CN220318359U - Steel box girder bridge deck plate suspension formwork structure - Google Patents
Steel box girder bridge deck plate suspension formwork structure Download PDFInfo
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- CN220318359U CN220318359U CN202320611897.6U CN202320611897U CN220318359U CN 220318359 U CN220318359 U CN 220318359U CN 202320611897 U CN202320611897 U CN 202320611897U CN 220318359 U CN220318359 U CN 220318359U
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- box girder
- steel box
- bridge deck
- steel
- deck plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 238000009415 formwork Methods 0.000 title claims abstract description 15
- 239000000725 suspension Substances 0.000 title claims description 16
- 238000010276 construction Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model relates to a steel box girder bridge deck plate hanging formwork structure, which belongs to the technical field of steel box girder bridge deck plate formwork structures and has the technical scheme that the steel box girder bridge deck plate hanging formwork structure comprises a plurality of parallel cross beams, a plurality of longitudinal beams erected between the cross beams and a bridge deck plate bottom die paved on the upper part of the longitudinal beams, wherein connecting screws are arranged at the end parts of the cross beams and axially penetrate through the steel box girder deck plate and the cross beams, and positioning nuts are respectively arranged at the two ends of the connecting screws; the utility model has the characteristics of low cost and convenient construction.
Description
Technical Field
The utility model relates to the technical field of steel box girder bridge deck formwork structures, in particular to a steel box girder bridge deck slab hanging formwork structure.
Background
In the construction process of the steel-concrete composite beam for bridge engineering, the pouring of the bridge deck after the erection of the main beam is completed is an important work for connecting all box girder main bodies. The conventional method mainly comprises the steps of processing the original ground under the steel box girder, erecting various bracket systems to lay bridge deck bottom molds after the original ground meets the requirements of bearing capacity and flatness, and completing pouring of the bridge deck of the steel box girder. The existing form mainly adopts parameters such as full-hall coiled scaffold, steel pipe column support (support system size, frame pipe size, erection form, foundation treatment requirement and the like according to cover beam height, upper load and foundation bearing capacity calculation and determination), pre-buried steel bar buckles or rigid plates are connected with pre-buried steel bars (pre-buried steel plates) during foundation treatment, the top of the coiled support system is connected with pre-buried steel bars of an anti-collision wall to ensure stability, I-steel, square timber and other distribution beams are arranged at the top of the coiled support, then full-paved bamboo plywood is used as a bottom die, the dead weight of the bridge deck and load generated by construction are transmitted to the treated ground through the bamboo plywood, the distribution beam, the coiled support (steel pipe column) system, and the coiled support (steel pipe column) system can provide sufficient strength and rigidity through load and foundation bearing capacity calculation and determination, so that the construction safety of the support system is met.
When the scaffold and the steel pipe column structure are used as the steel box girder panel, the scaffold and the steel pipe column structure have the following defects: 1. the manufacturing cost is high: the steel box girder spans a large clearance height, and the steel column support or the steel column support is huge in material. 2. Difficulty in turnover: the existing bracket system is long in installation and disassembly period and high in hoisting and transportation cost, and can be used only by adjusting according to different terrains and steel box girder specifications. 3. The requirements on construction sites are high: the full-hall scaffold has bearing capacity requirements on the foundation, if the field foundation cannot meet the test requirements, the foundation is constructed after being processed to be qualified, the full-hall scaffold has wide occupied area, large foundation processing area and high cost; the steel pipe column support has higher requirement on the foundation, and the current industrial process is as follows: the form of beam distribution at the upper part, steel pipe columns, concrete strip foundation and foundation is difficult to turn over, and the strip foundation cannot be arranged at the position with large gradient difference of the foundation, so that the cost is high. 4. Combining the characteristics of the project: the steel box girders are in various forms, the distance between the steel box girders is long, and the turnover cost is too high; the maximum span steel box girder is 44+60+44m and is positioned on the existing main road, so that the support erection construction is carried out under the condition that the existing road is smooth, and the safety risk and the operation difficulty are huge; the existing road longitudinal slopes on site are changeable and have large differences, and the steel upright column bar-shaped foundation cannot be recycled.
Disclosure of Invention
The utility model aims to provide a steel box girder bridge deck slab suspension formwork structure which has the characteristics of low manufacturing cost and convenience in construction.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a steel box girder bridge deck plate suspension die carrier structure, includes the crossbeam of a plurality of parallel arrangement, a plurality of erects the longeron between the crossbeam and lays the bridge deck plate die block on longeron upper portion, the tip of crossbeam is provided with connecting screw, connecting screw axially runs through steel box girder panel and crossbeam, set nut is installed respectively at connecting screw's both ends.
Through above-mentioned technical scheme, through set up connecting screw at the tip of crossbeam, utilize connecting screw to link to each other crossbeam and steel case roof beam panel, exert pulling force to the crossbeam through connecting screw, and then make the die carrier hang on steel case roof beam, and then as the basis of laying the bridge floor, simple structure, construction convenience.
Preferably, the cross beam comprises two sub beams which are arranged in parallel, a plurality of connecting blocks are arranged between the two sub beams, and the connecting blocks are respectively and fixedly connected with the two sub beams.
Through above-mentioned technical scheme, the crossbeam includes two parallel arrangement's sub-roof beam to connect through the connecting block, simple structure, and can pass connecting screw rod between making two sub-roof beams.
Preferably, the sub-beams are channel steel, and the two sub-beams are arranged back to back.
Through above-mentioned technical scheme, the sub-roof beam adopts the channel-section steel, easily draws materials, and has good structural strength.
Preferably, the bottom of the cross beam is provided with a supporting frame, and the supporting frame comprises a vertical supporting rod which is vertically arranged, an inclined supporting rod which is intersected with the transverse inclination and connecting rods with two ends respectively connected and fixed with the vertical supporting rod and the inclined supporting rod.
Through above-mentioned technical scheme, support the crossbeam through setting up a supporting beam in the crossbeam bottom, and then have better stability when transversely encorbelmenting.
Preferably, the steel box girder further comprises an adjusting screw rod horizontally fixed on the side wall of the steel box girder, an adjusting sleeve is sleeved on the adjusting screw rod, and the vertical supporting rod is fixedly connected with the adjusting sleeve; and adjusting nuts matched with the adjusting screw are respectively arranged at two ends of the adjusting sleeve.
Through above-mentioned technical scheme, the carriage passes through adjusting screw and adjusting sleeve and then installs on the steel case roof beam, and then slides adjusting sleeve through following adjusting screw to fix a position adjusting sleeve through adjusting nut, thereby can the position of transverse adjustment crossbeam, convenient operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic structural diagram of embodiment 1.
Fig. 2 is a schematic cross-sectional view of a cross-beam.
Fig. 3 is a top view of the cross beam.
Fig. 4 is a schematic structural diagram of embodiment 2.
Wherein, 1, a beam; 11. a sub-beam; 12. a connecting block; 2. a longitudinal beam; 3. bottom die of bridge deck; 4. a connecting screw; 5. positioning a nut; 6. a support frame; 61. a vertical support rod; 62. a diagonal support bar; 63. a connecting rod; 7. adjusting a screw; 8. an adjustment sleeve; 9. and adjusting the nut.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that, as used in the description below, the words "front", "back", "left", "right", "upper" and "lower" refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions away from the geometric center of a particular component, respectively.
Example 1:
the utility model provides a steel case girder bridge deck plate suspension die carrier structure, is hereafter referred to as suspension die carrier structure, includes a plurality of parallel arrangement's crossbeam 1, a plurality of longeron 2 of erectting between crossbeam 1 and lays the bridge deck plate die block 3 on longeron 2 upper portion. The suspension formwork structure has two application places, one is applied between the chambers, namely between two steel box girders, and the other is applied to the overhanging side, namely at one side of the steel box girders. The present embodiment applies between chambers.
The two ends of the cross beam 1 are respectively provided with a connecting screw 4, the connecting screw 4 axially penetrates through the steel box girder panel and the cross beam 1, and the two ends of the connecting screw 4 are respectively provided with a positioning nut 5. The steel box girder is shown in the figure A.
The beam 1 comprises two sub beams 11 which are arranged in parallel, the sub beams 11 are channel steel, and the two sub beams 11 are arranged back to back. A plurality of connecting blocks 12 are arranged between the two sub-beams 11, and the connecting blocks 12 are fixedly connected with the two sub-beams 11 respectively. Through the gap between the two sub-beams 11 and further through the connecting screw 4.
When the suspension formwork structure is constructed, the steel box girder is perforated along the length direction of the steel box girder, then the connecting screw 4 is used for penetrating through the steel box girder panel and the transverse direction, positioning is carried out through the positioning nut 5, and the cross beam 1 is suspended between the two box girders. And then erecting a longitudinal beam 2 and a bridge deck bottom die 3 at the transverse upper part in sequence to finish the construction of the suspension die carrier.
Example 2:
the embodiment is applied to the overhanging side of the steel box girder.
The utility model provides a steel case girder bridge deck plate suspension die carrier structure, is hereafter referred to as suspension die carrier structure, includes a plurality of parallel arrangement's crossbeam 1, a plurality of longeron 2 of erectting between crossbeam 1 and lays the bridge deck plate die block 3 on longeron 2 upper portion. One end of the cross beam 1, which is close to the steel box girder, is provided with a connecting screw 4, the connecting screw 4 axially penetrates through the steel box girder panel and the cross beam 1, and two ends of the connecting screw 4 are respectively provided with a positioning nut 5.
The bottom of the beam 1 is provided with a supporting frame 6. The support frame 6 comprises a vertical support rod 61 which is vertically arranged, an inclined support rod 62 which is obliquely intersected with the transverse direction, and a connecting rod 63 of which the two ends are respectively connected and fixed with the vertical support rod 61 and the inclined support rod 62; the vertical support rods 61 and the inclined support rods 62 are fixedly connected with the cross beam 1 respectively.
The suspension formwork structure also comprises an adjusting screw rod 7 horizontally fixed on the side wall of the steel box girder. The adjusting screw 7 is sleeved with an adjusting sleeve 8, and the vertical supporting rod 61 is fixedly connected with the adjusting sleeve 8. The two ends of the adjusting sleeve 8 are respectively provided with an adjusting nut 9 matched with the adjusting screw 7. The adjusting sleeve 8 slides along the length direction of the adjusting screw 7 and is positioned by the adjusting nut 9, so that the position of the cross beam 1 can be conveniently adjusted. The cross beam 1 is supported by the support frame 6, so that the cross beam 1 is more stable in overhanging state.
The structure of embodiment 2 is the same as that of embodiment 1, and will not be described again.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (5)
1. The utility model provides a steel case girder bridge deck plate hangs die carrier structure, includes crossbeam (1) of a plurality of parallel arrangement, a plurality of erects longeron (2) between crossbeam (1) and lays bridge deck plate die block (3) on longeron (2) upper portion, its characterized in that: the end of the cross beam (1) is provided with a connecting screw rod (4), the connecting screw rod (4) axially penetrates through the steel box girder panel and the cross beam (1), and two ends of the connecting screw rod (4) are respectively provided with a positioning nut (5).
2. The steel box girder bridge deck suspension formwork structure of claim 1, wherein: the beam (1) comprises two sub beams (11) which are arranged in parallel, a plurality of connecting blocks (12) are arranged between the two sub beams (11), and the connecting blocks (12) are fixedly connected with the two sub beams (11) respectively.
3. A steel box girder bridge deck suspension formwork structure as claimed in claim 2, wherein: the sub beams (11) are channel steel, and the two sub beams (11) are arranged back to back.
4. The steel box girder bridge deck suspension formwork structure of claim 1, wherein: the bottom of the cross beam (1) is provided with a support frame (6), and the support frame (6) comprises a vertical support rod (61) which is vertically arranged, an inclined support rod (62) which is intersected with the transverse inclination, and a connecting rod (63) with two ends respectively connected with the vertical support rod (61) and the inclined support rod (62).
5. The steel box girder bridge deck suspension formwork structure of claim 4, wherein: the steel box girder comprises a steel box girder body, and is characterized by further comprising an adjusting screw (7) horizontally fixed on the side wall of the steel box girder, wherein an adjusting sleeve (8) is sleeved on the adjusting screw (7), and the vertical supporting rod (61) is fixedly connected with the adjusting sleeve (8); and adjusting nuts (9) matched with the adjusting screw rods (7) are respectively arranged at two ends of the adjusting sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611897.6U CN220318359U (en) | 2023-03-24 | 2023-03-24 | Steel box girder bridge deck plate suspension formwork structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611897.6U CN220318359U (en) | 2023-03-24 | 2023-03-24 | Steel box girder bridge deck plate suspension formwork structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220318359U true CN220318359U (en) | 2024-01-09 |
Family
ID=89409964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320611897.6U Active CN220318359U (en) | 2023-03-24 | 2023-03-24 | Steel box girder bridge deck plate suspension formwork structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220318359U (en) |
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2023
- 2023-03-24 CN CN202320611897.6U patent/CN220318359U/en active Active
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