- 摘 要
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（1 中國電力科學(xué)研究院有限公司， 北京 100192； 2 國核電力規(guī)劃設(shè)計(jì)研究院有限公司， 北京 100095； 3 國網(wǎng)冀北電力有限公司， 北京 100053）
［摘要］為研究直線旋轉(zhuǎn)輸電角鋼塔轉(zhuǎn)換層結(jié)構(gòu)的承載能力，對該結(jié)構(gòu)足尺轉(zhuǎn)換層節(jié)點(diǎn)進(jìn)行了承載力試驗(yàn)研究。以1個(gè)直線旋轉(zhuǎn)塔轉(zhuǎn)換層節(jié)點(diǎn)試件作為研究對象，通過足尺轉(zhuǎn)換層節(jié)點(diǎn)試件的承載力試驗(yàn)，獲取其變形及應(yīng)變在荷載作用下的變化規(guī)律，研究直線旋轉(zhuǎn)塔轉(zhuǎn)換層的承載力和受力機(jī)理。研究表明：直線旋轉(zhuǎn)塔轉(zhuǎn)換層節(jié)點(diǎn)試件在荷載作用下的最不利位置出現(xiàn)在轉(zhuǎn)換層連接節(jié)點(diǎn)處；試件各桿件在試驗(yàn)荷載下處于彈性狀態(tài)，其承載力性能和變形性能符合設(shè)計(jì)要求，有較好的安全儲備；轉(zhuǎn)換層剛度與整體試件剛度匹配較好，協(xié)同工作性能好。
［關(guān)鍵詞］直線旋轉(zhuǎn)輸電角鋼塔； 轉(zhuǎn)換層節(jié)點(diǎn)； 承載力； 變形； 應(yīng)變
中圖分類號：TU391文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)22-0028-05
Experimental study on load-bearing capacity of conversion layer of linear rotating transmission angle tower in restricted mountainous area
Fang Zhenggang1, Mo Zenglu2, Luo Yi3, Yang Zhen1
(1 China Electric Power Research Institute, Beijing 100192, China; 2 State Nuclear Electric Power Planning and Design & Research Institute Co., Ltd., Beijing 100095, China;3 State Grid Jibei Electric Power Company Limited, Beijing 100053, China）
Abstract:In order to study the bearing capacity of the conversion layer structure of linear rotating transmission angle tower, experimental study on the bearing capacity of the full-scale conversion layer node of the structure was carried out. Taking a specimen of a conversion layer node of a linear rotating tower as a research object, through the test of bearing capacity of a full-scale conversion layer node specimen, the variation laws of its deformation and strain under load were obtained to study the bearing capacity of the conversion layer of the linear rotating tower and stress mechanism. The research shows that the most unfavorable position of the specimen in the conversion tower of the linear rotating tower appears at the connection node of the conversion layer. The rods of the specimen are in the elastic state under the test load and the bearing capacity and deformation meet the design requirements，which has a good safety reserve. The stiffness of the conversion layer matches well with the stiffness of the whole test piece and the work performance is good.
Keywords:linear rotating transmission angle tower; transition layer node; bearing capacity; deformation; strain
*國網(wǎng)公司2017年依托工程基建新技術(shù)研究項(xiàng)目（山區(qū)受限塔位單回路直線旋轉(zhuǎn)塔的應(yīng)用研究GCB11202703465）。
作者簡介：房正剛，碩士，Email：mexie1204@163.com。
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