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預力混凝土
释义
預力混凝土
yù lì hùn níng tǔ
在混凝土构体中埋设高强力钢键由多根钢丝缠绕成的束状物,于混凝土凝固前或凝固后,预先施力于该钢键所成的构材。在加压或载重时,可承受更大的压力或更大的载重量。国内的高速公路、中兴桥、光复桥等皆使用此种构材。
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更新时间:2024/9/21 1:43:36