Bridge expansion device and its expansion adjustment member

Abstract

The invention relates to a bridge expansion device and an expansion adjusting component thereof. The expansion adjusting component comprises an expansion back and a reinforcing beam, wherein a forward expanding expansion beam is arranged at the upper end of the expansion back; the reinforcing beam extends backward, and the upper end face of the reinforcing beam is used for pressing and matching with a wheel; and the front end of the reinforcing beam is arranged on the expansion back and / or the expansion beam. The reinforcing beam which extends backward and of which the upper end face is used for pressing and matching with the wheel is arranged on the expansion back and / or the expansion beam, so that the contact area between the bridge expansion device and the wheel is increased by the reinforcing beam and the expansion beam, and thus the impact pressure of the wheel to the bridge expansion device is reduced; and the extending directions of the reinforcing beam and the expansion beam are opposite to each other, so that the distances from the overhanging ends of the reinforcing beam and the expansion beam to the expansion back are both not too far, and the structure strength of the reinforcing beam and the expansion beam is ensured.

Description

technical field [0001] The invention relates to a bridge telescopic device and a telescopic adjusting member thereof. Background technique [0002] As we all know, under the influence of temperature changes, concrete shrinkage and creep, uneven settlement of the foundation, and vehicle loads, the length of the bridge will change, resulting in displacement of the beam end. In order to adapt to this displacement and maintain smooth driving, it is necessary to set Bridge expansion joints. It can be seen that the role of bridge expansion joints is to adjust the displacement between the superstructure caused by temperature changes, vehicle load environment characteristics and physical properties of building materials. Generally speaking, expansion joints should have good durability, driving comfort, construction convenience and maintenance simplicity. [0003] Existing bridge telescopic devices such as the Chinese patent CN1464141A discloses the "telescopic adjustment member an...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a telescopic adjustment member to solve the problem in the prior art that the telescopic adjustment member is subjected to a large impact pressure of the vehicle and has a low service life; Bridge expansion device for components

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