
公路墩為空(kong)心(xin)薄壁(bi)墩:墩身混(hun)凝土施(shi)工(gong)可(ke)采用滑模(mo)或(huo)翻模(mo)施(shi)工(gong),施(shi)工(gong)注意(yi)新老混(hun)凝土結合面的清(qing)洗和鑿毛,
為使全橋顏色一(yi)(yi)致,宜選用同一(yi)(yi)種水泥.在進行墩身(shen)施工時(shi)應注意安裝主梁(liang)零(ling)號塊托架的(de)預埋構件.主墩身(shen)第一(yi)(yi)
次澆注時應(ying)至(zhi)少(shao)澆筑2米(mi)高度的空心墩柱,即(ji)主墩第一節高度至(zhi)少(shao)應(ying)達到4.5米(mi),以(yi)減少(shao)剛度突(tu)變帶(dai)來的混(hun)凝土
收縮裂縫.墩身垂直(zhi)度允許(xu)偏(pian)差不(bu)得大于(yu)(yu)(yu)(yu)1/1000,且(qie)墩身各斷面中心(xin)位(wei)置(zhi)與設(she)計位(wei)置(zhi)偏(pian)差不(bu)得大于(yu)(yu)(yu)(yu)2厘米.墩身表面需安裝貼面冷軋帶(dai)肋鋼筋焊網,網片之間(jian)(jian)的接(jie)長采用插(cha)接(jie),插(cha)接(jie)長杜不(bu)小于(yu)(yu)(yu)(yu)20厘米.墩身和承臺之間(jian)(jian)的混凝土澆注齡期差不(bu)得大于(yu)(yu)(yu)(yu)20天.墩身均未設(she)置(zhi)爬(pa)梯和通風孔(kong),施工單位(wei)可(ke)根據需要進行設(she)置(zhi),但不(bu)可(ke)截斷原有結構鋼筋.
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現貨60*60口(kou)(kou),80*80口(kou)(kou),100*100口(kou)(kou),120*120口(kou)(kou),140*140口(kou)(kou),160*160口(kou)(kou),50*100口(kou)(kou),85*135口(kou)(kou),異型口(kou)(kou)徑可按(an)客戶要求訂(ding)做(zuo)。
現貨(huo)300*400*150*80,250*330*150*80,250*310*130*80,300*400*150*100,300*260*130*80,300*350*150*80,250*310*60,300*400*150*100,300*500*170*120*120,等(deng)。真(zhen)誠歡迎新老客(ke)戶朋友選擇合適您的產品。
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