4 000万 t/a炼化一体化项目管道登陆栈桥建设方案对比
DOI:
CSTR:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


Comparison of landing trestle construction schemes of pipelines of 40 million t/a refinery integration project
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为研究不同建设方案对于管道登陆栈桥的影响,结合4000万t/a炼化一体化项目的工程案例,对比上部结构采用预应力混凝土箱梁结构与大跨钢管系杆拱桥+预制小箱梁结构两种方案,从经济性、工程量以及结构耐久性和后期维护等多方面综合考虑,提出推荐方案及施工技术要点。结果表明:通常采用的预应力混凝土箱梁结构施工方便、桩基数量多、安全性较高,且此结构自防腐效果好,后期维护量较少。综合考虑,当产品管道需要登陆栈桥时,对于栈桥方案上部结构设计宜优先使用预应力混凝土箱梁结构。对预应力混凝土箱梁结构进行设计时,应结合实际工程,合理控制预应力张拉时间,准确分析结构的受力特点,采取适宜的预应力技术能够保证施工作业与实际环境相匹配。

    Abstract:

    To study the influence of different construction schemes on the landing trestle of the pipeline,we combine with the actual engineering case of 40 million t/a refinery integration project,compare the two schemes of the upper structure including the pre-stressed concrete box girder structure and the large-span steel pipe tie-bar arch bridge + prefabricated small box girder structure,carry out the comprehensive consideration from the aspects of economy,the quantity of work,the structural durability,and the late maintenance,and propose the recommended scheme and key points of construction technology. The results show that generally it is convenient to use the pre-stressed concrete box girder structure for construction,and the number of pile foundations is more and safer. Moreover,this structure has a good self-corrosion protection effect and less maintenance in the later period. Considering comprehensively,when the product pipeline needs to land on the trestle,the pre-stressed concrete box girder structure should be preferred for the upper structure design of the trestle scheme. When designing the structure of the pre-stressed concrete box girder,it is necessary to reasonably control the pre-stress tension time,accurately analyze the stress characteristics of the structure and adopt appropriate pre-stress technology to ensure the suitability of construction work and the actual environment.

    参考文献
    相似文献
    引证文献
引用本文

蒋腊梅,冯 浩,熊 峰,等.4 000万 t/a炼化一体化项目管道登陆栈桥建设方案对比[J].水运工程,2021(5):102-107.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2021-05-12
  • 出版日期:
文章二维码