CN210458919U - Steel-concrete composite beam and concrete pier connecting structure - Google Patents
Steel-concrete composite beam and concrete pier connecting structure Download PDFInfo
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- CN210458919U CN210458919U CN201921286084.4U CN201921286084U CN210458919U CN 210458919 U CN210458919 U CN 210458919U CN 201921286084 U CN201921286084 U CN 201921286084U CN 210458919 U CN210458919 U CN 210458919U
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Abstract
The utility model discloses a connecting structure of a steel-concrete composite beam and a concrete pier, which comprises a connecting component arranged between a composite beam body and a pier; the connecting assembly comprises a steel plate hoop coated outside the pier, a horizontal frame stiffening plate extending into the pier is arranged at the bottom of the steel plate hoop, and a pier main steel bar through hole is reserved on the horizontal frame stiffening plate; the composite beam body bottom plate is provided with a grouting hole and a pier main steel bar through hole in advance, a bottom plate stiffening rib is arranged at the position, corresponding to the pier contour line, of the upper surface of the composite beam body bottom plate, and stiffening plates are welded between the steel plate hoops and the composite beam body bottom plate at intervals. The utility model has the advantages of rational in infrastructure, can effectively improve the atress performance of structure to can guarantee construction safety and engineering quality.
Description
Technical Field
The utility model relates to a steel-concrete combination beam bridge engineering field especially relates to a steel-concrete combination beam and concrete pier connection structure.
Background
The steel-concrete composite beam bridge has the advantages of light dead weight, high rigidity, strong spanning capability and high construction speed as a bridge structure, and has wide development prospect.
For the bridge with small curvature radius and large span, in order to enhance the anti-sliding and anti-overturning stability of the structure and prevent the main beam from climbing and moving, overturning and other phenomena, the middle pier usually adopts a connection mode of pier-beam consolidation. However, the connection mode enhances the pier top hogging moment effect, the bridge deck slab concrete bears tensile stress at the pier top position due to the action of the hogging moment, the bridge deck slab is likely to crack, the durability of the structure is affected, and the composite beam bottom plate is easy to destabilize when in a compressed state, so that the crack control of the bridge deck slab in the pier top hogging moment area and the stability of the steel box beam bottom plate are the key points for controlling the quality of the steel-concrete composite beam bridge.
In order to reduce the secondary effect caused by the self weight and the prestress of the structure and improve the stress state of the structure, the main beam and the bridge pier are often hinged firstly, and then consolidation is carried out after the construction of the upper structure is finished. Therefore, aiming at the structural characteristics of the steel-concrete composite beam bridge, a novel structural system and a construction method are developed, and the construction method has good practical significance for ensuring the construction quality and the safety.
Disclosure of Invention
An object of the utility model is to provide a can improve bridge stress state, guarantee construction safety and quality steel-concrete combination beam and concrete pier connection structure.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the utility model relates to a connecting structure of a steel-concrete composite beam and a concrete pier, which comprises a connecting component arranged between a composite beam body and a pier; the connecting assembly comprises a steel plate hoop coated outside the pier, a horizontal frame stiffening plate extending into the pier is arranged at the bottom of the steel plate hoop, and a pier main steel bar through hole is reserved on the horizontal frame stiffening plate; the composite beam body bottom plate is provided with a grouting hole and a pier main steel bar through hole in advance, a bottom plate stiffening rib is arranged at the position, corresponding to the pier contour line, of the upper surface of the composite beam body bottom plate, and stiffening plates are welded between the steel plate hoops and the composite beam body bottom plate at intervals.
The shear nails arranged on the inner side wall of the steel plate hoop extend into the pier.
The cross section of the pier is of a rectangular structure, and the cross section of the bottom plate stiffening rib is a rectangular frame with the same shape as the cross section of the pier.
The bottom plate stiffening rib is characterized in that a diaphragm plate is arranged at the connecting line position of the centers of two short edges of the bottom plate stiffening rib, and diaphragm plate stiffening ribs are symmetrically welded on two sides of the diaphragm plate.
The utility model has the advantages of rational in infrastructure, can effectively improve the atress performance of structure to can guarantee construction safety and engineering quality.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a sectional view taken along line A-A of FIG. 1.
Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 1.
Detailed Description
As shown in fig. 1 to 5, the connection structure of the steel-concrete composite beam and the concrete pier of the present invention includes a connection assembly disposed between a composite beam body 1 and a pier 2 (the section of the pier 2 is a rectangular structure); the connecting assembly comprises a steel plate hoop 3 coated outside a pier 2, wherein a shear nail 4 arranged on the inner side wall of the steel plate hoop 3 extends into the pier 2 to be connected with the pier 2, as shown in fig. 4; a horizontal frame stiffening plate 5 extending into the pier 2 is arranged at the bottom of the steel plate hoop 3, and as shown in fig. 5, pier main steel bar through holes 5.1 are reserved on the horizontal frame stiffening plate 5; a grouting hole 6.1 and a pier main steel bar perforation 6.2 are reserved on a bottom plate 6 of the combined beam body, as shown in figures 1 and 2, a bottom plate stiffening rib 7 is arranged at a position, corresponding to a pier contour line, on the upper surface of the bottom plate 6 of the combined beam body, when the cross section of a pier 2 is of a rectangular structure, the cross section of the bottom plate stiffening rib 7 is a rectangular frame with the same shape as the cross section of the pier, a diaphragm plate 8 is arranged at a connecting line position of the centers of two short sides of the bottom plate stiffening rib 7, and diaphragm plate stiffening ribs 9 are symmetrically welded on two sides of the diaphragm plate; the stiffening plates 10 are welded between the steel plate hoops 3 and the bottom plate 6 of the combined beam body at intervals, as shown in fig. 3, under normal conditions, the stiffening plates 10 are arranged at intervals of 40 cm.
During construction, connect steel sheet hoop 3 on concrete pier 2 through shear force nail 4, main reinforcement in the concrete pier 2 passes pier main reinforcement perforation 5.1 and the pier main reinforcement perforation 6.2 of reserving on the combination roof beam body bottom plate 6 of reserving on the 3 bottom horizontal frame stiffening plate of steel sheet hoop 5 in proper order and stretches into the internal portion of combination roof beam, through the slip casting hole 6.1 of reserving on the combination roof beam body bottom plate 6 to 3 interior slip casting of steel sheet hoop, reserve reinforcing bar perforation 6.2 as the air vent. After the temporary support is dismantled, a stiffening plate 10 is welded between the steel plate hoop 3 and the bottom plate 6 of the combined beam body, so that the consolidation between the pier and the combined beam body is realized.
Claims (4)
1. A steel-concrete composite beam and concrete pier connecting structure comprises a connecting component arranged between a composite beam body and a pier; the method is characterized in that: the connecting assembly comprises a steel plate hoop coated outside the pier, a horizontal frame stiffening plate extending into the pier is arranged at the bottom of the steel plate hoop, and a pier main steel bar through hole is reserved on the horizontal frame stiffening plate; the composite beam body bottom plate is reserved with grouting holes and pier main steel bar through holes, bottom plate stiffening ribs are arranged on the upper surface of the composite beam body bottom plate corresponding to the pier contour line, and stiffening plates are welded between the steel plate hoops and the composite beam body bottom plate at intervals.
2. The steel-concrete composite girder and concrete pier connection structure according to claim 1, wherein: the shear nails arranged on the inner side wall of the steel plate hoop extend into the pier.
3. The steel-concrete composite girder and concrete pier connection structure according to claim 1, wherein: the cross section of the pier is of a rectangular structure, and the cross section of the bottom plate stiffening rib is a rectangular frame with the same shape as the cross section of the pier.
4. The steel-concrete composite girder and concrete pier connection structure according to claim 3, wherein: the bottom plate stiffening rib is characterized in that a diaphragm plate is arranged at the connecting line position of the centers of two short edges of the bottom plate stiffening rib, and diaphragm plate stiffening ribs are symmetrically welded on two sides of the diaphragm plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286084.4U CN210458919U (en) | 2019-08-09 | 2019-08-09 | Steel-concrete composite beam and concrete pier connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921286084.4U CN210458919U (en) | 2019-08-09 | 2019-08-09 | Steel-concrete composite beam and concrete pier connecting structure |
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| Publication Number | Publication Date |
|---|---|
| CN210458919U true CN210458919U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921286084.4U Active CN210458919U (en) | 2019-08-09 | 2019-08-09 | Steel-concrete composite beam and concrete pier connecting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622083A (en) * | 2020-05-21 | 2020-09-04 | 大连理工大学 | Device and method for solidifying steel box girder and concrete bridge pier |
| CN114657867A (en) * | 2022-03-31 | 2022-06-24 | 山东省交通规划设计院集团有限公司 | Large-span articulated-rotating-consolidation steel bent cap and construction method |
-
2019
- 2019-08-09 CN CN201921286084.4U patent/CN210458919U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622083A (en) * | 2020-05-21 | 2020-09-04 | 大连理工大学 | Device and method for solidifying steel box girder and concrete bridge pier |
| CN114657867A (en) * | 2022-03-31 | 2022-06-24 | 山东省交通规划设计院集团有限公司 | Large-span articulated-rotating-consolidation steel bent cap and construction method |
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