装配式RC桥墩发展现状及研究展望
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1.福建省土木工程新技术与信息化重点实验室福建工程学院;2.福州大学 土木工程学院;3.皓耀时代(福建)集团有限公司

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福建省自然科学(2019J01779, 2020J1477)


The development status and research prospect of prefabricated RC piers
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Affiliation:

1.Fujian Provincial Key Laboratory of Advanced Technology and Information in Civil EngineeringFujian University of Technology,Fuzhou;2.College of Civil Engineering,Fuzhou University;3.Hao Yao Times Fujian Group Co,LTD

Fund Project:

Natural Science Foundation of Fujian Province (No. 2019J01779, 2020J1477)

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    摘要:

    基于国内外相关工程案例,对装配式桥墩的结构体系进行介绍;从结构受力性能、耐久性、施工便利性等角度,对不同类型装配式桥墩的优缺点进行分析比较。通过分析既有研究成果发现:既有研究大多集中于桥墩的抗震性能,但涉及装配式RC桥墩的抗压、抗剪性能等研究仍较为少见,JTG/T 3365-05-2022虽提出了装配式混凝土桥墩的结构计算方法,但尚未根据不同类型的装配式桥墩的拼接构造特征,提出相应的局部构造的极限承载力验算方法;JTG/T 3365-05-2022、JTG/T 3364-2022针对部分类型的装配式桥墩的构造要求、施工工艺进行规定,一些地方标准已涉及装配式桥墩的抗震设计、施工、验收等,可用于指导部分类型的装配式桥墩的设计与施工,但其内容仍不够全面。在此基础上提出装配式桥墩在结构设计、施工、质量管控等方面存在的不足以及今后的发展方向,相关研究可为今后装配式桥墩的理论研究、工程应用,以及相关规范和规程的进一步补充完善提供参考借鉴。

    Abstract:

    This analysis is based on relevant engineering cases from both domestic and international contexts, the structural system of prefabricated piers is introduced. The benefits and drawbacks of various types of prefabricated piers are compared and analyzed in terms of their structural mechanical performance, durability, and ease of construction. Through the review of current research findings, it was discovered that: while there is still little research on the compressive and shear characteristics of prefabricated RC piers, the majority of it still focuses on the seismic performance of bridge piers, despite the fact that JTG/T 3365-05-2022 has proposed a method for structurally calculating prefabricated concrete piers, it has not yet proposed a method for checking the ultimate bearing capacity of local structures in accordance with the splicing structure characteristics of various prefabricated pier types; while JTG/T 3365-05-2022 and JTG/T 3364-2022 specify the structural specifications and construction technology for some types of prefabricated piers, some local standards have already addressed the seismic design, construction, acceptance, etc. of prefabricated piers. These standards can be used to guide the design and construction of some types of prefabricated piers, but their contents are still insufficient. On the basis of this, the limitations of the manufactured pier in structural design, construction, quality control, and other areas are presented, along with a course for future growth. Relevant research can serve as a source of inspiration for theoretical study, technical application, and future augmentation and enhancement of pertinent guidelines and practices for manufactured piers.

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  • 收稿日期:2022-06-15
  • 最后修改日期:2022-11-30
  • 录用日期:2022-12-01
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