基于MIDAS对三屯河水库溢洪道拱基础结构稳定性及配筋复核分析  被引量:1

Stability and reinforcement review analysis of spillway arch foundation of Santunhe Reservoir based on MIDAS

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作  者:郝杰[1] Hao Jie(Xinjiang Water Conservancy and Hydropower Survey and Design Research Institute,Urumqi 830000,Xinjiang)

机构地区:[1]新疆水利水电勘测设计研究院,乌鲁木齐830000

出  处:《吉林水利》2022年第2期39-42,共4页Jilin Water Resources

摘  要:拱结构主要以桥梁的形式出现在交通工程中,在水工结构作为底部基础较为少见。随着使用年限的增加不可避免的需要对水工结构进行除险加固,本文通过三维有限元分析软件Midas对三屯河水库溢洪道泄槽底部拱基础进行结构分析和配筋复核。计算结果表明:拱结构运行期在自重及新建泄槽水重作用下,拱顶最大竖向位移0.75mm,主拱最大拉应力为0.41MPa,腹拱最大拉应力为0.97MPa,均未超过C20混凝土抗拉强度,结构自身稳定,配筋满足规范要求,为下一步除险加固设计工作提供了指导意见。Arch structure mainly appears in traffic engineering in the form of bridge,but it is rare in hydraulic structure as bottom foundation.With the increase of service life,it is inevitable to eliminate and strengthen the hydraulic structure.In this paper,the structural analysis and reinforcement of the arch foundation at the bottom of the spillway of Santunhe Reservoir are carried out through the three-dimensional finite element analysis software MIDAS.The calculation results show that during the operation of the arch structure,under the action of dead weight and newly-built discharge trough water weight,the maximum vertical displacement of the vault is 0.75mm,the maximum tensile stress of the main arch is 0.41MPa,and the maximum tensile stress of the web arch is 0.97MPa,which do not exceed the tensile strength of C20 concrete,the structure itself is stable.And the reinforcement meets the requirements of the code,which provides guidance for the next step of danger elimination and reinforcement design.

关 键 词:有限元 泄槽 拱结构 配筋复核 

分 类 号:TU471[建筑科学—结构工程]

 

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