發(fā)布時(shí)間：2018-01-05 19:15

  本文關(guān)鍵詞：懸索橋主纜與鞍座摩擦特性理論分析方法　出處：《中國公路學(xué)報(bào)》2014年01期 　論文類型：期刊論文

  更多相關(guān)文章： 橋梁工程 多塔懸索橋 理論分析 摩擦特性 主纜 鞍座

【摘要】：為了研究主纜與鞍座間摩擦力的組成機(jī)理,給多塔懸索橋的設(shè)計(jì)與施工提供參考,對(duì)主纜與鞍座摩擦特性的理論分析方法進(jìn)行了研究,基于接觸面間的相互作用力關(guān)系建立了主纜索股與鞍座摩擦特性的理論方程和子鞍座并聯(lián)模型。通過模型試驗(yàn)對(duì)所提出的分析方法進(jìn)行了驗(yàn)證,在此基礎(chǔ)上對(duì)主纜與鞍座間摩擦特性的關(guān)鍵問題進(jìn)行了研究。結(jié)果表明:所提出的分析方法適用于主纜與鞍座摩擦特性問題研究;主纜與鞍座間的總摩擦力主要由索股與承纜槽底面接觸面的摩擦力及索股與承纜槽側(cè)壁接觸面的摩擦力兩部分組成,其中前者占較大比例;主纜與鞍座間摩擦因數(shù)及抗滑移安全系數(shù)的取值問題較為復(fù)雜,結(jié)構(gòu)設(shè)計(jì)時(shí)應(yīng)綜合考慮多種因素以確定其合理取值。
[Abstract]:In order to study the mechanism of composition of main cable and saddle friction, provide a reference for the design and construction of multi tower suspension bridge, the main cable and saddle friction theory analysis method, the theoretical model of equation and sub main cable and saddle saddle friction force relationships established in parallel between the contact surfaces based on. Through the model test to verify the proposed method, on the basis of the study on the key problems of the friction characteristics between main cable and saddle. The results show that the proposed method is applicable to the problem of main cable and saddle friction characteristics of main cable and saddle; the total friction between the main cable and by the cable groove bottom friction and strands of the cable and the side wall of the groove surface friction of two parts, of which the former accounted for a large proportion; anti sliding safety factor and the friction between the cable and the saddle The value coefficient is more complex, many factors should be considered when designing the structure to determine the reasonable value.

【作者單位】： 西南交通大學(xué)土木工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(50908192) 西南交通大學(xué)“z饈抵恰率蘭陀判閎瞬藕蟊溉搜∨嘌钅俊，

本文編號(hào)：1384464