頂推法橋梁施工中貝雷片導(dǎo)梁的整體穩(wěn)定性分析
雷自學(xué)， 李文科
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（長安大學(xué)建筑工程學(xué)院， 西安 710061）[摘要] 為了研究貝雷片組裝導(dǎo)梁的可行性，本文采用MIDAS/Civil通用軟件對(duì)一實(shí)際工程中的導(dǎo)梁進(jìn)行模擬，研究其在不同受力狀態(tài)下的整體穩(wěn)定性。結(jié)果表明:自重荷載和橫向支撐對(duì)其整體穩(wěn)定性影響較大，而安裝誤差則影響較小；合理的設(shè)計(jì)會(huì)使這種導(dǎo)梁具有足夠高的整體穩(wěn)定安全系數(shù)，可推廣應(yīng)用于實(shí)際工程中。[關(guān)鍵詞] 貝雷片; 整體穩(wěn)定性; 頂推法; 導(dǎo)梁中圖分類號(hào)：TU375.1 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S2-0717-03作者簡(jiǎn)介：雷自學(xué)，學(xué)士，教授， Email:thunderleizixue@126.com。Overall stability analysis of launching nose made of Bailey panels in bridge construction with the incremental launching methodLei Zixue, Li Wenke(School of Civil Engineering, Chang’an University, Xi’an 710061, China)Abstract: In order to study the feasibility of using Bailey panels to assemble launching noses, general software MIDAS/civil was adopted to model the launching nose in a real project to investigate its overall stability under different loading conditions. The results show that the self weight and lateral bracing both have considerable effect on its overall stability, while the assembling tolerances have minor effect on it; rational design can make the launching nose adequately stable, so that such launching noses can be widely used in practice.Keywords: Bailey panel; overall stability; incremental launching method; launching nose
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