广东工业大学学报 ›› 2019, Vol. 36 ›› Issue (04): 85-91.doi: 10.12052/gdutxb.180180

• 综合研究 • 上一篇    下一篇

预应力轴压比对节段拼装桥墩力学性能影响分析

禹智涛, 潘浩, 贺绍华   

  1. 广东工业大学 土木与交通工程学院, 广东 广州 511495
  • 收稿日期:2018-10-11 出版日期:2019-06-18 发布日期:2019-06-18
  • 通信作者: 潘浩(1993-),男,硕士生研究生,主要研究方向为装配式桥墩力学性能.
  • 作者简介:禹智涛(1968-),男,副教授,博士,主要研究方向为大跨度桥梁稳定性及可靠度.E-mail:yuzt@gdut.edu.cn
  • 基金资助:
    国家自然科学基金资助项目（51508109）

Influence of Prestressed Axial Compression Ratio on Mechanical Properties of Segmental Bridge Piers

Yu Zhi-tao, Pan Hao, He Shao-hua   

  1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 511495, China
  • Received:2018-10-11 Online:2019-06-18 Published:2019-06-18

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摘要： 采用后张预应力连接的节段拼装桥墩具有施工工期短、对环境影响小、质量易保证等优点，但至今其力学性能尚不明确.为了获得一个具有良好力学性能的预应力轴压比值，本文以一节段拼装桥墩为原型，设计了5种节段拼装桥墩方案，利用ABAQUS建立了实体有限元模型并进行模拟计算.将模拟结果与既有试验结果进行比较，验证了该模拟方法的正确性.分析对比了不同预应力轴压比对节段拼装式桥墩的力学性能的影响，结果表明轴压比在10%~20%的结构拥有较好的力学性能.研究为节段拼装桥墩的设计提供一定的参考.

关键词: 预应力节段拼装桥墩, 预应力轴压比, 力学性能分析, ABAQUS

Abstract: The segmented bridge piers with post-tensioned prestressed joints have the advantages of short construction period, little impact on the environment and easy quality assurance, but their mechanical properties are still unclear. In order to obtain a prestressed axial compression ratio with good mechanical properties, a five-section assembled bridge pier with a section of assembled bridge piers is designed. The finite element model is built and simulated by ABAQUS. The simulation results are obtained. Comparing with the existing test results, the correctness of the simulation method is verified. Then the influence of different prestressed axial compression ratios on the mechanical properties of the segmented bridge pier is analyzed and compared. The results show that the axial compression ratio is 10%~20%. The structure has good mechanical properties. This research can provide a certain reference for the design of segmental bridge piers.

Key words: prestressed precast segmental bridge piers, pre-stressed axial compression ratios, mechanical performance, ABAQUS

中图分类号: 

  • TU318
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