南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2013年
1期
68-71
,共4页
李鹏云%陈波%张峰%王干军%宋春芳
李鵬雲%陳波%張峰%王榦軍%宋春芳
리붕운%진파%장봉%왕간군%송춘방
输电钢塔%变形监测%支座沉降%参数研究
輸電鋼塔%變形鑑測%支座沉降%參數研究
수전강탑%변형감측%지좌침강%삼수연구
transmission steel tower%deformation monitoring%support settlement%parametric investigation?
以某220 kV输电钢塔为实际工程背景,开展了结构支座沉降的监测与模拟.基于空间杆系的力学模型,对该塔建立了输电塔-导线有限元模型,结合对杆塔支座沉降监测结果,进行了结构受力分析模拟.研究表明,由于支座不均匀沉降的作用,将导致结构中部分杆件产生较大的应力,这对结构的安全造成了较大的隐患.
以某220 kV輸電鋼塔為實際工程揹景,開展瞭結構支座沉降的鑑測與模擬.基于空間桿繫的力學模型,對該塔建立瞭輸電塔-導線有限元模型,結閤對桿塔支座沉降鑑測結果,進行瞭結構受力分析模擬.研究錶明,由于支座不均勻沉降的作用,將導緻結構中部分桿件產生較大的應力,這對結構的安全造成瞭較大的隱患.
이모220 kV수전강탑위실제공정배경,개전료결구지좌침강적감측여모의.기우공간간계적역학모형,대해탑건립료수전탑-도선유한원모형,결합대간탑지좌침강감측결과,진행료결구수력분석모의.연구표명,유우지좌불균균침강적작용,장도치결구중부분간건산생교대적응력,저대결구적안전조성료교대적은환.
The monitoring and simulation on support settlement are actively carried out in this study by taking a real 220 kV transmission steel tower as a background. The finite element model of the transmission tower-line system are constructed based on the mechanical model of the spatial trusss system. The structural internal forces are analyzed through combining the monitoring results of tower support. The made observations indicate that some members deserve large stressess due to the effects of the uneven settlement of the support, which may induce large potential danger to the structure.