No.
|
Item
|
Nanjiang Binlu
|
The Phase-II Project of the Third Ring Road
|
Kuiqi Bridge
|
1
|
Total line length(m)
|
52300
|
12474
|
1110(wherein main bridge 360 long)
|
2
|
Road category
|
City Grade I sub-trunk Rd.
|
City expressway
|
City expressway
|
3
|
Designed traffic capacity
|
780-875pcu/h
|
1500times/day
|
|
4
|
Designed traveling speed Km/h
|
40-50
|
80
|
80
|
5
|
Lane width(m)
|
3.75、3.5
|
3.75、3.5
|
|
6
|
Number of lanes
|
Bidirectional 4 lanes
|
Bidirectional 6 lanes
|
Short-term Design based on 6 lanes. 8 lanes reserved for long-term plan.
|
7
|
Interchange net height(m)
|
5.0
|
|
5.0 for motorized vehicle lane, 2.5 for nonmotorized vehicle lane and pedestrian way
|
8
|
Bridge deck width(m)
|
|
69.5
|
36.0
|
9
|
Median dividing strip width(m)
|
|
Min. width 2.00
|
|
10
|
Marginal strip width(m)
|
|
0.5
|
|
11
|
Standard axle load in pavement design KN
|
100
|
100
|
|
12
|
Max. longitudinal slope %
|
2.5(for nonmotorized vehicle)
|
recommendation 4;limit 6
|
|
13
|
Max. superelevation slope %
|
|
6
|
|
14
|
Min. radius of circular curve without super elevation (m)
|
300、400
|
1000
|
|
15
|
Min. radius of circular curve without transition curve (m)
|
500、700
|
2000
|
|
16
|
Min. radius of circular curve with super elevation (m)
|
|
250
|
|
17
|
Min. length of transition curve(m)
|
|
70
|
|
18
|
Min. length of horizontal curve(m)
|
|
140
|
|
19
|
Min. length of circular curve(m)
|
|
70
|
|
20
|
Min. radius of convex vertical curve(m)
|
General 600,limit 1350
|
General 4500,limit 3000
|
|
21
|
Min. radius of concave vertical curve(m)
|
General 700,limit 1050
|
|
|
22
|
Min. length of vertical curve(m)
|
|
70
|
|
23
|
Min. length of longitudinal slope(m)
|
110
|
290
|
|
24
|
Min. linear length between adjacent curves in same direction(m)
|
|
480
|
|
25
|
Min. linear length between adjacent reverse curves(m)
|
|
160
|
|
26
|
Min. net distance between interchanges (m)
|
|
1000
|
|
27
|
Min. length of horizontal curve with small turning (ɑ≤7°)(m)
|
|
1000/ɑ
|
|
28
|
Designed carload for
bridge and culvert
|
City Grade B
|
City Grade A
|
City Grade A
|
29
|
Anti-seismic standard
|
seismic peak acceleration 0.1g
|
Basic intensity 7, seismic peak acceleration 0.1g
|
Based on《Evaluation Report on Seismic Safety in Project Site》
|
30
|
Designed flood frequency
|
Every one hundred years
|
Every one hundred years
|
Every three hundred years
|
31
|
Navigation standard
|
|
|
Navigation channel grade II (for seacrafts less than 1000 tons);
Designed return period of flood of the highest navigable stage: 20 years;
Net width of single hole bidirectional navigation: 15 to 17m.
|
32
|
Calculated traveling speed in ramp (km/h)
|
|
Intersected with speedway: 50-40;
Intersected with arterial road for communication: 45-35;
Intersected with arterial road:40-30
|
|
33
|
Width of ramp for unidirectional travel(m)
|
|
≥7
|
|
34
|
Width of ramp bridge(m)
|
|
|
8.5
|
35
|
Transition length of parallel speed change lane (m)
|
|
60
|
|
36
|
Transition section of direct speed change lane
|
|
Control based on external rim slope, pull out: 1/15 to 1/120,pull in: 1/30
|
|
37
|
Min. distance of ramp intersection(m)
|
|
Along traveling direction, going out and coming in: 55;
Others:110
|
|
38
|
Min. length of ramp circular curve(m)
|
|
Min. length 85 to 65
for ramp speed of 50 to 40; 65 for speed of 40 to 30.
|
|
39
|
length of deceleration lane(m)
|
|
Ramp length 70 to 85 for ramp speed of 50 to 40; 85 to 95 for speed of 40 to 30.
|
|
40
|
length of acceleration lane(m)
|
|
Ramp length 180 to 210 for ramp speed of 50 to 40; 210 to 230 for speed of 40 to 30.
|
|