特高壓酒杯型鋼管塔真型試驗(yàn)研究
張子富1， 楊靖波1， 李清華1， 袁清泉2
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張子富1， 楊靖波1， 李清華1， 袁清泉2(1中國電力科學(xué)研究院，北京100055；2國核電力規(guī)劃設(shè)計(jì)研究院，北京100032)[摘要] ZB1酒杯型鋼管塔是我國第一基應(yīng)用于重冰區(qū)特高壓線路工程的單回路鐵塔。真型塔全高73m，重量120t，整塔采用鋼管結(jié)構(gòu)，僅在地線支架采用角鋼；鋼管最高材質(zhì)為Q345，全部采用插板和鍛造法蘭聯(lián)接。ZB1塔成功通過了大風(fēng)、安裝、斷線、不均勻冰等10個(gè)工況的試驗(yàn)檢驗(yàn)，結(jié)果表明：ZB1塔的位移滿足變形要求；應(yīng)變測試結(jié)果沒有超過構(gòu)件承載力，整體結(jié)構(gòu)安全合理；節(jié)點(diǎn)連接方案可行，鍛造法蘭及各種插板型式安全可靠。[關(guān)鍵詞] 重冰區(qū)；特高壓；酒杯型；鋼管塔；真型試驗(yàn)中圖分類號(hào)：TU392.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2012) S2-0403-05Full-scale test for cup-type steel tubular tower of UHV transmission lineZhang Zifu1, Yang Jingbo1, Li Qinghua1, Yuan Qingquan2(1 China Electric Power Research Institute, Beijing 100055, China; 2 State Nuclear Electric Power Planning Design & Research Institute, Beijing 100032, China)Abstract: The ZBl cup-type steel tubular tower with height 73 m and weight 120 t,is the first single-circuit tower for UHV transmission line in heavy icing area. Except the ground supports, steel tubulars are applied in whole tower. The plug-in boards and forging flanges are used in ZBl tower,and the highest strength of tubular steel is Q345. The ZBl tower had successfully passed ten tests under operation conditions including wind, installation, line broken and nonuniform ice, etc. The test results show that the real displacement and stress of tower ZBl can meet the requirement of deformations and member's carrying capacity respectively, and the whole structure is safe. The results show that the node connection pattem of cup-type steel tubular tower is feasible,and plug-in boards are all reliable.Keywords: heavy icing area; UHV; cup-type; steel tubular tower; full-scale test
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