*Case 3.H [#a1ca9f79]
**The causes of fatigue [#oe3c3441]
>
Stresses and deformations unforeseen in design occurred. 
**Approaches to repairing and retrofitting [#i2ef8d60]
>
Modification of connection detail. 

>
**LINK [#m1b96f69]

-[[Deck-type two hinge arch Br.]] 
>
Improving gusset details

-[[Shinkansen Br. (fatigue cracks at main girder - floorbeam connection)]] 
>
Connection plates by bolted splice.

-[[Jhojuin Br. (connection plates between floor beams and truss chords)]] 
>
Connection plates by welding.

-[[Deck-type curved-chord warren truss bridge]] 
>
Flange connection

-Tomei Ex. Bridges, cross bracing connection plate.
>
Adding cross frames and stringers.

-[[Polk County Br.]]
>
Bolt connection plate to top flange.

-[[Platte-Winner Br.]] 
>
Stop hole and Dog bone

-[[2680 Br.]]
>
Stop hole and Angle connection

-[[Thomas Br.]] 
>
Stop hole and Positive attachment

-[[Lehigh Canal and River Br.]] 
>
Plate removal

-[[Daniel Boone Br.]] 
>
Stop hole and Angle connection

-[[I-470 and I-79 tied arch Br.]] 
>
Stop hole and Angle connection

-[[Section D10]] 
>
Bolt splice

-[[Poplar Street Br.]] 
>
Stop hole and reweld and plate connection

-[[Polk County Bridge, Iowa.]] 
-[[Polk County Br.]] 
>
Gap increase and Bolt connection

-[[Prairie Du Chien Bridge.]] 
-[[Prairie Du Chien Br.]] 
>
Stop hole and Bolt splice

-[[Walt Whitman Bridge, New Jersey.]] 
-[[Walt Whitman Br.]] 
>
Restraint removal

-[[Deck-type Arch bridge on Tomei Expressway]] 
>
Stop hole and Plate connection

-[[Sozuka-Ohhashi (at member connection)]] 
>
Adding the diagonal member (Stop hole, Re-welding and Adding the members)

-[[Sozuka-Ohhashi (at suspension  member)]] 
>
Replacement

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