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23 Based on the results of the work on this project, the follow- ing conclusions may be drawn: ⢠For the design cases considered in the calibration, using the same load and resistance factors used in the development of AASHTO LRFD specifications resulted in an adequate reliability factor (3.7 to 4.51). ⢠In spite of the differences between the flexural design pro- visions in the 1993 Guide Specifications, the 2003 Guide Specifications, and the 12-52 recommended specifications, the three specifications produced very similar flexural resistance. ⢠The shear resistance values calculated by the three specifi- cations are similar except that the 1993 Guide Specifications and the 12-52 recommended specifications produce higher shear resistance of stiffened girders due to consideration of the post-buckling behavior by these two specifications. C H A P T E R 3 Conclusions
