- 摘 要
-
（1 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院（集團(tuán)）有限公司， 上海 200092；2 同濟(jì)大學(xué)建筑工程系， 上海 200092； 3 青島中天斯壯科技有限公司， 青島 266399）
［摘要］提出了一種新型高強(qiáng)聚酯絕緣柱腳，將圓筒形高強(qiáng)聚酯絕緣體作為抗壓組件，將高強(qiáng)聚酯筋作為抗拉組件，同時對高強(qiáng)聚酯筋施加一定的預(yù)拉力，從而提高整個絕緣柱腳的抗側(cè)剛度，使其不僅易于抗壓也易于抗彎和抗拉，改善了整個絕緣柱腳的多向受力性能，提高了其韌性。針對一實(shí)際工程，進(jìn)行了結(jié)構(gòu)柱腳設(shè)計(jì)以及相應(yīng)的結(jié)構(gòu)實(shí)際受力性能試驗(yàn)。試件為足尺中波塔絕緣柱腳，按實(shí)際施工方法組裝，依據(jù)結(jié)構(gòu)受力分析的結(jié)果，分為壓剪和拉剪兩種工況加載。通過理論及試驗(yàn)研究，分析了新型絕緣柱腳的受力性能，并推廣到實(shí)際工程中應(yīng)用。
［關(guān)鍵詞］聚酯絕緣體; 聚酯筋; 預(yù)應(yīng)力; 結(jié)構(gòu)試驗(yàn)
中圖分類號：TU359文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)14-0059-05
Performance study on new insulating column foot of medium wave tower
Sun Yongliang1, Dong Hanlin2, Wang Tonghua3
（1 Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China; 2 Department of Structural Engineering, Tongji University, Shanghai 200092, China; 3 Qingdao Sinostro Technology Co., Ltd., Qingdao 266399, China)
Abstract:A new column foot with cylindrical high-strength polyester insulator was proposed. Cylindrical high-strength polyester insulator acted as compression member and high-strength polyester tendon acted as tension member. At the same time, certain pre-stress was exerted on the high-strength polyester tendon to increase the overall lateral stiffness of the insulating column foot. The new column foot was easy to resist compression, bending and tensile forces and the multidirectional mechanical performance of the overall column foot was improved as well as toughness. Structural column foot design and corresponding actual mechanical performance test of the new column foot were conducted based on a practical project. The test specimen was the full-scale insulating column foot of medium wave tower and assembled according to actual construction methods. According to structural mechanical analysis results, two working conditions of compression shear and tensile shear were used to load. Through theoretical and experimental studies, mechanical performance of the new type insulating column foot was analyzed and the column foot was promoted to application in practical engineering.
Keywords:polyester insulator; polyester tendon; pre-stress; structural test
作者簡介：孫永良，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: 13795371936@163.com。
- 下載地址
-
