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Table 2 Loading history survey of LuGou Bridge

From: Three-dimensional fatigue crack propagation analysis of welded steel beam based on global-local numerical model

Stage

Typical Passenger Train

Typical Freight Train

Stage 1: 1988~1997

 Transportation volume

20 pairs / day

30 pairs / day

 Locomotive

Beijing Model (Diesel)

Jianshe Model (Steam)

 Carriage marshalling

14 uniform carriages

50 open wagons (C50) and 10 box wagons (P65)

 Train speed

50~60 km/h

20~30 km/h

 Abbreviation label

BJKC

JSHC

Stage 2: 1997~2007

 Transportation volume

5 pairs / day

50 pairs / day

 Locomotive

Dongfeng Four model

Dongfeng Four model

 Carriage marshalling

14 uniform carriages

50 open wagons (C60) and 10 box wagons (P65)

 Train speed

60~70 km/h

50~60 km/h

 Abbreviation label

DFKC

DFHC

Stage 3: 2007~2012

 Transportation volume

3 pairs / day

50 pairs / day

 Locomotive

Shaoshan Four model

Shaoshan Four model

 Carriage marshalling

14 uniform carriages

50 open wagons (C62) and 10 box wagons (P65)

 Train speed

60~70 km/h

50~60 km/h

 Abbreviation label

SSKC

SSHC

Stage 4: 2012 till now

 Transportation volume

11 pairs / day

20 pairs / day

 Locomotive

Harmony model

Harmony model

 Carriage marshalling

16 uniform carriages

50 open wagons (C64) and 10 box wagons (P65)

 Train speed

Less than 100 km/h

Less than 60 km/h

 Abbreviation label

HXKC

HXHC