And the relation between maturity and the strength of steel fiber reinforced concrete is explored firstly, establishing the homologous empirical formula. 并就成熟度與鋼纖維混凝土強度之間的關(guān)系進(jìn)行了初步的探索，建立了相應的經(jīng)驗公式。
The method of Incremental launching is widely used in the construction of prestressed concrete continuous bridges, and has made considerable progresses in recent years. 頂推施工方法在預應力混凝土連續梁橋的施工中早有應用，這類(lèi)橋梁的設計方法和頂推施工工藝目前都已經(jīng)相對比較成熟。
