for Chinese construction enterprises to participate in foreign wharf projects.

关 键 词：中美欧规范 预应力混凝土管桩 制作 对比 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]