Steel arch bridge had been used abroad in most country because of larger span

higher capacity

faster construct.The steel arch bridge will endure the over loading

nature disaster and traffic accident time after time.It will be damaged all or part at evert turn.So bridge capacity is lowered

hence effects the safety of it.This paper establishs the steel arch bridge health diagnosis and safety evaluation method and inspects the health condition to Zixia steel arch bridge by the method of anti-corrosion coat thickness mensurate

combined intensity mesurate

Non-destructive test

dynamic and static state load test etc.In the mean time

it had evaluated the Zixai steel arch bridge safety using the method of uncertain analytical hierarchy process and brought forward the disposal idea and measure.Meanwhile it accumulates useful materials to inspect and estimate steel arch bridge.