Experiment device for detecting wind and sand resistance of bridge support

Abstract

The invention discloses an experiment device for detecting the wind and sand resistance of a bridge support. The experiment device comprises a fan, a protecting chamber and a sand storage box and is characterized in that the wind outlet of the fan is in butt joint with a wind inlet arranged in one lateral wall of the protecting chamber, the sand outlet of the sand storage box is in butt joint with the sand inlet in the protecting chamber, the sand inlet is located in the top surface of the protecting chamber on the rear side of the wind inlet, and the protecting chamber is provided with a screen for discharging air and filtering sand; a support bearing platform is arranged inside the protecting chamber, a support test piece is fixedly placed at a position, directly facing the wind inlet, inside the protecting chamber through the support bearing platform, an inclined sand collecting plate is arranged between the lateral wall of the protecting chamber and the support bearing platform in a surrounding manner, and the lowest part of the sand collecting plate is in butt joint with a movable sand collecting box. The experiment device has the advantages that the sand work environment of the bridge support in the northwest region is simulated to predict the wind and sand resistance and failure time of the bridge support, and accordingly the structure of the bridge support can be further improved, the performance increasing of the bridge support is benefited, and a scientific basis is provided for the design and construction decisions of bridges in the northwest region.

Description

technical field [0001] The invention relates to an experimental device for testing the wind and sand resistance performance of a bridge support, which belongs to a meteorological simulation experimental device for bridge basic components. Background technique [0002] Bearings are important components of bridges, and the special topography of Northwest China makes bridge structures widely used. Therefore, bearings are very common in road and bridge construction in Northwest China. Bearings play an irreplaceable role in the stability of bridges. It is very important to ensure the safety performance of bearings during their normal service life. Experimental methods can be used to determine the safety of bearings during their service life before engineering applications. For example, in the automotive field, in order to test the accident response problem when the car is running, it is often necessary to conduct experimental analysis of various accidents that may be encountered...

AI Technical Summary

Problems solved by technology

However, the experimental device for the wind-sand resistance performance of bridge bearings in a wind-sand environment has not been seen in public reports so far.

The wind and sand resistance performance test of bridge bearings mainly involves the sealing of the experimental devices. However, it is difficult to know the sealing effect of various sealing methods. Therefore, the wind and sand resistance performance experimental devices of bridge bearings need to be designed and developed urgently.

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