- 摘 要
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（同濟(jì)大學(xué)建筑工程系， 上海 200092）
［摘要］橫膈是保證多邊形格構(gòu)式塔整體空間穩(wěn)定必不可少的構(gòu)件，當(dāng)前有關(guān)技術(shù)文件對橫膈面設(shè)置間隔和橫膈設(shè)置形式要求不一。利用有限元軟件SAP2000建立了不同橫膈面設(shè)置間隔、不同橫膈形式的角鋼通信塔架整體模型，進(jìn)行了各塔型模態(tài)在風(fēng)荷載作用下主要受力構(gòu)件的應(yīng)力比和塔架用鋼量的對比分析。研究表明：在無變坡的塔段中可適當(dāng)增大橫膈面設(shè)置間隔，且可用預(yù)應(yīng)力柔性交叉橫膈替代剛性橫膈布置在橫膈面。
［關(guān)鍵詞］格構(gòu)式塔； 橫膈； 模態(tài)分析； 預(yù)應(yīng)力柔性桿
中圖分類號：TU347文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)14-0070-04
Effect of horizontal diaphragm on wind-resistant capacity of lattice angle-steel communication towers
Shen Zhirong， Mei Yu
（Department of Structural Engineering， Tongji University， Shanghai 200092， China）
Abstract:Horizontal diaphragm is an indispensable component to ensure the overall spatial stability of polygonal lattice tower. No agreement on the interval or form of diaphragms has been reached in technical documents currently. Integral models of angle-steel communication towers with diaphragms in different intervals and forms were built by SAP2000. The comparison between different types of towers on models, stress ratios of main structural members and economy shows that it is reasonable and feasible to increase the interval between diaphragms and to replace the rigid diaphragms with cross prestressed flexible rods.
Keywords:lattice tower； diaphragm； modal analysis； prestressed flexible rod
作者簡介：沈之容，博士，副教授，Email:shenzhirong@#edu.cn。
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