Abstract：In order to obtain the method of transverse load distribution(TLD) of highway damage,the load transverse distribution of hinged-jointed plate calculation theory is analyzed;the main factors influencing the transverse load distribution are obtained;a method of calculating damage bridge transverse load distribution is proposed.And the analysis of the effect of bridge damage on the load transverse distribution is carried out,and the two aspects of bridge deck pavement and hinge joints are mainly analyzed.In addition to these,the bridge different damage location and damage degree of the influence of load transverse distribution are also analyzed.It provides a reference for the damage diagnosis,the maintenance,and the reinforcement of a bridge.

Keyword：damage of highway bridge;transverse load distribution;hinged-jointed plate method;damage diagnosis;