On-site evaluation method and simulation evaluation method for road and bridge transition section flatness comfort

Abstract

The invention discloses an on-site evaluation method and a simulation evaluation method for road and bridge transition section flatness comfort. The on-site evaluation method adopts a data acquisition instrument which can acquire various data information such as time, test travel speed, acceleration data of each measurement point, the longitude and latitude of each test section, image data of test lanes and the like in real time in a test process; relatively complete data information facilitates data selection and provides theory data basis for follow-up pavement performance change of a test road. According to the simulation evaluation method, the motion law of an established whole-vehicle model is quite close to that of an actual vehicle, and the motion characteristics under excitation of road unevenness can be simulated better; the operational speed of a software model on a computer is higher than the speed of real-time operation by 3-6 times, the flatness of the test road can be evaluated rapidly, and the evaluation method has less outdoor work, is less affected by the outside, can save human and material resources effectively, omits a test instrument mounting process, is simpler and more convenient and requires shorter time.

Description

technical field [0001] The invention belongs to the field of road use performance detection, and in particular relates to an on-site evaluation method and a simulation evaluation method for the smoothness and comfort of a road-bridge transition section. Background technique [0002] In recent years, more and more attention has been paid to the comfort, safety and economy of traveling. From the perspective of road conditions, the main factor affecting the quality of road driving is the smoothness of the road surface. On the one hand, the uneven road surface will increase the driving resistance, cause driving bumps, affect driving speed and safety, and cause passenger fatigue and damage to goods; on the other hand, the uneven road surface will also accumulate rainwater, which will accelerate the damage of the road surface and affect the use of the road age and maintenance period. [0003] In addition, structures such as culverts, passages, and bridges account for an increasin...

AI Technical Summary

Problems solved by technology

At present, the theoretical method for researching the comfort of road-bridge transition sections is still stagnant in the half-vehicle model or the quarter-vehicle model. These vehicle models ignore the lateral overturning and rotation of the vehicle, and cannot completely and accurately reflect the actual movement of the vehicle.

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