CN216663804U

CN216663804U - Seamless steel bridge floor structure of road and bridge

Info

Publication number: CN216663804U
Application number: CN202123092761.9U
Authority: CN
Inventors: 任爱琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-03
Anticipated expiration: 2031-12-10

Abstract

The utility model provides a seamless steel bridge deck structure of a road bridge, which comprises more than two prefabricated beams arranged in parallel, wherein each prefabricated beam comprises a beam main body and wing plates, a net rack and prefabricated plate steel bars welded with the net rack are poured in the beam main body, the top ends of the prefabricated plate steel bars are not lower than the top surface of the beam main body, each net rack comprises longitudinal bars and transverse bars, the beam main body is provided with a beam bottom surface and two beam side surfaces, two ends of each transverse bar extend out of the beam side surface on the corresponding side, bent sections bent upwards are arranged at the tail ends of two ends of each transverse bar, the wing plates are fixedly connected to the two beam side surfaces, the bottom surfaces of the wing plates are flush with the beam bottom surface, the top surfaces of the wing plates are positioned below the transverse bars, and the overhanging edges of the wing plates are positioned outside the bent sections when being observed from the overlooking direction. The problem of the great inconvenient transportation of width that brings because of prefabricated roof beam needs whole manufacturing among the prior art is avoided, the width can be formulated according to road crossing rule restriction to the precast beam of this structure, waits to transport to the work position after, realizes the manufacturing of whole roof beam through the concatenation and at two roof beam handing-over departments benefit pouring concrete.

Description

Seamless steel bridge floor structure of road and bridge

Technical Field

The utility model relates to the technical field of road and bridge construction, in particular to a road and bridge seamless steel bridge deck structure.

Background

Road and bridge usually consists of multiple spans, each span has expansion joints for expansion and contraction of the material, and various expansion devices are provided to make the vehicle pass through the bridge surface stably and meet the deformation requirement of the bridge surface. Bridge telescoping device is very easily damaged and arouses the destruction of bridge floor and even bridge structures after long-term the use, and can arouse bigger vehicle impact load, influences the driving travelling comfort. Therefore, a road and bridge seamless steel bridge deck structure is developed for solving the problems, for example, the utility model with the publication number of CN206828961U and the utility model patent with the publication number of CN107059613A disclose a road and bridge seamless steel bridge deck structure, which belongs to the field of road and bridge construction, the structure comprises two bridge abutments, a plurality of piers, a plurality of multi-span precast beams and the like, and the upper part of the multi-span precast beam is provided with a steel bridge deck continuously and seamlessly spanning the multi-span precast beam and asphalt concrete paved on the steel bridge deck, thereby forming the road and bridge seamless steel bridge deck structure, and the two sides of the transverse outer part of the steel bridge deck are provided with anti-collision guardrails, and a plurality of stoppers arranged along the longitudinal direction of the bridge at equal intervals are arranged between the anti-collision guardrails and the steel bridge deck; meanwhile, drain holes are formed in the outer edges of the two sides of the asphalt concrete, and a drain pipe is arranged in the anti-collision guardrail and used for communicating the drain holes with the outside of the bridge floor.

The precast beam is of a reinforced concrete structure prefabricated in an industrial manner, needs to be manufactured in a whole span mode, is large in single-span diameter, is easy to be too wide especially in width of a component, often causes the problem of ultra-wide and ultra-limited transportation vehicles, and brings great inconvenience to transportation when passing through gateway type facilities such as highway toll stations and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a road and bridge seamless steel bridge deck structure which can be produced in a factory in a fixed width mode so as to solve the transportation problem of a precast beam.

In order to solve the technical problem, the technical scheme of the utility model is as follows:

the utility model provides a seamless steel bridge face structure of road bridge, including the precast beam of putting more than two side by side, the precast beam includes roof beam main part and pterygoid lamina, pour the rack in the roof beam main part and with rack welded precast slab reinforcing bar, the top of precast slab reinforcing bar is not less than roof beam main part top surface, the rack is including indulging muscle and horizontal muscle, the roof beam main part has bottom of the girder face and two roof beam sides, the both ends of horizontal muscle stretch out in the roof beam side that corresponds the side, the end at horizontal muscle both ends is provided with the bending section of upwards bending, two roof beam sides have all linked firmly the pterygoid lamina, the bottom surface and the bottom of the roof beam face of pterygoid lamina flush, the top surface of pterygoid lamina is located the below of horizontal muscle, the outside that the limit of encorbelmenting of following overlooking the direction observation pterygoid lamina is located the bending section.

Further: the top end of the bending section is not higher than the top end of the beam main body.

Further: and the auxiliary ribs are poured in the wing plates.

Further: the auxiliary ribs comprise transverse auxiliary ribs with the orientation consistent with that of the transverse ribs, the outer side ends of the transverse auxiliary ribs are located in the wing plates, and the inner side ends of the transverse auxiliary ribs are located in the beam main body.

Further: the auxiliary ribs also comprise longitudinal auxiliary ribs, and the orientation of the longitudinal auxiliary ribs is consistent with that of the longitudinal ribs.

Further: each wing plate is internally provided with a single longitudinal auxiliary rib and a plurality of transverse auxiliary ribs, and the longitudinal auxiliary ribs are fixedly connected to the outer side ends of the transverse auxiliary ribs and are close to the overhanging edges of the wing plates.

Further: still include on fixed connection the rack and pour the steel bar truss within the roof beam main part, steel bar truss puts along indulging the muscle direction.

Further: the number of the precast slab steel bars is more than four, and the same welding steel plate is welded at the top end of every four precast slab steel bars forming rectangular distribution.

Further: the quantity of prefabricated plate reinforcing bar is more than four, and every four prefabricated plate reinforcing bars that form the rectangle and distribute are two liang of a set of, and the welding of the top of the prefabricated plate reinforcing bar of same group has same root welding billet, and two sets of welding billets are parallel.

By adopting the technical scheme, the seamless steel bridge deck structure of the road and bridge has the technical effects that the problem that the existing seamless steel bridge deck structure of the road and bridge is large in width and inconvenient to transport due to the fact that the precast beam needs to be integrally manufactured is solved, the width of the precast beam of the structure can be set according to the road intersection rule, and after the precast beam is transported to a working position, the whole beam is manufactured by splicing and pouring concrete at the joint of the two beams. In addition, the wing plate of the precast beam can play a role of pouring the template, so that the corresponding workload is saved. And because of the bending section upwards buckles, the limit of encorbelmenting of pterygoid lamina is located the outside of bending section, so adjacent two precast beams can not receive the interference of horizontal muscle when the concatenation, can easily realize the operation that the limit of encorbelmenting of two relative pterygoid laminas supports or leaves the slit under the state of lifting by crane, later because the bending section of standing up does not hinder the operating space of handing-over gap top, can be convenient carry out the construction operation of injecting glue or packing the adhesive tape and can not receive the influence of horizontal muscle to it, construction operating efficiency is very high. In addition, the operation of straightening the bending section by using the sleeve pipe is included, all construction operation is only carried out on the top surface of the precast beam, the related operation of ascending and lifting the bottom plate of the precast beam below the beam in the prior precast beam is omitted, and the precast beam is labor-saving, time-saving and high in safety.

Drawings

FIG. 1 is a schematic front sectional view of the structure of embodiment 1;

FIG. 2 is a schematic plan view of the structure of embodiment 1;

FIG. 3 is a state diagram in use of embodiment 1;

FIG. 4 is a front sectional view showing a schematic structure of embodiment 2;

FIG. 5 is a schematic plan view of the structure of example 2;

FIG. 6 is a front sectional view showing a schematic structure of embodiment 3;

the steel plate comprises 1-bending sections, 2-transverse ribs, 3-steel bar trusses, 4-beam side faces, 5-wing plates, 6-auxiliary ribs, 7-longitudinal ribs, 8-beam main bodies, 9-transverse auxiliary ribs, 10-longitudinal auxiliary ribs, 11-beam bottom faces, 12-net racks, 13-precast slab steel bars, 14-welded steel plates, 15-welded steel bars and 16-fasteners.

Detailed Description

First, the terms of orientation such as "top, bottom, left, right, front, back, and front" and "top and bottom" are used with respect to the coordinate system shown in fig. 1 unless otherwise specified.

Example 1

As shown in fig. 1 to 3, the seamless steel bridge deck structure for road and bridge of the present embodiment includes two or more precast beams arranged in parallel, where the precast beams include a beam main body 8 and a wing plate 5. A net frame 12 and precast slab steel bars 13 welded with the net frame 12 are cast in the beam main body 8, the top ends of the precast slab steel bars 13 are not lower than the top surface of the beam main body 8 so as to be used for welding precast slab steel plates, and the number and the positions of the precast slab steel bars 13 depend on the positions of the fasteners 16. The net frame 12 comprises longitudinal bars 7 and transverse bars 2. The beam main body 8 is provided with a beam bottom surface 11 and two beam side surfaces 4, two ends of the transverse rib 2 extend out of the beam side surfaces 4 on the corresponding sides, and the tail ends of the two ends of the transverse rib 2 are provided with bending sections 1 which are bent upwards. The two beam sides 4 are fixedly connected with wing plates 5, the bottom surfaces of the wing plates 5 are flush with the beam bottom surface 11, the top surfaces of the wing plates 5 are positioned below the transverse ribs 2, and when viewed from the overlooking direction (namely the direction of fig. 2), the overhanging edges of the wing plates 5 (namely the side edges of the wing plates 5 extending out of the beam main body 8) are positioned on the outer sides of the bending sections 1 (namely farther from the central line of the precast beam).

When the precast beam of the road and bridge seamless steel bridge deck structure is used, the precast beams are placed side by side on a single bridge span. Then, as shown in fig. 3, the overhanging edges of the two opposite wing plates 5 are abutted or a small gap is left, then the gap is filled and sealed by sealing means such as glue injection or adhesive tape pasting, and then a long sleeve is sleeved on the erected bending section 1 to be straightened to reach the state shown in fig. 3, finally, concrete can be poured into a formwork groove formed by the two opposite beam sides 4 and the wing plates 5 to complete the integral construction of the single-span precast beam, and a steel bar truss 3 or a precast slab steel bar 13 can be additionally arranged in the groove before pouring. And after the integral construction of the precast beam is finished, the precast slab steel plates can be welded on the precast slab reinforcing steel bars 13, and the like.

This seamless steel bridge face structure of road and bridge has avoided among the current seamless steel bridge face structure of road and bridge, because of the great inconvenient problem of transporting of width that precast beam need make whole and bring, the precast beam of this structure can be according to road traffic rule restriction and formulate the width, after waiting to transport the work position, realizes the manufacturing of whole roof beam through the concatenation and at two roof beam handing-over departments benefit pouring concrete. In addition, the wing plate 5 of the precast beam can play a role of pouring the template, so that the corresponding workload is saved. And because of the bending section 1 upwards buckles, the limit of encorbelmenting of pterygoid lamina 5 is located the outside of bending section 1, so adjacent two precast beams can not receive the interference of horizontal muscle 2 when the concatenation, can easily realize under the state of lifting by crane that the limit of encorbelmenting of two relative pterygoid laminas 5 supports or leaves the operation of slit, later because the bending section 1 of standing does not hinder the operating space of handing-over gap top, can be convenient carry out the construction operation of injecting glue or packing the adhesive tape and can not receive the influence of horizontal muscle 2 to it, construction operating efficiency is very high. In addition, the operation of straightening the bending section 1 by using the sleeve pipe is included, all construction operation is only carried out on the top surface of the precast beam, the related operation of ascending and lifting the bottom plate of the precast beam below the beam in the prior precast beam is omitted, and the precast beam is labor-saving, time-saving and high in safety.

In addition, this embodiment is for reinforcing precast beam intensity, and it still includes steel bar truss 3 that fixed connection is on rack 12 and is pour in roof beam main part 8, and steel bar truss 3 puts along indulging muscle 7 direction. Therefore, the bending strength of the precast beam in the span direction can be increased, and the precast beam can adapt to bridges with larger spans.

The top end of the bent section 1 of the present embodiment is set not higher than the top end of the beam main body 8. The arrangement is that the precast beams can be stacked together in the storage and transportation processes, and the top end of the bending section 1 is not higher than the top end of the beam main body 8, so that the bending section 1 can be prevented from damaging the bottom surface of the precast beam and damaging the beam main body 8 when being stacked; and roof beam main part 8 has the bigger contact surface relatively, avoids the plate body to pile up through bending segment 1 and makes difficult alignment after bending segment 1, and prevents that the precast beam that the upper strata piles up from producing the risk of empting.

In order to enhance the strength of the wing plate 5 and prevent the wing plate 5 from being broken due to accidental collision in the transportation, storage or construction process, the auxiliary rib 6 poured in the wing plate 5 is further included in the embodiment.

Specifically, the auxiliary beads 6 include lateral auxiliary beads 9 oriented in line with the lateral beads 2, the outer ends of the lateral auxiliary beads 9 are located in the wing plates 5, and the inner ends of the lateral auxiliary beads 9 are located in the beam main body 8. The transverse auxiliary ribs 9 arranged in this way can prevent the wing plate 5 from being accidentally stumbled when a person treads or lifts and falls so as to be broken from the root.

The auxiliary ribs 6 also comprise longitudinal auxiliary ribs 10, and the orientation of the longitudinal auxiliary ribs 10 is consistent with that of the longitudinal ribs 7. The overall strength of the wing panel 5 can be further enhanced due to the staggered orientation of the longitudinal ribs 10 and the transverse ribs 9.

And specifically to this embodiment, only a single longitudinal auxiliary rib 10 and a plurality of transverse auxiliary ribs 9 are arranged in each wing plate 5, and the longitudinal auxiliary rib 10 is fixedly connected to the outer side end of the transverse auxiliary rib 9 and is close to the overhanging edge of the wing plate 5. Since the increased number of reinforcing bars can enhance the structural strength, but the use of the reinforcing bars is excessive, which results in an increase in production costs, the wing panel 5 is a part having only a small overhanging structure, and does not need to have an excessively high strength. Therefore, in order to avoid the most likely root fracture problem, the transverse auxiliary ribs 9 can be provided with a plurality of transverse auxiliary ribs, the longitudinal auxiliary ribs 10 are only provided with one transverse auxiliary rib, and in order to enable the longitudinal auxiliary ribs 10 to play the maximum effect, the longitudinal auxiliary ribs 10 are made to be as close to the overhanging edges of the wing plate 5 as possible, so that the overhanging edges of the wing plate 5 are prevented from being accidentally knocked and crushed. And indulge and assist muscle 10 and every horizontal outer end of assisting muscle 9 and link firmly, then can make the impact to the limit through indulging on assisting muscle 10 is dispersed more horizontal assisting muscle 9 when unexpected collision takes place, reduced unexpected harm's degree, prevent that limit is broken.

Example 2

As shown in fig. 4 and 5, the present embodiment is substantially the same as the previous embodiment except that: the same welded steel plate 14 is welded at the top end of every four prefabricated plate steel bars 13 which can form rectangular distribution. The arrangement is that the precast beam is easy to have certain deviation with the design size in the process of placing and installing, the position of the prefabricated plate reinforcing bars 13 of the previous embodiment is fixed, sometimes not in good agreement with the position of the predetermined fastening member 16, therefore, after the welded steel plate 14 is additionally arranged at the top end of the precast slab steel bar 13, on one hand, the problems of easy dislocation, difficult effective attachment and difficult welding of the bottom of the original fastener 16 and the rod-shaped precast slab steel bar 13 are avoided through a surface-to-surface welding mode, on the other hand, the welding between the fastener 16 and the welded steel plate 14 is not only convenient and has guaranteed quality, and compared with the original situation that workers need to bend over the ground to weld the bottom of the fastener 16 and the rod-shaped precast slab steel bar 13, the welding quality of the welded steel plate 14 welded in advance can be ensured to be higher, so that the overall quality of the bridge is improved.

Example 3

As shown in fig. 6, the present embodiment is substantially the same as the previous embodiment, except that: every four prefabricated plate reinforcing bars 13 forming rectangular distribution are two-two to be a set of, and the welding of the top of the prefabricated plate reinforcing bar 13 of the same set has same root welded billet 15, and two sets of welded billet 15 are parallel. This is because the welded steel plate 14 having a plate shape has a large overall weight and uses a large amount of material although it is easy to weld, and the welded steel bar 15 of the present embodiment can solve the problem of misalignment between the fastening member 16 and the reinforcing bar 13 of the prefabricated panel at a predetermined position, and has a small amount of material and a low overall weight, which is advantageous for saving resources and reducing manufacturing costs.

In addition, the technical scheme of the application has already carried out the pilot plant test at present, namely the small-scale experiment before the large-scale mass production of the product; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been set forth.

Claims

1. The utility model provides a seamless steel bridge face structure of road bridge which characterized in that: the prefabricated beam comprises more than two prefabricated beams which are arranged side by side, each prefabricated beam comprises a beam main body (8) and wing plates (5), a net rack (12) and prefabricated plate steel bars (13) welded with the net rack (12) are poured in the beam main body (8), the top ends of the prefabricated plate steel bars (13) are not lower than the top surface of the beam main body (8), the net rack (12) comprises longitudinal bars (7) and transverse bars (2), the beam main body (8) is provided with a beam bottom surface (11) and two beam side surfaces (4), the two ends of each transverse bar (2) extend out of the beam side surfaces (4) on the corresponding side, the tail ends of the two ends of the transverse rib (2) are provided with bending sections (1) which are bent upwards, the two beam side faces (4) are fixedly connected with wing plates (5), the bottom surfaces of the wing plates (5) are flush with the beam bottom faces (11), the top surfaces of the wing plates (5) are located below the transverse rib (2), and the overhanging edges of the wing plates (5) are observed from the overlooking direction and located on the outer sides of the bending sections (1).

2. The road and bridge seamless steel deck structure of claim 1, wherein: the top end of the bending section (1) is not higher than the top end of the beam main body (8).

3. The road and bridge seamless steel deck structure of claim 1, wherein: also comprises an auxiliary rib (6) poured in the wing plate (5).

4. The road and bridge seamless steel deck structure of claim 3, wherein: the auxiliary ribs (6) comprise transverse auxiliary ribs (9) with the same orientation as the transverse ribs (2), the outer side ends of the transverse auxiliary ribs (9) are positioned in the wing plates (5), and the inner side ends of the transverse auxiliary ribs (9) are positioned in the beam main body (8).

5. The road and bridge seamless steel deck structure of claim 4, wherein: the auxiliary ribs (6) also comprise longitudinal auxiliary ribs (10), and the orientation of the longitudinal auxiliary ribs (10) is consistent with that of the longitudinal ribs (7).

6. The road and bridge seamless steel deck structure of claim 5, wherein: each wing plate (5) is internally provided with a single longitudinal auxiliary rib (10) and a plurality of transverse auxiliary ribs (9), and the longitudinal auxiliary rib (10) is fixedly connected to the outer side end of each transverse auxiliary rib (9) and is close to the overhanging edge of the wing plate (5).

7. The road and bridge seamless steel deck structure of claim 1, wherein: the beam is characterized by further comprising a steel bar truss (3) which is fixedly connected to the net rack (12) and poured in the beam main body (8), and the steel bar truss (3) is placed along the direction of the longitudinal bars (7).

8. The road and bridge seamless steel deck structure of claim 1, wherein: the number of the precast slab steel bars (13) is more than four, and the same welding steel plate (14) is welded at the top end of every four precast slab steel bars (13) which are distributed in a rectangular shape.

9. The road and bridge seamless steel deck structure of claim 1, wherein: the quantity of prefabricated plate reinforcing bar (13) is more than four, and every four prefabricated plate reinforcing bars (13) that form the rectangle and distribute are two liang for a set of, and the welding of the top of the prefabricated plate reinforcing bar of same group (13) has same root welding billet (15), and two sets of welding billet (15) are parallel.