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（1 中國電力科學(xué)研究院， 北京 100055； 2 國網(wǎng)河北省電力公司， 石家莊 050021）
［摘要］山區(qū)220kV雙回錯層橫擔(dān)直線塔CCHDT1-30采用一種新的技術(shù)和設(shè)計理念，即通過將桿塔上下山坡側(cè)導(dǎo)、地線橫擔(dān)進(jìn)行錯層布置，降低下山坡側(cè)導(dǎo)線對地距離，充分利用上、下山坡側(cè)橫擔(dān)的有效高度，提高線路的繞擊耐雷水平。在CCHDT1-30塔結(jié)構(gòu)設(shè)計過程中，對桿塔塔型優(yōu)化、桿塔內(nèi)力等進(jìn)行研究，完善桿塔設(shè)計。CCHDT130塔成功通過了真型試驗，說明雙回錯層橫擔(dān)直線塔結(jié)構(gòu)設(shè)計合理，能有效傳遞設(shè)計荷載，可在山區(qū)輸電線路工程中推廣使用。
［關(guān)鍵詞］山區(qū)； 錯層橫擔(dān)； 直線塔； 真型試驗
中圖分類號：TU392-6，P315-39文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)17-0066-05
Research on design and full-scale test for 220kV double-circuit staggered cross-arms straight line tower in mountainous area
Fang Zhenggang1, Zhang Zifu1, Wu Kun2, Yang Zhen1, Huang Peng1
(1 China Electric Power Research Institute, Beijing 100055, China; 2 State Grid Hebei Electric Power Company, Shijiazhuang 050021, China)
Abstract:A 220kV double-circuit staggered cross-arms straight line tower CCHDT1-30 adopting new technique and design concept in the mountainous area can improve the lightning protection performance of shielding failure of the transmission line by making staggered disposal of the conductor and earth-wire crossarm of the tower on uphill slope and downhill slope to lower the height of the downhill side conductor to the ground and taking full use of the effective height of tower on both uphill slope and downhill slope. During the design process of CCHDT1-30 tower structure, the tower type optimizations, the internal force of tower and so on were studied, and the tower design were perfected. The tower CCHDT1-30 successfully passed full-scale test, indicating that the main structure of the double-circuit staggered cross-arms straight line tower is reasonable, and the design load can be transferred effectively, and this new technique can be further applied in mountain transmission line project.
Keywords:mountainous area; staggered cross-arm; straight line tower; full-scale test
作者簡介：房正剛，碩士，工程師，Email：mexie1204@163.com。
