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2011年12期
| 標(biāo)題 |
| 客運(yùn)專線預(yù)制簡支箱梁彈性上拱度統(tǒng)計(jì)分析(51卷) |
| 英文標(biāo)題 |
| Statistical analysis of elastic camber for prefabricated simply-supported box girder on passenger-dedicated railway |
| 摘要 |
| 建立箱梁有限元模型，對梁體終張拉彈性上拱度進(jìn)行了模擬計(jì)算。收集了3 306片客運(yùn)專線32 m簡支箱梁終張拉階段上拱度實(shí)測值，對實(shí)測數(shù)據(jù)進(jìn)行統(tǒng)計(jì)分析，繪制頻率直方圖。根據(jù)直方圖特點(diǎn)確定樣本總體基本符合正態(tài)分布，擬合了相應(yīng)的概率密度函數(shù)，得出實(shí)測上拱度的樣本均值和方差。分析了典型梁場的實(shí)測上拱度統(tǒng)計(jì)特點(diǎn)。實(shí)測數(shù)據(jù)統(tǒng)計(jì)分析表明,箱梁的彈性上拱度均值與設(shè)計(jì)值基本相符，梁體上拱度總體控制良好。 |
| 作者 |
| 新聞作者:鄭永星，盧文良，賈桐，鄭輝輝 |
| 關(guān)鍵字 |
