大藤峡水利工程泄水闸高孔预应力闸墩设计

Design of prestressed pier with high hole for sluice of Datengxia Water Control Project

大藤峡水利枢纽工程泄水闸高孔为开敞式实用堰,工作闸门总推力巨大,闸墩采用预应力结构。预应力闸墩与钢筋混凝土锚块的连接型式采用简单结构,闸墩平面主锚索采用平行布置方式,立面上扇形放射状布置。文中通过三维有限分析计算,验证了闸墩应力水平满足设计要求。

The high hole of the sluice of Datengxia Water Control Project is an open type practical weir,the working sluice gate has great thrust force,and the sluice pier is prestressed.The connection type of prestressed pier and reinforced concrete anchor block adopts simple structure,the main anchor cable of the plane of the pier adopts parallel arrangement,and the radial fan arrangement on the facade.Through three-dimensional finite analysis and calculation,the stress level of the pier is verified to meet the design requirements.