A large displacement seamless composite expansion joint and a bridge
A large displacement, expansion joint technology, applied in bridges, bridge parts, bridge construction and other directions, can solve the problems of complex structure, easy entry of sand and gravel particles, affecting the use function, etc., to achieve reasonable structure, convenient and flexible construction and maintenance, and suitable for wide range of effects
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[0015] Specific implementation one: as Figure 1~Figure 5 As shown, the present invention discloses a large-displacement seamless composite expansion joint, which includes a water stop belt 2, an elastic filling belt 7, two joists 1, two paving layers 8 and a plurality of precast concrete blocks 3, all of which are The cross-sections of the two joists 1 are both right-angled trapezoids, and the lower bottom of each joist 1 is horizontally extended with a protruding portion 1-1 in the direction of the inclined plane. The protruding portion 1-1 of the two joists 1 The waterstops 2 are installed at opposite intervals, and the waterstop 2 is loosely installed between the two protruding parts 1-1, and a row of combs is fixed along the length direction of the inclined surface of each joist 1 and the angle position of the protruding part 1-1. Plate 1-2, the comb plate 1-2 is a parallelogram in shape and the direction is consistent with the direction of the protruding part 1-1, the pl...
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[0016] Specific implementation two: as figure 1 , 2 , 4, this embodiment is a further description of the specific embodiment 1, the vertical surfaces of the two joists 1 are respectively fixed with a row of embedded steel plates 1-3 along the length direction, the embedded steel plates 1- 3 are welded and fixed with connecting steel bars 4 .
Example Embodiment
[0017] Specific implementation three: as figure 1 , 3 As shown, this embodiment is a further description of the specific embodiment 1 or the specific embodiment 2. The opposite end faces of the two protruding parts 1-1 are respectively provided with grooves, and the water stop belt 2 is tightly plugged. and clamped between the two grooves.
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