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云南中陸達鋼模有限公司

箱梁

箱梁

產品詳情

箱梁是橋梁工程中梁的一種,內部空心狀,上部兩側有翼緣,其中,預制箱梁鋼筋綁扎是預制箱梁質量把控的關鍵工序,其主要把控內容為鋼筋尺寸、大小間距、保護層厚度、鋼筋綁扎和焊接質量。

鋼筋安裝完畢并報驗合格之后,進行模板安裝。模板安裝注意檢查模板尺寸、高程、模板拼縫是否嚴密,兩端模板有縫隙的地方用泡沫劑對其進行封堵,保證混凝土澆筑時不漏漿。

頂板鋼筋安裝之后,先自檢合格再報質檢工程師驗收,質檢工程師驗收合格后再報監理驗收,驗收內容主要為鋼筋尺寸及間距、鋼筋綁扎及焊接質量、鋼筋保護層厚度、波紋管坐標定位等。如果有需要整改的部位,堅決要在整改完成后再復檢合格,監理方同意進入下一道工序才能進入混凝土澆筑階段。

混凝土澆筑應注意將混凝土振搗密實,特別是梁兩端的鋼筋加密區,振動到混凝土停止下沉、不出氣泡、表面呈現浮漿為止。因為梁的兩端混凝土振搗質量直接影響到預應力張拉作業,如果因振搗不密實導致梁體兩端強度達不到張拉要求,那么張拉時可能會引起混凝土開裂現象,因此,混凝土振搗密實是提升梁體強度的關鍵性工作。

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