There is an extensive literatUre 00 tlI!I .. til::~ of~O!lWJycuryed “-m Or airders, but little has been done. ,CiA tM~”‘:i!f·~ “‘Ii….:vlbratioJa of curved sWer bridgcs under the action of ~o ~. or mO’\’iaBIOad.&Qd vibration Recentlytheproblom ef’~ eng oft~ ~e of. ~ d~ .. onl!lJ!” iul8fym of wJMq such Cl!II:Pfq~ IIIOQlbors has •• r~, .’ ~l8a attentionl ••••• ). .CIosed. for~ soIutioRs _ o ….. ‘.·.f.c;/mllliteurwd ….. ~ · l1niform~~i.cm(‘)”C1oJOd form 8.Qlllti!lD..p~ved fOf fllll.da~DtaI.~~ of curve¢iirders,Ui:~lIIt f~ of ~ C)’