CN214033323U - Assembled composite structure bridge - Google Patents
Assembled composite structure bridge Download PDFInfo
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- CN214033323U CN214033323U CN202022525160.1U CN202022525160U CN214033323U CN 214033323 U CN214033323 U CN 214033323U CN 202022525160 U CN202022525160 U CN 202022525160U CN 214033323 U CN214033323 U CN 214033323U
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Abstract
The utility model discloses an assembled composite structure bridge, which comprises a main steel beam, a perforated steel plate connecting assembly, a prefabricated bridge deck, a rear connecting steel bar and post-cast concrete, wherein the perforated steel plate connecting assembly is arranged on the upper surface of the upper flange of the main steel beam; the prefabricated bridge deck is provided with a notch, two opposite side walls of the notch are respectively provided with an extended steel bar, the prefabricated bridge deck is supported on the upper surface of the upper flange, and the perforated steel plate connecting assembly is positioned in the notch; the rear connecting steel bars are positioned in the notches, connected with the perforated steel plate connecting assembly and connected with the extending steel bars on the two side walls opposite to the notches; and after the post-cast concrete is installed on the post-connecting steel bars, pouring the post-cast concrete in the notch. The utility model discloses a bridge atress performance is good, construction convenience and with low costs.
Description
Technical Field
The utility model belongs to the technical field of the road and bridge technique and specifically relates to an assembled integrated configuration bridge is related to.
Background
The combined beam is a structure which enables steel and concrete to work together as a whole by arranging shear connectors (studs, channel steel, perforated steel plates and the like) between the steel beam and the concrete flange plate to resist the lifting and relative sliding of the steel beam and the concrete flange plate at an interface. In order to facilitate field construction and improve the construction precision of the structure, the demand of adopting the precast concrete deck slab to assemble and construct the combined bridge is higher and higher. The method comprises the steps of prefabricating concrete precast bridge deck boards in sections in a precast member factory, then installing the precast bridge deck boards on steel girders, and finally pouring joints between the precast bridge deck boards to enable the precast bridge deck boards and the steel girders to be combined to bear force together (as shown in figures 6 and 7).
The prefabricated bridge deck can be divided into a transverse block prefabricated bridge deck (as shown in fig. 6) and a full-width unit prefabricated bridge deck (as shown in fig. 7) according to whether the prefabricated bridge deck is divided into blocks in the transverse direction or not. Full-width unit precast deck panels can solve the support problem of cantilever slab sections, but the greatest weakness is that there are difficulties in the connection between full-width unit precast deck panels and steel girders. The connectors need to be arranged centrally in clusters in the area of the concrete prefabricated panel attachment slots. Although the perforated steel plate connecting piece has good stress performance, the problem of steel bar conflict and stress is difficult to solve simultaneously in the assembly notch due to the complicated arrangement of the steel bars, so that the existing perforated steel plate connecting piece is difficult to directly realize prefabricated assembly due to the fact that the steel bars must pass through the round holes (as shown in fig. 8).
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an assembled integrated configuration bridge, the atress performance is good, construction convenience and with low costs.
According to the utility model discloses assembled integrated configuration bridge, include:
a main steel beam having an upper flange;
a perforated steel plate connection assembly disposed on an upper surface of the upper flange;
the prefabricated bridge deck is provided with a notch, two opposite side walls of the notch are respectively provided with an extended steel bar, the prefabricated bridge deck is supported on the upper surface of the upper flange, and the perforated steel plate connecting assembly is positioned in the notch;
the rear connecting steel bars are positioned in the notches and connected with the perforated steel plate connecting assembly and the extending steel bars on the two side walls opposite to the notches;
and post-cast concrete, wherein the post-cast concrete is poured in the notch after the post-connecting steel bars are installed.
According to the utility model discloses during the assembly construction, arrange trompil steel sheet coupling assembling on the upper surface of the top flange of main girder steel, lay prefabricated decking on the upper surface of the top flange of main girder steel and make trompil steel sheet coupling assembling be located the notch of prefabricated decking, install rearmounted connecting reinforcement in the notch, make rearmounted connecting reinforcement and trompil steel sheet coupling assembling and stretch out the reinforcing bar and link to each other, finally, pour the post-cast concrete in the notch, therefore, the utility model discloses the assembly composite structure bridge of embodiment is convenient for construction, and is with low costs; because rearmounted joint reinforcement links to each other with trompil steel sheet coupling assembling and stretch out the reinforcing bar, makes the utility model discloses assembled integrated configuration bridge atress performance is good.
In some embodiments, the perforated steel plate connecting assembly comprises a plurality of perforated steel plates which are vertically arranged and are arranged at intervals in the transverse direction, and a plurality of openings which are arranged at intervals in the longitudinal direction and open grooves which are correspondingly communicated with the plurality of openings are respectively arranged on the plurality of perforated steel plates; a plurality of the extending steel bars extending in the transverse direction are respectively arranged on two opposite side walls of the notch in the transverse direction; the rear connecting steel bar comprises a plurality of annular steel bars or a plurality of transverse steel bars, the plurality of annular steel bars are vertically arranged and are arranged at intervals in the longitudinal direction, the lower ends of the plurality of annular steel bars respectively penetrate through the slots of the plurality of perforated steel plates in a one-to-one correspondence manner to be positioned in the holes, the two ends of the plurality of annular steel bars in the transverse direction are respectively and correspondingly connected with the plurality of protruding steel bars on the two opposite side walls of the slots in the transverse direction, or one part of the plurality of transverse steel bars respectively penetrate through the slots of the plurality of perforated steel plates in a one-to-one correspondence manner to be positioned in the holes, the two ends of one part of the plurality of transverse steel bars are connected with the corresponding protruding steel bars, and the other part of the plurality of transverse steel bars is positioned above the perforated steel plates, and two ends of the other part of the transverse reinforcing steel bars in the plurality of transverse reinforcing steel bars are connected with the corresponding extending reinforcing steel bars.
Further, the rear connecting reinforcement further includes a plurality of longitudinal reinforcements extending in the longitudinal direction and arranged at intervals in the transverse direction.
In some embodiments, the connection between the rear attachment bar and the protruding bar is a weld or lap joint.
In some embodiments, the notch includes an upper notch and a lower notch, a transverse diameter of the lower notch is smaller than a transverse diameter of the upper notch, the lower notch is located at a central portion of the upper notch in the transverse direction, the lower notch is communicated with the upper notch in the up-down direction, and the two opposite side walls of the upper notch in the transverse direction are respectively provided with the protruding reinforcing steel bars; the upper end of a plurality of the apertured steel plates in the apertured steel plate connecting assembly passes through the lower slot and extends into the upper slot.
In some embodiments, the protruding rebar is a U-shaped rebar with a closed end of the U-shaped rebar positioned in the notch.
In some embodiments, the protruding rebars are straight rebars.
In some embodiments, a slab bottom transverse rib, a slab bottom longitudinal rib and a slab top longitudinal rib are arranged in the prefabricated bridge deck at positions close to the notches.
In some embodiments, the post-cast concrete is cast in place with low shrinkage high fluidity concrete.
In some embodiments, the prefabricated bridge deck is a full-width unit prefabricated deck.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of an assembled composite structure bridge according to an embodiment of the present invention, wherein post-cast concrete is not shown.
Fig. 2 is a schematic view of the prefabricated bridge deck of the fabricated composite structural bridge according to an embodiment of the present invention supported on the main steel girder.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a partial cross-sectional view of an assembled composite structural bridge according to an embodiment of the present invention.
Fig. 5 is a schematic view of an assembled composite structural bridge according to another embodiment of the present invention, wherein the post-cast concrete is not shown.
Fig. 6 is a schematic view of a prior art transverse block prefabricated bridge deck.
Fig. 7 is a schematic view of a prior art full width unit prefabricated bridge deck.
Figure 8 is a schematic view of a prior art apertured steel panel connection.
Reference numerals:
assembled composite structure bridge 1000
Perforated steel plate connecting assembly 2, perforated steel plate 21, perforated 211 and slotted 212
Prefabricated bridge deck 3 notch 31 upper notch 311 lower notch 312
32 bottom transverse ribs 33 and 34 bottom longitudinal ribs 35 extending out of the reinforcing steel bars
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The fabricated composite structural bridge 1000 according to the embodiment of the present invention is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, according to the utility model discloses an assembled composite structure bridge 1000, including main girder 1, trompil steel sheet coupling assembling 2, prefabricated decking 3, rearmounted connecting reinforcement 4 and post-cast concrete (not shown in the figure). Wherein, the main steel beam 1 is provided with an upper flange 11; the perforated steel plate connecting assembly 2 is arranged on the upper surface of the upper flange 11; the prefabricated bridge deck 3 is provided with a notch 31, two opposite side walls of the notch 31 are respectively provided with an extended steel bar 32, the prefabricated bridge deck 3 is supported on the upper surface of the upper flange 11, and the perforated steel plate connecting assembly 2 is positioned in the notch 31; the rear connecting steel bar 4 is positioned in the notch 31, the rear connecting steel bar 4 is connected with the perforated steel plate connecting assembly 2, and the rear connecting steel bar 4 is connected with the extending steel bars 32 on two side walls opposite to the notch 31; the post-cast concrete is poured into the notch 31 after the post-connecting reinforcing steel bars 4 are installed.
According to the assembled composite structure bridge 1000 of the embodiment of the utility model, during the assembly construction, arrange trompil steel sheet coupling assembling 2 on the upper surface of the upper flange 11 of main girder 1, lay prefabricated decking 3 and make trompil steel sheet coupling assembling 2 locate in notch 31 of prefabricated decking 3 on the upper surface of the upper flange 11 of main girder 1, install rear connecting reinforcement 4 in notch 31, make rear connecting reinforcement 4 link to each other with trompil steel sheet coupling assembling 2 and stretch out the reinforcing bar 32, finally, pour the post-cast concrete in notch 31, therefore, the assembled composite structure bridge 1000 of the embodiment of the utility model is convenient for construction, and is low in cost; because rearmounted splice bar 4 links to each other with splice bar and trompil steel sheet coupling assembling 2 and stretch out reinforcing bar 32, makes the utility model discloses assembled integrated configuration bridge 1000 atress performance is good.
In some embodiments, as shown in fig. 1 to 3 and 5, the perforated steel plate connecting assembly 2 includes a plurality of perforated steel plates 21, the plurality of perforated steel plates 21 are vertically arranged and arranged at intervals in a transverse direction, and the plurality of perforated steel plates 21 are respectively provided with a plurality of openings 211 arranged at intervals in a longitudinal direction and slots 212 correspondingly communicated with the plurality of openings 211; a plurality of protruding reinforcing bars 32 extending in the transverse direction are respectively provided on opposite side walls of the notch 31 in the transverse direction; the rear connection bar 4 includes a plurality of ring-shaped bars 41 (shown in fig. 1 to 3) or a plurality of transverse bars 43 (shown in fig. 5), wherein the plurality of ring-shaped bars 41 are vertically arranged and spaced apart in the longitudinal direction, lower ends of the plurality of ring-shaped bars 41 are respectively penetrated through the slots 212 of the plurality of perforated steel plates 21 to be positioned in the perforated holes 211 in one-to-one correspondence, both ends of the plurality of ring-shaped bars 41 are respectively connected to the plurality of protruding bars 32 on the opposite side walls of the notch 31 in the transverse direction in one-to-one correspondence, or a portion of the plurality of transverse bars 43 is respectively penetrated through the slots 212 of the plurality of perforated steel plates 21 to be positioned in the perforated holes 211 in one-to-one correspondence, both ends of a portion of the plurality of transverse bars 43 are connected to the corresponding protruding bars 32, another portion of the plurality of transverse bars 43 is positioned above the perforated steel plates 21, both ends of another part of the plurality of transverse reinforcing bars 43 are connected to the corresponding protruding reinforcing bars 32. From this, assembled composite structure bridge 1000 construction convenience, with low costs and the atress performance is good.
Further, as shown in fig. 1 and 5, the rear connection bar 4 further includes a plurality of longitudinal bars 42, and the plurality of longitudinal bars 42 extend in the longitudinal direction and are arranged at intervals in the transverse direction. Thereby, the force-bearing performance of the fabricated composite structural bridge 1000 is further improved.
In some embodiments, the connection between the rear attachment bar 4 and the extension bar 32 is a weld or lap joint. That is to say, the connection between the rear connecting reinforcing steel bar 4 and the extending reinforcing steel bar 32 can adopt welding, the force transmission performance is good, but the construction convenience and the force transmission reliability are comprehensively considered, and the connection between the rear connecting reinforcing steel bar 4 and the extending reinforcing steel bar 32 can also adopt lap joint.
In some embodiments, as shown in fig. 1 and 4, the notch 31 includes an upper notch 311 and a lower notch 312, a transverse diameter of the lower notch 312 is smaller than a transverse diameter of the upper notch 311, the lower notch 312 is located at a central portion of the upper notch 311 in the transverse direction, the lower notch 312 communicates with the upper notch 311 in the up-down direction, and two opposite side walls of the upper notch 311 in the transverse direction are respectively provided with the protruding reinforcing bars 32; the upper ends of the plurality of apertured steel plates 21 in the apertured steel plate attachment assembly 2 pass through the lower slots 312 and extend into the upper slots 311. From this, the fabricated composite structure bridge 1000 is convenient to construct.
In some embodiments, as shown in fig. 1-3, the protruding rebar 32 is a U-shaped rebar with the closed end of the U-shaped rebar positioned in the notch 31. It will be appreciated that the projecting rebars 32 may be selected from U-shaped rebars according to the actual requirements.
In some embodiments, as shown in fig. 5, the protruding rebars 32 are straight rebars. It will be appreciated that the projecting rebars 32 may be selected from straight rebars according to the actual needs.
In some embodiments, as shown in fig. 4, the prefabricated bridge deck 3 is provided with a slab bottom transverse rib 33, a slab bottom longitudinal rib 34 and a slab top longitudinal rib 35 at positions close to the notches 31. Thereby, the concrete of the prefabricated bridge deck 3 near the notch 31 can be prevented from being damaged during transportation.
In some embodiments, the post-cast concrete is cast in situ using low-shrinkage high-fluidity concrete, and the strength of the cast-in-situ post-cast concrete is generally higher than that of the prefabricated bridge deck 3.
In some embodiments, as shown in fig. 1 and 5, the prefabricated bridge deck 3 is a full-width unit prefabricated deck.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An assembled composite structural bridge, comprising:
a main steel beam having an upper flange;
a perforated steel plate connection assembly disposed on an upper surface of the upper flange;
the prefabricated bridge deck is provided with a notch, two opposite side walls of the notch are respectively provided with an extended steel bar, the prefabricated bridge deck is supported on the upper surface of the upper flange, and the perforated steel plate connecting assembly is positioned in the notch;
the rear connecting steel bars are positioned in the notches and connected with the perforated steel plate connecting assembly and the extending steel bars on the two side walls opposite to the notches;
and post-cast concrete, wherein the post-cast concrete is poured in the notch after the post-connecting steel bars are installed.
2. The fabricated composite structural bridge of claim 1, wherein the perforated steel plate connecting assembly comprises a plurality of perforated steel plates, the plurality of perforated steel plates are vertically arranged and are arranged at intervals in the transverse direction, and a plurality of openings arranged at intervals in the longitudinal direction and slots correspondingly communicated with the plurality of openings are respectively arranged on the plurality of perforated steel plates; a plurality of the extending steel bars extending in the transverse direction are respectively arranged on two opposite side walls of the notch in the transverse direction; the rear connecting steel bar comprises a plurality of annular steel bars or a plurality of transverse steel bars, the plurality of annular steel bars are vertically arranged and are arranged at intervals in the longitudinal direction, the lower ends of the plurality of annular steel bars respectively penetrate through the slots of the plurality of perforated steel plates in a one-to-one correspondence manner to be positioned in the holes, the two ends of the plurality of annular steel bars in the transverse direction are respectively and correspondingly connected with the plurality of protruding steel bars on the two opposite side walls of the slots in the transverse direction, or one part of the plurality of transverse steel bars respectively penetrate through the slots of the plurality of perforated steel plates in a one-to-one correspondence manner to be positioned in the holes, the two ends of one part of the plurality of transverse steel bars are connected with the corresponding protruding steel bars, and the other part of the plurality of transverse steel bars is positioned above the perforated steel plates, and two ends of the other part of the transverse reinforcing steel bars in the plurality of transverse reinforcing steel bars are connected with the corresponding extending reinforcing steel bars.
3. The fabricated composite structural bridge of claim 2, wherein the rear connecting rebars further comprise a plurality of longitudinal rebars extending in a longitudinal direction and arranged at intervals in a transverse direction.
4. The fabricated composite structural bridge of claim 1, wherein the connection between the post-connecting rebars and the protruding rebars is a weld or lap joint.
5. The fabricated composite structural bridge of claim 1, wherein the notch includes an upper notch and a lower notch, a transverse diameter of the lower notch is smaller than a transverse diameter of the upper notch, the lower notch is located at a central portion of the upper notch in the transverse direction, the lower notch is communicated with the upper notch in the up-down direction, and the protruding reinforcing bars are respectively disposed on two opposite side walls of the upper notch in the transverse direction; the upper end of a plurality of the apertured steel plates in the apertured steel plate connecting assembly passes through the lower slot and extends into the upper slot.
6. The fabricated composite structural bridge of claim 1, wherein the protruding rebars are U-shaped rebars, the closed ends of the U-shaped rebars being located in the notches.
7. The fabricated composite structural bridge of claim 1, wherein the protruding rebars are straight rebars.
8. The fabricated composite structural bridge of claim 1, wherein slab-bottom transverse ribs, slab-bottom longitudinal ribs and slab-top longitudinal ribs are provided in the prefabricated bridge deck at locations adjacent to the notches.
9. The fabricated composite structural bridge of claim 1, wherein the post-cast concrete is cast in place with low-shrinkage high-fluidity concrete.
10. The fabricated composite structural bridge of claim 1, wherein the prefabricated bridge deck is a full width unit prefabricated deck.
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| CN202022525160.1U CN214033323U (en) | 2020-11-04 | 2020-11-04 | Assembled composite structure bridge |
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| CN202022525160.1U CN214033323U (en) | 2020-11-04 | 2020-11-04 | Assembled composite structure bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622485A (en) * | 2022-03-08 | 2022-06-14 | 湖南大学 | Pier top cast-in-place joint structure adopting embedded steel plate strips and construction method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622485A (en) * | 2022-03-08 | 2022-06-14 | 湖南大学 | Pier top cast-in-place joint structure adopting embedded steel plate strips and construction method thereof |
| CN114622485B (en) * | 2022-03-08 | 2023-09-08 | 湖南大学 | Pier top cast-in-situ joint structure adopting embedded steel strip and construction method thereof |
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