南水北调中线京石段漕河渡槽结构简化计算  

Simplified structural calculation for Caohe River Aqueduct of Beijing-Shijiazhuang section of middle route of South-to-North Water Diversion Project

作　　者：孙凯[1] 李峰[2] 何真[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《人民长江》2013年第5期11-14,共4页Yangtze River

摘　　要：为了减小大跨度渡槽结构计算的难度和复杂度,为同类型大跨度渡槽的计算提供简化方法,同时验证漕河渡槽(30 m跨)安全监测仪器布设的合理性,对南水北调中线京石段应急供水工程漕河渡槽段30 m跨多侧墙渡槽进行了简化计算。根据渡槽的结构和受力特点,将30 m跨多侧墙渡槽简化成底板、次梁、主梁、墙体,并分别进行了结构简化计算,根据计算的弯矩确定了渡槽的不利断面。针对这些不利断面,应在应力或挠度较大的位置合理布设监测仪器,以实时反映渡槽的运行情况。In order to reduce the difficulty and complexity of the structural calculation of the aqueduct with a large span, and prove the correctness of the monitoring instrument layout for the Caohe River Aqueduct, a simplified calculation is conducted for the aqueduct （with a span of 30m） , a emergency water supply works of Beijing - Shijiazhuang section of the middle route of South - to - North Water Diversion Project. Based on the structural and mechanical characteristics of the aqueduct, the aqueduct with a span of 30m and multi - side walls is simplified into bottom - board, secondary girder, girder and walls. Adverse sections are determined according to the calculated bending moment of these structures. Accordingly, the monitoring instruments should be arranged reasonably at the positions where the stress or deflection are relatively large, so as to reflect the operation status of the aqueduct in real- time.

关 键 词：结构计算 渡槽 结构简化 南水北调中线工程 

分 类 号：TV67[水利工程—水利水电工程]