Structure for preventing bridge concrete from being eroded by salt melt water

Abstract

The utility model discloses a structure for preventing bridge concrete from being eroded by salt melt water. The structure comprises a bridge concrete guardrail, a triangular mortar cushion layer, a gravel blind ditch, a rubber water stop belt and a waterproof plate assembly. The triangular mortar cushion layer is tightly attached to the bridge deck slab and the bottom of a bridge concrete guardrail in an isosceles triangle mode, the rubber water-stop belt is tightly attached to the bridge deck slab and the triangular mortar cushion layer, and the bridge deck asphalt lower face layer and the bridge deck asphalt upper face layer are laid on the bridge deck slab; the gravel blind ditch is laid on the rubber waterstop, and the waterproof plate assembly is arranged on a bridge concrete guardrail; a first waterproof plate and a second waterproof plate which are positioned and installed in the waterproof plate assembly play a waterproof role on a bridge concrete guardrail, and meanwhile, a rubber waterstop and a triangular mortar cushion layer are additionally arranged at the bottom of a broken stone blind ditch on the edge of a bridge; the snow-melting agent can effectively isolate a mixed solution of the snow-melting agent and snow water from being in contact with a bridge deck and a bridge concrete guardrail during snow removal on a road surface, prevent salt in the snow-melting agent from eroding concrete, and prolong the service life of the concrete.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a structure for preventing salt melt water from corroding bridge concrete. Background Art

[0002] The existing Chinese patent document with announcement number CN216663802U discloses a bridge assembled concrete guardrail, including multiple sections of channel steel arranged along the longitudinal direction of the road and pre-buried in the main beam flange plate, the channel steel opening is facing upward, and shear nails are vertically fixed on the web of the channel steel. The guardrail also includes multiple sections of prefabricated guardrail bodies, and the bottom surface of the prefabricated guardrail bodies is provided with empty grooves opening downward. The multiple sections of prefabricated guardrail bodies are arranged above the main beam flange plate and each section of channel steel is respectively located in the empty groove of each section of the prefabricated guardrail body, and the prefabricated guardrail body is provided with grouting holes connected with the empty grooves; the guardrail can speed up road construction efficiency and reduce construction costs.

[0003] However, in the above schemes and the prior art, as society's expectations for highway service performance increase, in rainy and snowy weather in winter, road maintenance departments usually adopt the method of spreading snow-melting agents or salt water to remove snow and melt ice to prevent roads from icing and affecting driving safety; the components of snow-melting agents are mostly salts, which will penetrate into the bridge deck or splash onto the bridge guardrails under the action of driving after mixing with snow water after spreading, thereby corroding the bridge concrete and affecting the life of the bridge concrete.

[0004] Therefore, the utility model proposes a structure for preventing salt melt water from corroding bridge concrete to solve the above-mentioned problem. Utility Model Content

[0005] The utility model aims to provide a structure for preventing salt melt water from corroding bridge concrete, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a structure for preventing salt melt water from corroding bridge concrete includes a bridge concrete guardrail, a triangular mortar cushion layer, a gravel blind ditch, a rubber waterstop and a waterproof board assembly; the triangular mortar cushion layer is in the form of an isosceles triangle and is tightly arranged at the bottom of the bridge deck and the bridge concrete guardrail, the rubber waterstop is tightly attached to the bridge deck and the triangular mortar cushion layer, and the bridge deck asphalt lower layer and the bridge deck asphalt upper layer are laid on the bridge deck; the gravel blind ditch is laid on the rubber waterstop, and the waterproof board assembly is arranged on the bridge concrete guardrail.

[0007] Preferably, the waterproof board assembly includes a first waterproof board, a second waterproof board, a warning column, a rubber water stop ring pad, a protrusion, a groove and a positioning hole; the upper end of the first waterproof board is provided with grooves equidistantly, and the upper end of the second waterproof board is provided with positioning holes equidistantly; the warning columns are equidistantly fixed at the upper end of the bridge concrete guardrail, and the protrusions are equidistantly fixed at the side ends of the bridge concrete guardrail.

[0008] Preferably, the thickness of the gravel blind ditch is the same as the thickness of the lower asphalt layer of the bridge deck.

[0009] Preferably, drainage holes are equidistantly arranged on the bottom side of the concrete guardrail of the bridge or the bottom of the bridge deck, and rubber waterstops are adhered to the inside of the drainage holes. The rubber waterstops on the inside of the drainage holes are overlapped with the rubber waterstops at the bottom of the gravel blind ditch, and the rubber waterstops on the inside of the drainage holes are located at the lower layer of the overlap.

[0010] Preferably, the first waterproof board is equidistantly, continuously and tightly adhered to the side end of the bridge concrete guardrail, and the lower part of the first waterproof board is overlapped with the rubber waterstop, and the rubber waterstop at the overlapping position is located in the lower layer of the overlap; the protrusions and grooves are set at corresponding positions and have the same number of groups, and the two are snap-connected.

[0011] Preferably, the second waterproof board is equidistantly, continuously and tightly adhered to the upper end of the concrete guardrail of the bridge, the side of the second waterproof board is U-shaped, and the first waterproof board is clamped in the U-shaped groove of the second waterproof board; the warning column and the positioning hole are set at corresponding positions and have the same number of groups, the two are plugged in, and a rubber water stop ring gasket is glued at the plug-in position of the warning column and the positioning hole, and the rubber water stop ring gasket is sleeved on the warning column.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The first waterproof plate and the second waterproof plate positioned and installed in the waterproof plate assembly play a waterproof role for the bridge concrete guardrail. At the same time, a rubber waterstop and a triangular mortar cushion layer are added to the bottom of the gravel blind ditch at the edge of the bridge. This can effectively isolate the contact between the mixture of snow melting agent and snow water during snow removal from the road surface and the bridge deck and the bridge concrete guardrail, prevent the salt in the snow melting agent from eroding the concrete, and extend the service life of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection of the concrete guardrail structure of the bridge of the utility model;

[0016] Figure 3 This is a schematic diagram of the first waterproof board structure connection of the utility model;

[0017] Figure 4 This is a schematic diagram of the second waterproof board structure connection of the utility model.

[0018] In the figure: bridge concrete guardrail 1, triangular mortar cushion layer 2, gravel blind ditch 3, rubber waterstop 4, waterproof board assembly 5, first waterproof board 501, second waterproof board 502, warning column 503, rubber waterstop ring pad 504, protrusion 505, groove 506, positioning hole 507, bridge deck asphalt lower layer 6, bridge deck asphalt upper layer 7. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model are described clearly and completely below. The embodiments of the utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4The utility model provides a technical solution: a structure for preventing salt melt water from corroding bridge concrete comprises a bridge concrete guardrail 1, a triangular mortar cushion layer 2, a crushed stone blind ditch 3, a rubber waterstop 4 and a waterproof board assembly 5; the triangular mortar cushion layer 2 is in the form of an isosceles triangle and is tightly arranged at the bottom of the bridge deck and the bridge concrete guardrail 1, the rubber waterstop 4 is tightly attached to the bridge deck and the triangular mortar cushion layer 2, and plays a waterproof role, and one side of the bridge concrete guardrail 1 is slightly higher than the triangular mortar cushion layer 2, and the bridge deck asphalt lower layer 6 and the bridge deck asphalt upper layer 7 are laid on the bridge deck; the crushed stone blind ditch 3 is laid on the rubber waterstop 4, and the thickness of the crushed stone blind ditch 3 is the same as the thickness of the bridge deck asphalt lower layer 6; ... Drainage holes are equidistantly arranged on the bottom side of the concrete guardrail 1 or the bottom of the bridge deck to facilitate downward or side drainage. A rubber waterstop 4 is adhered to the inner side of the drainage hole, and the rubber waterstop 4 on the inner side of the drainage hole is overlapped with the rubber waterstop 4 at the bottom of the gravel blind ditch 3. The rubber waterstop 4 on the inner side of the drainage hole is located at the lower layer of the overlap to prevent salt melt water from corroding the bridge concrete; a waterproof board assembly 5 is arranged on the bridge concrete guardrail 1, and the waterproof board assembly includes a first waterproof board 501, a second waterproof board 502, a warning column 503, a rubber waterstop ring gasket 504, a protrusion 505, a groove 506 and a positioning hole 507; the upper end of the first waterproof board 501 is equidistantly provided with grooves 506, and the second waterproof board 5 02, positioning holes 507 are equidistantly provided on the upper end of the bridge concrete guardrail 1; warning posts 503 are equidistantly fixedly arranged on the upper end of the bridge concrete guardrail 1, which serves as a warning and is convenient for installing the second waterproof board 502; protrusions 505 are equidistantly fixedly arranged on the side end of the bridge concrete guardrail 1, which is convenient for installing the first waterproof board 501; the first waterproof board 501 is equidistantly and continuously tightly adhered to the side end of the bridge concrete guardrail 1, the adjacent first waterproof boards 501 are snap-fitted and the joints are waterproofed, and the lower part of the first waterproof board 501 is overlapped with the rubber waterstop 4, and the rubber waterstop 4 at the overlapping position is located in the overlapping lower layer; the protrusions 505 and the grooves 506 are set at corresponding positions and have the same number of groups, and the two are snap-fitted, which is used for the first waterproof The second waterproof plate 502 is equidistantly and continuously pasted to the upper end of the bridge concrete guardrail 1, and the adjacent second waterproof plates 502 are snap-fitted and the joints are waterproofed. The side of the second waterproof plate 502 is U-shaped, and the first waterproof plate 501 is snap-fitted into the U-shaped groove of the second waterproof plate 502; the warning column 503 and the positioning hole 507 are set in corresponding positions and have the same number of groups. The two are plugged in for the positioning installation of the second waterproof plate 502, and a rubber water stop ring gasket 504 is glued at the plug-in position of the warning column 503 and the positioning hole 507. The rubber water stop ring gasket 504 is sleeved on the warning column 503, and the plug-in position of the warning column 503 and the positioning hole 507 is waterproofed.

[0021] When the utility model is in use, after the triangular mortar cushion layer 2 is laid, the rubber waterstop 4 is laid and the drainage holes are preset. The first waterproof plate 501 is positioned and installed on the side end of the bridge concrete guardrail 1 by means of the clamping connection between the protrusion 505 and the groove 506. Then, the second waterproof plate 502 is positioned and installed on the upper end of the bridge concrete guardrail 1 by means of the insertion of the warning column 503 and the positioning hole 507. Then, the rubber waterstop ring gasket 504 is set to waterproof the insertion position of the warning column 503 and the positioning hole 507. Then, the gravel blind ditch 3 is filled, and the bridge deck asphalt lower layer 6 and the bridge deck asphalt upper layer 7 are laid.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A structure to prevent salt melt water from corroding bridge concrete. Features: The invention comprises a bridge concrete guardrail (1), a triangular mortar cushion layer (2), a crushed stone blind ditch (3), a rubber waterstop (4) and a waterproof board assembly (5); the triangular mortar cushion layer (2) is arranged in an isosceles triangle form close to the bottom of the bridge deck and the bridge concrete guardrail (1); the rubber waterstop (4) is closely attached to the bridge deck and the triangular mortar cushion layer (2); the bridge deck asphalt lower layer (6) and the bridge deck asphalt upper layer (7) are laid on the bridge deck; the crushed stone blind ditch (3) is laid on the rubber waterstop (4); and the waterproof board assembly (5) is arranged on the bridge concrete guardrail (1).

2. A structure for preventing salt melt water from corroding bridge concrete according to claim 1, Features: The waterproof board assembly comprises a first waterproof board (501), a second waterproof board (502), a warning column (503), a rubber water stop ring gasket (504), a convex block (505), a groove (506) and a positioning hole (507); the first waterproof board (501) has grooves (506) equidistantly formed at the upper end, and the second waterproof board (502) has positioning holes (507) equidistantly formed at the upper end; the warning column (503) is equidistantly fixedly arranged at the upper end of the bridge concrete guardrail (1), and the convex block (505) is equidistantly fixedly arranged at the side end of the bridge concrete guardrail (1).

3. A structure for preventing salt melt water from corroding bridge concrete according to claim 1, Features: The thickness of the gravel blind ditch (3) is the same as the thickness of the lower asphalt layer (6) of the bridge deck.

4. A structure for preventing salt melt water from corroding bridge concrete according to claim 1, Features: The bottom side of the bridge concrete guardrail (1) or the bottom of the bridge deck is equidistantly provided with drainage holes, and a rubber waterstop (4) is adhered to the inner side of the drainage hole. The rubber waterstop (4) on the inner side of the drainage hole is overlapped with the rubber waterstop (4) at the bottom of the gravel blind ditch (3), and the rubber waterstop (4) on the inner side of the drainage hole is located at the lower layer of the overlap.

5. A structure for preventing salt melt water from corroding bridge concrete according to claim 2, Features: The first waterproof plate (501) is equidistantly and continuously adhered to the side end of the bridge concrete guardrail (1), and the lower part of the first waterproof plate (501) is overlapped with the rubber waterstop (4), and the rubber waterstop (4) is located at the overlapped lower layer; the protrusions (505) and the grooves (506) are arranged at corresponding positions and have the same number of groups, and the two are snap-connected.

6. A structure for preventing salt melt water from corroding bridge concrete according to claim 2, Features: The second waterproof plate (502) is equidistantly and continuously adhered to the upper end of the bridge concrete guardrail (1); the side of the second waterproof plate (502) is arranged in a U shape, and the first waterproof plate (501) is clamped in the U-shaped groove of the second waterproof plate (502); the warning column (503) and the positioning hole (507) are arranged at corresponding positions and have the same number of groups, and the two are plugged together; a rubber water stop ring gasket (504) is glued at the plugging position of the warning column (503) and the positioning hole (507), and the rubber water stop ring gasket (504) is sleeved on the warning column (503).

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