SEISMIC RESPONSE ANALYSIS FOR UHVDC AIR TYPE SMOOTHING REACTORS
Air-type smoothing reactor is one of the essential equipments of ultra high voltage direct current (UHVDC) power transmission grids. Currently,for the seismic design of smoothing reactors there are not unified criterions among the corresponding codes. Most codes recommend two analyzing methods,i.e. response spectrum analysis and time-history analysis,for the latter either ground motion acceleration waves or five sine beats at resonant frequency are employed as seismic input. In the paper,an ANSYS model of a real UHVDC air type smoothing reactor is established and its seismic behaviour analyzed using different ground motion accelerations and five sine beats at resonant frequency. The influence of different seismic inputs on the seismic response of such reactors is discussed,and great differences in seismic stresses are found between the five sine beats and the other seismic inputs showing that the five sine beats input is too conservative. Finally,based on the analyses suggestions to seismic design of such reactors are put forward.
Seismic response Air-type smoothing reactor UHVDC Five sine beats
Ying-Hua Yang Yan-Jun Liu
School of Civil Engineering,Xian University of Architecture and Technology,Xian 710055,P.R. China The Research Institute of BaoSteel,Baosteel Group Corporation,Shanghai 201900,P.R.China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
68-72
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）