CN217298628U - Novel steel construction does not have hinge arch bridge hunch foot connection structure - Google Patents
Novel steel construction does not have hinge arch bridge hunch foot connection structure Download PDFInfo
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- CN217298628U CN217298628U CN202123102758.0U CN202123102758U CN217298628U CN 217298628 U CN217298628 U CN 217298628U CN 202123102758 U CN202123102758 U CN 202123102758U CN 217298628 U CN217298628 U CN 217298628U
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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
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Abstract
The utility model provides a novel steel construction does not have hinge arch bridge hunch foot connection structure which characterized in that: the steel framework comprises a base body, wherein the base body comprises a steel framework, horizontal supports, inclined struts and framework steel bars, the steel framework is arranged in a rectangular mode, the plurality of horizontal supports are sleeved on the periphery of the steel framework from top to bottom, the inclined struts are sleeved between the horizontal supports, the framework steel bars are further arranged outside the steel framework, and intervals are reserved between the framework steel bars and the steel framework; the top surface of the base body is provided with an embedded steel plate, the center of the embedded steel plate is provided with a pouring hole, the bottom surface of the embedded steel plate is provided with a stiffening rib, the top end of the framework steel bar is provided with a plurality of stiffening plates in an arrangement manner, and the two ends of the stiffening rib are connected with the stiffening plates at corresponding positions; and a plurality of layers of reinforcing mesh used for enhancing the strength are sleeved outside the framework reinforcing steel bar below the embedded steel plate.
Description
Technical Field
The utility model relates to an arch bridge building field especially relates to a novel steel construction does not have hinge arch bridge hunch foot connection structure.
Background
The steel structure hingeless arch bridge is concise and attractive in shape and clear in stress, but has high requirements on the foundation of the pier of the lower structure, is sensitive to uneven settlement of the foundation and is suitable for areas with good geology. At present, a plurality of medium and high bearing type steel structure hingeless arch bridges are built at home and abroad, and are widely used in urban bridges with high landscape requirements.
When the steel structure hingeless arch bridge is used for an urban bridge, due to the limitation of site conditions, the arch springing node can not be connected with the conventional reserved notch and connecting flange, the connecting point needs to be arranged on the arch support, the transverse rigidity of the arch support is limited, and the arch springing connecting structure needs to be specially designed for increasing the arch springing rigidity and ensuring the transverse stability and safety.
Disclosure of Invention
In order to solve the above problem, the utility model provides a following scheme:
a novel steel structure hingeless arch bridge arch foot connecting structure comprises a base body, wherein the base body comprises a section steel framework, horizontal supports, inclined struts and framework steel bars, the section steel framework is arranged in a rectangular mode, the plurality of horizontal supports are sleeved on the periphery of the section steel framework from top to bottom, the inclined struts are sleeved between the horizontal supports, the framework steel bars are further arranged outside the section steel framework, and intervals are reserved between the framework steel bars and the section steel framework; the top surface of the base body is provided with an embedded steel plate, the center of the embedded steel plate is provided with a pouring hole, the bottom surface of the embedded steel plate is provided with stiffening ribs, the top ends of framework reinforcing steel bars are arranged with a plurality of stiffening plates, and the two ends of each stiffening rib are connected with the stiffening plates at the corresponding positions; and a plurality of layers of reinforcing mesh used for enhancing the strength are sleeved outside the framework reinforcing steel bar below the embedded steel plate.
Further, every shaped steel skeleton all sets up rather than the skeleton reinforcing bar that is close to one side is perpendicular.
Further, the reinforcing mesh is 4 layers.
Further, the top end of the steel skeleton is welded and fixed with the embedded steel plate.
Furthermore, the upper end of the inclined strut is connected with the upper end of the previous horizontal support, and the lower end of the inclined strut is connected with the lower end of the next horizontal support.
The arch bridge is constructed by embedding the profile steel framework in the arch support and the arch support foundation, welding the top of the profile steel framework with the embedded steel plate, then welding the embedded steel plate with the profile steel framework, and connecting the bottom end of the main arch with the embedded steel plate, so that the effective connection of the arch support and the main arch is realized.
The horizontal support and the inclined support are sleeved outside the profile steel framework to ensure the stability of the framework. A layer of framework steel bar with a larger diameter is arranged on the outer side of the framework, and hooping restraint is arranged, so that the strength, the rigidity and the durability of the arch support are enhanced.
The stiffening ribs are arranged on the arch base side of the pre-buried steel plate, and the stiffening plates are arranged on the periphery of the arch foot steel structure, so that the local rigidity of the steel plate is enhanced, and the distortion is prevented. Meanwhile, 4 layers of D12 reinforcing meshes are additionally arranged under the embedded steel plates to enhance the local pressure resistance.
And finally, pouring high-strength micro-expansive concrete in the base body, and extending the main ribs in the arch support into the base body to further enhance the connection between the arch support and the main arch. Meanwhile, welding nails are arranged on the surfaces of the embedded steel plates and the steel skeleton, so that the connection between the concrete and the steel structure is enhanced.
The utility model has the advantages that:
the force transfer path of the structure is optimized, the local stress of the arch springing is improved, and the safety of the structure is improved. Compared with the mode of generally cutting the main arch in the arch support, the arch springing connecting structure has stronger adaptability to the size of the main arch, is convenient to be connected with later-stage engineering, and is favorable for accelerating the construction progress. Compared with the common embedded anchor bolt and the connection mode through the flange, the arch springing structure has the advantages that the strength of the arch springing is enhanced through the profile steel framework, and meanwhile, after the equal-strength welding of the bearing plate and the profile steel structure, the stress of the main arch can be more effectively transferred to the concrete of the arch springing.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
fig. 2 is a sectional view taken along a-a in fig. 1.
1. A profile steel framework; 2. framework steel bars; 3. pre-burying a steel plate; 4. horizontally supporting; 5. bracing; 6. a reinforcing mesh; 7. an arch foundation; 8. an arch support; 9. a main arch; 10. a stiffening plate; 11. a stiffening rib.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1: as shown in figures 1-2 of the drawings,
a novel steel structure hingeless arch bridge arch foot connecting structure comprises a base body, wherein the base body comprises a steel skeleton 1, horizontal supports 4, inclined struts 5 and skeleton reinforcing steel bars 2, the steel skeleton 1 is arranged in a rectangular shape, the periphery of the steel skeleton 1 is sleeved with the horizontal supports 4 from top to bottom, the inclined struts 5 are sleeved between the horizontal supports 4, the skeleton reinforcing steel bars 2 are also arranged outside the steel skeleton 1, and intervals are formed between the skeleton reinforcing steel bars 2 and the steel skeleton 1; the top surface of the matrix is provided with an embedded steel plate 3, the center of the embedded steel plate 3 is provided with a pouring hole, the bottom surface of the embedded steel plate 3 is provided with stiffening ribs 11, the top ends of framework steel bars 2 are arranged with a plurality of stiffening plates 10, and two ends of each stiffening rib 11 are connected with the corresponding stiffening plate 10; the skeleton reinforcing steel bar 2 overcoat below the pre-buried steel sheet 3 is equipped with the reinforcing bar net 6 that the multilayer is used for strengthening intensity.
Further, each steel skeleton 1 all sets up rather than the skeleton reinforcing bar 2 that is close to one side perpendicularly.
Further, the mesh reinforcement 6 is 4 layers.
Further, the top end of the steel skeleton 1 is welded and fixed with the embedded steel plate 3.
Furthermore, the upper end of the inclined strut 5 is connected with the upper end of the previous horizontal support 4, and the lower end of the inclined strut 5 is connected with the lower end of the next horizontal support 4.
When the arch bridge is built, the steel section framework 1 is embedded in the arch support 8 and the arch support foundation 7, the top of the steel section framework 1 is welded with the embedded steel plate 3, and then the embedded steel plate 3 is welded with the arch springing steel structure at the bottom end of the main arch 9, so that the effective connection of the arch support 8 and the main arch 9 is realized.
The horizontal support 4 and the inclined support 5 are sleeved outside the steel skeleton 1 to ensure the stability of the skeleton. A layer of framework steel bar 2 with a larger diameter is arranged on the outer side of the steel framework 1, and hooping restraint is arranged, so that the strength, rigidity and durability of the arch support are enhanced.
The stiffening ribs 11 are arranged on the arch seat side of the embedded steel plates 3, and the stiffening plates 10 are arranged on the periphery of the arch springing steel structure, so that the local rigidity of the embedded steel plates 3 is enhanced, and the distortion is prevented. Meanwhile, 4 layers of D12 reinforcing meshes 6 are additionally arranged below the embedded steel plate 3, so that the local pressure resistance is enhanced.
And finally, pouring high-strength micro-expansion concrete in the base body, and extending the main ribs in the arch support 8 into the base body to further enhance the connection between the arch support 8 and the main arch 9. Meanwhile, welding nails are arranged on the surfaces of the embedded steel plates 3 and the steel skeleton 1, so that connection between concrete and a steel structure is enhanced.
The utility model discloses optimized the structure and passed the force path, improved the local atress of hunch foot, improved the security of structure. Compared with the mode of generally cutting the main arch in the arch support, the arch springing connecting structure has stronger adaptability to the size of the main arch, is convenient to be connected with later-stage engineering, and is favorable for accelerating the construction progress. Compared with the common embedded anchor bolt and the connection mode through the flange, the arch springing structure has the advantages that the strength of the arch springing is enhanced through the profile steel framework, and meanwhile, after the equal-strength welding of the bearing plate and the profile steel structure, the stress of the main arch can be more effectively transferred to the concrete of the arch springing.
Finally, it should be noted that the above-mentioned embodiments illustrate only specific embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention should be considered as within the scope of the present invention.
Claims (5)
1. The utility model provides a novel steel construction does not have hinge arch bridge arch foot connection structure which characterized in that: the steel framework comprises a base body, wherein the base body comprises a steel framework, horizontal supports, inclined struts and framework steel bars, the steel framework is arranged in a rectangular mode, the plurality of horizontal supports are sleeved on the periphery of the steel framework from top to bottom, the inclined struts are sleeved between the horizontal supports, the framework steel bars are further arranged outside the steel framework, and intervals are reserved between the framework steel bars and the steel framework; the top surface of the base body is provided with an embedded steel plate, the center of the embedded steel plate is provided with a pouring hole, the bottom surface of the embedded steel plate is provided with stiffening ribs, the top ends of framework reinforcing steel bars are arranged with a plurality of stiffening plates, and the two ends of each stiffening rib are connected with the stiffening plates at the corresponding positions; and a plurality of layers of reinforcing mesh used for enhancing the strength are sleeved outside the framework reinforcing steel bar below the embedded steel plate.
2. The arch springing connecting structure of the novel steel-structured hingeless arch bridge, as claimed in claim 1, wherein: every shaped steel skeleton all sets up rather than the skeleton reinforcing bar that is close to one side is perpendicular.
3. The arch springing connecting structure of the novel steel-structured hingeless arch bridge, as claimed in claim 1, wherein: the reinforcing mesh is 4 layers.
4. A novel arch springing connecting structure of steel structure hingeless arch bridge as claimed in claim 1, wherein: and the top end of the profile steel framework is welded and fixed with the embedded steel plate.
5. A novel arch springing connecting structure of steel structure hingeless arch bridge as claimed in claim 1, wherein: the upper end of the inclined strut is connected with the upper end of the previous horizontal strut, and the lower end of the inclined strut is connected with the lower end of the next horizontal strut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102758.0U CN217298628U (en) | 2021-12-08 | 2021-12-08 | Novel steel construction does not have hinge arch bridge hunch foot connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123102758.0U CN217298628U (en) | 2021-12-08 | 2021-12-08 | Novel steel construction does not have hinge arch bridge hunch foot connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217298628U true CN217298628U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123102758.0U Active CN217298628U (en) | 2021-12-08 | 2021-12-08 | Novel steel construction does not have hinge arch bridge hunch foot connection structure |
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| CN (1) | CN217298628U (en) |
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2021
- 2021-12-08 CN CN202123102758.0U patent/CN217298628U/en active Active
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