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預應力鋼絲的強度優點

文章出處:鑫大地客服部責任編輯:xieyuan人氣:-發表時間:2015-05-17 17:16【

預應力鋼絲的強度幾乎是熱軋IV級鋼筋的兩倍。設計強度取值以條件屈服點σ0.2的統計值來確定。 
  預應力鋼絲具有較好的柔韌性,沒有明顯的屈服點,使用時可根據要求的長度切斷,是用于大荷載、大跨度及曲線配筋的預應力混凝土結構的理想鋼材。

預應力鋼絲廣泛應用于預應力混凝土橋梁、鐵路軌枕、壓力水管、混凝土電桿以及房屋工程的大跨度屋架、吊車梁及特種結構(如體育館的懸索結構)中的屋面結構等方面。
    預應力鋼絲束,它有鋼絲束、塑料護套、擠壓套和擠壓簧。在塑料護套外的鋼絲束內的中心絲上涂上粘結涂料,套上擠壓簧和擠壓套后進行擠壓錨固。此實用新型結構簡單,有效防止擠壓錨固過程中中心絲的滑絲滑脫現象,提高建筑物質量。


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