This limit applies to standard gauge railways of 1435 mm. GB 146.2-1983 Standard gauge railway construction limits GB146.2-1983 Standard download and decompression password: www.bzxz.net

1 Scope of application
National Standard of the People's Republic of China
Standard gauge railway construction limits
Structure gauge for standard gauge railways This limit applies to 1435 mm standard gauge railways. 2 Definition
UDC 625.11
GB146.2—83
instead of GB14659
The building limit is a limit cross-sectional profile perpendicular to the line centerline. Within this outline, except for rolling stock and equipment that interacts with rolling stock (vehicle speed reducers, road sign receivers, contact wires, etc.), no other equipment or buildings may intrude. 3 How to use
3.1 Regardless of whether new rails or old rails are used (including long-term replacement of heavy rails and thickened track beds), the building boundary dimensions calculated from the rail surface should comply with regulations.
3.2 The dimensions on the building limit map are formulated for lines on horizontal straights. 3.3 The distance between the centers of adjacent lines in the curved part and the expanded distance between the center line of the line and the building should be calculated according to the prescribed formula. 3.4 In the curved part, due to the super height of the outer rail, the vertical height of the building limit should be calculated from the straight line formed by the highest points of the inner and outer rails. Horizontal dimensions shall be measured from the center line of the widened line. 3.5 The distance between the center lines of adjacent lines at stations and sections, as well as other secondary boundary dimensions, are stipulated in various technical design specifications or standards of the Ministry of Railways.
National Bureau of Standards released on 1983-11-07
648
Implemented on 1984-10-01
4 basic dimensions
4.1 basic building limits|| tt||4.1.1 construction limit-1
site
1220
1400
1700
2000
2150||tt| |2440
2370
1875
1750
1725
02
1500
1400
GB146 .2-83
Intersection and main line within the station
1220
1400
1700
2000
2440
2370
000
1875
1725
1500
1400
f
Picture 1
×一× One signal machine, Shuihe’s building boundary (main line is not applicable). The building limits of one platform (not applicable to the main line) are the basic limits of various buildings.
--Suitable for overpasses, overpasses, canopies and other buildings on lines tractioned by electric locomotives. ...minimum height of overpasses under difficult conditions for lines hauled by electric locomotives. 00S | At least 2.0 meters from the edge of the platform. Platforms as high as 1,100 mm can be built on lines designed for passenger trains.
4.1.1.1 Construction limit - 1 is the basic construction limit of national railways. It applies to: 4.1.1.1.1 New railways built after 1959. 4.1.1.1.2 Technical transformation of operating railways.
a. When constructing a double line, at least one line must comply with the construction limit -1b. Railways designated by the Ministry of Railways for technical transformation. 4.1.1.1.3 Cargo trains with a loading limit of 4450×5300 mm. Please refer to Appendix B for cargo loading dimensions. When over-sized cargo trains at all levels operate on single lines or double lines, they should be handled in accordance with the over-sized cargo transportation regulations. 649
Methods for widening construction limits on curves:
4.1.1.2
GB146.2—83
Wending inside the curve, mm W,:||tt ||Widening outside the curve, mm W
40500
R;
44000
R;
H
1500||tt ||W=W.+W,
The total width of the inside and outside of the curve, millimeters
Where: R.—
-curve radius, meters,
H
The height of a calculation point from the rail surface, mm, h-
H
1500
Super height of outer rail, mm.
84500
R
·h value can also be used as the axis of the inner rail top to rotate the relevant limit angle (θ=tgh
H
1500| |tt||h
Get
1500
4.1.2
Build limit-2
1440
940|| tt||1700
2000
1750
1600
1400
1440
940
1700||tt| |2000
OSE
11750
1600
1400
rail surface again
T
Figure 2||tt ||(5)
(6)
(7)
Suitable for new and rebuilt steam and diesel locomotives, garage doors, turntables, car wash racks, special coal for vehicles Water lines, tank washing lines, ice adding lines, and various buildings on locomotive running lines. It is also suitable for canopies on passenger train arrival and departure lines and lines where over-limit trucks are not allowed to enter. 1. The above is suitable for electric locomotives. Various buildings. The value of the construction is determined by the height of the catenary (with or without load-bearing cables) 650
4.2 Tunnel Building Limits
4.2.1 Tunnel Limit-1A and Tunnel Limit- 1B
1400
0009
Tunnel building limits.
2440
1875| |tt||2250
(single line)
099
GB146.2-83
00S
4000
H||tt ||Rail surface again
4000
8500
Picture 3
09SE
(double line)
2440
2250
Lighting, communication, warning signals, color light signals and other equipment can be installed between the basic building limit and the tunnel building limit. Tunnel limit-1A and tunnel limit-1B are suitable for new construction and reconstruction of steam and internal combustion traction. For single-track and double-track railways, the loading height of cargo trains should not exceed 5300 mm
651
com4.2.2 Tunnel limit-2A and Tunnel limit-2B
1700|| tt||1400
2000
2400
0SSS
000P
2440
2250
GB146.2—83
(single line)
O0ST
4000
10
000
rail surface√
4000||tt| |8500
Figure 4
Tunnel building limits (see Appendix A for catenary suspension height), basic building limits.
(double line)
OOST
000g
2440
2250
can be installed between the basic building limit and the tunnel building limit Equipped with equipment such as lighting, communications, warning signals and color light signals. Tunnel limit 1A and 2B apply to newly built and reconstructed single-track and double-track railways with electric traction. When these limits are adopted, the loading height of freight trains should not exceed 5300 mm. 4.2.3 Tunnel widening method:
Widen the inside of the curve, mm W, =
Widen the outside of the curve, mm W2 =
Where: R;
Curve radius, meters,
H-
h-
40500
R,
44000
R,
H
1500
h
The height of a calculation point from the rail surface, mm, outer rail super height, mm.
The outer rail super height of main trunk lines is 160 mm. When the long-term driving speed cannot be determined, when R<1200 meters, h=160 mm will be used. If R>1200 meters, the maximum driving speed of 160 km/h will be used to calculate the super height and width. 652
4.3 Bridge construction limit
4.3.1 Bridge limit-1A and Bridge limit-1B
1400
2000
0009
2440
1875
780
Bridge construction limits.
Basic building limits.
1680
(single line)
0998
GB146.2-83
0S
4000
0008|| tt||rail surface again
4000
8880
Figure 5
099
(double line)
00S||tt| |0000
1680
2440
Equipment such as lighting, communication and signaling can be installed between the basic building limits and the bridge building limits. 760 | | tt |
653
4.3.2 Bridge limit-2A and Bridge limit-2B
1700
1400
2000
2400||tt ||0999
2440
000
1875
760
Bridge Building Limits
Basic Building Limits
1680| |tt||(single line)
GB146.2—83
00ST
±4000
0000
rail surface√
4000
8880
Figure 6
(double line)
o0sT
0008
1680
2440||tt| |Lighting, communication and signal equipment can be installed between the basic building limits and the bridge building limits. 760
Bridge Limit-2A and Bridge Limit-2B are suitable for newly built and reconstructed single-track and double-track railways with electric traction. When these limits are applied, the loading height of goods trains should not exceed 5300 mm. 654
0089
000S
GB146.2—83
Appendix A
Electrified railway pantograph position reference diagram
1250| |tt||0
20
Electrified railway bridge and tunnel building limits.
The limit of upward vibration during truck operation.
Pantograph working area.
1700
1080
SE
1080
1700
00
Figure 7
200| | tt | |tt||?
Catenary installation location
station
district
within
overpass within or near the station , under bridges and within the construction limits of bridges and tunnels
Note: ① The voltage of the contact network is 25 to 35 kV. 9
Cargo train loading height
48003
60002
5500
5500
5200
mm||tt| | 5300 | | tt | The suspension height of the catenary in the station can be the same as the interval. ③ When the operating railway is electrified and this railway limit cannot be adopted, the basic loading height of freight trains. 655
%
5
5
0008
0
GB146.2—83
Appendix B|| tt||Over-limit cargo loading limit reference map
1400
1220
2000
1730
1350
1770||tt| |2225
2440
1600
1875
0
1725
Basic building limits (building limit -1).
The maximum loading and cutting limit for over-sized cargo.
1400
1220
[450
450
2000
1730
1350
1700| |tt||2225
2440
1600
1725
Figure 8
Basic cargo loading limit (basic outline of rolling stock limit) rail surface√| |tt||Note: ① Cargo trains equal to or smaller than the basic cargo loading limit can pass on national standard gauge railways. ② Cargo trains with the largest over-the-limit cargo loading limits can pass on railways that adopt this building limit standard. Additional notes:
This standard was proposed by the Ministry of Railways of the People's Republic of China and is under the jurisdiction of the Institute of Standards and Metrology of the Ministry of Railways. This standard was revised and drafted by the Institute of Standards and Metrology of the Ministry of Railways. The drafter of this standard revision is Yu Jianjun.
656
S
000
00.8m
2—83
00ST
±4000
0000
Rail surface√
4000
8880
Figure 6| |tt||(double line)
o0sT
0008
1680
2440
can be installed between the basic building limit and the bridge building limit Lighting, communication and signaling equipment. 760
Bridge Limit-2A and Bridge Limit-2B are suitable for newly built and reconstructed single-track and double-track railways with electric traction. When these limits are applied, the loading height of goods trains should not exceed 5300 mm. 654
0089
000S
GB146.2—83
Appendix A
Electrified railway pantograph position reference diagram
1250| |tt||0
20
Electrified railway bridge and tunnel building limits.
The limit of upward vibration during truck operation.
Pantograph working area.
1700
1080
SE
1080
1700
00
Figure 7
200| | tt | |tt||?
Catenary installation location
station
district
within
overpass within or near the station , under bridges and within the construction limits of bridges and tunnels
Note: ① The voltage of the contact network is 25 to 35 kV. 9
Cargo train loading height
48003
60002
5500
5500
5200
mm||tt| | 5300 | | tt | The suspension height of the catenary in the station can be the same as the interval. ③ When the operating railway is electrified and this railway limit cannot be adopted, the basic loading height of freight trains. 655
%
5
5
0008
0
GB146.2—83
Appendix B|| tt||Over-limit cargo loading limit reference map
1400
1220
2000
1730
1350
1770||tt| |2225
2440
1600
1875
0
1725
Basic building limits (building limit -1).
The maximum loading and cutting limit for over-sized cargo.
1400
1220
[450
450
2000
1730
1350
1700| |tt||2225
2440
1600
1725
Figure 8
Basic cargo loading limit (basic outline of rolling stock limit) rail surface√| |tt||Note: ① Cargo trains equal to or smaller than the basic cargo loading limit can pass on national standard gauge railways. ② Cargo trains with maximum over-loading limits can pass on railways that adopt this building limit standard. Additional notes:
This standard was proposed by the Ministry of Railways of the People's Republic of China and is under the jurisdiction of the Institute of Standards and Metrology of the Ministry of Railways. This standard was revised and drafted by the Institute of Standards and Metrology of the Ministry of Railways. The drafter of this standard revision is Yu Jianjun.
656
S
000
00.8m
2—83
00ST
±4000
0000
Rail surface√
4000
8880www.bzxz.net
Figure 6| |tt||(double line)
o0sT
0008
1680
2440
can be installed between the basic building limit and the bridge building limit Lighting, communication and signaling equipment. 760
Bridge Limit-2A and Bridge Limit-2B are suitable for newly built and reconstructed single-track and double-track railways with electric traction. When these limits are applied, the loading height of goods trains should not exceed 5300 mm. 654
0089
000S
GB146.2—83
Appendix A
Electrified railway pantograph position reference diagram
1250| |tt||0
20
Electrified railway bridge and tunnel building limits.
The limit of upward vibration during truck operation.
Pantograph working area.
1700
1080
SE
1080
1700
00
Figure 7
200| | tt | | tt | , under bridges and within the construction limits of bridges and tunnels
Note: ① The voltage of the contact network is 25 to 35 kV. 9
Cargo train loading height
48003
60002
5500
5500
5200
mm||tt| | 5300 | | tt | The suspension height of the catenary in the station can be the same as the interval. ③ When the operating railway is electrified and this railway limit cannot be adopted, the basic loading height of freight trains. 655
%
5
5
0008
0
GB146.2—83
Appendix B|| tt||Over-limit cargo loading limit reference map
1400
1220
2000
1730
1350
1770||tt| |2225
2440
1600
1875
0
1725
Basic building limits (building limit -1).
The maximum loading and cutting limit for over-sized cargo.
1400
1220
[450
450
2000
1730
1350
1700| |tt||2225
2440
1600
1725
Figure 8
Basic cargo loading limit (basic outline of rolling stock limit) rail surface√| |tt||Note: ① Cargo trains equal to or smaller than the basic cargo loading limit can pass on national standard gauge railways. ② Cargo trains with the largest over-the-limit cargo loading limits can pass on railways that adopt this building limit standard. Additional notes:
This standard was proposed by the Ministry of Railways of the People's Republic of China and is under the jurisdiction of the Institute of Standards and Metrology of the Ministry of Railways. This standard was revised and drafted by the Institute of Standards and Metrology of the Ministry of Railways. The drafter of this standard revision is Yu Jianjun.
656
S
000
00.8m
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