预应力闸墩锚固形式研究
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摘要
本文对某工程坝身泄水建筑物的预应力闸墩进行三维有限元计算,对比分析闸墩上游预留竖井式和胶结式内锚头两种锚固形式的应力分布特点;经过综合比较,推荐最终采用的锚固形式,为闸墩结构设计提供依据,对工程设计和施工具有参考价值。
Based on practice of prestressed pier design of certain project,the 3D FEM computation of the prestressed pier in the flood discharge buildings of some double curvature arch dam is carried out.The stress distribution has been compared between the two forms of anchorage: obligating silo in upward side of the pier and cementing the inside anchor.The computation has shown the stress distribution of the two anchorage forms before and after applying the prestress,which is helpful to the design and construction of similar projects.The final anchorage form adopted is recommended after synthetical comparison.
Based on practice of prestressed pier design of certain project,the 3D FEM computation of the prestressed pier in the flood discharge buildings of some double curvature arch dam is carried out.The stress distribution has been compared between the two forms of anchorage: obligating silo in upward side of the pier and cementing the inside anchor.The computation has shown the stress distribution of the two anchorage forms before and after applying the prestress,which is helpful to the design and construction of similar projects.The final anchorage form adopted is recommended after synthetical comparison.
引文
[1]马吉明,逄阿强,佟志强.闸墩预应力锚索新形式的探索[J].水力发电学报,2004,(6):79~83.
[2]杨光伟,杨秀国,巫德胜等.二滩拱坝中孔闸室环形预应力锚索的施工[J].水电站设计,1998,(9):52~57.
[3]戴益华.漫湾水电站表孔预应力闸墩的结构设计[A],水工预应力锚固技术论文集[C].北京:地震出版社,1997:5~11.
[4]王宏硕主编.水工建筑物专题部分[M].北京:水利电力出版社,1991.
[5]周建新,谢德浚,黄云生.岩滩水电站预应力闸墩结构设计[A],水工预应力锚固技术论文集[C].北京:地震出版社,1997:35~40.
[2]杨光伟,杨秀国,巫德胜等.二滩拱坝中孔闸室环形预应力锚索的施工[J].水电站设计,1998,(9):52~57.
[3]戴益华.漫湾水电站表孔预应力闸墩的结构设计[A],水工预应力锚固技术论文集[C].北京:地震出版社,1997:5~11.
[4]王宏硕主编.水工建筑物专题部分[M].北京:水利电力出版社,1991.
[5]周建新,谢德浚,黄云生.岩滩水电站预应力闸墩结构设计[A],水工预应力锚固技术论文集[C].北京:地震出版社,1997:35~40.
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