post tensioned steel 中文意思是什麼
post tensioned steel
解釋
后張拉鋼筋-
Accurate calculation and application of extension value for post - tensioned prestressing steel strand
后張法預應力鋼絞線伸長值精確計算及工程應用 -
In this paper, combined with an engineering example, the calculation procedure and theoretical foundation for the theoretic elongation of post - tensioned steel strand of parabola - shape has been given
結合一工程實例，闡述了預應力鋼絞線理論伸長值的計算過程及理論依據。 -
Especially the bridge engineering has to be concerned with high, new and difficult technologies. new technologies firstly adopted are post - tensioned prestressed concrete simply - supported box girder, assembly two - way prestressed concrete simply - supported t - girder, reinforced concrete continuous rigid frame, and steel - concrete composite continuous girder. all these have formed a series of new bridge structures taking prestressed concrete simply - supported box girder as main feature
由於秦沈客運專線的特殊技術要求，在鐵路建設史上首次採用了后張法預應力混凝土箱形簡支梁、裝配式雙向預應力混凝土t形簡支梁、鋼筋混凝土剛構連續梁、鋼與混凝土結合連續梁等橋跨結構，形成了以預應力簡支箱梁橋跨結構為主要特徵的一系列橋梁新結構。
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