大型预应力混凝土闸墩结构模型试验研究  

Model Experimental Study on Large-scale Pre-stressed Concrete Pier Structure

作　　者：李树山[1,2] 解伟[2] 魏鹏[2] 闫飞[2] 张世宝[2] 

机构地区：[1]郑州大学环境与水利学院,河南郑州450002 [2]华北水利水电学院,河南郑州450011

出　　处：《水力发电》2010年第5期76-78,共3页Water Power

基　　金：国家自然科学基金项目(50779018);河南省科技创新杰出人才计划(094200510011);河南省创新型科技团队支持计划

摘　　要：对蒲石河电站大型预应力混凝土闸墩结构进行仿真模型试验研究。根据模型试验测试和有限元计算结果,分析不同的预应力筋张拉工序对闸墩颈部预压效果的影响规律,确定合理的预应力筋张拉工序;研究双侧弧门关闭工况下闸墩颈部受力状态;研究在单侧弧门关闭工况下闸墩结构的超载能力,提出需要改进的结构设计建议。The model test for Pushihe Pumped Storage Power Station pre-stressed concrete pier was carried out and the numerical simulation was conducted by three-dimensional finite element.The reasonable tension procedure is proposed after analyzing the effect of different strands tensioning procedure on pier neck stress.The improvements on pier structure design are proposed after analyzing the pier neck stress under the operating condition of two ace gates closed and the over-load capacity of pier structure under the operating condition of single ace gate closed.

关 键 词：闸墩 预应力混凝土 模型试验 应力 超载能力 蒲石河抽水蓄能电站 

分 类 号：TV32[水利工程—水工结构工程]