*Case 4.E [#jb9ae5ae] **The causes of fatigue [#c0298af9] > The structure behaved in a manner not expected such as due to vibration. **Approaches to repairing and retrofitting [#j88d5a4e] > Bolted splice. > **LINK [#i4b38a4e] -[[2682 Br. in I-79]] < Stop hole+ Angle connection -[[Woodrow Wilson Memorial Br.]] < Bolt splice -[[Steel bridge on Hanshin Expressway (at bracket end)]] < Bolt connection -[[Steel bridge on Hanshin Expressway (at web gusset)]] < Boltsplice -[[Steel bridge on Hanshin Expressway (at sole plate)]] < Stop hole and Scallop and Weld connection and Re-welding (I-section)&br; Bolt connection (Box-section) -[[Steel bridge on Hanshin Expressway (at floorbeam coped end)]] -[[Steel bridge on Hanshin Expressway (at floor-beam coped end)]] < Bolt splice and Re-welding