CN212895861U - Bridge upper portion assembled integrated configuration - Google Patents

Abstract

The utility model relates to a bridge structures field discloses a bridge upper portion assembled integrated configuration, it includes between steel box girder and the decking, connection structure between the adjacent decking, and the sealed measure of steel box girder-decking at junction point department, the bellows grout of decking and anticollision wall combines the connection form, compare as bridge superstructure with adopting rectangle steel box girder, this bridge deck system greatly reduced bridge superstructure cost and heavy equipment drop into, improve on-the-spot efficiency of construction, reduce the influence to the traffic environment on-the-spot, realize green energy-conserving construction theory.

Description

Bridge upper portion assembled integrated configuration

Technical Field

The utility model relates to a municipal administration bridge field especially relates to bridge upper portion assembled integrated configuration.

Background

The existing urban elevated or bridge engineering mostly adopts the traditional reinforced concrete structure, which easily causes the problems of web and bottom plate cracking, etc., and has the advantages of single structure form, short construction period, large influence on traffic, in addition, the integral steel box girder has huge steel consumption and high cost, and because of the dead weight, the hoisting needs to adopt a large crane, resulting in expensive equipment cost.

The application time of the assembly type technology in the bridge is short, but the development is very rapid, so far, the assembly type technology adopted in the construction of a large sea-crossing bridge in China is mature, but the application of the assembly type technology in urban municipal bridges is still not much, and the assembly type technology has a remarkable application prospect in the construction of the municipal bridges by adopting the assembly type sections and the method of on-site subsection splicing construction, so that the on-site wet workload can be greatly reduced, the construction period can be shortened, and the adverse effect of construction on urban traffic can be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bridge upper portion assembled integrated configuration and construction process thereof to the problem that the steel volume of using of integral steel box girder is huge among the solution prior art, and the cost is high.

In order to solve the technical problem, the utility model provides a bridge upper portion assembled integrated configuration, it includes beam assembly, decking and crashproof wall, the beam assembly sets up the multiunit, and the multiunit the beam assembly is put up the orbit equidistance along the bridge and is arranged, every group the beam assembly includes: the bridge deck system comprises a plurality of steel box girders and cross girders, wherein the steel box girders are arranged in a straight line at equal intervals, the cross girders are connected between the two steel box girders, the bridge deck is a rectangular plate, two ends of the bridge deck are erected on the cross girders between two groups of beam assemblies, the anti-collision walls are provided with a plurality of groups, each group of anti-collision walls is three and symmetrically connected to the center and two sides of each beam assembly, and the plurality of groups of anti-collision walls are connected end to end along the arrangement direction of the beam assemblies.

In some embodiments of this application, the steel box girder is for being in by steel box girder bottom plate and setting the U-shaped structure that the opening that the steel box girder web of steel box girder bottom plate both sides encloses up, steel box girder web top edge connects steel box girder pterygoid lamina, steel box girder web with steel box girder pterygoid lamina is perpendicular to be connected, the bearing capacity of structure can be increased to steel box girder U font structure.

In some embodiments of the present application, the beam includes a beam floor, a beam web, and a beam wing plate, the beam floor is connected to one end of the beam web, and the other end of the beam web is connected to the beam wing plate.

In some embodiments of the present application, the cross-sectional shapes of the steel box girder and the beam are i-shaped, the i-shaped bearing capacity is better than that of other shapes, and in addition, the bridge deck can be more conveniently placed due to the i-shaped design.

In some embodiments of the application, the web of the steel box girder and the flange of the wing plate of the steel box girder are equidistantly provided with stiffening ribs to strengthen the connection strength of the steel box girder and the cross beam.

In some embodiments of this application, the both sides edge of steel box girder pterygoid lamina reaches the both sides of crossbeam pterygoid lamina are pasted and are had the compressible sealed anticorrosive rubber strip of full length, anticorrosive rubber strip plays sealed effect on the one hand, prevents that the junction from taking place inside corrosion and causing the defect, and on the other hand can play certain cushioning effect.

In some embodiments of the application, the steel box girder and the cross beam are welded by connecting steel plates after being connected, so that the connection reliability of the steel box girder and the cross beam is enhanced.

In some embodiments of this application, decking both ends and lateral wall are connected with a plurality of U shaped steel bars, correspond to agree with the connection through the U shaped steel bar between the decking, the junction leaves the seam between the decking insert vertical reinforcement and horizontal reinforcing bar respectively in the U shaped steel bar of seam department the stability of connecting between the decking has been strengthened to pouring concrete in the seam department, vertical reinforcement and horizontal reinforcing bar also can increase the bearing capacity of pontic, make the decking is difficult for taking place the fracture.

In some embodiments of this application, the anticollision wall includes anticollision wall body, twisted steel and corrugated metal pipe, corrugated metal pipe sets up inside the anticollision wall body, the twisted steel inserts inside the corrugated metal pipe, corrugated metal pipe with the filling has the thick liquids between the twisted steel, the twisted steel with the roof beam subassembly is connected, has made things convenient for the anticollision wall body with the connection of decking.

The utility model provides a bridge upper portion assembled integrated configuration, it includes beam assembly, decking and crashproof wall, the beam assembly sets up the multiunit, and the multiunit the beam assembly is put up the orbit equidistance along the pontic and is arranged, every group the beam assembly includes: the steel box girder is provided with a plurality of and equidistant one-line arrangement, two be connected with the crossbeam between the steel box girder, the decking is rectangular shaped plate, the decking minor face erects two between the steel box girder, the decking long limit erects at two sets of between the beam unit, the anticollision wall sets up the multiunit, every group the anticollision wall has threely, and the symmetry is installed the center and the both sides of beam unit, the multiunit the anticollision wall along the direction of arrangement of beam unit end to end, this bridge floor system has reduced bridge upper portion assembled integrated configuration cost and heavy equipment and has dropped into, improves on-the-spot efficiency of construction, reduces the influence to the traffic environment of scene, realizes green energy-conserving construction theory.

Drawings

FIG. 1 is a sectional view of an assembled composite structure of an upper part of an assembled bridge;

FIG. 2 is a plan view of an assembled composite structure of an upper part of an assembled bridge;

FIG. 3 is a cross-sectional view of the junction of the steel box girder-bridge deck-steel box girder (with cross beam);

FIG. 4 is a cross-sectional view of a beam assembly-deck-beam assembly (without a beam) connection;

FIG. 5 is a cross-sectional view of adjacent deck slab connections (beam assembly-deck slab-beam assembly orientation);

FIG. 6 is a cross-sectional view of the connection of adjacent bridge decks (steel box girder-bridge deck-steel box girder direction);

fig. 7 is a cross-sectional view of a set of beam assemblies at the boundary beams and the connection of the impact wall to the deck slab.

Fig. 8 is a sectional view of the combination connection of the two sets of beam assembly boundary beams and the anti-collision wall and the bridge deck.

Wherein, 1, bridge deck; 2. seaming; 3. a steel box girder; 4. a cross beam; 5. an anti-collision wall; 6. a capping beam; 7. pier studs; 8. a bearing platform; 9. a pile foundation; 10. shear nails; 11. connecting steel plates; 12. A high-strength bolt; 13. u-shaped steel bars; 14. longitudinal reinforcing steel bars; 15. transverse reinforcing steel bars; 16. sealing the anticorrosive rubber strip; 17. a metal bellows; 18. twisted steel bars; 19. angle steel; 20. and (3) a steel plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The assembled bridge upper part assembled combination structure shown in fig. 1 is a cross-sectional view, and comprises a bridge lower part structure comprising a cover beam 6, a pier stud 7, a bearing platform 8 and a pile foundation 9. Pile foundation 9 is built earlier, and pile foundation 9 can set up the multiunit, arranges in proper order, and every pile foundation 9 of group is provided with two, corresponds the connection on pile foundation 9 with cushion cap 8, and pier stud 7 is connected with cushion cap 8, builds respectively capping beam 6 on every pile foundation 9 of group, forms the bridge substructure.

Bridge upper portion deck system structure includes: steel box girder 3, crossbeam 4, decking 1, seam 2 and crashproof wall 5 constitute, and the roof beam subassembly sets up the multiunit, and the multiunit roof beam subassembly builds the orbit equidistance along the bridge and arranges, and every roof beam subassembly of group includes: the steel box girders 3 and the cross girders 4, the steel box girders 3 are arranged in a line at a plurality of intervals, the cross girders 4 are connected between the two steel box girders 3, the bridge deck 1 is a rectangular plate, two ends of the bridge deck 1 are erected on the cross girders 4 between two sets of girder components, a plurality of sets of collision walls 5 are arranged, three sets of collision walls 5 are symmetrically connected to the center and two sides of the girder components, the plurality of sets of collision walls 5 are connected end to end along the arrangement direction of the girder components, wherein the upper structure plane is shown in figure 2, the axial direction of the bridge is defined as the forward bridge direction, the direction perpendicular to the forward bridge direction is the transverse bridge direction, figures 3 and 4 are the concrete structures of the steel box girders 3-bridge deck 1-steel box girders 3 (with the cross girders 4) and the steel box girders 3, the bridge deck 1-girder components (without the cross girders 4) at the connection positions, the bridge decks 1 and the joints 2 respectively, the bridge deck system reduces the investment cost of the upper assembled type combined structure and the heavy equipment, the construction efficiency of the scene is improved, reduce the influence to the traffic environment of scene, realize the construction theory of green energy-conservation.

It should be noted that, the mounting process of the fabricated bridge upper assembled composite structure is as follows:

firstly, a temporary support is erected on the ground, the steel box girder 3 is hoisted along the bridge direction, the joint mode is that the steel box girder is butted from top to bottom and is positioned and installed through a positioning hanging plate welded at the top plate of the steel box girder 3 in advance, and the whole span steel box girder 3 is integrally welded after being hoisted, so that the effective control of the whole welding deformation is realized. And then, connecting the steel box girder 3 and the cross beam 4 in the transverse bridge direction, and hoisting the steel box girder and the cross beam at two sides by using a truck crane or in the middle by using a self-discharging crane. After the installation of the cross beam 4 is completed, the connection steel plates 11 and the high-strength bolts 12 are used for fastening connection. The cross sections of the steel box girder 3 and the cross beam 4 are I-shaped, stiffening ribs are arranged on the web plate and the flange at certain intervals, and the web plate and the flange are welded by a connecting steel plate 11 after being connected.

Then, the deck plate 1 is laid, and the side surface of the deck plate 1 is roughened when it is manufactured. FIG. 5 shows a cross-sectional view of the connection between adjacent concrete deck plates. Before hoisting, the two side edges of the upper flange plate of the steel box girder 3 and the transverse bridge direction of the upper flange plate of the crossbeam 4 are adhered with a full-length compressible sealing anticorrosive rubber strip 16. In the process of hoisting and placing the bridge deck slab 1, the sealing anticorrosive rubber strips 16 are completely compacted due to the self-weight of the bridge deck slab 1. And finally, respectively inserting longitudinal steel bars 14 and transverse steel bars 15 into the cast-in-place concrete joints 2 along the bridge direction and the transverse bridge direction, and pouring concrete to finish the wet connection operation.

Fig. 6 shows a cross-sectional view of the connection of the side beams and the middle impact wall 5 to the concrete deck 1. In the factory stage of the bridge deck 1 and the crash wall 5, a twisted steel bar 18 and a metal corrugated pipe 17 are reserved respectively.

When the bridge is installed, epoxy resin adhesive is evenly coated on the tongue-and-groove contact surface of the bridge deck 1 and the anti-collision wall 5. And after the alignment and hoisting, grouting materials are poured into the metal corrugated pipe 17, and meanwhile, the connecting parts of the angle steel 19 and the steel plate 20 are welded, so that the connection between the anti-collision wall 5 and the bridge deck 1 is completed.

Preferably, the steel box girder 3 is a U-shaped structure with an upward opening, which is defined by a bottom plate of the steel box girder 3 and webs of the steel box girder 3 arranged at two sides of the bottom plate of the steel box girder 3, and the upper edges of the webs of the steel box girder 3 at two sides are bent inwards and extend to form a wing plate of the steel box girder 3;

the crossbeam 4 includes 4 bottom plates of crossbeam, 4 webs of crossbeam and 4 pterygoid lamina of crossbeam, and 4 bottom plates of crossbeam are connected in the one end of 4 webs of crossbeam, and 4 pterygoid lamina of crossbeam are connected to the other end of 4 webs of crossbeam.

It should be noted that the bearing capacity of the structure can be increased by the U-shaped structure of the steel box girder 3, the section forms of the steel box girder 3 and the cross beam 4 are I-shaped, the I-shaped bearing capacity is superior to that of other shapes, and in addition, the bridge deck 1 can be placed more conveniently by the I-shaped design.

Preferably, the flanges of the web plate of the steel box girder 3 and the flanges of the flange plate of the steel box girder 3 are equidistantly provided with stiffening ribs.

It should be noted that the connection strength between the steel box girder 3 and the cross girder 4 is reinforced.

Preferably, the two side edges of the wing plates of the steel box girder 3 and the two sides of the wing plates of the cross girder 4 are adhered with full-length compressible sealing anticorrosive rubber strips 16.

It should be noted that, because the dead weight effect of decking 1, sealed anticorrosive rubber strip 16 is pressed closely completely, and anticorrosive rubber strip plays sealed effect on the one hand, prevents that the infiltration from appearing in the gap between decking 1 and steel box girder 3, prevents simultaneously that the junction from taking place inside and corroding and causing the defect, and on the other hand can play certain cushioning effect.

Preferably, the steel box girder 3 and the cross girder 4 are welded by the connecting steel plate 11 after being connected, so that the connection reliability of the steel box girder 3 and the cross girder 4 is enhanced.

Preferably, 1 both ends of decking and lateral wall are connected with a plurality of U-shaped reinforcing bars 13, connect between the decking 1 and correspond to agree with the connection through the U-shaped reinforcing bar, seam 2 is left in the junction between the decking 1 longitudinal reinforcement 14 and horizontal reinforcing bar 15 are inserted respectively in the U-shaped reinforcing bar 13 of seam 2 department, and the pouring concrete in seam 2 department.

It should be noted that, the bridge deck plates 1 are connected by the U-shaped steel bars 13 in a staggered fit manner, and the longitudinal steel bars 14 and the transverse steel bars 15 are inserted into the U-shaped steel bars, so that the connection stability between the bridge deck plates 1 is enhanced, and the longitudinal steel bars 14 and the transverse steel bars 15 can also increase the bearing capacity of the bridge body, so that the joints of the bridge deck plates 1 are not easy to break.

As shown in fig. 7-8, preferably, the impact wall 5 includes an impact wall 5 body, a rebar 18 and a metal corrugated pipe 17, the metal corrugated pipe 17 is disposed inside the impact wall 5 body, the rebar 18 is inserted inside the metal corrugated pipe 17, grout is filled between the metal corrugated pipe 17 and the rebar 18, and the rebar 18 is connected with the beam assembly, so that the connection between the impact wall 5 body and the bridge deck 1 is facilitated.

Preferably, the bottom of the body of the anti-collision wall 5 is connected with the bridge deck 1, epoxy resin adhesive is uniformly coated on the contact surface of the bridge deck 1 and the body of the anti-collision wall 5, and the connecting seam 2 between the bridge deck 1 and the body of the anti-collision wall 5 is filled.

It should be noted that the epoxy resin adhesive makes the connection between the impact wall 5 and the bridge deck 1 more firm, and simultaneously, the failure of the bridge deck 1 and the impact wall 5 caused by the cyclic stress generated by the vibration is avoided.

Preferably, the bottom of the body of the anti-collision wall 5 is provided with angle steel 19, the bridge deck plate 1 is provided with a steel plate 20, the angle steel 19 is connected with the steel plate 20 in a welding manner, and the reliability of connection between the body of the anti-collision wall 5 and the bridge deck plate 1 is enhanced.

Based on a bridge upper portion assembled integrated configuration, the utility model also discloses a bridge upper portion assembled integrated configuration's construction process, construction process includes:

s1: a temporary support is erected on the ground to hoist the steel box girder 3, the joint mode is that the steel box girder 3 is positioned and installed through a positioning hanging plate welded in advance at the top plate of the steel box girder 3 from the top to the bottom, and the whole span steel box girder 3 is integrally welded after the hoisting is finished;

s2: connecting the steel box girder 3 with the cross girder 4, and fastening and connecting the cross girder 4 by using a connecting steel plate 11 and a high-strength bolt 12 after the installation of the cross girder 4 is finished;

s3: paving the bridge deck 1, chiseling the side surface of the bridge deck 1 when manufacturing the bridge deck 1, sticking full-length sealing anticorrosive rubber strips 16 on the edges of two sides of a wing plate of a steel box girder 3 and two sides of a wing of a cross beam 4, finally, respectively inserting longitudinal steel bars 14 and transverse steel bars 15 into joints 2 between the bridge deck 1, and pouring concrete at the joints 2 to finish wet connection operation;

s4: epoxy resin adhesive is evenly smeared on the contact surface of the bridge deck slab 1 and the anti-collision wall 5, grouting material is poured into the metal corrugated pipe 17 after alignment and hoisting, the twisted steel bar 18 and the beam assembly are welded together, meanwhile, the connecting part of the angle steel 19 and the steel plate 20 is welded, and the connection of the anti-collision wall 5 and the bridge deck slab 1 is completed.

To sum up, the embodiment of the utility model provides a bridge upper portion assembled integrated configuration has introduced the measures of connecting each component in the whole superstructure of bridge in detail, including the connection structure between steel box girder and decking, between the adjacent decking, and the steel box girder-decking is at the sealed measure of junction point, the corrugated pipe grout of decking and anticollision wall combines the connection form;

firstly, the U-shaped steel box girder structure is adopted, so that the steel consumption of the structure is greatly reduced, the material cost is reduced, the self weight of the structure is reduced, hoisting equipment of the steel box girder can be replaced by hoisting equipment with smaller hoisting weight, the mechanical equipment cost is reduced, the method is suitable for the assembly type construction of municipal bridges, the construction period of site construction is greatly shortened, and the investment of manpower, material resources and the influence on the site environment are reduced; secondly, by reducing the distance between the top plates of the steel box girders, the span of the lower support of the concrete bridge deck is reduced, and the problems that the compressive strength of the common concrete bridge deck is low and the common concrete bridge deck is easy to crack due to large bending moment are solved, so that the bridge deck can adopt common concrete, and the material cost is greatly reduced; in addition, the top plates of the U-shaped steel box girder and the cross beam are used as bottom templates of cast-in-place concrete joints, so that the use of construction templates is reduced; finally, the U-shaped steel box girder and the steel girder adopt the anti-pulling shear nails without shearing resistance, so that the synergistic stress effect of the upper structure of the bridge is increased, and the phenomenon that the bridge deck is easy to crack due to the action of negative bending moment is avoided.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a bridge upper portion assembled integrated configuration, its includes roof beam subassembly, decking and crashproof wall, the roof beam subassembly sets up the multiunit, and the multiunit the roof beam subassembly is put up the orbit equidistance along the bridge and is arranged, every group the roof beam subassembly includes: the steel box girder is provided with a plurality ofly, and a plurality of steel box girders equidistance word arrangement, two be connected with the crossbeam between the steel box girder, the decking both ends are erect two sets of on the crossbeam between the roof beam subassembly, the anticollision wall sets up the multiunit, every group the anticollision wall has threely, every group the anticollision wall is connected center and both sides on the roof beam subassembly, the multiunit the anticollision wall along the array orientation end to end of roof beam subassembly.

2. The assembled composite structure for the upper part of the bridge according to claim 1, wherein the steel box girder is a U-shaped structure, and the steel box girder comprises a steel box girder bottom plate, a steel box girder wing plate and two steel box girder web plates, the two steel box girder web plates are respectively connected to two sides of the steel box girder bottom plate, the upper edge of the steel box girder web plate is connected with the steel box girder wing plate, and the steel box girder web plate is vertically connected with the steel box girder wing plate.

3. The assembled composite structure for the upper part of the bridge as claimed in claim 2, wherein the beam comprises a beam bottom plate, a beam web plate and a beam wing plate, the beam bottom plate is connected to one end of the beam web plate, and the other end of the beam web plate is connected to the beam wing plate.

4. The bridge upper assembled composite structure of claim 1, wherein the steel box girder and the beam have a cross-sectional form of an i-shape.

5. The bridge upper assembled combination structure of claim 2, wherein the flanges of the web and the web of the steel box girder are equidistantly provided with stiffening ribs.

6. The assembled composite structure for the upper part of a bridge as claimed in claim 3, wherein sealing anticorrosive rubber strips are adhered to the two side edges of the steel box girder wing plate and the two sides of the cross girder wing plate.

7. The fabricated composite structure for the upper part of a bridge according to claim 1, wherein a connecting steel plate is welded between the steel box girder and the cross girder.

8. The assembled composite structure for the upper part of the bridge as claimed in claim 1, wherein a plurality of U-shaped steel bars are connected to both ends and the side walls of the bridge deck, the bridge deck is correspondingly engaged with the U-shaped steel bars, a joint is left at the joint between the bridge deck, longitudinal steel bars and transverse steel bars are respectively inserted into the U-shaped steel bars at the joint, and concrete is poured into the joint.

9. The assembled composite structure for the upper part of the bridge according to claim 1, wherein the crash wall comprises a crash wall body, a rebar and a metal corrugated pipe, the metal corrugated pipe is arranged inside the crash wall body, the rebar is inserted inside the metal corrugated pipe, grout is filled between the metal corrugated pipe and the rebar, and the rebar is connected with the beam.

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