K4+890桥桥面系施工方案.doc

一、工程概况
   该桥为正桥，桥长180米，全桥共分两连，第一联为4*20米，第二联为5*20米，设置3道伸缩缝。该桥为双幅桥，双幅桥间距为7米，半幅桥面宽16米，车行道8米，内侧为0.5米防撞护栏，外侧为7.5米非机动车、行人一体车道；桥面横坡1.5%，人行道横坡2.0%。
   桥面结构层为：1、 预应力空心板，2、C50水泥混凝土桥面铺装10厘米，3、防水涂料防水层，4、中粒式沥青砼4厘米（AC-201），5、细粒式沥青砼3厘米（AC-131）。
  人行道结构层为：1、 预应力空心板，2、中砂夯实，3、M10
水泥砂浆3厘米，4、彩色花砖6厘米。
  桥面按桥面连续处理，全桥在桥两端头以及4#桥墩设置伸缩缝，伸缩缝采用（西安自力化学工业公司）生产的XA-60伸缩缝或同类产品。
  栏杆基座采用C25混凝土浇筑，栏杆采用石制栏杆。现浇栏杆基座在板缝处断开，缝宽2厘米。
  桥面排水采用泄水管排入河中，泄水管直径10厘米，间距5米，采用树脂玻璃钢夹砂管材。
  路缘石采用花岗岩路缘石，加工工艺为带锯解，加工长度1米，泄水孔处路缘石加工时应预留孔洞。
二、施工组织与部署
（一）施工组织
   1、劳务人员组织
①钢筋施工组：20人；
②模板施工组：10人；
③混凝土施工组：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;