Calculation theory and load tests of the jointed skew slab bridge

Deflection and Rotation angel formula were established for the single span regular skew slab bridge.A jointed skew slab method was presented as a live distributing factor and key formula were derived.Based on this theory,a calculation code was compiled.Using theoretical formula,the change of moment influence lines with skew angels,flexure-torsion stiffness ratio and calculation positions was shown.Using Baqu River Bridge as the engineering background,live distributing factors were calculated and a testing scheme was decided.Testing results are compared with theoretical results,which agrees with each other well.The method is corrective.