九龙水库倒虹吸管道桥受力及计算  

Analysis on stress and calculation of inverted siphon pipeline bridge in Jiulong Reservoir

作　　者：柳洪亮[1] 翟学志 LIU Hongliang;ZHAI Xuezhi(Hebei Institute of Investigation&Design of Water Conservancy&Hydropwer Group Limited,Tianjin 300220,China)

机构地区：[1]河北省水利水电勘测设计研究院集团有限公司,天津300220

出　　处：《水科学与工程技术》2024年第3期67-70,共4页Water Sciences and Engineering Technology

摘　　要：南盘江倒虹吸管道桥位于新建水库的库底,除按常规桥梁设计外,水下桥梁还需重点研究水库低水位时水面浪压力、不同工况下动水冲击力及水库初次蓄水时水面漂浮物偶然作用等水平推力的影响。通过不同荷载标准组合比较,考虑建设期及运行期最不利工况下桥梁受力情况,对结构尺寸及配筋进行计算。同时,对桥梁上部结构的抗浮性和抗倾覆性进行演算,以确保水下桥梁结构的安全性及稳定性。The Nanpan River inverted siphon pipeline bridge is located at the bottom of the newly built reservoir,the underwater bridge also needs to study the effects of the wave pressure at the low water level,the dynamic water impulse force under different working conditions and the accidental action of the floating matter on the water surface during the first impoundment of the reservoir.Based on the comparison of different load combinations,the structural dimension and reinforcement of the bridge under the most unfavorable conditions during construction and operation are calculated.At the same time,the anti-floating and anti-overturning of the bridge superstructure are calculated to ensure the safety and stability of the underwater bridge structure.

关 键 词：倒虹吸 库底管道桥 荷载标准 结构计算 

分 类 号：TV672[水利工程—水利水电工程]