刚构桥悬臂施工时预应力筋张拉顺序分析
Railway Engineering(2007)
Abstract
通过ANSYS对几种不同张拉顺序进行分析,证明滞后张拉横向预应力,可能导致施工过程中顶板下缘中点处出现纵向裂缝,建议应在各箱梁梁段施工完毕后立即张拉本梁段的横向预应力筋。同时证明张拉横向预应力筋后拆除托架是安全的。
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