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桥梁支座伸缩缝更换的施工工艺简述原有伸缩缝装置的清晰以及开槽

人气: 4587 发表时间:2019-06-06

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桥梁支座伸缩缝更换

桥梁支座伸缩缝更换的施工工艺简述原有伸缩缝装置的清晰以及开槽

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桥梁支座伸缩缝更换的施工工艺简述原有伸缩缝装置的清晰以及开槽  ①先凿除原有的伸缩缝装置,并根据设计图纸确定开槽深度,打上线用切割机切缝,剧缝时应留意缝的整洁、顺直度。同时,剧缝时要留意必需将沥青混凝土路面切透,以防止开槽时,缝外沥青混凝土的松动。切缝时不得切至搭板上。②利用厢风镐进行开槽,开槽深度一定大于25厘米,同时还要将槽内的沥青混凝土等清除干净,以确保新老混凝土的结合。③将桥梁伸缩缝缝隙内的杂物清理至梁板底部,然后用泡沫板填充伸缩缝,确保泡沫板的顶面与台背墙顶面齐平。④将槽内的锚固筋理顺、理直,清除干净原有伸缩缝装置后,对原有的锚固筋进行调整。

桥梁支座伸缩缝更换

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