Analysis on Axial Stresses of Crossbars on Aqueduct

摘要：

　　By use of finite element method,the axial stresses of crossbars on the top of a simply supported rectangular-sectioned aqueduct were calculated in this paper.Three factors were considered,namely height-width ratio,water depth and crossbars spacing.The results show that,most crossbars are in compression when the height-width ratio of aqueduct cross-section is small,and with the height-width ratio increasing,the axial forces of crossbars change from compression to tension;Under a certain height-width ratio,when water depth is relatively small,most crossbars are in compression,and with the increase of water depth,axial forces of crossbars change from compression to tension; big axial tensile force is harmful to the rectangular cross-section floor (mid-span),but favorable to the side wall bottom.The obtained change rules of axial force and the influence of axial force on aqueduct body stress can be referenced to aqueduct design.

关键词： aqueduct crossbar axial stress height-width ratio water depth

作者: Xinli Bai Jiangyan Li Bing Ma

作者单位: North China University of Water Resources and Electric Power, Zhengzhou 450011, China

会议类型: 国际会议

会议名称: The International Conference on Civil Engineering, Architecture and Sustainable Infrastructure (2012土木建筑与可持续基础设施工程国际会议(ICCEASI2012))

会议地点: 郑州

会议语种:英文

页码: 329-332

在线出版日期: 2012-09-22（万方平台首次上网日期，不代表论文的发表时间）