CN220079789U - Combined support for bridge arch ring sleeve arch reinforcement construction of river-crossing bridge - Google Patents
Combined support for bridge arch ring sleeve arch reinforcement construction of river-crossing bridge Download PDFInfo
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- CN220079789U CN220079789U CN202321635496.0U CN202321635496U CN220079789U CN 220079789 U CN220079789 U CN 220079789U CN 202321635496 U CN202321635496 U CN 202321635496U CN 220079789 U CN220079789 U CN 220079789U
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 230000002787 reinforcement Effects 0.000 title claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000002356 single layer Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000011435 rock Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000009432 framing Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 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
- 238000012946 outsourcing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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 embodiment of the utility model relates to a combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing bridge. The combined bracket comprises a plurality of groups of longitudinal stress distribution beams, two ends of which are respectively arranged on two abutment foundations below the arch ring, a middle support structure for supporting the middle parts of the longitudinal stress distribution beams, a plurality of transverse stress distribution beams arranged on the longitudinal stress distribution beams in each group, and a hall scaffold arranged on the transverse stress distribution beams in a building manner; one end of each transverse stress distribution beam, which is positioned on the same side, extends out of the same nearest group of longitudinal stress distribution beams to be not smaller than a preset distance, a bearing plate is paved on the part, extending out of the same nearest group of longitudinal stress distribution beams, of each transverse stress distribution beam, and a protective rail is arranged to form a construction temporary bridge. The combined support is suitable for reinforcement construction of the bridge arch ring sleeve arch of the river bridge, wherein the water level is deep, the surface of the river bed is a rock surface, and normal water flow of the river is required to be ensured.
Description
Technical Field
The utility model relates to the technical field of road and bridge construction, in particular to a combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing bridge.
Background
The bridge full framing method is to set up a bracket at the bridge position, pour bridge body concrete on the bracket, dismantle the template and the bracket after the concrete reaches the strength, and the construction is mature in technology, safe and reliable as the traditional construction mode.
The full framing method construction is suitable for bridge spans without navigation and traffic requirements, and the construction is performed in areas with good foundation conditions. For deep water level, the surface of the river bed is a rock surface, and the bridge arch ring sleeve arch reinforcement construction of the river-crossing bridge, which needs to ensure normal water flow of the river, cannot be directly applied to a full framing method.
Disclosure of Invention
The present utility model has been made in view of the above-mentioned problems, and an object of the present utility model is to provide a composite bracket for bridge arch reinforcement construction of a river-crossing bridge, which overcomes the above-mentioned problems or at least partially solves the above-mentioned problems.
The embodiment of the utility model provides a combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing bridge.
The combined bracket for bridge arch ring sleeve arch reinforcement construction of the river-crossing bridge comprises a plurality of groups of longitudinal stress distribution beams, two ends of the longitudinal stress distribution beams are respectively arranged on two pier foundations below the arch rings, a middle support structure is used for supporting the middle parts of the longitudinal stress distribution beams, a plurality of transverse stress distribution beams are simultaneously arranged on the longitudinal stress distribution beams, and full-hall scaffolds are arranged on the transverse stress distribution beams in a building manner and are used for supporting templates; one end of each transverse stress distribution beam, which is positioned at the same side, extends out of the same nearest group of longitudinal stress distribution beams to be not smaller than a preset distance, a bearing plate is paved on the part, extending out of the same nearest group of longitudinal stress distribution beams, of each transverse stress distribution beam, and a protective rail is arranged to form a construction temporary bridge; the middle supporting structure comprises a plurality of supporting piers which are distributed transversely, round tube supports which are fixed on the supporting piers, and steel cross joints which are simultaneously arranged on the round tube supports.
In one embodiment, each set of the longitudinal force distribution beams is a single layer double row bailey beam.
In one embodiment, the transverse force distribution beam is an i-steel distribution beam.
In one embodiment, the joints of the transverse stress distribution beams and the longitudinal stress distribution beams are fixed by adopting buckles.
In one embodiment, the steel cross-section is a double-spliced I-steel cross-section, and the joints of the steel cross-section and each group of longitudinal stress distribution beams are fixed by adopting buckles.
The combined support for reinforcing the bridge arch ring sleeve arch of the river-crossing bridge is suitable for reinforcing the bridge arch ring sleeve arch of the river-crossing bridge, which has deep water level, is provided with a rock surface on the surface of a river bed and needs to ensure normal water flow of the river. The construction temporary bridge is partially erected by utilizing the transverse stress distribution Liang Xuantiao, pouring of a foundation of the construction temporary bridge is omitted, meanwhile, labor for specially erecting the construction temporary bridge is reduced, the construction temporary bridge is not easy to wash down in water rising, and a temporary storage platform can be provided for rod pieces of the full scaffold. Meets the requirements of safety, economy and applicability.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and 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. It is evident that the figures in the following description are only some embodiments of the utility model, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic illustration of a forward bridge layout of an exemplary embodiment of a composite bracket for bridge arch reinforcement construction of a river-crossing bridge;
fig. 2 is a schematic view of the transverse bridge layout of the combined bracket for reinforcement construction of the bridge arch ring sleeve of the river-crossing bridge shown in fig. 1.
Reference numerals illustrate: 1. a foundation; 2. a longitudinal force distribution beam; 3. a middle support structure; 4. a transverse force distribution beam; 5. full scaffold; 6. supporting piers; 7. round tube support; 8. steel cross-linking; 9. a carrier plate; 10. and (3) a protective fence.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary for the purpose of illustrating the present utility model and are not to be construed as limiting the present utility model, and various changes, modifications, substitutions and alterations may be made therein by one of ordinary skill in the art without departing from the spirit and scope of the present utility model as defined by the appended claims and their equivalents.
The terms "center," "longitudinal," "transverse," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like in the description of the present utility model refer to an orientation or positional relationship as indicated on the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "comprise," "include," and any variations thereof, are intended to cover a non-exclusive inclusion. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; 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.
The whole length of a bridge is 269.45m, and the bridge deck width is 9.0m (7.0 m traffic lane+2×1.0m sidewalk and guardrail). The height of the bridge is 13.2 meters, the maximum water depth is about 2.0 meters (9-12 months), the upper part of the bridge is constructed as a hollow type constant-section masonry arch bridge with the net span of 9 holes of about 25.0m, the sagittal span ratio of the bridge is 1/5, the thickness of the main arch ring is 70cm, and the width is 850cm; the lower portion is configured as a gravity abutment with an enlarged base. The original design load grade is: automobile-15.
And the engineering A is to perform outsourcing reinforcement on the foundation, the pier body and the arch ring. Because the water levels of the 2# span and the 3# span are too deep, the surface of the river bed is a rock surface, the normal water flow of the river needs to be ensured, the bridge arch sleeve arch reinforcement construction of the river-crossing bridge is performed, and the full framing method cannot be directly applied.
Aiming at the problems, the embodiment of the utility model provides a combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing bridge. Referring to fig. 1 and 2, a combined bracket for arch reinforcement construction of a bridge arch ring of a river-crossing bridge according to an embodiment of the present utility model includes a plurality of groups of longitudinal stress distribution beams 2 each having two ends respectively mounted on two abutment foundations 1 below the arch ring, a middle support structure 3 for supporting the middle of each group of longitudinal stress distribution beams 2, a plurality of transverse stress distribution beams 4 simultaneously mounted on each group of longitudinal stress distribution beams 2, and a full scaffold 5 mounted on the transverse stress distribution beams 4, wherein the full scaffold 5 is used for supporting templates.
Specifically, each group of the longitudinal stress distribution beams 2 may be single-layer double-row bailey beams. For example, for project a, a single span may employ 4 sets of single-layer double-row bailey beams as the longitudinal force-distributing beams 2. The transverse stress distribution beam 4 is an I-steel distribution beam. For example, for the engineering A, the longitudinal stress distribution beam 2 is paved with a number 10I-steel as the foot pad of the transverse stress distribution beam 4 and the full-hall scaffold 5. The joint of the transverse stress distribution beams 4 and the longitudinal stress distribution beams 2 can be fixed by adopting U-shaped buckles.
The middle supporting structure 3 comprises a plurality of supporting piers 6 which are distributed transversely, round tube supports 7 which are fixed on the supporting piers 6, and steel cross-links 8 which are simultaneously arranged on the round tube supports 7. The steel crosstie 8 can be a double-spliced I-steel crosstie. For example, for project a, the steel crosstie 8 may be a double-spliced No. 45 i-steel crosstie. The joint of the steel cross-connection 8 and each group of longitudinal stress distribution beams 2 can be fixed by adopting a U-shaped buckle.
One end of each transverse stress distribution beam 4 located at the same side extends out of the same nearest group of longitudinal stress distribution beams 2 by not less than a preset distance, and for the view of fig. 2, the left end of each transverse stress distribution beam 4 extends out of the leftmost group of longitudinal stress distribution beams 2 by not less than a preset distance, for example, for the project a, the left end of each transverse stress distribution beam 4 extends out of the leftmost group of longitudinal stress distribution beams 1.6 meters. The part of each transverse stress distribution beam 4 extending out of the same nearest group of longitudinal stress distribution beams 2 is paved with bearing plates 9, and guard rails 10 are arranged to form a construction bridge. The bearing plate 9 can be a bamboo raft plate, and the construction bridge can be used for constructors to walk and temporarily place a small amount of materials.
The erection method of the combined bracket for bridge arch ring sleeve arch reinforcement construction of the river-crossing bridge can adopt the following steps:
1) And measuring and lofting according to the design distribution diagram, and determining the position of each group of longitudinal stress distribution beams and the position of each support pier.
2) Hoisting the hollow cement pipe to the position of the supporting pier, pouring concrete in time to fill the hollow cement pipe, and finally setting to form the supporting pier; and measuring the horizontal elevation of each supporting pier, and determining the supporting height of the corresponding round pipe according to the horizontal elevation of each supporting pier.
For example, for engineering A, a hollow cement pipe with the diameter of 1.5 meters and the length of 2 meters can be hoisted to the position of a supporting pier, then concrete is poured in time to fill the cement pipe, and pouring is stopped after the cement pipe reaches the top surface. After the concrete is final set, the horizontal elevation is measured to determine the height of the required tubular support for processing.
3) And (5) carrying out circular tube support and steel cross-connection processing, and then carrying out field installation. The round tube support and the steel cross-connection are transported to the site for direct installation after the processing of the processing plant is completed.
4) Hoisting and reinforcing the assembled longitudinal stress distribution beams, then paving the transverse stress distribution beams, wherein the distance between the transverse stress distribution beams corresponds to the distance between the full scaffold and the longitudinal stress distribution beams, and fixing the transverse stress distribution beams and the longitudinal stress distribution beams at the joints by adopting buckles.
In the middle support structure construction process, the longitudinal stress distribution beams can be synchronously assembled on the shore, and the longitudinal stress distribution beams are uniformly hoisted after the assembly is completed. The longitudinal stress distribution beams are required to be reinforced in time after being installed, for example, the joints of the steel crossties and the longitudinal stress distribution beams of each group are fixed by adopting U-shaped buckles, so that the stability of the longitudinal stress distribution beams is ensured.
The transverse stress distribution beams can be laid along 90 cm, so that the transverse stress distribution beams correspond to the gap between the scaffolds in full hall. After the transverse stress distribution beams are paved, the joints of the transverse stress distribution beams and the longitudinal stress distribution beams of each group are fixed by adopting U-shaped buckles, so that the stability of the transverse stress distribution beams is ensured.
5) And laying bearing plates at the parts, extending out of the same nearest group of longitudinal stress distribution beams, of the transverse stress distribution beams by no less than a preset distance, and arranging protective fences to form a construction temporary bridge.
6) And (5) building a full-hall scaffold, and paving bamboo raft plates on the transverse stress distribution beams before building the full-hall scaffold as a working platform.
Before the full-hall scaffold is erected, a bamboo raft board is paved as a working platform, and then the full-hall scaffold is erected. The setting up of full hall scaffold is gradually advancing from the one end of horizontal atress distributing beam that keeps away from construction temporary bridge to the other end, to the view of fig. 2, then is gradually advancing from horizontal atress distributing beam right-hand member left-hand member, remains the bamboo raft protection when setting up full hall scaffold.
The combined support for bridge arch ring sleeve arch reinforcement construction of the river-crossing bridge is suitable for bridge arch ring sleeve arch reinforcement construction of the river-crossing bridge, which has deep water level, is provided with a rock surface on the surface of a river bed and needs to ensure normal water flow of the river. The construction temporary bridge is partially erected by utilizing the transverse stress distribution Liang Xuantiao, pouring of a foundation of the construction temporary bridge is omitted, meanwhile, labor for specially erecting the construction temporary bridge is reduced, the construction temporary bridge is not easy to wash down in water rising, and a temporary storage platform can be provided for rod pieces of the full scaffold. Meets the requirements of safety, economy and applicability.
Claims (5)
1. A combination support that is used for crossing river bridge arch ring cover arch reinforcement construction, its characterized in that: the full-hall scaffold is used for supporting templates; one end of each transverse stress distribution beam, which is positioned at the same side, extends out of the same nearest group of longitudinal stress distribution beams to be not smaller than a preset distance, a bearing plate is paved on the part, extending out of the same nearest group of longitudinal stress distribution beams, of each transverse stress distribution beam, and a protective rail is arranged to form a construction temporary bridge; the middle supporting structure comprises a plurality of supporting piers which are distributed transversely, round tube supports which are fixed on the supporting piers, and steel cross joints which are simultaneously arranged on the round tube supports.
2. The combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing channel according to claim 1, wherein: each group of longitudinal stress distribution beams are single-layer double-row bailey beams.
3. The combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing channel according to claim 2, wherein: the transverse stress distribution beam is an I-steel distribution beam.
4. The composite bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing bridge according to claim 3, wherein: the joint of the transverse stress distribution beams and each group of longitudinal stress distribution beams is fixed by a buckle.
5. The combined bracket for bridge arch ring sleeve arch reinforcement construction of a river-crossing channel according to claim 2, wherein: the steel cross section is a double-spliced I-steel cross section, and the joint of the steel cross section and each group of longitudinal stress distribution beams is fixed by adopting a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635496.0U CN220079789U (en) | 2023-06-26 | 2023-06-26 | Combined support for bridge arch ring sleeve arch reinforcement construction of river-crossing bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321635496.0U CN220079789U (en) | 2023-06-26 | 2023-06-26 | Combined support for bridge arch ring sleeve arch reinforcement construction of river-crossing bridge |
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| Publication Number | Publication Date |
|---|---|
| CN220079789U true CN220079789U (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321635496.0U Active CN220079789U (en) | 2023-06-26 | 2023-06-26 | Combined support for bridge arch ring sleeve arch reinforcement construction of river-crossing bridge |
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| Country | Link |
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| CN (1) | CN220079789U (en) |
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2023
- 2023-06-26 CN CN202321635496.0U patent/CN220079789U/en active Active
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