±800kV同塔双回输电线路十字组合角钢塔设计  

DESIGN FOR THE CRUCIFORM ANGLE TOWER APPLIED IN DOUBLE-CIRCUIT±800 KILOVOLT TRANSMISSION LINES ON THE SAME TOWER

作　　者：韩军科[1] 张春蕾[2] 耿景都[1] 王虎长[3] 文凡[3] 

机构地区：[1]中国电力科学研究院,北京100055 [2]中国电力工程顾问集团华北电力设计院工程有限公司,北京100120 [3]中国电力工程顾问集团西北电力设计院工程有限公司,西安710075

出　　处：《工业建筑》2016年第8期21-27,共7页Industrial Construction

基　　金：国家自然科学基金项目(51408569);国家电网公司科技项目

摘　　要：针对河西走廊通道较为拥挤的区域,对±800 k V同塔双回输电铁塔的荷载取值及结构设计进行分析。±800 k V同塔双回输电铁塔SJ30102的设计采用十字组合角钢的相关研究成果,包括填板布置形式、主斜材新型连接形式、稳定承载力计算方法、填板及螺栓计算方法等。结果表明:随机振动理论计算的横担风振系数不一定大于相应高度处塔身风振系数,风振系数的大小取决于分段质量与迎风面积的比值;采用一字分离式填板塔较采用十字分离式或采用十字焊接式填板塔轻约3%。SJ30102真型塔的7个试验工况验证了十字组合角钢相关研究成果的合理性和可靠性。Taking the more crowed area of the Hexi Corrido as the research object, the load and structure design of the ±800 kV double-circuit transmission tower were analyzed. Some research results of cruciform angle section were adopted to the design of the ±800 kV double circuit transmission tower （SJ30102） , including the filler plate arrangement form, new connection forms between leg members and diagonal members, calculation method of stability bearing capacity, computing measures of battens, bolts and so on. The results showed that wind-induced vibration coefficient of cross-arm, which depends on the ratio of subsection quality and windward area, calculated based on random vibration theory was not sure more than that of tower body on the corresponding height. Morever,line-shape separate filler plate was slight less than cruciform separate filler plate and cruciform welded filler plate to reduce about 3% of tower weight. In addition,using 7 testing conditions to analyse the full-scale testing tower, the related research results of cruciform angle section member were verified to be reasonable and reliable.

关 键 词：同塔双回输电线路 风振系数 十字组合角钢塔 计算方法 真型试验 

分 类 号：TU391[建筑科学—结构工程]