高架桥排水设施优化探讨  

Discussion on Drainage Facilities Optimization of Urban Viaduct

作　　者：孙明亮 李一鸣[2] 刘超 王化伟 陈明[2] Sun Mingliang;Li Yiming;Liu Chao;Wang Huawei;Chen Ming(Shandong Provincial Communication Planning and Design Institute Group Co.,Ltd.,Jinan 250101,China;Southeast University-Monash University Suzhou Joint Graduate School,Suzhou 215124,China;Shandong Luqiao Group Co.,Ltd.,Jinan 250101,China;Jinan Zhangqiu District Construction Investment Co.,Ltd.,Jinan 250200,China)

机构地区：[1]山东省交通规划设计院集团有限公司,山东济南250101 [2]东南大学-蒙纳士大学苏州联合研究生院,江苏苏州215124 [3]山东省路桥集团有限公司,山东济南250101 [4]济南市章丘区建设投资有限公司,山东济南250200

出　　处：《市政技术》2023年第2期53-58,97,共7页Journal of Municipal Technology

摘　　要：高架桥在缓解城市交通压力方面发挥了重要作用。然而,作为高架桥附属设施的排水工程容易被忽视,存在设计标准低、排水能力弱、系统安全性差等问题,给城市生命线系统的安全运行带来了潜在风险。根据GB 50014—2021《室外排水设计标准》与CJJ 11—2011《城市桥梁设计规范》(2019年版)进行了高架桥排水设计计算,认为现行排水设施设计标准有待提高。为了最大程度保障高架桥排水安全,提出了增加雨水口数量、改变雨水口形式、严控悬吊管安装、丰富收水形式、调整雨水流态、预留超负荷排水溢流口和采用新型专用管材等措施优化高架桥排水设施,提高其排水效能;此外,强调了与高架桥排水相关的桥梁总体设计要点,为今后高架桥建设提供了新思路。Viaducts have a critical role in relieving traffic pressure of cities. However, the drainage system which is auxiliary facilities of urban viaduct is easy to be neglected. Because of low design standard, insufficient drainage capacity and poor system safety, it causes potential risks of the urban lifeline system safety. Based on Design Standard for Outdoor Drainage GB 50014—2021 and Code for Design of Urban Bridges CJJ 11—2011(2019 edition), the design calculations of drainage were conducted and the current design standards of drainage facilities is thought to be improved. In order to the greatest ensure the drainage safety of urban viaduct, the optimization measures of increasing the number of inlets, changing the type of rainwater inlet strictly controlling the installation of suspension pipe,enriching the water collection forms, adjusting the rainwater flow pattern, reserve overload drainage overflow and adopting new special pipes were proposed to improve the drainage efficiency;The overall design points of the viaduct related to runoff drainage are emphasized. This paper provides new ideas for the construction of viaduct in the future.

关 键 词：高架桥 排水设施 雨水水力计算 优化措施 

分 类 号：TU992[建筑科学—市政工程]