Detail Design of Reinforcement Structural Node of Prestressed Concrete Hollow Slab Abutment Back Wall

2、 Design standard: the design load is motor-20 and trailer - 100. The crowd load is 3.5KN/m2, the bridge deck width is 24.5m, and the span is 13.0m. The seismic intensity is VI. The longitudinal slope of the bridge deck is 2.0%, the cross slope is two-way 1.5%, and the elevation of the bridge midpoint is 983.500m. 　　 　　

The drawing is 2 × 10m prestressed concrete simple supported hollow slab bridge light abutment reinforcement drawing, 4 in total.

2. Design load: urban class A, crowd load 3.5kN/m 7. The upper part of this bridge is 27.6m prestressed or reinforced concrete hollow slab, the bridge deck is continuous, the lower pier is column pier, and the bored pile foundation is used; The abutment adopts gravity L-abutment expansion foundation. 8. The structural layer between the new bridge and the old bridge is disconnected, and a 2cm wide longitudinal joint is reserved, and the bridge deck is continuous. 9. One SSFB-D80 expansion joint is set at 0 # abutment, 3 # pier and 6 # abutment respectively. 10. Design flood frequency: 1/100. 11. Geological conditions: the riverbed section is covered with 1.5-4.2m thick pebble layer, 8-11.3 thick strongly weathered granite layer, and the following is slightly weathered granite layer; The allowable bearing capacity of the foundation is 400kpa. 　　 　　

Technical index 1. Design load: automobile - Class 20, trailer - 100 2. Design key points for subgrade width of 12m 1. The internal force calculation and reinforcement design of highway prestressed concrete skew simply supported beam (slab) bridge are carried out in this drawing. 2. This drawing adopts the continuous structure of simply supported slab back wall bridge deck. 3. The stress of main beam under operation is calculated according to the joint force of precast slab, hinge joint and integral cast-in-place concrete

Technical index 1. Design load: automobile - Class 20, trailer - 100 2. Design key points for subgrade width of 12m 1. The internal force calculation and reinforcement design of highway prestressed concrete skew simply supported beam (slab) bridge are carried out in this drawing. 2. This drawing adopts the continuous structure of simply supported slab back wall bridge deck. 3. The stress of main beam under operation is calculated according to the joint force of precast slab, hinge joint and integral cast-in-place concrete

2. The upper part of this bridge adopts 5 × 15m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class I highway, and the seismic peak acceleration is 0.2g. 4. 1.5% of the cross slope of the bridge deck is formed by the cap beam. The bridge deck is paved with 100mm C40W6 concrete and 100mm asphalt concrete. 5. A GQF-C60 expansion joint is set at the abutment of this bridge. There are 28 GYZF200 × 44mm plate rubber bearings at the abutment and 112 GYZ200 × 49mm plate rubber bearings at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 4 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C40 expansion joint is set at the abutment of this bridge, 24 GYZF 200 × 44mm plate rubber bearings are used at the abutment, and 72 GYZ200 × 44mm plate rubber bearings are used at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 13m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 14m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used at the abutment, totaling 24. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge and upstream and downstream respectively, and 400mmM7.5 mortar rubble+300mm gravel cushion is used for the protection. 　　

2. The upper part of this bridge adopts 1 × 10m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used at the abutment, 24 in total. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge, upstream and downstream respectively, using 400mmM7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of the bridge adopts 3 × 10m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used as the bearings, totaling 72. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. Design load: steam - level 20, hanging - 120; The crowd is 3.5KN/m2. 3. Bridge deck motorway: two-way four lane; Design clearance of motorway under the bridge: 4m. 4. The main structure of the bridge adopts prestressed concrete continuous monolithic slab, partially prestressed concrete Class A members, and longitudinal and transverse two-way prestressed system. 5. Cylindrical piers are used as piers, gravity abutment is used as abutment, and rigid expanded foundation is used as abutment foundation. 6. The bridge foundation shall be constructed by open excavation, and the superstructure shall be constructed by integral cast-in-situ support and one-time frame dropping. 　　

2. Design load: Highway Class III. 3. The approach slab at the bridge head is 5m long. 4. The upper part of the bridge adopts 20m prestressed reinforced concrete hollow slab simply supported beam, and the lower part adopts pile foundation connected capping beam. 5. A D40 concealed expansion joint is set at 0 # and 1 # abutments respectively. 6. Design flood frequency: 1/50.

Technical index 1. Design load: automobile - Class 20, trailer - 100 2. Design key points for subgrade width of 12m 1. The internal force calculation and reinforcement design of highway prestressed concrete skew simply supported beam (slab) bridge are carried out in this drawing. 2. This drawing adopts the continuous structure of simply supported slab back wall bridge deck. 3. The stress of main beam under operation is calculated according to the joint force of precast slab, hinge joint and integral cast-in-place concrete

2. Design load: urban class A, crowd load 3.5kN/m 7. The upper part of this bridge is 27.6m prestressed or reinforced concrete hollow slab, the bridge deck is continuous, the lower pier is column pier, and the bored pile foundation is used; The abutment adopts gravity L-abutment expansion foundation. 8. The structural layer between the new bridge and the old bridge is disconnected, and a 2cm wide longitudinal joint is reserved, and the bridge deck is continuous. 9. One SSFB-D80 expansion joint is set at 0 # abutment, 3 # pier and 6 # abutment respectively. 10. Design flood frequency: 1/100. 11. Geological conditions: the riverbed section is covered with 1.5-4.2m thick pebble layer, 8-11.3 thick strongly weathered granite layer, and the following is slightly weathered granite layer; The allowable bearing capacity of the foundation is 400kpa. 　　 　　

2. The upper part of this bridge adopts 5 × 15m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class I highway, and the seismic peak acceleration is 0.2g. 4. 1.5% of the cross slope of the bridge deck is formed by the cap beam. The bridge deck is paved with 100mm C40W6 concrete and 100mm asphalt concrete. 5. A GQF-C60 expansion joint is set at the abutment of this bridge. There are 28 GYZF200 × 44mm plate rubber bearings at the abutment and 112 GYZ200 × 49mm plate rubber bearings at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　 　　

2. The upper part of this bridge adopts 1 × 10m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used at the abutment, 24 in total. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge, upstream and downstream respectively, using 400mmM7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of the bridge adopts 3 × 10m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used as the bearings, totaling 72. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 4 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C40 expansion joint is set at the abutment of this bridge, 24 GYZF 200 × 44mm plate rubber bearings are used at the abutment, and 72 GYZ200 × 44mm plate rubber bearings are used at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 16m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used at the abutment, totaling 24. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge, upstream and downstream respectively. The slope protection is made of 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 13m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 14m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used at the abutment, totaling 24. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge and upstream and downstream respectively, and 400mmM7.5 mortar rubble+300mm gravel cushion is used for the protection. 　　

2. Design load: steam - level 20, hanging - 120; The crowd is 3.5KN/m2. 3. Bridge deck motorway: two-way four lane; Design clearance of motorway under the bridge: 4m. 4. The main structure of the bridge adopts prestressed concrete continuous monolithic slab, partially prestressed concrete Class A members, and longitudinal and transverse two-way prestressed system. 5. Cylindrical piers are used as piers, gravity abutment is used as abutment, and rigid expanded foundation is used as abutment foundation. 6. The bridge foundation shall be constructed by open excavation, and the superstructure shall be constructed by integral cast-in-situ support and one-time frame dropping. 　　

（1） Design Criteria 1 Load level: load - Ⅱ 2 Bridge width: 7.5m=net - 6.9+2 × 0.3m 3 Channel class: none 4 Bridge cross slope: cross slope two-way 1.5% 5. Design flood frequency: 1% 6. Basic seismic intensity: 6 degrees, corresponding seismic peak acceleration 0.05g, and characteristic period of seismic response spectrum 0.35s. 　　

2. The upper part of this bridge adopts 3 × 10m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used as the bearings, totaling 72. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of the bridge adopts 3 × 10m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used as the bearings, totaling 72. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 5 × 15m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class I highway, and the seismic peak acceleration is 0.2g. 4. 1.5% of the cross slope of the bridge deck is formed by the cap beam. The bridge deck is paved with 100mm C40W6 concrete and 100mm asphalt concrete. 5. A GQF-C60 expansion joint is set at the abutment of this bridge. There are 28 GYZF200 × 44mm plate rubber bearings at the abutment and 112 GYZ200 × 49mm plate rubber bearings at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 5 × 15m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class I highway, and the seismic peak acceleration is 0.2g. 4. 1.5% of the cross slope of the bridge deck is formed by the cap beam. The bridge deck is paved with 100mm C40W6 concrete and 100mm asphalt concrete. 5. A GQF-C60 expansion joint is set at the abutment of this bridge. There are 28 GYZF200 × 44mm plate rubber bearings at the abutment and 112 GYZ200 × 49mm plate rubber bearings at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 10m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used at the abutment, 24 in total. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge, upstream and downstream respectively, using 400mmM7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 10m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ175 × 42mm plate rubber bearings are used at the abutment, 24 in total. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge, upstream and downstream respectively, using 400mmM7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 4 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C40 expansion joint is set at the abutment of this bridge, 24 GYZF 200 × 44mm plate rubber bearings are used at the abutment, and 72 GYZ200 × 44mm plate rubber bearings are used at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　 　　

2. The upper part of this bridge adopts 4 × 12m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~160mm, and the bridge deck pavement is made of C40W6 concrete. 5. One GQF-C40 expansion joint is set at the abutment of this bridge, 24 GYZF 200 × 44mm plate rubber bearings are used at the abutment, and 72 GYZ200 × 44mm plate rubber bearings are used at the pier. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 13m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 2 × 13m prestressed concrete hollow slab, the lower pier adopts double column pier, pile foundation, and the abutment adopts double column abutment. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C40 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used as the bearings of this bridge, 48 in total. 6. The bridge is provided with slope protection within 15m upstream and downstream, with a total length of 30m. The slope protection adopts 400mm M7.5 mortar rubble+300mm gravel cushion. 　　

2. The upper part of this bridge adopts 1 × 14m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used at the abutment, totaling 24. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge and upstream and downstream respectively, and 400mmM7.5 mortar rubble+300mm gravel cushion is used for the protection. 　　

2. The upper part of this bridge adopts 1 × 14m prestressed concrete hollow slab, and the lower abutment adopts double column abutment and pile foundation. 3. The design load is Class II highway, and the seismic peak acceleration is 0.2g. 4. The bridge deck transverse slope of 1.5% is formed by the bridge deck pavement thickness of 100~153mm, and the bridge deck pavement is made of C40W6 concrete. 5. A GQF-C20 expansion joint is set at the abutment of this bridge, and GYZ200 × 49mm plate rubber bearings are used at the abutment, totaling 24. 6. The channel slope and bottom of the bridge are protected and built within 15m of the bridge and upstream and downstream respectively, and 400mmM7.5 mortar rubble+300mm gravel cushion is used for the protection.