Shinkansen Br. (fatigue cracks at main girder - floorbeam connection)

1.Field of application

Steel bridge on Shinkansen-railway, Japan

2.Circumstances of repair

Fatigue cracks at maingirder - floorbeam connection were found in 1974(after 10 years service).

3.Types of structure

One through type girders(Fig.1)

Shinkansen_MF_fig1.gif
Fig.1

4.Details of loading

Fluctuating loads due to Shinkansen trains traffic.

5.Description of damage and repair method applied

Shinka5.gif
Shinka1.gif
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Shinkansen_MF_fig5.gif
Shinka3.gif

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