CN220888314U - Arch rib embedded string pipe positioning and supporting device - Google Patents
Arch rib embedded string pipe positioning and supporting device Download PDFInfo
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- CN220888314U CN220888314U CN202322235365.XU CN202322235365U CN220888314U CN 220888314 U CN220888314 U CN 220888314U CN 202322235365 U CN202322235365 U CN 202322235365U CN 220888314 U CN220888314 U CN 220888314U
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- wedge block
- rectangular frame
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- arch rib
- supporting
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to the technical field of bridge structures. The positioning and supporting device for the pre-buried chord tube of the arch rib comprises a plurality of positioning frameworks for supporting the chord tube of the steel tube arch bridge, wherein the positioning frameworks are distributed from front to back along the longitudinal direction of the steel tube arch bridge; the positioning framework comprises a supporting foundation and a rectangular frame which is arranged on the supporting foundation; the support foundation is a reinforced concrete platform which is horizontally arranged; a plurality of support rods are uniformly distributed in the rectangular frame at intervals side by side; an adjusting component used for adjusting the relative height between the rectangular frame and the chord tube is arranged between the rectangular frame and the chord tube. The utility model can improve the installation precision of the pre-embedded section of the arch rib and the bridge construction efficiency.
Description
Technical Field
The utility model relates to the technical field of bridge structures, in particular to a positioning and supporting device for an arch rib embedded chord tube.
Background
The construction of the arch base of the steel pipe concrete arch bridge needs to synchronously pre-embed the arch rib chord tube embedded part, the pre-embedding precision requirement is very high, and the construction process needs to set up a stiff framework to support and position the arch rib chord tube. The conventional stiff frameworks are mostly designed in a whole body (as shown in fig. 1), and the following problems exist due to the processing precision deviation of the stiff frameworks and the deformation in the hoisting process: (1) For the fixed embedded part, the structural rigidity of the local position is insufficient, and the integral type stiffness framework cannot effectively support the force points of the embedded part. (2) In order to control hydration heat of mass concrete, the arch support is poured in layers, and the whole-body type stiff framework is required to be welded and lengthened continuously, so that part of rod pieces are suspended, positioning difficulty of the chord tube is increased, and operation efficiency is low. (3) The floating-resistant measures of the embedded part are not considered in the design of the through type stiffness framework, and the precision of the embedded part is further changed after concrete is poured. (4) Because the stiffness framework is highly fixed, if the height of the embedded part is not matched with the height of the stiffness framework in the installation process, the height adjustment and positioning of the embedded part are difficult, the construction quality can be influenced, and the construction efficiency is lower.
Therefore, there is an urgent need for a positioning and supporting device for a chord tube embedded in an arch rib, so as to improve the accuracy of installing an embedded section of the arch rib, thereby precisely controlling the alignment of the arch rib.
Disclosure of utility model
The utility model aims to at least solve one of the technical problems in the background art, and provides a positioning and supporting device for an arch rib embedded chord tube, which has a reasonable structure, can improve the installation precision of an arch rib embedded section and improve the construction efficiency.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The positioning and supporting device for the pre-buried chord tube of the arch rib comprises a plurality of positioning frameworks for supporting the chord tube of the steel tube arch bridge, wherein the positioning frameworks are distributed from front to back along the longitudinal direction of the steel tube arch bridge; the positioning framework comprises a supporting foundation and a rectangular frame which is arranged on the supporting foundation; the support foundation is a reinforced concrete platform which is horizontally arranged; a plurality of support rods are uniformly distributed in the rectangular frame at intervals side by side; an adjusting component used for adjusting the relative height between the rectangular frame and the chord tube is arranged between the rectangular frame and the chord tube.
As a further improvement of the utility model, the adjusting assembly comprises a lower adjusting wedge block and an upper adjusting wedge block, wherein the lower adjusting wedge block and the upper adjusting wedge block can slide relatively, the included angles of the wedge surfaces of the lower adjusting wedge block and the upper adjusting wedge block relative to the right angle side surfaces are the same, the lower adjusting wedge block and the upper adjusting wedge block are respectively provided with a strip hole vertically penetrating through one right angle side surface and one wedge surface, the strip holes are internally provided with adjusting screws penetrating through the lower adjusting wedge block and the upper adjusting wedge block, and two ends of each adjusting screw are connected with locking nuts; and a hand wheel is arranged at one end of the adjusting screw, which is far away from the locking nut.
As a further improvement of the utility model, the front sections of the lower adjusting wedge block and the upper adjusting wedge block are right trapezoid.
As a further improvement of the utility model, two ends of the top of the positioning framework extend upwards to form column tops respectively, and a shoulder pole beam used for compressing and limiting the string tube is arranged between the column tops.
As a further improvement of the utility model, a diagonal brace is arranged in the rectangular frame, one end of the diagonal brace is connected with the bottom of the rectangular frame, and the other end of the diagonal brace is connected with the side edge of the rectangular frame.
As a further improvement of the utility model, the top of the jacking column and the top of the supporting rod are provided with a plurality of bolt holes along the height direction; the rectangular frame comprises a U-shaped frame and a top cross beam positioned at the opening of the U-shaped frame, and the top cross beam is connected to the top column and the supporting rod through bolts.
By adopting the technical scheme, the utility model has the following beneficial effects:
1. The arch rib embedded string tube positioning and supporting device is reasonable in structure, a load transmission path is reasonable and definite, the material strength is fully utilized, and the engineering cost is greatly reduced; the steel pipe arch bridge is characterized in that a plurality of positioning frameworks are distributed in the longitudinal direction of the steel pipe arch bridge from front to back, so that the embedded part string pipe of the steel pipe arch bridge can be stably and effectively supported; through setting up adjusting part between rectangle frame and chord pipe, can realize convenient, quick, accurate regulation built-in fitting elevation, guarantee the arch rib installation accuracy.
2. According to the adjusting assembly, when the positioning framework cannot provide enough adjustment height, the adjusting screw is rotated to further adjust the lower adjusting wedge block and the upper adjusting wedge block which are arranged in a sliding mode to adjust the overall height of the wedge blocks, so that the problem of height adjustment of the positioning framework is solved, and accurate positioning of the arch rib embedded section is achieved.
3. The positioning and supporting device for the embedded chord tube of the arch rib is more suitable for a construction mode of layered pouring of the arch base, improves the erection quality of the site stiffness framework, and is stronger in supporting performance on the force points of the embedded chord tube.
4. According to the utility model, the shoulder pole beam connected with the rectangular frame is additionally arranged at the upper edge of the chord tube of the arch rib, so that further precision change caused by buoyancy in the subsequent arch seat concrete pouring is effectively avoided.
5. After the arch rib embedded chord tube positioning and supporting device is used for construction, the embedded chord tube can be accurately positioned and installed only once without repeated lifting and adjusting, and the construction efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional monolithic stiff skeleton;
FIG. 2 is a schematic structural view of a positioning and supporting device for pre-buried chord tubes of arch ribs according to the present utility model;
Fig. 3 is a schematic structural view of an arch rib embedded chord tube positioning and supporting device (connected with a shoulder pole beam) according to the utility model;
FIG. 4 is a schematic view of the structure of the positioning framework, chord tube and adjusting assembly of the present utility model;
FIG. 5 is a schematic illustration of a specific construction of an adjustment assembly according to the present utility model;
FIG. 6 is a schematic view of a rectangular frame of the present utility model;
FIG. 7 is a construction site diagram of a rib pre-buried chord tube positioning and supporting device of the utility model;
Wherein, the reference numerals in the drawings are as follows: 1. a chord tube; 2. a general type stiff skeleton; 3. a support base; 4. a rectangular frame; 5. a support rod; 6. an adjustment assembly; 7. a lower adjustment wedge; 8. an upper adjusting wedge block; 9. adjusting a screw; 10. a lock nut; 11. a hand wheel; 12. a top column; 13. a shoulder pole beam; 14. diagonal bracing; 15. bolt holes; 16. u-shaped frames; 17. a top cross beam;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 2-7, an arch rib embedded chord tube positioning and supporting device comprises a plurality of positioning frameworks for supporting chord tubes 1 of a steel tube arch bridge, wherein the positioning frameworks are distributed from front to back along the longitudinal direction of the steel tube arch bridge; the adjacent positioning frameworks can be connected through a connecting rod; the positioning framework comprises a supporting foundation 3 and a rectangular frame 4 which is arranged on the supporting foundation 3, and the rectangular frame 4 is a portal frame; the support foundation 3 is a reinforced concrete platform which is horizontally arranged; a plurality of support rods 5 are uniformly distributed in the rectangular frame 4 at intervals side by side; an adjusting component 6 for adjusting the relative height between the rectangular frame 4 and the chord tube 1 is arranged between the rectangular frame 4 and the chord tube 1.
The steel tube arch bridge is longitudinally provided with the plurality of positioning frameworks from front to back, so that the arch ribs of the steel tube arch bridge can be stably and effectively supported, and the positioning frameworks comprise the supporting foundation 3 made of reinforced concrete and the rectangular frame 4 which is arranged on the supporting foundation 3; the rectangular frame 4 can ensure enough embedded depth and form strong support for the force and the overturning point of the embedded part string pipe 1; through setting up adjusting part 6 between rectangular frame 4 chord pipe, can realize convenient, quick, accurate regulation built-in fitting elevation, guarantee arch rib installation accuracy
The adjusting assembly 6 comprises a lower adjusting wedge block 7 and an upper adjusting wedge block 8, wherein the lower adjusting wedge block 7 and the upper adjusting wedge block 8 can slide relatively, the included angles of the wedge surfaces of the lower adjusting wedge block 7 and the upper adjusting wedge block 8 relative to right-angle side surfaces are the same, and the positive sections of the lower adjusting wedge block 7 and the upper adjusting wedge block 8 are right-angle trapezoids; the lower adjusting wedge block 7 and the upper adjusting wedge block 8 are respectively provided with a strip hole vertically penetrating through one right-angle side face and one wedge face, an adjusting screw rod 9 penetrating through the lower adjusting wedge block 7 and the upper adjusting wedge block 8 is arranged in the strip hole, and two ends of the adjusting screw rod 9 are connected with locking nuts 10; and a hand wheel 11 is arranged at one end of the adjusting screw 9, which is far away from the locking nut 10. The lower adjusting wedge block 7 and the upper adjusting wedge block 8 which are arranged in a sliding manner are adjusted by rotating the adjusting screw 9, so that the overall height of the wedge block is adjusted, and the height of the positioning framework is adjusted.
In this embodiment, the top both ends of location skeleton upwards extend respectively and form the capital, as shown in fig. 3, be equipped with between the capital and be used for compressing tightly spacing shoulder pole roof beam 13 to string pipe 1, shoulder pole roof beam 13 can compress tightly string pipe 1, prevents that concrete placement from leading to the built-in fitting come-up.
In order to enhance the stability of the rectangular frame 4, a diagonal brace 14 is disposed in the rectangular frame 4, one end of the diagonal brace 14 is connected with the bottom of the rectangular frame 4, and the other end is connected with the side edge of the rectangular frame 4.
The top of the top column 12 and the top of the support rod 5 are provided with a plurality of bolt holes 15 along the height direction; the rectangular frame 4 comprises a U-shaped frame 16 and a top cross beam 17 positioned at the opening of the U-shaped frame 16, the top cross beam 17 is connected to the top column 12 and the support rod 5 through bolts, the distance between the rectangular frame 4 and the string tube 1 can be conveniently adjusted, and the rectangular frame 4 and the arch rib can be finely adjusted by the adjusting component 6 in the later stage; in other embodiments, the top cross member 17 may be welded directly to the roof and support bar 5.
The embodiment of the utility model relates to a positioning and supporting device for an arch rib embedded chord tube, which comprises the following construction processes:
1. punching the top column 12 and the support rod 5 of the rectangular frame 4 according to the design position of the bottom edge of the pipe orifice of the embedded part chord pipe 1 to the height of the poured arch abutment concrete layer, and reserving a bolt vertical hole group;
2. Combining the layering heights of the arch seats, and adopting L100 multiplied by 10 angle steel to set up the frame structure of the rectangular frame 4 in advance according to the design position of the embedded part string pipe 1;
3. After the embedded part string pipe 1 is initially positioned (a crane does not loosen a hook), bolting and fastening a pipe orifice bottom edge cross rod of the embedded part string pipe 1 with a vertical supporting rod 5 according to a specific position;
4. After the embedded part string pipe 1 is seated on the rectangular frame 4, an adjusting component 6 formed by a wedge block structure between the positioning framework and the arch rib is adjusted so as to be positioned finally and accurately;
5. After the embedded part string pipe 1 is adjusted in place, a shoulder pole beam 13 is welded at the top of the pipe orifice of the string pipe 1, and the shoulder pole beam 13 is welded and fixed with the rectangular frame 4.
The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.
Claims (6)
1. The utility model provides a pre-buried string of arch rib pipe location strutting arrangement which characterized in that: the steel pipe arch bridge comprises a plurality of positioning frameworks for supporting chord pipes (1) of the steel pipe arch bridge, wherein the positioning frameworks are distributed from front to back along the longitudinal direction of the steel pipe arch bridge; the positioning framework comprises a supporting foundation (3) and a rectangular frame (4) which is arranged on the supporting foundation (3); the supporting foundation (3) is a reinforced concrete platform which is horizontally arranged; a plurality of support rods (5) are uniformly distributed in the rectangular frame (4) at intervals side by side; an adjusting component (6) used for adjusting the relative height between the rectangular frame (4) and the chord tube (1) is arranged between the rectangular frame (4) and the chord tube (1).
2. The arch rib embedded chord tube positioning and supporting device according to claim 1, wherein: the adjusting assembly (6) comprises a lower adjusting wedge block (7) and an upper adjusting wedge block (8), the lower adjusting wedge block (7) and the upper adjusting wedge block (8) can slide relatively, the included angles of the wedge surfaces of the lower adjusting wedge block (7) and the upper adjusting wedge block (8) relative to the right-angle side surfaces are the same, strip holes which vertically penetrate through one right-angle side surface and one wedge surface are respectively formed in the lower adjusting wedge block (7) and the upper adjusting wedge block (8), adjusting screws (9) penetrating through the lower adjusting wedge block (7) and the upper adjusting wedge block (8) are arranged in the strip holes, and locking nuts (10) are connected to the two ends of the adjusting screws (9); one end of the adjusting screw rod (9) far away from the locking nut (10) is provided with a hand wheel (11).
3. The arch rib embedded chord tube positioning and supporting device according to claim 2, wherein: the positive sections of the lower adjusting wedge block (7) and the upper adjusting wedge block (8) are right trapezoid.
4. The arch rib embedded chord tube positioning and supporting device according to claim 1, wherein: the two ends of the top of the positioning framework extend upwards to form column tops respectively, and a shoulder pole beam (13) used for compressing and limiting the string tube (1) is arranged between the column tops.
5. The arch rib embedded chord tube positioning and supporting device according to claim 1, wherein: the rectangular frame (4) is internally provided with an inclined strut (14), one end of the inclined strut (14) is connected with the bottom of the rectangular frame (4), and the other end of the inclined strut is connected with the side edge of the rectangular frame (4).
6. The arch rib embedded chord tube positioning and supporting device according to claim 4, wherein: the tops of the column top (12) and the supporting rod (5) are provided with a plurality of bolt holes (15) along the height direction; the rectangular frame (4) comprises a U-shaped frame (16) and a top cross beam (17) positioned at the opening of the U-shaped frame (16), and the top cross beam (17) is connected to the column top (12) and the support rod (5) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322235365.XU CN220888314U (en) | 2023-08-18 | 2023-08-18 | Arch rib embedded string pipe positioning and supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322235365.XU CN220888314U (en) | 2023-08-18 | 2023-08-18 | Arch rib embedded string pipe positioning and supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220888314U true CN220888314U (en) | 2024-05-03 |
Family
ID=90874204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322235365.XU Active CN220888314U (en) | 2023-08-18 | 2023-08-18 | Arch rib embedded string pipe positioning and supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220888314U (en) |
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2023
- 2023-08-18 CN CN202322235365.XU patent/CN220888314U/en active Active
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