VIP free [Guangzhou] Design and construction drawing of bridge of an expressway project
six
1. Overview 1.1 Overview of Bridge and Culvert Works The starting point of this section is K3+000, and the ending point is K4+643.5. The main line is located on a straight line, and part is located on a circular curve with a radius of R=1000m and its transition curve. Main line span combination of the whole bridge: left bridge: 4x25+(25+26+32+32)+(2x30+23+30)+(3x30+25)+(3x25+32)+(32+25+30+30)+4x30+4x30+(3x30+25.878)+4x30+4x30+4x30+3x30+(2x30+32)+3x32; A total of 53 right span bridges are: (2x25+30+32)+(32+32+30)+(32+3x30)+(3x30+25)+(2x25+32+32)+(25+30+25+30)+4x30+4x30+(3x30+25.878)+4x30+4x30+3x30+(2x30+32)+3x32; A total of 52 spans of the main line are 1643.5m long. 48 # pier on the left side used to be a separate double span bridge. This pier will be merged into a single span bridge later. 55 # pier is shared by Bid II and Bid III, and the final design shall be subject to Bid III. Thirteen ramps A, B, C, D, E, F, G, H, I, J, O, P and Q are set in this section, which are implemented in Phase II and are not included in this design. 1.2 Design basis and specifications 1. Design basis 1) Summary Meeting Minutes of Preliminary Design Review of an Expressway in Guangzhou (SXJ [2003] No. 028); 2) Letter on Comments on the Design Drawing of an Expressway Project (SPGH [2003] No. 205); 3) Reply on the Project Scheme of an Expressway in Guangzhou (SJSF [2003] No. 117); 4) Bidding Documents for Construction Drawing Design and General Construction Contracting of an Expressway Project (Bid Section II) in Guangzhou; 5) Bidding Document of an Expressway Project in Guangzhou (general specification); 6) Bidding Document for an Expressway Project in Guangzhou (Detailed Engineering Geological Survey Report); 7) Bidding Document of an Expressway Project in Guangzhou (project location survey report) and relevant CD software;; 8) Q&A summary of the bidding documents of Construction Design and General Contracting of an Expressway Project in Guangzhou; 9) Addendum to the Bidding Document of an Expressway Project in Guangzhou. 2. Design Specifications 1) Code for Design of Urban Roads (CJJ37-90) 2) Technical Standard for Highway Engineering (JTJ001-97) 3) Code for Design of Highway Routes (JTJ011-94) 4) Code for Design of Highway Subgrades (JTJ013-95) 5) Technical Code for Design and Construction of Embankments on Soft Soil Foundation of Highway (JTJ017-96) 6) Technical Code for Construction of Highway Pavement Base (JTJ034-2000 7), Test Code for Aggregates of Highway Engineering (JTJ058-2000 8), General Code for Design of Highway Bridges and Culverts (JTJ021-89), 9), Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts (JTJ023-85), 10), and Code for Planning of Urban Water Supply Engineering (GB50282-98) 3223231 11) Code for Comprehensive Planning of Urban Engineering Pipelines (GB50289-98) 12) Code for Design of Outdoor Drainage Engineering (GBJ14-87, 1997 Edition) 13) Code for Planning of Urban Drainage Engineering (GB50318-2000) 14) Code for Seismic Design of Construction (GB11-89) and other relevant codes and regulations. 1.3 Technical standard 1) Road category: urban expressway and urban trunk road. 2) Load level: urban level A. 3) Design speed: 80km/h for expressway and 60km/h for urban trunk road. 4) Horizontal curve: the minimum radius of circular curve is 1000m, 2% superelevation is set, the minimum radius of circular curve without transition curve is 2000m, and the minimum length of transition curve is 70m. The minimum radius of circular curve used in this project is 1000m, and the minimum length of transition curve is 122.5m. 5) The maximum minimum radius of convex vertical curve of vertical curve is 3000 m, the general minimum radius is 4500 m, the minimum radius of concave vertical curve is 1800 m, the general minimum radius is 2700 m, and the minimum length of vertical curve is 70 m. 6) Longitudinal slope: the maximum longitudinal slope is 3%, and it can be relaxed to 4% where local conditions are limited. 7) The standard section of viaduct bridge is: 0.5m (flower groove)+0.4m (guardrail)+12m (carriageway)+0.4m (guardrail)+0.5m (flower groove)+1.2m (median separator)+0.5m (flower groove)+0.4m (guardrail)+12m (carriageway)+0.4m (guardrail)+0.5m (flower groove)=28.8m, two-way six lane; The cross section layout of additional sidewalk of XX River Bridge is: 3.25m (sidewalk) ＋ 0.5m (flower groove green belt)+0.4m (crash barrier) ＋ 0.5m (curb belt) ＋ 12m (roadway) ＋ 0.5m (curb belt) ＋ 0.5m (flower and grass green belt) ＋ 1.2m (separator belt) ＋ 0.5m (flower groove green belt) ＋ 0.4m (crash barrier) ＋ 0.5m (curb belt) ＋ 12m (roadway ＋ 0.5m (curb belt) ＋ 0.4m (crash barrier) ＋ 0.5 m (flower green belt)+3.25 m (sidewalk)=35.3 m, two-way six lane. 8) Clear height of bridge: the crossed road spans the main line by 5.0m, the main line spans other roads by 5m, and the clear height of pedestrian and bicycle lanes is 2.5m. 9) Seismic intensity: fortification shall be based on VII degree. 10) The lowest elevation of bridge and pavement shall be controlled according to the flood control requirements for the once-in-a-century flood control elevation.
