K4+890橋橋面系施工方案.doc
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一、工程概況
該橋為正橋，橋長180米，全橋共分兩連，第一聯為4*20米，第二聯為5*20米，設置3道伸縮縫。該橋為雙幅橋，雙幅橋間距為7米，半幅橋面寬16米，車行道8米，內側為0.5米防撞護欄，外側為7.5米非機動車、行人一體車道；橋面橫坡1.5%，人行道橫坡2.0%。
橋面結構層為：1、 預應力空心板，2、C50水泥混凝土橋面鋪裝10厘米，3、防水涂料防水層，4、中粒式瀝青砼4厘米（AC-201），5、細粒式瀝青砼3厘米（AC-131）。
人行道結構層為：1、 預應力空心板，2、中砂夯實，3、M10
水泥砂漿3厘米，4、彩色花磚6厘米。
橋面按橋面連續處理，全橋在橋兩端頭以及4#橋墩設置伸縮縫，伸縮縫采用（西安自力化學工業公司）生產的XA-60伸縮縫或同類產品。
欄桿基座采用C25混凝土澆筑，欄桿采用石制欄桿。現澆欄桿基座在板縫處斷開，縫寬2厘米。
橋面排水采用泄水管排入河中，泄水管直徑10厘米，間距5米，采用樹脂玻璃鋼夾砂管材。
路緣石采用花崗巖路緣石，加工工藝為帶鋸解，加工長度1米，泄水孔處路緣石加工時應預留孔洞。
二、施工組織與部署
（一）施工組織
1、勞務人員組織
①鋼筋施工組：20人；
②模板施工組：10人；
③混凝土施工組：15人；
First, project survey
The bridge is the bridge to the bridge 180 meters long, divided into two full-bridge link, the first joint of 4 * 20 m, the second of 5 * 20 m, set the three joints. The bridge is double width bridge, double width bridge spacing is 7 meters, 16 meters Banfu voluminous bridge, roadway 8 m, 0.5 m for the guardrail on the inside, outside is 7.5 m of non-motor vehicles, pedestrians, one Drive; deck transverse Singapore 1.5%, 2.0% sidewalk cross slope.
Bridge layer: 1, prestressed hollow, 2, C50 Concrete Bridge Deck 10 cm, 3, waterproof coating waterproofing, 4, in tablets 4 cm asphalt concrete (AC-201), 5, small 3 cm asphalt concrete grain (AC-131).
Pavement layer: 1, prestressed hollow, 2, in the sand compaction, 3, M10
Cement mortar 3 cm, 4, 6 cm color tiles.
Deck by deck continuous treatment, full-bridge and the bridge at both ends of the first set of 4 # pier expansion joints, expansion joints used (self-Xi'an Chemical Industrial Company) production of XA-60 expansion joints, or similar products.
Railing base using C25 concrete pouring, railings with stone railings. Base at the seams cast railings were broken, width of 2 cm.
Deck drainage water into the river by discharge, the vent pipe diameter of 10 cm, 5 m distance using the resin GRP pipe.
Curbs with granite curbs, as the band saw processing solution, process length of 1 meter, outlet hole should be reserved for curbs processing holes.
Second, the construction organization and deployment
(A) of the Construction Organization
1, service staff organizations
① steel construction group: 20;
② Formwork Group: 10;
③ Concrete Construction Group: 15;