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2010年11 期
| 標題 |
| CRTSⅠ型軌道板張拉與水養(yǎng)順序問題的探討(50 卷) |
| 英文標題 |
| Discussion on sequence of tensioning and curing-in-water for CRTS I-type track slab |
| 摘要 |
| 分析了CRTS Ⅰ型軌道板生產(chǎn)中張拉與水養(yǎng)順序?qū)炷临|(zhì)量的影響，指出采用先張拉、后水養(yǎng)生產(chǎn)順序需要脫模強度達到48 MPa，張拉、封錨時間較長容易導致混凝土收縮開裂；通過試驗證明，先張拉、后水養(yǎng)容易使預應(yīng)力鋼棒與護套產(chǎn)生相對滑動，水更容易滲入，引起鋼棒銹蝕。采用先 |
| 作者 |
| 新聞作者:趙國堂，李昌寧，鐘海江 |
| 關(guān)鍵字 |
