Ultra-shallow-buried comb plate bridge expansion device
A technology of telescopic device and comb teeth, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problem of unsatisfactory connection flatness between telescopic panels and bridge deck, unsatisfactory connection flatness between telescopic tooth plates and bridge decks, etc. The amount of concrete pouring cannot be accurately grasped, etc., to achieve the effects of improving shear resistance, convenient construction, and short operating time
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[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] see Figure 1 to Figure 8 , an ultra-shallow buried comb-tooth plate bridge telescopic device of the present invention, comprising abutment beam ends, expansion joint notches, fixed comb-tooth plates 4 and movable comb-tooth plates 7, pre-set between two adjacent abutment beam ends There is an expansion joint notch, which is characterized in that: the upper surfaces of the fixed comb plate 4 and the movable comb plate 7 are flat, and the fixed comb plate 4 and the movable comb plate 7 pass through the comb teeth at the joint. The structures intersect each other, and the upper surface of the fixed comb plate 4 and / or the movable comb plate 7 is provided with a plurality of overflow holes 5 passing through the comb plate; the bottom surface of the fixed comb plate 4 is provided with a dust-proof metal plate 6, A slurry overflow ...
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