PIJia-yue,ZHOUChuan,ZHOUZhi-qiang,et al.Design of River-crossing Water Supply Pipeline for Changshou Yangtze River No.2 Bridge in Chongqing[J].China Water & Wastewater,2025,41(8):54-58.
Design of River-crossing Water Supply Pipeline for Changshou Yangtze River No.2 Bridge in Chongqing
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第8期
Page:
54-58
Column:
Date of publication:
2025-04-17
- Keywords:
- river-crossing water supply pipeline; suspension bridge; expansion joint; water hammer; wind resistance performance
- Abstract:
- One of the primary methods for river?crossing water supply pipelines is to lay them along the main structure of the bridge. This approach offers several advantages, such as relatively low construction complexity and ease of maintenance. Changshou Yangtze River No.2 Bridge is a long-span suspension bridge spanning the Yangtze River. The total length of the main bridge and approach bridge is 1 401 m, with the main span being a single-span simply supported steel box girder suspension bridge measuring 739 m. Additionally, this project incorporates the water supply pipeline with diameter of DN500. In the event that the main bridge has not reserved a conduit position, the water supply pipeline was arranged within the median strip. Finite element analysis software and wind tunnel tests demonstrate that the placement of the water supply pipeline does not exert significant influence on the wind resistance performance of the bridge. The analysis of the expansion and deformation for both the pipeline and the bridge indicates a total maximum expansion of 2 073.12 mm. Based on this analysis, the expansion joints and supports were strategically positioned. The implementation of optimization designs such as preventing water hammers and pipe bursting, and other measures established favorable conditions to ensure the smooth progress of project construction. The project has operated normally since its completion, and the associated design insights can serve as a valuable reference for similar projects.
Last Update:
2025-04-17