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2011年12期
| 標(biāo)題 |
| 客運專線預(yù)制箱梁終張拉彈性上拱度研究(51卷) |
| 英文標(biāo)題 |
| Study on elastic camber during final stretching for prefabricated box-girder on passenger-dedicated railway |
| 摘要 |
| 客運專線預(yù)制箱梁終張拉彈性上拱度是生產(chǎn)過程中重要的監(jiān)測參數(shù)，也是預(yù)拱度設(shè)置的依據(jù)。為考察終張拉彈性上拱度的實際情況，對5孔箱梁終張拉階段進(jìn)行全過程監(jiān)測，采集每個張拉步驟的位移數(shù)據(jù)。同時，建立有限元模型，按張拉順序?qū)K張拉階段進(jìn)行模擬，給出了箱梁在不同的二期恒載下終張拉彈性上拱度有限元分析值，與監(jiān)測數(shù)據(jù)比較吻合。 |
| 作者 |
| 新聞作者:李松 |
| 關(guān)鍵字 |
關(guān)鍵詞:箱梁 終張拉 彈性上拱 監(jiān)測 有限元分析 預(yù)拱度 |
