Research On Techniques Of Elastic Wave Diagnosis On Health Of Concrete Bridge

Reinforced concrete bridges play a essensal role in the infrastructure facilities of the country. The bridge's quality detection an important job in preventing fund waste and avoiding engineering accidents, and people pay more attention on the skills of the aspect.The article penetrates the discussion by putting up a series experiments, two major parts included. The first part includes uniaxial compression test and ultrasonic wave velocity test on specially-made concrete blocks. The second part involes the detection of transmission and surface wave of the concrete samples of concrete bridge.Based on the final data processing of both parts, the former arrives at the conclution of relationship between the concrete strength and ultrasonic sound wave speed of the concrete blocks under loads of different levels, which can be appled to the latter. The latter part indicades the elastic wave velosity distribution of concrete structure bridge, states and weakness of strengths of concrete sample.Though lots of experiments, mass data are obtained, which could not be supposed as a prediction to the security useage time of concrete bridges present, but is a indispensable material in forcasting the span of bridges and improving construction safety.