钢-混凝土组合式风力发电塔筒不同环境下地震响应  

Analysis of Seismic Response of Steel-concrete Combined Wind Power Tower Tube in Different Environments

作　　者：张磊 张璇 王皓 靳瀚杰 刘昕冉 ZHANG Lei;ZHANG Xuan;WANG Hao;JIN Hanjie;LIU Xinran(Handan Earthquake Monitoring Center,Handan 056000,China)

机构地区：[1]邯郸市地震监测中心,河北邯郸056000

出　　处：《华北地震科学》2023年第4期79-83,共5页North China Earthquake Sciences

摘　　要：为研究不同场地下钢-混凝土组合型风能发电塔筒类结构的抗震性能,利用有限元软件构建一个风电场现役140 m钢-混凝土组合式塔架精细化模型,针对平原地震和山地地震,选取符合条件的地震波对钢-混凝土组合式塔筒进行非线性时程分析。结果表明,山地地震对于塔筒的各段加速度值均大于平原地震作用,且钢段中上部的响应也高于平原地震,更易引起组合式塔筒的损伤和破坏。The upper part of the steel-concrete composite wind power tower is a pure steel column,and the bottom of it is a concrete tower.Due to its significant mass and strength changes in the longitudinal direction,the seismic response of this tower structure is significantly different from the original pure steel tower.To study the seismic performance of this kind of structure at different sites,the finite element software is used to build a refined numerical model of the existing 140 m steel concrete composite tower,and the mountain and plain Seismic wave are selected to conduct nonlinear time history analysis of the steel concrete composite tower.The analysis results indicate that the acceleration values of each section of the tower during mountain earthquakes are greater than those during plain earthquakes,and the response of the upper and middle parts of the steel section is also higher than that of plain earthquakes,which is more likely to cause damage and destruction to the combined tower.

关 键 词：钢-混凝土组合式塔筒结构 地震响应 山地地震 平原地震 抗震性能 

分 类 号：P315.923[天文地球—地震学]