CN220413977U - Middle-small span corrugated web I-shaped steel girder bridge - Google Patents
Middle-small span corrugated web I-shaped steel girder bridge Download PDFInfo
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- CN220413977U CN220413977U CN202321814393.0U CN202321814393U CN220413977U CN 220413977 U CN220413977 U CN 220413977U CN 202321814393 U CN202321814393 U CN 202321814393U CN 220413977 U CN220413977 U CN 220413977U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 238000004873 anchoring Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Abstract
The utility model belongs to the technical field of rapid repair construction of bridge upper structures, and particularly relates to a temporary bridge of a medium-small span corrugated web I-shaped steel girder. The utility model provides a medium and small span corrugated web I-steel girder temporary bridge, includes two parallel arrangement's longeron and connects two a plurality of distribution beams on longeron upper portion, a plurality of distribution beams parallel arrangement, and with the longeron becomes 90 contained angles, distribution beam upper portion is equipped with the decking, the decking both sides are equipped with the guardrail along longeron vertically, still are equipped with a plurality of truss type internal connection roof beams between two parallel arrangement's longeron. The corrugated steel plate is adopted to form the I-shaped steel beam section through corrugation, so that the corrugated steel plate has high strength and high bearing capacity, and forms an I-shaped steel beam section with the steel beam top plate and the steel beam bottom plate, has high bearing capacity, high rigidity and strong applicability, and can greatly reduce construction cost; all the component parts can be connected by bolts, and can be assembled rapidly on site.
Description
Technical Field
The utility model belongs to the technical field of rapid repair construction of bridge upper structures, and particularly relates to a temporary bridge of a medium-small span corrugated web I-shaped steel girder.
Background
Along with the high-speed development of China economy, the traffic field is greatly broken through, and a huge highway network system is established at present. In southwest China, a very complex mountain terrain exists, a large number of bridges need to be built for crossing mountains and ravines, and the construction difficulty is very high due to the influence of the mountain terrain. In addition, due to the influence of rain and snow weather, natural disasters such as slope collapse, debris flow, flood, earthquake and the like can occur during highway operation, and the phenomena such as bridge damage and road collapse are caused. When the disasters occur, the local traffic and economic development are seriously affected, the bridge is extremely difficult to repair, and long time is required.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide a medium and small span corrugated web I-steel girder temporary bridge, which has a simple structure, is spliced by adopting corrugated web I-steel girders, has high bearing capacity, high rigidity and strong applicability, can be hoisted by a large crane when the bridge is damaged and the place is not limited, realizes quick pass-through maintenance, ensures normal and safe passing of vehicles, and furthest reduces the influence on traffic. If bridging tunneling occurs, the site is limited, when a large and medium crane cannot enter the site for construction, vertical splicing swivel construction can be adopted, the influence of the construction environment on repair construction is reduced, large hoisting equipment is not needed, and the repair speed is high.
The technical scheme of the utility model is as follows: the utility model provides a medium and small span corrugated web I-steel girder temporary bridge, includes two parallel arrangement's longeron and connects two a plurality of distribution beams on longeron upper portion, a plurality of distribution beams parallel arrangement, and with the longeron becomes 90 contained angles, distribution beam upper portion is equipped with the decking, the decking both sides are equipped with the guardrail along longeron vertically, still are equipped with a plurality of truss type internal connection roof beams between two parallel arrangement's longeron.
The longitudinal beam comprises a plurality of corrugated web I-beams which are sequentially connected, each corrugated web I-beam comprises a steel beam top plate, a steel beam bottom plate and end stiffening plates which are respectively connected with the two ends of the steel beam top plate and the steel beam bottom plate, a corrugated web is arranged between the steel beam top plate and the steel beam bottom plate, the corrugated web is respectively connected with the steel beam top plate and the steel beam bottom plate in a welded mode, a plurality of flanges are arranged on the end stiffening plates, and two adjacent corrugated web I-beams are fixedly connected through the flanges.
The thickness of the corrugated web is 4 mm-12 mm, the corrugated web is of a corrugated steel plate structure and comprises two end plates, a lower transverse plate and an upper transverse plate, wherein the lower transverse plate and the upper transverse plate are positioned between the two end plates, an inclined connecting plate is connected between the lower transverse plate and the upper transverse plate, and the inclined connecting plate and the lower transverse plate form an included angle of 45 degrees.
The girder is close to one side of truss-like internal connection roof beam is equipped with a plurality of connectors, the connector is the I-steel structure, sets up a plurality of bolt holes respectively in flange board, the web department of I-steel structure.
The truss type internal connection beam comprises a lower beam and an upper beam which are arranged in parallel, wherein vertical beams are arranged at the middle positions of the lower beam and the upper beam, the vertical beams are respectively perpendicular to the lower beam and the upper beam, oblique supporting beams are respectively arranged at two sides of the joint of the vertical beams and the lower beam, the upper ends of the oblique supporting beams are fixedly connected with the upper beam, and a plurality of connecting holes are respectively formed at two ends of the lower beam and the upper beam.
The bridge deck is a UHPC precast slab, an aluminum alloy plate or a honeycomb core plate.
The left side of the longitudinal beam is provided with a connecting plate, the middle part of the connecting plate is connected with a steel rotating hinge, and the steel rotating hinge is arranged at the top of the connecting end on the pier.
The utility model has the technical effects that: 1. the corrugated steel plate is adopted to form the I-shaped steel beam section through corrugation, so that the corrugated steel plate has high strength and high bearing capacity, and forms an I-shaped steel beam section with the steel beam top plate and the steel beam bottom plate, has high bearing capacity, high rigidity and strong applicability, and can greatly reduce construction cost; 2. all the components of the steel beam can be connected by bolts, can be assembled quickly on site, have reliable quality, have high construction speed no matter adopting a swivel or integral hoisting, and can be quickly installed; 3. the utility model can be quickly dismantled and recovered after use, each component is recycled, and the service life is long; 4. the distribution beam is installed in a mode that the slide way is matched with the winch, large-scale equipment and more manpower are not needed, and the construction is simple and efficient.
Further description will be made below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic three-dimensional structure of a medium and small span corrugated web i-beam bridge in accordance with an embodiment of the present utility model.
Fig. 2 is a schematic elevational view of a temporary bridge of a corrugated web i-beam with medium and small span according to an embodiment of the present utility model.
Fig. 3 is a schematic side view of a medium and small span corrugated web i-beam bridge in accordance with an embodiment of the present utility model.
Fig. 4 is a schematic elevational view of a single section corrugated web i-beam in accordance with an embodiment of the present utility model.
Fig. 5 is a schematic plan view of a single section corrugated web i-beam in accordance with an embodiment of the present utility model.
Fig. 6 is a schematic side view of a single section corrugated web i-beam in accordance with an embodiment of the present utility model.
FIG. 7 is a schematic view of the shape of a corrugated web according to an embodiment of the present utility model.
Fig. 8 is a schematic view showing a connection structure of truss-type inner contact beams according to an embodiment of the present utility model.
Fig. 9 is a schematic diagram illustrating a temporary bridge installation of a corrugated web i-beam with a medium and small span according to an embodiment of the present utility model.
Fig. 10 is a schematic diagram showing a secondary installation of a medium and small span corrugated web i-beam bridge according to an embodiment of the present utility model.
Fig. 11 is a schematic diagram III of a medium and small span corrugated web i-beam bridge installation in accordance with an embodiment of the present utility model.
Reference numerals: 1-longitudinal beams, 101-wave webs, 102-steel beam top plates, 103-steel beam bottom plates, 104-flange plates, 105-end stiffening plates, 106-connectors, 1011-end plates, 1012-lower transverse plates, 1013-oblique connecting plates, 1014-upper transverse plates, 2-connecting plates, 3-distribution beams, 4-bridge decks, 5-guardrails, 6-truss type inner connecting beams, 61-lower transverse beams, 62-upper transverse beams, 63-vertical beams, 64-oblique supporting beams, 65-connecting holes, 7-attached self-climbing installation trolleys, 8-electric hoists, 9-windhoists, 10-hauling ropes, 11-pier and 12-anchoring buckles.
Detailed Description
Embodiment 1 is as shown in fig. 1-3, a medium and small span corrugated web i-steel girder bridge comprises two parallel longitudinal beams 1 and a plurality of distribution beams 3 connected to the upper parts of the two longitudinal beams 1, wherein the distribution beams 3 are arranged in parallel and form an included angle of 90 degrees with the longitudinal beams 1, bridge decks 4 are arranged on the upper parts of the distribution beams 3, guardrails 5 are longitudinally arranged on two sides of the bridge decks 4 along the longitudinal beams 1, and a plurality of truss-type internal connecting beams 6 are further arranged between the two parallel longitudinal beams 1.
In the actual use process, the longitudinal beam 1 selects construction processes such as integral hoisting, turning and the like according to the construction environment, and the prefabricated small segments of the back field are quickly transported to the site for assembly and then are integrally installed, so that the assembly construction can be realized, and the smooth road can be ensured.
Embodiment 2 preferably, on the basis of embodiment 1, in this embodiment, as shown in fig. 4 to 6, the longitudinal beam 1 includes a plurality of corrugated web i-beams sequentially connected, the corrugated web i-beams include a girder top plate 102, a girder bottom plate 103, and end stiffening plates 105 respectively connected to two ends of the girder top plate 102 and the girder bottom plate 103, a corrugated web 101 is disposed between the girder top plate 102 and the girder bottom plate 103, the corrugated web 101 is respectively welded to the girder top plate 102 and the girder bottom plate 103, a plurality of flanges 104 are disposed on the end stiffening plates 105, and two adjacent corrugated web i-beams are fixedly connected through the flanges 104.
In the actual use process, the corrugated web plate 101 is adopted, the corrugated web plate is formed, the strength and the bearing capacity are high, the I-shaped steel beam section is formed by the corrugated web plate 101, the steel beam top plate 102 and the steel beam bottom plate 103, the bearing capacity is high, the rigidity is high, the applicability is strong, the construction cost can be greatly reduced, the end stiffening plate 105 is provided with a plurality of flange plates 104, and two adjacent corrugated web I-shaped steel beams are fixedly connected through the flange plates 104, so that the quick connection and the quick disassembly can be realized
Embodiment 3 preferably, in this embodiment, based on embodiment 1 or embodiment 2, the thickness of the corrugated web 101 is 4 mm-12 mm, and the corrugated web is a corrugated steel plate structure, and includes two end plates 1011, and a lower cross plate 1012 and an upper cross plate 1014 located between the two end plates 1011, wherein a diagonal connection plate 1013 is connected between the lower cross plate 1012 and the upper cross plate 1014, and the diagonal connection plate 1013 and the lower cross plate 1012 have an angle of 45 °.
In the actual use process, the wavy web plate is a wavy steel plate structure, as shown in fig. 7, and comprises two end plates 1011, a lower transverse plate 1012 and an upper transverse plate 1014 which are positioned between the two end plates 1011, wherein an inclined connecting plate 1013 is connected between the lower transverse plate 1012 and the upper transverse plate 1014, the inclined connecting plate 1013 and the lower transverse plate 1012 have an included angle of 45 degrees, the wavy steel plate structure is convenient to process, and the wavy steel plate structure can be integrally formed by using a steel plate through corrugation, and has good structural stability.
In the embodiment 4, preferably, on the basis of embodiment 1 or embodiment 3, in this embodiment, a plurality of connectors 106 are disposed on a side of the longitudinal beam 1, which is close to the truss-type internal connection beam 6, the connectors 106 are in an i-steel structure, and a plurality of bolt holes are respectively disposed at a flange plate and a web plate of the i-steel structure.
In the actual use process, the connector 106 is of an I-steel structure, a plurality of bolt holes are respectively formed in the flange plate and the web plate of the I-steel structure, and when the truss type internal connecting beam 6 is used, the connector 106 is fixedly connected with the truss type internal connecting beam through bolts after being inserted and connected, and the connection is fast and tight.
In the embodiment 5, as shown in fig. 8, in the present embodiment, the truss-type internal connection beam 6 includes a lower beam 61 and an upper beam 62 that are disposed in parallel, a vertical beam 63 is disposed in a middle position of the lower beam 61 and the upper beam 62, the vertical beam 63 is perpendicular to the lower beam 61 and the upper beam 62, two sides of a connection portion between the vertical beam 63 and the lower beam 61 are respectively provided with an oblique beam 64, an upper end of the oblique beam 64 is fixedly connected with the upper beam 62, and two ends of the lower beam 61 and two ends of the upper beam 62 are respectively provided with a plurality of connection holes 65.
In the practical use process, the truss type internal connecting beam 6 comprises a lower beam 61 and an upper beam 62 which are arranged in parallel, wherein a vertical beam 63 is arranged in the middle of the lower beam 61 and the upper beam 62, the vertical beam 63 is respectively perpendicular to the lower beam 61 and the upper beam 62, and inclined supporting beams 64 are respectively arranged at two sides of the joint of the vertical beam 63 and the lower beam 61, and the multi-beam connecting structure ensures the transverse stability between the two longitudinal beams 1, so that the two longitudinal beams can meet the construction and use requirements.
Embodiment 6 preferably, on the basis of embodiment 1 or embodiment 5, in this embodiment, the bridge deck 4 is a UHPC prefabricated panel, an aluminum alloy panel or a honeycomb core panel.
In the practical use process, the bridge deck plate 4 is a UHPC precast slab, an aluminum alloy plate or a honeycomb core plate, and is light, high in bearing capacity, light in material weight, convenient to install, high in construction speed and low in use cost.
Embodiment 7 preferably, on the basis of embodiment 1 or embodiment 6, in this embodiment, a connection board 2 is disposed on the left side of the longitudinal beam 1, a steel pivot is connected to the middle of the connection board 2, and the steel pivot is installed on top of the upper connection end 11 of the bridge pier.
In the practical use process, when the rotary body is selected to be constructed, the left side of the longitudinal beam 1 is provided with the connecting plate 2, the middle part of the connecting plate 2 is connected with the steel rotary hinge, the steel rotary hinge is arranged at the top of the upper connecting end 11 of the bridge pier, the attached self-climbing installation trolley 7 is utilized to vertically splice the corrugated web I-shaped steel beam into the longitudinal beam 1, then the longitudinal beam 1 is integrally lowered by the winch 9 and the steel wire rope 10, and the longitudinal beam 1 is arranged at the top of the upper connecting end 11 of the bridge pier at two ends after rotating around the steel rotary hinge.
The utility model comprises the following steps when in actual use:
s1: according to the design parameters of the middle and small span girder bridge to be installed, manufacturing each component part of the middle and small span corrugated web I-shaped girder bridge in a back field and performing trial assembly;
s2: the construction method is selected according to the terrain environment where the bridge is located, and specifically comprises the following steps:
s21: when the topography of the bridge has the condition of large crane approach, the mode of integral hoisting is adopted, and all the components of the medium and small span corrugated web I-shaped steel girder bridge are transported to the site for assembly and then are quickly installed by using a crane;
s22, when the bridge is in a deep trench canyon, both ends are connected with a tunnel, a large crane cannot hoist, rotation construction is selected, as shown in fig. 9-11, a high-strength connecting plate 2 and a steel rotation hinge are firstly configured, a corrugated web I-shaped steel beam is vertically spliced into a longitudinal beam 1 by using an attached self-climbing installation trolley 7, then the longitudinal beam 1 is integrally lowered by using a winch 9 and a steel wire rope 10, the longitudinal beam 1 is installed at the top of a bridge pier upper connecting end 11 at both ends, and a distribution beam 3 and a bridge deck 4 are installed by using a slideway and the winch 9, so that the installation is completed.
In the step S2, a construction method is selected according to the terrain environment where the bridge is located, when the distribution beam 3 and the bridge deck 4 are installed by selecting swivel construction, an anchoring buckle 12 is arranged on the surface of the longitudinal beam 1, a steel wire rope passes through the anchoring buckle 12, and the distribution beam 3 and the bridge deck 4 are pulled by a winch 9 to move along the upper slideway of the longitudinal beam 1 for installation.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.
Claims (7)
1. The utility model provides a medium and small span ripple web I-steel girder steel bridge which characterized in that: including two parallel arrangement's longeron (1) and connect two a plurality of distribution roof beam (3) on longeron (1) upper portion, a plurality of distribution roof beam (3) parallel arrangement, and with longeron (1) become 90 contained angles, distribution roof beam (3) upper portion is equipped with decking (4), decking (4) both sides are equipped with guardrail (5) along longeron (1) vertically, still are equipped with a plurality of trussed internal connection roof beam (6) between two parallel arrangement's longeron (1).
2. The medium and small span corrugated web i-beam bridge of claim 1, wherein: the longitudinal beam (1) comprises a plurality of corrugated web I-beams which are sequentially connected, each corrugated web I-beam comprises a steel beam top plate (102), a steel beam bottom plate (103) and end stiffening plates (105) which are respectively connected with the steel beam top plate (102) and the steel beam bottom plate (103), a corrugated web (101) is arranged between the steel beam top plate (102) and the steel beam bottom plate (103), the corrugated web (101) is respectively connected with the steel beam top plate (102) and the steel beam bottom plate (103) in a welding mode, a plurality of flange plates (104) are arranged on the end stiffening plates (105), and two adjacent corrugated web I-beams are fixedly connected through the flange plates (104).
3. A medium and small span corrugated web i-beam bridge as defined in claim 2 wherein: the thickness of the corrugated web (101) is 4-12 mm, the corrugated web is of a wavy steel plate structure and comprises two end plates (1011) and a lower transverse plate (1012) and an upper transverse plate (1014) which are positioned between the two end plates (1011), an oblique connecting plate (1013) is connected between the lower transverse plate (1012) and the upper transverse plate (1014), and an included angle between the oblique connecting plate (1013) and the lower transverse plate (1012) is 45 degrees.
4. A medium and small span corrugated web i-beam bridge as defined in claim 2 wherein: a plurality of connectors (106) are arranged on one side, close to the truss type internal connecting beam (6), of the longitudinal beam (1), the connectors (106) are of an I-steel structure, and a plurality of bolt holes are respectively formed in a flange plate and a web plate of the I-steel structure.
5. The medium and small span corrugated web i-beam bridge of claim 1, wherein: truss-like internal connection roof beam (6) are including parallel arrangement's bottom end rail (61) and entablature (62), bottom end rail (61) and entablature (62) intermediate position are equipped with perpendicular roof beam (63), perpendicular roof beam (63) with bottom end rail (61) and entablature (62) are perpendicular respectively, perpendicular roof beam (63) with bottom end rail (61) junction both sides are equipped with oblique cantilever beam (64) respectively, oblique cantilever beam (64) upper end and entablature (62) fixed connection, the both ends of bottom end rail (61) and entablature (62) are equipped with a plurality of connecting holes (65) respectively.
6. The medium and small span corrugated web i-beam bridge of claim 1, wherein: the bridge deck (4) is a UHPC precast slab, an aluminum alloy plate or a honeycomb core slab.
7. The medium and small span corrugated web i-beam bridge of claim 1, wherein: the left side of longeron (1) is equipped with connecting plate (2), connecting plate (2) middle part is connected with steel and changes the hinge, steel changes the hinge and installs on pier upper junction end (11) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321814393.0U CN220413977U (en) | 2023-07-11 | 2023-07-11 | Middle-small span corrugated web I-shaped steel girder bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321814393.0U CN220413977U (en) | 2023-07-11 | 2023-07-11 | Middle-small span corrugated web I-shaped steel girder bridge |
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| Publication Number | Publication Date |
|---|---|
| CN220413977U true CN220413977U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321814393.0U Active CN220413977U (en) | 2023-07-11 | 2023-07-11 | Middle-small span corrugated web I-shaped steel girder bridge |
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| Country | Link |
|---|---|
| CN (1) | CN220413977U (en) |
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2023
- 2023-07-11 CN CN202321814393.0U patent/CN220413977U/en active Active
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