CN216891922U - Bridge deck structure at inverted T-shaped cover beam of simply supported steel-concrete composite beam bridge - Google Patents
Bridge deck structure at inverted T-shaped cover beam of simply supported steel-concrete composite beam bridge Download PDFInfo
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- CN216891922U CN216891922U CN202220079045.2U CN202220079045U CN216891922U CN 216891922 U CN216891922 U CN 216891922U CN 202220079045 U CN202220079045 U CN 202220079045U CN 216891922 U CN216891922 U CN 216891922U
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Abstract
The utility model relates to a bridge deck structure at an inverted T-shaped cover beam of a simply supported steel-concrete composite beam bridge, which comprises a simply supported steel girder, a concrete bridge deck, a welding nail connecting piece, an open pore connecting steel plate, a support, an inverted T-shaped cover beam and a bridge pier, wherein the inverted T-shaped cover beam consists of an upper inverted T-shaped cover beam web plate and a lower inverted T-shaped cover beam flange, the simply supported steel girder comprises an upper flange plate, a web plate and a lower flange plate, a plurality of welding nail connecting pieces arranged on the open pore connecting steel plate are arranged on the upper surface of the upper flange plate of the simply supported steel girder at certain intervals, the inverted T-shaped cover beam web plate is arranged between the beam ends of two adjacent simply supported steel girders, telescopic gaps are reserved between the beam ends and the inverted T-shaped cover beam web plate, the concrete bridge deck spans the upper part of the inverted T-shaped cover beam web plate and continuously extends between the upper parts of two adjacent simply supported steel girders, the open pore connecting steel plate is arranged between the upper surfaces of the upper flange plates of the two adjacent simply supported steel girders and is pre-embedded in the concrete bridge deck And the structure is simple.
Description
Technical Field
The utility model relates to a bridge deck structure at an inverted T-shaped cover beam of a simply supported steel-concrete composite beam bridge, and relates to the technical field of civil engineering.
Background
The steel-concrete combined simple beam can fully exert the material characteristics of high tensile strength of steel and high compressive strength of concrete, has the advantages of simple structure, definite stress, good ductility and the like, is convenient to construct, has high prefabrication degree, can adapt to a foundation with large settlement, and is popularized in medium and small spans. However, the expansion joints are often arranged at the connection position of the bridge deck of the simply supported composite beam bridge with two adjacent spans, the arrangement of the expansion joints can influence the comfort of the vehicle in driving, and the durability of the bridge can be influenced due to the defect of short service life of the expansion joints.
With the continuous application of the progress of bridge technology and new theoretical achievements in various fields, the steel-concrete combined continuous beam bridge is developed. The steel-mixed continuous composite beam has the advantages of large bridge clearance, large spanning capacity, large rigidity, light structural weight and the like. And the bridge deck of the steel-mixed continuous composite beam bridge has good continuity, and can well improve the driving comfort. However, the bridge deck connecting section of the steel-mixed continuous composite beam bridge bears a large negative bending moment, the concrete bridge deck is positioned in a tension area, the crack problem is easy to occur under the influence of various adverse load working conditions and deflection and slippage of the continuous composite beam, rainwater is likely to leak to the periphery of a shear part to cause rusting of the shear part, so that the structural rigidity and durability are reduced, and the service life of the bridge deck connecting structure is greatly influenced.
Based on the adverse effect of large hogging moment of the steel-concrete combined continuous beam bridge and in order to give full play to the material characteristics of steel and concrete, the steel-concrete combined simple beam bridge adopting the continuous bridge deck structure is a new idea for solving the problems, the structure can ensure the continuity of a concrete bridge deck, and the characteristics of simple structure, clear stress and good ductility of the simple steel-concrete combined beam bridge are reserved.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model aims to provide a bridge deck structure at an inverted T-shaped cover beam of a simply supported steel-concrete composite beam bridge.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a bridge deck structure at an inverted T-shaped cover beam of a simply supported steel-concrete composite beam bridge comprises a simply supported steel main beam, a concrete bridge deck, a welding nail connecting piece, an open pore connecting steel plate, a support, an inverted T-shaped cover beam and a pier, the inverted T-shaped cover beam consists of an upper inverted T-shaped cover beam web and a lower inverted T-shaped cover beam flange, the simply supported steel main beams all comprise upper flange plates, web plates and lower flange plates, a plurality of welding nail connecting pieces arranged on the perforated connecting steel plate are arranged on the upper surface of the upper flange plate of the simply supported steel girder at certain intervals, an inverted T-shaped cover beam web plate is arranged between the beam ends of two adjacent simply supported steel girders, telescopic gaps are reserved between the beam ends and the inverted T-shaped cover beam web plates, the concrete bridge deck slab spans the upper parts of the inverted T-shaped cover beam web plates and continuously extends between the upper parts of two adjacent simply supported steel main beams, the perforated connecting steel plate is installed between the upper surfaces of the upper flange plates of the two adjacent simply-supported steel main beams and is embedded inside the concrete bridge deck.
Preferably, the telescopic gaps are 2 cm-10 cm, the beam ends of the simply supported steel main beams are arranged on the supports, the supports are arranged on the upper surfaces of the inverted T-shaped cover beam flanges, and the inverted T-shaped cover beam flanges are located on the piers.
Preferably, also symmetrical arrangement has the weld nail connecting piece on the upper and lower surface of trompil connecting steel plate, the trompil connecting steel plate is located 1/3~2/3 range region of concrete decking thickness, the weld nail connecting piece of the upper and lower surface of trompil connecting steel plate does not expose the concrete decking, the weld nail connecting piece makes trompil connecting steel plate, concrete decking and simply supported steel girder be linked into whole through concreting.
Preferably, the upper surface of trompil connecting steel plate has also arranged the welding nail connecting piece, trompil connecting steel plate upper surface welding nail connecting piece, the welding nail connecting piece makes trompil connecting steel plate, concrete decking and simply supported steel girder link into a whole through concreting.
Preferably, the trompil connection steel plate is located 1/3~2/3 range region of concrete deck plate thickness, the regional upper and lower surface coating in middle part of trompil connection steel plate has two-layer epoxy phenolic aldehyde layer, and the parcel has two-layer glass silk cloth again in epoxy phenolic aldehyde layer outside, and the winding has two-layer polyethylene adhesive tape again in glass silk cloth outside, the regional outermost edge distance between the support that is greater than adjacent two simply supported steel girders on the pier along bridge length in trompil connection steel plate middle part.
Preferably, dividing seams are arranged at the beam ends of the simply supported steel girders between the outermost edge of the support longitudinal bridge and the outermost boundary of the perforated connecting steel plate longitudinal bridge, and the dividing seams are arranged on the upper surface and the lower surface of the concrete bridge deck; a polyurethane filling layer is filled in the dividing seams on the upper surface of the concrete bridge deck; and oil-immersed cork strips are embedded in the segmentation joints on the lower surface of the concrete bridge deck.
Compared with the prior art, the utility model has the following beneficial effects: the upper flanges of the adjacent steel main beams are connected into a whole by the perforated connecting steel plates, so that the problem of discontinuity of beam ends of the steel beams is effectively solved, the material characteristics of steel and concrete are fully exerted, and the characteristics of simple structure, definite stress and good ductility of the simply-supported steel-concrete composite beam bridge are reserved.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a structural elevation view of embodiment 1 of the present invention.
Fig. 2 is a plan view of the structure of embodiment 1 of the present invention.
Fig. 3 is a structural elevation view of embodiment 2 of the present invention.
Fig. 4 is a structural elevation view of embodiment 3 of the present invention.
Fig. 5 is a structural elevation view of embodiment 4 of the present invention.
Fig. 6 is a structural elevation view of embodiment 5 of the present invention.
Fig. 7 is a structural elevation view of embodiment 6 of the present invention.
Fig. 8 is a structural elevation view of embodiment 7 of the present invention.
Fig. 9 is a structural elevation view of embodiment 8 of the present invention.
In the figure: 1-bridge pier; 2-transverse bridge direction reinforcing steel bars; 3-longitudinal bridge direction reinforcing steel bars; 4-opening a connecting steel plate; 5-a wrapping layer; 6-a rubber isolation layer; 7-polyurethane filled layer; 8-oil-immersed cork strip; 9-a weld nail connector; 10-a support; 11-vertical stiffeners; 12-simply supported steel girders; 13-concrete deck slab; 14-asphalt concrete pavement layer; 15-inverted T-shaped cover beam flange; 16-vertical connecting steel bars; 17-inverted T-shaped capping web.
Detailed Description
The utility model is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 9, this embodiment 1 provides a bridge deck structure at an inverted T-shaped capping beam of a simply supported steel-concrete composite girder bridge, which includes a simply supported steel girder, a concrete deck, weld nail connectors, perforated connecting steel plates, a support, an inverted T-shaped capping beam, and a bridge pier, wherein the inverted T-shaped capping beam is composed of an upper inverted T-shaped capping web and a lower inverted T-shaped capping flange, the simply supported steel girder includes an upper flange plate, a web plate, and a lower flange plate, a plurality of weld nail connectors mounted on the perforated connecting steel plates are arranged on the upper surface of the upper flange plate of the simply supported steel girder at certain intervals, an inverted T-shaped capping web plate is arranged between beam ends of two adjacent simply supported steel girders, a telescopic gap is left between the beam end and the inverted T-shaped capping web plate, the concrete deck spans the upper portion of the inverted T-shaped capping web plate and extends continuously between the upper portions of two adjacent simply supported steel girders, the perforated connecting steel plate is installed between the upper surfaces of the upper flange plates of the two adjacent simply-supported steel main beams and is embedded inside the concrete bridge deck.
In embodiment 1 of the utility model, the telescopic gaps are all 2 cm-10 cm, the beam ends of the simply supported steel main beams are all arranged on supports, the supports are all arranged on the upper surfaces of the inverted-T-shaped cover beam flanges, and the inverted-T-shaped cover beam flanges are positioned on the piers.
In embodiment 1 of the utility model, the perforated connecting steel plate is located in the 1/3-2/3 range of the thickness of the concrete bridge deck, the middle area of the perforated connecting steel plate is provided with a wrapping layer, the wrapping layer is two epoxy phenolic aldehyde layers coated on the upper surface and the lower surface of the middle area of the perforated connecting steel plate, two layers of glass fiber cloth are wrapped outside the epoxy phenolic aldehyde layers, two layers of polyethylene rubber cloth are wound outside the glass fiber cloth, and the length of the middle area of the perforated connecting steel plate in the bridge direction is greater than the outermost edge distance between the supports of two adjacent simply-supported steel main beams on a bridge pier.
In embodiment 1 of the utility model, the simply supported steel girder ends between the outermost edge of the longitudinal bridge of the support and the outermost edge of the perforated connecting steel plate longitudinal bridge are provided with the dividing seams which are arranged on the upper surface and the lower surface of the concrete bridge deck; the width of a dividing seam on the upper surface of the concrete bridge deck is 2 mm-5 mm, the depth of the dividing seam is 2 cm-5 cm, and a polyurethane filling layer is filled in the dividing seam on the upper surface of the concrete bridge deck; the segmentation joint of concrete bridge panel lower surface embeds oily cork strip, the width of oily cork strip is 1cm ~3cm, and the height is 2cm ~5 cm.
In the embodiment 1 of the utility model, a rubber isolation layer with the thickness of 2-4mm is paved between the contact surfaces of the concrete bridge deck and the inverted T-shaped cover beam web.
In embodiment 1 of the present invention, no weld nail connecting member is provided between the concrete deck slab between the two adjacent concrete deck slab dividing seams and the simply supported steel girder at the beam end of the simply supported steel girder.
The construction method of the bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge in the embodiment 1 of the utility model comprises the following steps:
(1) construction of a pier: performing pier construction according to design requirements, installing a concrete bottom die and a concrete side die according to a construction drawing, binding a reinforcing mesh, pouring concrete and maintaining;
(2) processing a simply supported steel main beam: processing each component plate of the steel girder according to a simple steel girder processing drawing, assembling and welding each plate, and welding a welding nail connecting piece on an upper flange plate of the simple steel girder;
(3) processing the perforated connecting steel plate: processing a round hole at the position of the perforated connecting steel plate corresponding to the welding nail connecting piece of the simply supported steel girder, wherein the welding nail connecting piece of the upper flange plate of the simply supported steel girder is aligned with the central line of the round hole;
(4) simply-supported steel main beam erection: transporting the simply supported steel girder to a construction site, erecting the steel girder by adopting a hoisting or bridge erecting machine, placing a temporary support at the lower part of a vertical stiffening rib at the end part of the simply supported steel girder, and installing a permanent support after the simply supported steel girder is installed and fixed;
(5) installing the perforated connecting steel plate: sleeving the perforated connecting steel plate into the welding nail connecting piece of the upper flanges of the adjacent steel girders, and placing the perforated connecting steel plate in an 1/3-2/3 range of the thickness of the bridge deck plate to be cast with concrete; coating two layers of epoxy phenolic aldehyde on the upper and lower surfaces of the middle area of the perforated connecting steel plate, wrapping two layers of glass fiber cloth, and winding two layers of polyethylene adhesive cloth outside the glass fiber cloth;
(6) and (3) dividing joint construction: dividing seams are arranged at the beam ends of the simply supported steel girders between the outermost edges of the support longitudinal bridges and the outermost boundaries of the perforated connecting steel plate longitudinal bridges, polyurethane is filled in the dividing seams on the upper surface of the concrete bridge deck, and embedded oil-immersed cork strips are arranged in the dividing seams on the lower surface of the concrete bridge deck;
(7) and (3) bridge deck concrete construction: paving a rubber isolation layer with the thickness of 2-4mm between the contact surfaces of the concrete bridge deck and the inverted T-shaped cover beam web, installing a bridge deck concrete bottom die and a side die, and binding reinforcing steel bars of the bridge deck; through pouring and curing of concrete, when the concrete meets the design requirements, the formwork can be removed;
(8) construction of a bridge deck pavement layer: after the bridge deck concrete is demolded, the waterproof coiled material is coated on the surface of the concrete, and an asphalt concrete pavement layer is laid on the basis.
In the embodiment 1 of the present invention, the step (1), the step (2), and the step (3) are preferably constructed synchronously;
the construction method of the inverted T-shaped cover beam in the step (1) comprises the following two steps: firstly, a web plate of an inverted T-shaped cover beam does not extend into a bridge deck plate, and after a reinforcement cage is bound according to a cover beam construction drawing, concrete is poured and maintained to complete cover beam construction; secondly, the reinforcing steel bars of the inverted T-shaped cover beam web plate are provided with vertical connecting reinforcing steel bars extending into the bridge deck plate, the vertical connecting reinforcing steel bars exceed the top surface of the inverted T-shaped cover beam web plate by 10-20cm, and concrete is poured and maintained according to construction drawings; after the concrete reaches a certain strength, roughening the top surface of the inverted T-shaped cover beam web plate; the vertical connecting steel bars and the concrete bridge deck slab in the step (7) are directly cast and connected into a whole, or the vertical connecting steel bars and the concrete bridge deck slab are cast and connected into a whole after penetrating through the perforated connecting steel plates;
and (3) setting the dividing seams on the lower surface of the concrete bridge deck in the step (6) and binding the reinforcing steel bars of the bridge deck in the step (7) synchronously, wherein the setting of the dividing seams on the upper surface of the concrete bridge deck in the step (6) needs to be carried out after the concrete maintenance in the step (7) reaches certain strength.
In embodiment 2 of the present invention, as shown in fig. 3, the difference from embodiment 1 of the present invention is that a weld nail connecting piece is arranged on the upper surface of the perforated connecting steel plate, the weld nail connecting piece is welded on the upper surface of the perforated connecting steel plate, and the open connecting steel plate, the concrete deck plate and the simply supported steel girder are integrally connected by the weld nail connecting piece through concrete pouring. The top surface at the simply supported steel girder is placed to trompil connecting plate, and the trompil of trompil connecting plate is passed to simply supported steel girder upper flange board upper portion welding nail connecting piece, trompil connecting plate middle part region does not set up epoxy phenolic coating, glass silk cloth, polyethylene adhesive tape, the segmentation joint lower part embedded oily cork of not arranging.
In the embodiment 3 of the present invention, as shown in fig. 4, the difference from the embodiment 1 of the present invention is that the middle region of the perforated connection steel plate is not provided with the epoxy phenolic coating, the glass wool cloth, or the polyethylene adhesive cloth. The upper and lower surface of trompil connecting steel plate has also symmetrical arrangement to have the weld nail connecting piece, the trompil connecting steel plate is located 1/3~2/3 range region of concrete decking thickness, the weld nail connecting piece of the upper and lower surface of trompil connecting steel plate does not expose the concrete decking, the weld nail connecting piece makes trompil connecting steel plate, concrete decking and simply supported steel girder link into whole through concreting.
In embodiment 4 of the present invention, as shown in fig. 5, the difference from embodiment 1 of the present invention is that a tack welding connector is welded in the middle of the longitudinal bridging distance of the circular hole of the perforated connection steel plate.
In embodiment 5 of the present invention, as shown in fig. 6, the difference from embodiment 1 of the present invention is that vertical connecting steel bars are reserved in the inverted T-shaped capping beam web steel bar mesh, and the vertical connecting steel bars connect the inverted T-shaped capping beam and the concrete bridge deck into a whole by pouring concrete; the top surface of the inverted T-shaped cover beam is not provided with a rubber isolation layer.
In embodiment 6 of the present invention, as shown in fig. 7, the difference from embodiment 1 of the present invention is that a weld nail connecting piece is arranged on the upper surface of the perforated connecting steel plate, the perforated connecting steel plate is placed on the top surface of the simply supported steel girder, a vertical connecting steel bar is reserved on the top surface of the inverted T-shaped cover beam, the weld nail connecting piece on the upper flange plate of the simply supported steel girder and the vertical connecting steel bar reserved on the top surface of the inverted T-shaped cover beam penetrate through the perforations of the perforated connecting steel plate, and the inverted T-shaped cover beam and the concrete deck slab are connected into a whole by pouring concrete; the middle area of the perforated connecting steel plate is not provided with an epoxy phenolic coating, glass fiber cloth and polyethylene adhesive tape, the lower part of the segmentation joint is not provided with embedded oil-immersed cork, and the top surface of the inverted T-shaped cover beam is not provided with a rubber isolation layer.
In embodiment 7 of the present invention, as shown in fig. 8, the difference from embodiment 1 of the present invention is that the upper and lower surfaces of the perforated connecting steel plate are also symmetrically provided with the weld nail connecting pieces, the perforated connecting steel plate is located in the 1/3-2/3 range of the thickness of the concrete deck plate, the weld nail connecting pieces of the upper and lower surfaces of the perforated connecting steel plate do not expose out of the concrete deck plate, and the weld nail connecting pieces connect the perforated connecting steel plate, the concrete deck plate and the simple steel main beam into a whole by pouring concrete. Reserving vertical connecting steel bars in the inverted T-shaped cover beam web steel bar mesh, and connecting the inverted T-shaped cover beam and the concrete bridge deck into a whole by pouring concrete through the vertical connecting steel bars; the middle area of the perforated connecting steel plate is not provided with an epoxy phenolic coating, glass fiber cloth and polyethylene adhesive cloth; and the top surface of the cover beam is not provided with a rubber isolation layer.
In embodiment 8 of the present invention, as shown in fig. 9, the difference from embodiment 1 of the present invention is that vertical connecting steel bars are reserved in the inverted T-shaped capping beam web steel bar mesh, and the vertical connecting steel bars connect the inverted T-shaped capping beam and the concrete bridge deck into a whole by pouring concrete; welding a welding nail connecting piece in the middle of the longitudinal bridge-direction interval of the circular hole of the perforated connecting steel plate; the top surface of the inverted T-shaped cover beam is not provided with a rubber isolation layer.
The welding nail connecting piece is sleeved in the upper flange of the steel girder through the perforated connecting steel plate, so that the upper flanges of the adjacent steel girders are connected into a whole, the problem of discontinuous beam ends of the steel girders is effectively solved, the material characteristics of steel and concrete are fully exerted, and the characteristics of simple structure, definite stress and good ductility of the simply supported steel-concrete composite beam bridge are reserved. More importantly, the utility model avoids the problems of high manufacturing cost, complicated construction, poor crack width control effect and the like caused by the fact that the traditional steel beam bridge connecting structure adopts a tension high-strength prestressed bar, increases the bar arrangement rate of common steel bars and applies prestress to concrete by adopting a top-falling beam technology, and effectively reduces the adverse effects of tension cracking, poor structural durability and the like of a concrete slab of the steel-concrete composite beam bridge deck connecting structure.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a bridge deck structure of simple steel-thoughtlessly combination beam bridge shape of falling T bent cap department, includes simple steel girder, concrete deck slab, weld nail connecting piece, trompil binding post, support, shape of falling T bent cap, pier, the shape of falling T bent cap comprises upper portion shape of falling T bent cap web and the shape of the cover beam edge of a wing of the lower part shape of falling T, simple steel girder all includes top flange board, web and bottom flange board, the top flange board upper surface of simple steel girder all arranges a plurality of weld nail connecting pieces of installing on the trompil binding post according to a determining deviation, its characterized in that: the concrete bridge deck is arranged between the upper surfaces of the upper flange plates of the two adjacent simply-supported steel girders in a pre-embedded mode.
2. The bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge according to claim 1, wherein: the telescopic gaps are 2 cm-10 cm, the beam ends of the simply supported steel main beams are arranged on the supports, the supports are arranged on the upper surfaces of the inverted T-shaped cover beam flanges, and the inverted T-shaped cover beam flanges are located on the bridge piers.
3. The bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge according to claim 1, wherein: the upper and lower surface of trompil connecting steel plate has also symmetrical arrangement to have the weld nail connecting piece, the trompil connecting steel plate is located 1/3~2/3 range region of concrete decking thickness, the weld nail connecting piece of the upper and lower surface of trompil connecting steel plate does not expose the concrete decking, the weld nail connecting piece makes trompil connecting steel plate, concrete decking and simply supported steel girder link into whole through concreting.
4. The bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge according to claim 1, wherein: the upper surface of trompil connecting plate has also arranged the weld nail connecting piece, trompil connecting plate upper surface welding weld nail connecting piece, the weld nail connecting piece makes trompil connecting plate, concrete deck slab and simply supported steel girder link into an entirety through concreting.
5. The bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge according to claim 1, wherein: the trompil connecting steel plate is located 1/3~2/3 scope region of concrete deck plate thickness, the regional upper and lower surface coating in middle part of trompil connecting steel plate has two-layer epoxy phenolic aldehyde layer, and the parcel has two-layer glass silk cloth again outside the epoxy phenolic aldehyde layer, and the winding has two-layer polyethylene adhesive tape again outside the glass silk cloth, the regional outermost edge distance between the support that is greater than adjacent two simply supported steel girders on the pier along bridge length in the middle part of the trompil connecting steel plate.
6. The bridge deck structure at the inverted T-shaped cover beam of the simply supported steel-concrete composite beam bridge according to claim 1, wherein: dividing seams are arranged at the beam ends of the simply supported steel main beams between the outermost edge of the support longitudinal bridge and the outermost edge of the perforated connecting steel plate longitudinal bridge, and the dividing seams are arranged on the upper surface and the lower surface of the concrete bridge deck; a polyurethane filling layer is filled in the dividing seams on the upper surface of the concrete bridge deck; and oil-immersed cork strips are embedded in the segmentation joints on the lower surface of the concrete bridge deck.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220079045.2U CN216891922U (en) | 2022-01-13 | 2022-01-13 | Bridge deck structure at inverted T-shaped cover beam of simply supported steel-concrete composite beam bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220079045.2U CN216891922U (en) | 2022-01-13 | 2022-01-13 | Bridge deck structure at inverted T-shaped cover beam of simply supported steel-concrete composite beam bridge |
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