CN210288076U - Prefabricated assembled steel truss combined beam bridge - Google Patents
Prefabricated assembled steel truss combined beam bridge Download PDFInfo
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- CN210288076U CN210288076U CN201920813364.XU CN201920813364U CN210288076U CN 210288076 U CN210288076 U CN 210288076U CN 201920813364 U CN201920813364 U CN 201920813364U CN 210288076 U CN210288076 U CN 210288076U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- 238000009417 prefabrication Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
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Abstract
The utility model provides a steel purlin combination beam bridge is assembled in prefabrication, include: prefabricated part and setting are in the concatenation part of prefabricated part below, wherein, prefabricated part includes concrete decking and follows the last chord that concrete decking length direction set up, the last chord sets up concrete decking below, and partly pre-buried in the concrete decking, the concatenation part includes lower chord, web member, lower chord parallel arrangement is in go up the chord below, the web member sets up lower chord with between the last chord, be used for connecting the lower chord with go up the chord. Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model discloses a prefabricated steel purlin combination beam bridge of assembling that the embodiment provided compares with whole roof beam transportation through setting up prefabricated part and on-the-spot concatenation part, and prefabricated part transportation is convenient relatively, and on-the-spot concatenation part construction is simple relatively, and the cycle is short, receives weather effect little.
Description
Technical Field
The utility model relates to a bridge construction technical field particularly, relates to a steel purlin combination bridge is assembled in prefabrication.
Background
The girder bridge is a girder structure which provides a passage for pedestrians and automobiles, directly bears loads of automobiles, pedestrians and the like, and transmits the loads to a lower structure. At present, most of common main beams are cast-in-place or integrally prefabricated and assembled, and the structure form of combining the two is provided. The prefabricated assembly beam and the prefabricated assembly beam have the advantages and the disadvantages, the factory production quality of the prefabricated assembly beam is good, the production efficiency is high, and the transportation and the hoisting are difficult. The work load of the beam formwork erection for in-situ pouring is large, and the pouring work is influenced by weather.
In view of the above-mentioned defects, the present designer is actively making research and innovation to create a prefabricated assembled steel truss composite girder bridge, so that it has more practical value.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a steel purlin combination beam bridge is assembled in prefabrication aims at solving prior art, and the whole prefabricated assembly transportation hoist and mount difficulty of girder, the big and technical problem that the work of pouring receives weather effect of cast-in-place work load.
The utility model provides a steel purlin combination beam bridge is assembled in prefabrication, include: the splicing device comprises a prefabricated part and a splicing part arranged below the prefabricated part;
the prefabricated part comprises a concrete bridge deck and an upper chord arranged along the length direction of the concrete bridge deck, the upper chord is arranged below the concrete bridge deck, and part of the upper chord is embedded in the concrete bridge deck;
the splicing part comprises a lower chord and web members, the lower chord is arranged in parallel below the upper chord, and the web members are arranged between the lower chord and the upper chord and used for connecting the lower chord and the upper chord.
Furthermore, the web members are obliquely arranged, one end of each web member is fixedly connected with the upper side of the lower chord, and the other end of each web member is fixedly connected with the lower side of the upper chord.
Further, the contact part of the concrete bridge deck and the upper chord is thickened.
Furthermore, a first shear connection key is further arranged between the upper chord and the concrete bridge deck and is of a T-shaped structure for improving the structural stability, and the first shear connection key is radially and fixedly connected to the side wall of the upper chord.
Further, the lower chord members are provided with a plurality of cross braces, and a cross brace is arranged between every two adjacent lower chord members to improve the structural stability.
Further, the lengths of the lower chord and the upper chord are both greater than the length of the concrete bridge deck, and the two ends of the lower chord and the upper chord extend to the outer side of the concrete bridge deck.
Furthermore, the prefabricated assembled steel truss composite beam bridge further comprises cast-in-place end concrete plates vertically arranged on two sides, and the parts of the lower chord and the upper chord, which extend out of the concrete bridge deck, are embedded into the cast-in-place end concrete plates.
Furthermore, a second shear connection key is arranged at the contact part of the lower chord and the upper chord with the cast-in-place end concrete slab, and the second shear connection key is of a T-shaped structure.
Further, the diameter of the lower chord is 1.5 times or more the diameter of the web.
Further, the contact part of the cast-in-place end concrete slab, the lower chord and the upper chord is thickened.
Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model discloses a prefabricated steel purlin combination beam bridge of assembling that the embodiment provided compares with whole roof beam transportation through setting up prefabricated part and on-the-spot concatenation part, and prefabricated part transportation is convenient relatively, and on-the-spot concatenation part construction is simple relatively, and the cycle is short, receives weather effect little.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a front view of a composite beam according to an embodiment of the present invention;
fig. 2 is a front view of a prefabricated part provided by an embodiment of the present invention;
fig. 3 is a left side view of a prefabricated part provided by an embodiment of the present invention;
fig. 4 is a cross-sectional view a-a provided by an embodiment of the present invention;
fig. 5 is a cross-sectional view of B-B provided by an embodiment of the present invention;
reference numerals: 1. a prefabricated part; 11. a concrete deck slab; 12. an upper chord; 13. a first shear connector; 2. a splicing section; 21. a lower chord; 22. a web member; 23. a cross brace; 3. a concrete slab at the cast-in-place end; 4. a second shear connector.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 5, it can be known that, the embodiment of the present invention provides a prefabricated assembled steel truss composite girder bridge, including: prefabricated part 1 and the concatenation part 2 of setting in prefabricated part 1 below, prefabricated part 1 includes concrete decking 11 and along the last chord 12 that 11 length direction of concrete decking set up, last chord 12 sets up in concrete decking 11 below, and some pre-buried in concrete decking 11, concatenation part 2 includes lower chord 21, web member 22, lower chord 21 parallel arrangement is in last chord 12 below, web member 22 sets up between lower chord 21 and last chord 12, be used for connecting lower chord 21 and last chord 12. Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model discloses a prefabricated steel purlin combination beam bridge of assembling that the embodiment provided compares with whole prefabricated assembly through setting up prefabricated part and on-the-spot concatenation part, and prefabricated part transportation is convenient relatively, compares with on-the-spot integral erection, and on-the-spot concatenation part construction is simple relatively, and construction cycle is short, receives weather effect little.
In this embodiment, the web member 22 is a hollow steel pipe, the web member 22 is disposed obliquely, one end of the web member 22 is fixedly connected to the upper side of the lower chord 21, and the other end is fixedly connected to the lower side of the upper chord 12.
As a preferred embodiment, the diameter of the lower chord 21 is 1.5 times or more the diameter of the web member 22, ensuring the stability of the connection.
As a preferred embodiment, the concrete bridge deck 11 is thickened at the contact with the upper chord 12 to enhance the stability of the connection.
In this embodiment, a first shear connector 13 is further disposed between the upper chord 12 and the concrete deck 11, the first shear connector 13 is a T-shaped structure, and the first shear connector 13 is radially and fixedly connected to the side wall of the upper chord 12. Above-mentioned setting can not only increase the joint strength of upper chord 12 and concrete decking 11, prevents that upper chord 12 from dropping from concrete decking 11, simultaneously, can also effectively prevent the ascending slip of upper chord 12 in concrete decking 11 length direction.
In this embodiment, the lower chords 21 are arranged in parallel, and a cross brace 23 is arranged between two adjacent lower chords 21 to improve the structural stability.
In this embodiment, the lower chord 21 and the upper chord 12 have equal length, and the length of both the lower chord 21 and the upper chord 12 is greater than the length of the concrete deck 11, and both ends of both the lower chord 21 and the upper chord 12 extend to the outer side of the concrete deck 11.
In this embodiment, the precast assembled steel truss composite beam bridge further includes cast-in-place end concrete slabs 3 vertically arranged on both sides, so as to solve the problem that the lateral stability of the framework formed by the lower chord 21, the web member 22 and the upper chord 12 is not sufficient, the cast-in-place end concrete slabs 3 can effectively prevent the lateral sliding of the lower chord 21, the web member 22 and the upper chord 12, and the parts of the lower chord 21 and the upper chord 12 extending out of the concrete bridge deck 11 are embedded into the cast-in-place end concrete slabs 3, so as to increase the structural stability.
In a preferred embodiment, the contact parts of the lower chord 21 and the upper chord 12 with the cast-in-place end concrete slab 3 are provided with second shear connectors 4, the second shear connectors 4 are of a T-shaped structure, and the second shear connectors 4 are used for increasing the stability among the lower chord 21, the upper chord 12 and the cast-in-place end concrete slab 3.
As a preferred embodiment, the contact part of the cast-in-place end concrete plate 3 with the lower chord 21 and the upper chord 12 is thickened, so that the stability of the connection is increased.
As a preferred embodiment, structural sealant is coated on the contact part of the upper chord 12 and the concrete bridge deck 11 and the contact part of the upper chord 12 and the lower chord 21 and the cast-in-place end concrete slab 3.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a steel purlin combination beam bridge is assembled in prefabrication which characterized in that includes: a prefabricated part (1) and a splicing part (2) arranged below the prefabricated part (1);
the prefabricated part (1) comprises a concrete bridge deck (11) and an upper chord (12) arranged along the length direction of the concrete bridge deck (11), wherein the upper chord (12) is arranged below the concrete bridge deck (11), and part of the upper chord is embedded in the concrete bridge deck (11);
splice part (2) include lower chord (21), web member (22), lower chord (21) parallel arrangement is in last chord (12) below, web member (22) set up lower chord (21) with between last chord (12), be used for connecting lower chord (21) with last chord (12).
2. The prefabricated assembled steel truss composite girder bridge according to claim 1, wherein the web members (22) are obliquely arranged, one end of each web member (22) is fixedly connected with the upper side of the lower chord (21), and the other end of each web member is fixedly connected with the lower side of the upper chord (12).
3. The precast assembled steel truss composite girder bridge according to claim 1, wherein the concrete deck slab (11) is thickened at a contact portion with the upper chord (12).
4. The prefabricated assembled steel truss composite beam bridge as claimed in claim 3, wherein a first shear connector (13) is further arranged between the upper chord (12) and the concrete bridge deck (11), the first shear connector (13) is of a T-shaped structure and used for improving structural stability, and the first shear connector (13) is radially and fixedly connected to the side wall of the upper chord (12).
5. The precast assembled steel truss composite girder bridge as claimed in claim 1, wherein the lower chords (21) are provided in plurality, and a cross brace (23) is provided between two adjacent lower chords (21) for improving structural stability.
6. The bridge of claim 1, wherein the lower chord (21) and the upper chord (12) each have a length greater than that of the concrete deck (11), and both ends of the lower chord (21) and the upper chord (12) extend outside the concrete deck (11).
7. The precast assembled steel truss composite girder bridge as claimed in claim 6, further comprising a cast-in-place end concrete slab (3) vertically disposed at both sides, wherein the lower chord (21) and the upper chord (12) are embedded in the cast-in-place end concrete slab (3) with their portions protruding from the concrete deck (11).
8. The precast assembled steel truss composite beam bridge as claimed in claim 7, wherein the contact part of the lower chord (21) and the upper chord (12) and the cast-in-place end concrete slab (3) is provided with a second shear connection key (4), and the second shear connection key (4) is of a T-shaped structure.
9. The precast assembled steel truss composite girder bridge according to claim 1, wherein the diameter of the lower chord member (21) is 1.5 times or more the diameter of the web member (22).
10. The precast assembled steel truss composite girder bridge according to claim 7, wherein the cast-in-place end concrete slab (3) is thickened at the contact part with the lower chord (21) and the upper chord (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813364.XU CN210288076U (en) | 2019-05-31 | 2019-05-31 | Prefabricated assembled steel truss combined beam bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813364.XU CN210288076U (en) | 2019-05-31 | 2019-05-31 | Prefabricated assembled steel truss combined beam bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210288076U true CN210288076U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920813364.XU Active CN210288076U (en) | 2019-05-31 | 2019-05-31 | Prefabricated assembled steel truss combined beam bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210288076U (en) |
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2019
- 2019-05-31 CN CN201920813364.XU patent/CN210288076U/en active Active
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