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支架式單管塔節(jié)段體型系數(shù)風(fēng)洞試驗(yàn)研究
屠海明
摘 要

(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)

[摘要]對于支架式單管塔,根據(jù)《鋼結(jié)構(gòu)單管通信塔技術(shù)規(guī)程》(CECS 236∶2008)計(jì)算風(fēng)荷載時(shí),不考慮天線與筒體的相互影響,計(jì)算值比較保守。采用高頻動態(tài)測力天平技術(shù),對22種支架式單管塔節(jié)段的剛體模型進(jìn)行風(fēng)洞試驗(yàn),并將風(fēng)洞試驗(yàn)結(jié)果與采用《鋼結(jié)構(gòu)單管通信塔技術(shù)規(guī)程》(CECS 236∶2008)計(jì)算得到的理論計(jì)算值進(jìn)行對比。結(jié)果表明,根據(jù)風(fēng)洞試驗(yàn)得到的風(fēng)荷載都小于理論計(jì)算值,體型系數(shù)的綜合調(diào)整系數(shù)介于0-50~0-80之間。

[關(guān)鍵詞]支架式單管塔; 風(fēng)洞試驗(yàn); 體型系數(shù)

中圖分類號:TU359文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2018)13-0031-04

 

Wind-tunnel test for shape coefficient of monopole segments with direct antenna mounting

Tu Haiming

(Architectural Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China)

Abstract:The interaction of antenna mounting and monopole is generally ignored when the wind load of monopole with direct antenna mounting is calculated according to Technical specification for steel communication monopole (CECS 236∶2008), so the calculation value is conservative. The high frequency force balance (HFFB) technology was used to conduct wind\|tunnel test for rigid models of 22 kinds of  monopole segments with direct antenna mounting. The wind\|tunnel test results were compared with the theoretical calculations calculated using the Technical specification for steel communication monopole (CECS 236∶2008). The results show that the wind load obtained from the wind\|tunnel test is less than the theoretical calculation value, and the comprehensive adjustment coefficient of the shape coefficient is between 0-50 and 0-80.

Keywords:monopole with direct antenna mounting; wind-tunnel test; shape coefficient

 

作者簡介:屠海明,碩士,高級工程師,Email:tuhaiming2002@163.com。

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