预应力闸墩颈缩体形研究  

Study on Slot Shape of Pre-stressed Pier

作　　者：李振龙 章胜玲 

机构地区：[1]上海勘测设计研究院,上海200434

出　　处：《科学技术与工程》2012年第25期6529-6531,6536,共4页Science Technology and Engineering

摘　　要：以某水电站溢洪道堰闸坝段中墩为研究对象,以ANSYS软件为平台对预应力闸墩在不同荷载组合工况下进行计算分析。针对闸墩颈部拉应力较大的实际受力情况,对预应力闸墩颈部采取颈缩措施。采取在长度、深度和高度三个方向颈缩的方案,并分别建立了有限元模型。对颈缩的长度、高度、深度在不同尺寸下的计算结果进行对比分析研究,确定最佳颈缩尺寸。其计算分析研究结果为工程设计提供参考,以利于改进和优化闸墩结构设计。The pier of weir gate dam section of hydroelectric spillway is the research object. With ANSYS soft- ware as a platform, prestressed pier was calculated and analyzed at different combination load conditions. The neck of prestressed pier needs to take measures of slot to reduce stress because there have a large force. Length, depth and height in three directions necking of the program are raked. And the finite element model are established sepa- rately, the calculation results of slot length, height, depth in different sizes are analyzed and studied comparative- ly. The calculation and analysis results provide a reference for engineering design, in order to improve and optimize the design of pier structure.

关 键 词：预应力闸墩 三维有限元 颈缩 

分 类 号：TV661[水利工程—水利水电工程]