CN217710298U - Steel shell concrete bent cap - Google Patents
Steel shell concrete bent cap Download PDFInfo
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- CN217710298U CN217710298U CN202220638375.0U CN202220638375U CN217710298U CN 217710298 U CN217710298 U CN 217710298U CN 202220638375 U CN202220638375 U CN 202220638375U CN 217710298 U CN217710298 U CN 217710298U
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Abstract
The utility model provides a steel shell concrete bent cap, including prefabricated bent cap steel-shell, the bent cap steel-shell is hollow structure, and the light concrete is filled in the hollow region cast-in-place of bent cap steel-shell, the top reservation of bent cap steel-shell has a plurality of cast-in-place holes that are used for pouring the light concrete to the inside hollow region of bent cap steel-shell, the bent cap steel-shell bottom corresponds pier stud department and is equipped with the connect the via hole that supplies pier stud upper surface reservation reinforcing bar to pass. The utility model discloses an adopt bent cap box hat outsourcing lightweight concrete's structural design, through making the bent cap box hat at the mill in advance, water lightweight concrete behind the job site, not only effectively alleviate prefabricated bent cap dead weight, convenient transportation, be convenient for hoist and mount, save cast-in-place support, reduce and influence ground traffic, reach green construction purpose, moreover this kind of structural design makes the bent cap box hat undertake tensile stress, lightweight concrete undertakes compressive stress, the atress performance of two kinds of materials of full play steel and concrete, both closely laminate, reach common atress, economic benefits has been improved.
Description
Technical Field
The utility model belongs to the technical field of building engineering, concretely relates to steel-shell concrete bent cap.
Background
The rapid, industrialized, standardized and prefabricated assembly of the bridge is a development trend of green construction of urban bridges. At present, domestic assembled bent caps mainly comprise: the integral assembly type and the segmented assembly type are not applied much because the bridge width prefabricated bent cap is huge and is limited by transportation and hoisting; the cover beam is mainly assembled in sections in engineering, the cover beam is generally divided into two sections or three sections to be prefabricated and hoisted, temporary supports are arranged on two sides, tensioning and installation of steel bundles in the later period are needed, high installation accuracy is needed to guarantee accurate butt joint of the sections of the connected cover beam, construction difficulty is high, and traffic passing time is influenced. Therefore, how to prefabricate quickly, reduce the weight and load of road transportation bridge components, and realize effective and quick installation becomes a difficult problem in the quick design and construction of the bridge at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel-shelled concrete bent cap can solve the partial defect that exists among the prior art at least.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the steel shell concrete bent cap comprises a prefabricated bent cap steel shell, wherein the bent cap steel shell is of a hollow structure, light concrete is filled in a hollow area of the bent cap steel shell in a cast-in-situ mode, a plurality of cast-in-situ holes used for pouring the light concrete into the hollow area inside the bent cap steel shell are reserved in the top of the bent cap steel shell, and connecting through holes for reserved steel bars on the upper surface of a pier column to penetrate through are formed in the bottom of the bent cap steel shell corresponding to the pier column.
Further, the bent cap steel shell comprises a bent cap top plate, a bent cap end plate, a bent cap slope panel and a bent cap bottom plate, the bent cap top plate and the bent cap bottom plate are arranged in parallel, the bent cap end plate and the bent cap slope panel are sequentially connected between the end portions of the same sides of the bent cap top plate and the bent cap bottom plate, the cast-in-place hole is formed in the bent cap top plate, and the connecting through hole is formed in the bent cap bottom plate.
Further, the cast-in-place hole is located at the position where the cushion stone is placed on the top plate of the cover beam.
Furthermore, a plurality of partition plates are arranged in the cover beam steel shell at intervals along the transverse bridge direction, the hollow area in the cover beam steel shell is divided into a plurality of sections by the partition plates, and at least one cast-in-place hole is reserved at the top of each section of the hollow area.
Furthermore, a plurality of T ribs are arranged on the side wall inside the steel shell of the cover beam at intervals, the horizontal sections of the T ribs face the middle part of the steel shell of the cover beam, and the end parts of the vertical sections of the T ribs are welded and fixed on the inner side wall of the steel shell of the cover beam.
Furthermore, the light concrete adopts compensation shrinkage concrete.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The steel shell concrete bent cap provided by the utility model adopts the design of combining steel and concrete, and the bent cap steel shell is prefabricated, processed and assembled, so that the integrity is good, the complexity of the prefabricating process of the prefabricated concrete bent cap is greatly reduced, the prefabricating time of the bent cap is shortened, and the difficulty of prefabricating the bent cap is reduced; meanwhile, the overall weight of the transportation and hoisting of the bent cap is effectively reduced through post-pouring of the light concrete, and the use of large-scale construction equipment can be reduced; in addition, the capping beam steel shell is installed through integral prefabrication, the installation difficulty of a construction site is reduced, temporary support is not needed for fixing, and the site construction cost is saved.
(2) The utility model provides a this kind of steel casing concrete bent cap adopts bent cap steel casing outsourcing light concrete, makes the bent cap steel casing undertake tensile stress, and light concrete undertakes compressive stress, and the atress performance of two kinds of materials of full play steel and concrete, both closely laminate reach common atress, have improved economic benefits.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic elevation view of a bridge pier according to the present invention;
FIG. 2 is a schematic elevation view of a middle box girder shell according to the present invention;
FIG. 3 is a schematic view of the top plate of the cover beam of the steel shell of the present invention;
fig. 4 is a schematic cross-sectional view of the middle bent cap of the present invention.
Description of reference numerals: 1. pier studs; 2. a capping beam; 3. a capping beam top plate; 4. a partition plate; 5. a bent cap end plate; 6. a capping beam slope panel; 7. a cap beam floor; 8. a cast-in-place hole; 9. a capping beam steel shell; 10. light concrete; 11. and a T rib.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, 3 and 4, the embodiment provides a steel shell concrete capping beam, which includes a prefabricated capping beam steel shell 9, where the capping beam steel shell 9 is of a hollow structure, a hollow area of the capping beam steel shell 9 is filled with a lightweight concrete 10 in a cast-in-place manner, a plurality of cast-in-place holes 8 for pouring the lightweight concrete 10 into the hollow area inside the capping beam steel shell 9 are reserved at the top of the capping beam steel shell 9, and a connecting through hole for allowing a reserved steel bar on the upper surface of a pier stud 1 to pass through is formed at a position, corresponding to the pier stud 1, at the bottom of the capping beam steel shell 9.
During construction, prefabricating a cover beam steel shell 9 in a factory, conveying the prefabricated cover beam steel shell 9 to a construction site for hoisting, integrally hoisting the cover beam steel shell 9 to the position of a corresponding pier stud 1 through a hoisting device, adjusting the position of the cover beam steel shell 9 through a crane, aligning reserved steel bars on the upper surface of the pier stud 1 with a connecting through hole of the cover beam steel shell 9, slowly lowering the cover beam steel shell 9 onto the pier stud 1, extending the reserved steel bars on the pier stud 1 into a hollow area of the cover beam steel shell 9 through the connecting through hole, and finishing the installation of the cover beam steel shell 9 when the cover beam steel shell 9 is completely attached to the upper surface of the pier stud 1; after the capping beam steel shell 9 is installed, light concrete 10 is poured into a hollow area inside the capping beam steel shell 9 through a cast-in-place hole 8 in the upper surface of the capping beam steel shell 9, the light concrete 10 is tightly attached to the inner side wall of the capping beam steel shell 9 to form an integral structure of the capping beam 2, and meanwhile, the capping beam 2 and the pier stud 1 are connected into a whole through pouring the light concrete 10 at the joint of the capping beam 2 and the pier stud 1. In the embodiment, the structural design that the cover beam steel shell 9 is wrapped with the lightweight concrete 10 is adopted, so that the cover beam steel shell 9 bears tensile stress, the lightweight concrete 10 bears compressive stress, the stress performance of two materials of steel and concrete is fully exerted, the steel and the concrete are tightly attached to each other, common stress is achieved, and economic benefit is improved.
One specific implementation mode is shown in fig. 2 and 3, the capping steel shell 9 includes a capping top plate 3, a capping end plate 5, a capping slope panel 6 and a capping bottom plate 7, the capping top plate 3 and the capping bottom plate 7 are arranged in parallel, the capping end plate 5 and the capping slope panel 6 are sequentially connected between the same-side ends of the capping top plate 3 and the capping bottom plate 7, the cast-in-place hole 8 is located on the capping top plate 3, and the connecting through hole is located on the capping bottom plate 7. When the capping beam steel shell 9 is prefabricated and assembled, the capping beam steel shell 9 can be integrally transported to a construction site after being welded in a factory, and also can be transported to the construction site in blocks by using various steel components (namely the capping beam top plate 3, the capping beam end plate 5, the capping beam slope panel 6 and the capping beam bottom plate 7) of the capping beam steel shell 9, and welded and assembled at the construction site. In the embodiment, the capping beam steel shell 9 is prefabricated, processed and assembled, the integrity is good, the complexity of a prefabricating process of adopting a precast concrete capping beam is greatly reduced, the capping beam prefabricating time is shortened, and the prefabricating difficulty of the capping beam 2 is reduced; meanwhile, the post-pouring light concrete 10 effectively reduces the overall weight of the transportation and hoisting of the bent cap and reduces the use of large-scale construction machines; in addition, the capping beam steel shell 9 is installed through integral prefabrication, the installation difficulty of a construction site is reduced, temporary support is not needed for fixing, and the site construction cost is saved.
Optionally, the cast-in-place hole 8 is arranged at the position where the pad stone is placed on the cover beam top plate 3, so that the stability of connection between the pad stone and the cover beam 2 is ensured.
Preferably, as shown in fig. 2, a plurality of partition plates 4 are arranged inside the steel shell 9 of the capping beam at intervals along the transverse bridge direction, the partition plates 4 are connected between the top plate 3 of the capping beam and the bottom plate 7 of the capping beam to enhance the pressure bearing capacity of the steel shell 9 of the capping beam, the hollow area inside the steel shell 9 of the capping beam is divided into a plurality of sections by the partition plates 4, and at least one cast-in-place hole 8 is reserved at the top of each hollow area.
Further, as shown in fig. 4, a plurality of T ribs 11 are arranged on the inner side wall of the steel shell 9 of the cover beam at intervals, the horizontal sections of the T ribs 11 face the middle part of the steel shell 9 of the cover beam, and the end parts of the vertical sections of the T ribs 11 are welded and fixed on the inner side wall of the steel shell 9 of the cover beam. In the embodiment, the T rib 11 is used for reinforcing the connection between the cover beam steel shell 9 and the light concrete 10, so that the light concrete 10 poured later is tightly attached to the cover beam steel shell 9, and the purpose of common stress is achieved. Specifically, the light concrete 10 is shrinkage-compensated concrete.
The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (6)
1. A steel shell concrete bent cap which characterized in that: the cover beam steel shell is of a hollow structure, cast-in-place light concrete is filled in a hollow area of the cover beam steel shell, a plurality of cast-in-place holes used for pouring the light concrete to the hollow area inside the cover beam steel shell are reserved in the top of the cover beam steel shell, and connecting through holes for allowing reserved steel bars on the upper surface of a pier column to penetrate through are formed in the bottom of the cover beam steel shell corresponding to the pier column.
2. The steel-shell concrete capping beam as claimed in claim 1, wherein: the bent cap steel shell comprises a bent cap top plate, a bent cap end plate, a bent cap slope panel and a bent cap bottom plate, wherein the bent cap top plate and the bent cap bottom plate are arranged in parallel relatively, the bent cap end plate and the bent cap slope panel are sequentially connected between the end portions of the same sides of the bent cap top plate and the bent cap bottom plate, the cast-in-situ hole is located on the bent cap top plate, and the connecting through hole is located on the bent cap bottom plate.
3. The steel-shell concrete capping beam as claimed in claim 2, wherein: the cast-in-place hole is positioned at the position where the cushion stone is placed on the top plate of the cover beam.
4. The steel-shell concrete capping beam as claimed in claim 1, wherein: a plurality of partition plates are arranged inside the steel shell of the cover beam at intervals along the transverse bridge direction, the hollow area inside the steel shell of the cover beam is divided into a plurality of sections by the partition plates, and at least one cast-in-place hole is reserved at the top of each hollow area.
5. The steel-shell concrete capping beam as claimed in claim 1, wherein: a plurality of T ribs are arranged on the side wall inside the steel shell of the cover beam at intervals, the horizontal sections of the T ribs face the middle of the steel shell of the cover beam, and the end parts of the vertical sections of the T ribs are welded and fixed on the inner side wall of the steel shell of the cover beam.
6. The steel-shell concrete capping beam as claimed in claim 1, wherein: the light concrete adopts compensation shrinkage concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220638375.0U CN217710298U (en) | 2022-03-23 | 2022-03-23 | Steel shell concrete bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220638375.0U CN217710298U (en) | 2022-03-23 | 2022-03-23 | Steel shell concrete bent cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217710298U true CN217710298U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220638375.0U Active CN217710298U (en) | 2022-03-23 | 2022-03-23 | Steel shell concrete bent cap |
Country Status (1)
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|---|---|
| CN (1) | CN217710298U (en) |
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- 2022-03-23 CN CN202220638375.0U patent/CN217710298U/en active Active
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