南流江预应力连续梁式渡槽抗震性能  

Seismic performance of pre-stressed continuous girder-type aqueduct in Nanliu River

作　　者：刘惠娟[1] 赖成联[2] 姜士博 谢开仲 LIU Huijuan;LAI Chenglian;JIANG Shibo;XIE Kaizhong(Guangxi Vocational College of Water Resources and Electric Porcer,Nanning 530023,China;Guangxi Water&Porwer Design Institute Co.,Itd.,Naning 530023,China;Guangxi Unirersity,Nanning 530004,China)

机构地区：[1]广西水利电力职业技术学院,南宁530023 [2]广西水利电力勘测设计研究院有限责任公司,南宁530023 [3]广西大学土木建筑工程学院,南宁530004

出　　处：《南水北调与水利科技（中英文）》2024年第S01期196-203,共8页South-to-North Water Transfers and Water Science & Technology

摘　　要：预应力连续梁式渡槽具有整体受力条件好、施工工艺成熟且方便的优势,在实际工程中运用广泛,其具有良好的抗震性能是保证工程安全运行的关键。以采用预应力连续梁式渡槽形式的南流江大渡槽为例,通过Midas-civil分析软件建立有限元模型并施加拟合生成的地震波,对渡槽的抗震性能进行研究。结果表明,在拟合生成的地震波与场地类别、分区特征周期相近的人工地震波E1、E2作用下,南流江大渡槽的顺桥向及横桥向的桥墩强度验算和变形均满足要求,具有安全可靠的抗震性能。Pre-stressed continuous girder-type aqueduct is widely used in actual projects,which has the advantages of good overall stress condit ions,mature and convenient construction technology.Its good seismic performance is the key to ensure the safe operation of the project.The pre-st ressed continuous girder-type aqueduct in the Nanliu River is taken as an example.The seismic performance of the aqueduct was investigated by making a finite element model and applying the fitted generated seismic waves through Midas-civil analysis software.The analysis results show that the artificial seismic waves E1 and E2 are similar to the site category and zoning characteristic period,which are generated by fitting and act on the aqueduct.The st rength calculat ion and deformation of the piers in the downst ream and cross-bridge directions of the Nanliu river aqueduct meet the requirements,and have safe and reliable seismic per formance.

关 键 词：南流江大渡槽 预应力连续梁式渡槽 抗震性能 数值计算 水库 

分 类 号：TV131.61[水利工程—水力学及河流动力学]