水力式升船机塔柱结构耦联体系流固耦合地震动响应分析  

Analyses on seismic response of fluid-structure interaction for tower-column structure coupling system of hydraulic ship lift

作　　者：郭博文 赵兰浩[3] 常芳芳[1,2] 王荆[1,2] GUO Bowen;ZHAO Lanhao;CHANG Fangfang;WANG Jing(Yellow River Institute of Hydraulic Research,Zhengzhou 450003,Henan,China;Research Center on Levee Safety and Disaster Prevention,Ministry of Water Resources of the P.R.C.,Zhengzhou 450003,Henan,China;Hohai University,Nanjing 210098,Jiangsu,China)

机构地区：[1]黄河水利科学研究院,河南郑州450003 [2]水利部堤防安全与病害防治工程技术研究中心,河南郑州450003 [3]河海大学,江苏南京210098

出　　处：《水利水电技术（中英文）》2021年第1期51-63,共13页Water Resources and Hydropower Engineering

基　　金：黄河水利科学研究院科技发展基金专项项目(黄科发201902);黄河水利科学研究院基本科研业务费专项资金资助项目(HKY-JBYW-2019-04)。

摘　　要：为了探究水力式升船机塔柱结构耦联体系流固耦合地震动响应规律,基于ADINA有限元分析软件,建立了三维水力式升船机塔柱结构耦联体系概化模型,探究了竖井内水深、承船厢所处位置以及流固耦合作用等因素对塔柱结构耦联体系地震动响应的影响规律,提出了水力式升船机塔柱结构耦联体系流固耦合地震动响应分析方法,并结合景洪水电站工程实例,研究了竖井内水体和承船厢位置对塔柱结构动力响应的影响。结果表明:(1)竖井内水体增大了塔柱结构地震动响应,且水深越深影响越大;(2)承船厢所处位置对升船机塔柱结构动力响应影响可忽略不计;(3)竖井内最高水位运行工况为塔柱-浮筒-承船厢-水体耦联体系地震作用下的最不利运行工况,该工况下系统内流固耦合作用不容忽视;(4)地震荷载作用下,竖井内水体的存在增大了景洪水电站水力式升船机塔柱结构地震动响应,且水深越深影响越大。In order to explore the law of the seismic response of fluid-structure interaction for tower-column structure coupling system of hydraulic ship lift,a 3-D generalized model of tower-column structure coupling system of hydraulic ship lift is established with ADINA finite element analysis software,and then the laws of the influences from the factors of the water depth inside the shaft and the location of the ship reception chamber as well as the fluid-structure interaction on the seismic response of the fluid-structure interaction of the tower-column structure coupling system are explored,thus a method for analyzing the seismic response of the fluid-structure interaction for the tower-column structure coupling system of hydraulic ship lift is put forward,while the influences from the water depth inside the shaft and the location of the ship reception chamber on the dynamic response of the tower-column structure are studied in combination with the actual engineering case of the ship lift for Jinghong Hydropower Station,the results show that(1)the seismic response of the tower-column structure is enlarged by the water body inside the shaft,while the deeper the water depth is,the larger the influence is to be;(2)the influence from the location of the ship reception chamber on the dynamic response of the tower-column structure of the ship lift can be negligible;(3)the highest water level operation condition inside the shaft is the most unfavorable operation condition for the tower-column--pontoon--ship reception chamber--water body coupling system under earthquake action,while the fluid-structure interaction inside the system cannot be ignored under that operation condition;(4)under the effect of seismic load,the existence of the water inside the shaft increases the seismic response of the tower-column structure of the hydraulic ship lift of Jinghong Hydropower Station,while the deeper the water depth is,the greater the influence is to be.

关 键 词：水力式升船机 耦联体系 竖井 流固耦合 地震动响应 

分 类 号：TV691[水利工程—水利水电工程]