CN215329322U - Light-duty assembled pier suitable for small-tonnage hoist and mount - Google Patents
Light-duty assembled pier suitable for small-tonnage hoist and mount Download PDFInfo
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- CN215329322U CN215329322U CN202121718114.1U CN202121718114U CN215329322U CN 215329322 U CN215329322 U CN 215329322U CN 202121718114 U CN202121718114 U CN 202121718114U CN 215329322 U CN215329322 U CN 215329322U
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Abstract
The utility model discloses a light-weight fabricated pier suitable for small-tonnage hoisting, which comprises a prestressed concrete pipe pile, a prefabricated reinforced concrete bearing platform, a hollow pier column and a prefabricated capping beam which are sequentially connected from bottom to top; the height of the longitudinal section of the prefabricated capping beam is gradually increased from the end part of the prefabricated capping beam to the middle part of the prefabricated capping beam, wing plates respectively extend out of two sides of the top of the prefabricated capping beam along the width direction, and support ribs are arranged in the middle of the bottom surfaces of the wing plates; the hollow pier column is connected with the prefabricated capping beam through a grouting sleeve; the hollow pier column is connected with the prefabricated reinforced concrete bearing platform through post-cast concrete; the prestressed concrete pipe pile is connected with the prefabricated reinforced concrete bearing platform through grouting. The utility model solves the problems of large hoisting weight and poor adaptability to field construction conditions of the existing fabricated pier by improving the structure of the prefabricated capping beam and adopting the pier column of the hollow pier.
Description
Technical Field
The utility model relates to the technical field of fabricated bridges, in particular to a light fabricated pier suitable for small-tonnage hoisting.
Background
Since the last century, a series of assembly type upper structure general drawings are issued in the industries of highways, common railways and high-speed railways in China, the structural forms include T-beams, small box beams, full-span box beams, combination beams and the like, and the quality and pace of bridge construction in China are greatly improved. At present, the key for improving the assembly rate of bridge structures in China lies in developing the assembly of bridge substructure structures.
China carries out a series of explorations in the prefabrication and assembly of bridge substructure, and certain achievements are obtained. The typical representation is equivalent cast-in-place type, namely, according to the size of a conventional cast-in-place construction pier, the prefabricated hoisting construction of the assembly type pier is realized through proper component disassembly and connecting joints, most of reinforcement and concrete construction work is finished in a factory, the environment-friendly effect is good, the structural sizes of pier studs and cover beams of the equivalent cast-in-place assembly type pier are equivalent to the size of the conventional cast-in-place construction pier, the equivalent cast-in-place assembly type pier is suitable for urban bridge construction with better road conditions, but for the field construction environment, the hoisting weight of the equivalent cast-in-place assembly type pier is large, the transportation is extremely inconvenient, and the adaptability to the field construction conditions is poor.
In view of the above, it is necessary to provide a lightweight fabricated pier suitable for small tonnage hoisting to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a light assembly type pier suitable for small-tonnage hoisting, and aims to solve the problems that the existing assembly type pier is heavy in hoisting weight and poor in adaptability to field construction conditions.
In order to achieve the purpose, the utility model provides a light assembly type pier suitable for small-tonnage hoisting, which comprises a prestressed concrete pipe pile, a prefabricated reinforced concrete bearing platform, a hollow pier column and a prefabricated capping beam which are sequentially connected from bottom to top;
the height of the longitudinal section of the prefabricated capping beam is gradually increased from the end part of the prefabricated capping beam to the middle part of the prefabricated capping beam, a first preformed hole is formed in the middle of the bottom surface of the prefabricated capping beam, a grouting sleeve is arranged inside the first preformed hole, wing plates respectively extend out of two sides of the top of the prefabricated capping beam along the width direction, and a support rib is arranged in the middle of the bottom surface of each wing plate; the top of the prefabricated reinforced concrete bearing platform is provided with a preformed groove, and the bottom of the prefabricated reinforced concrete bearing platform is provided with a plurality of second preformed holes; the hollow pier column is connected with the prefabricated capping beam through the grouting sleeve; the bottom of the hollow pier column extends into the reserved groove, and the hollow pier column is connected with the prefabricated reinforced concrete bearing platform through post-cast concrete; the prestressed concrete tubular pile stretches into the second preformed hole, and the prestressed concrete tubular pile is connected with the prefabricated reinforced concrete bearing platform through grouting.
Preferably, the both ends at the top of prefabricated bent cap transversely are provided with the roof beam body stopper respectively, prefabricated bent cap with the top of roof beam body stopper all is provided with the precast beam support, the top surface of precast beam support is on same horizontal plane.
Preferably, the bottom of the hollow pier column and the connecting section of the prefabricated reinforced concrete bearing platform are also provided with a shear groove.
Preferably, a steel hoop is arranged at a position, close to the prefabricated capping beam, of the hollow pier column.
Preferably, the concrete strength of the hollow pier column is C70-C80.
Preferably, the number of the prestressed concrete pipe piles connected with the prefabricated reinforced concrete bearing platform is 2-9.
Preferably, the end of the prefabricated cover beam is also protruded with a connecting steel bar.
Preferably, the height of the longitudinal section of the prefabricated capping beam is 80-140 cm, the width of the top surface of the prefabricated capping beam is 180-200 cm, and the width of the wing plate is 25-45 cm.
Compared with the prior art, the light assembly type pier suitable for small-tonnage hoisting provided by the utility model has the following beneficial effects:
the utility model provides a light-weight fabricated pier suitable for small-tonnage hoisting, which comprises a prestressed concrete pipe pile, a prefabricated reinforced concrete bearing platform, a hollow pier column and a prefabricated capping beam which are sequentially connected from bottom to top; the height of the longitudinal section of the prefabricated bent cap is gradually increased from the end part to the middle part, wing plates respectively extend out of two sides of the top of the prefabricated bent cap along the width direction, and support ribs are arranged in the middle of the bottom surfaces of the wing plates; the hollow pier column is connected with the prefabricated capping beam through a grouting sleeve; the hollow pier column is connected with the prefabricated reinforced concrete bearing platform through post-cast concrete; the prestressed concrete pipe pile is connected with the prefabricated reinforced concrete bearing platform through grouting. The utility model solves the problems of large hoisting weight and poor adaptability to field construction conditions of the existing fabricated pier by improving the structure of the prefabricated capping beam and adopting the pier column of the hollow pier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall assembly of a lightweight fabricated pier in one embodiment of the utility model;
fig. 2 is a schematic structural view of a prefabricated capping beam in an embodiment of the present invention;
the reference numbers illustrate:
200 of a tubular pile;
a platform 300; a reserve tank 310;
a capping beam 500; a first prepared hole 510; a wing 520; a support rib 530; a beam body stopper 540; a precast beam support 550; connecting the reinforcing bars 560.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to the attached drawings 1-2, the utility model provides a light assembly type pier suitable for small-tonnage hoisting. The light-duty assembled pier comprises a prestressed concrete pipe pile 200, a prefabricated reinforced concrete bearing platform 300, a hollow pier column 400 and a prefabricated capping beam 500 which are sequentially connected from bottom to top.
Wherein the height of the longitudinal section of the precast capping beam 500 is gradually increased from the end to the middle of the precast capping beam 500. Specifically, the end portions of the precast capping beam 500 refer to two end portions near the outermost side in the length direction, the longitudinal section of the precast capping beam 500 is a vertical section of the precast capping beam 500 in the width direction, the longitudinal section height is a height of the vertical section of the precast capping beam 500 in the width direction, and the longitudinal section height of the precast capping beam 500 gradually increases from the two end portions near the outermost side in the length direction to the middle portion of the precast capping beam 500.
First preformed hole 510 has been seted up at the middle part of prefabricated bent cap 500's bottom surface, the inside of first preformed hole 510 is provided with grout sleeve (not shown), the pterygoid lamina 520 has all been stretched out respectively along width direction in prefabricated bent cap 500's top both sides, the middle part position of the bottom surface of pterygoid lamina 520 is equipped with support rib 530.
Specifically, the longitudinal section of the prefabricated capping beam 500 is a vertical section of the prefabricated capping beam 500 along the width direction, the height of the longitudinal section is the height of the prefabricated capping beam 500, the section of the prefabricated capping beam is T-shaped, the height gradually increases from the end part to the middle, slopes are arranged from two ends of the bottom of the prefabricated capping beam 500 to the middle, the extending positions of the wing plates 520 are two sides of the length direction of the top of the prefabricated capping beam 500, the extending direction is along the width direction of the prefabricated capping beam 500, the bearing force of the prefabricated capping beam 500 is increased by the arranged wing plates 520, the support ribs 530 are arranged at the bottom of the wing plates 520 and are connected with two sides of the prefabricated capping beam 500 along the width direction, the support ribs 530 play a role in supporting the wing plates 520, so that the upper part structure borne by the wing plates 520 becomes more stable, and the prefabricated capping beam 500, the wing plates 520 and the support ribs 530 are all integrally arranged.
The top of the prefabricated reinforced concrete bearing platform 300 is provided with a preformed groove 310, and the bottom of the prefabricated reinforced concrete bearing platform 300 is provided with a plurality of second preformed holes (not shown); the hollow pier stud 400 is connected with the prefabricated capping beam 500 through the grouting sleeve; the bottom of the hollow pier stud 400 extends into the preformed groove 310, and the hollow pier stud 400 is connected with the prefabricated reinforced concrete bearing platform 300 through post-cast concrete; prestressed concrete tubular pile 200 stretches into the second preformed hole, just prestressed concrete tubular pile 200 with prefabricated reinforced concrete cushion cap 300 is connected through the grout.
It should be understood that the hollow pier column 400 is formed by a centrifugal forming process, the shape of the hollow pier column 400 can be circular or rectangular, the interior of the hollow pier column is a hollow structure, the concrete strength is C70-C80, the middle position of the top of the prefabricated reinforced concrete bearing platform 300 is provided with the reserved groove 310, the top of the hollow pier column 400 is fixedly connected with the prefabricated capping beam 500 through the grouting sleeve, the bottom of the hollow pier column 400 is fixedly connected with the reserved groove 310 through post-cast concrete, the number of the second reserved holes formed in the bottom of the prefabricated reinforced concrete bearing platform 300 can be selected according to actual conditions, and the top of the prestressed concrete pipe pile 200 extends into the second reserved holes to be fixed through grouting connection.
Further, two ends of the top of the precast capping beam 500 are respectively and transversely provided with a beam body limiting block 540, the tops of the precast capping beam 500 and the beam body limiting block 540 are both provided with precast beam supports 550, and the top surfaces of the precast beam supports 550 are on the same horizontal plane. It should be noted that the beam body limiting blocks 540 are disposed at both ends of the precast capping beam 500, a plurality of precast beam supports 550 are disposed on top of the precast capping beam 500 and the beam body limiting blocks 540, the number of the precast beam supports 550 may be set according to actual needs, the beam body limiting blocks 540 may prevent the beam from falling and the upper structure from moving laterally, and the precast beam supports 550 are important force transfer devices capable of bearing various forces acting on the upper structure and transferring it reliably to devices below, and simultaneously, may be adapted to the rotation angle and displacement of the upper structure, so that the upper structure may be freely deformed without generating additional internal force.
In a preferred embodiment of the present invention, a shear groove (not shown) is further formed at a connection section between the bottom of the hollow pier stud 400 and the precast reinforced concrete cap 300. It should be understood that the shear grooves are formed at the bottom of the pier stud 400 of the hollow pier and extend into the precast reinforced concrete cap 300 to resist the shear force generated by the horizontal displacement and bear part of the horizontal load, and to increase the rigidity of the structure and reduce the lateral displacement of the structure.
Further, a steel anchor ear (not shown) is disposed at a position of the hollow pier stud 400 close to the precast capping beam 500, and the concrete strength of the hollow pier stud 400 is C70-C80. Specifically, the steel hoop is formed by connecting two semicircular steel templates through bolts on a connecting plate, so that the steel hoop is tightly attached to the pier stud 400 of the hollow pier, the steel hoop can change along with the height of the pier stud 400, the adjustability is strong, a certain weight can be borne, the steel hoop is not deformed, and the overall performance of the pier is enhanced by the steel hoop; meanwhile, the strength of the concrete adopted by the material of the hollow pier column 400 can be selected according to actual conditions, but cannot be too small, preferably, the embodiment adopts C80 concrete, the compressive strength of the concrete is high, and the load of the upper structure can be well borne.
As a preferred embodiment of the present invention, the number of the prestressed concrete pipe piles 200 connected to the precast reinforced concrete cap 300 is 2 to 9. It should be understood by those skilled in the art that the prestressed concrete pipe piles 200 are uniformly arranged at the bottom of the prefabricated reinforced concrete bearing platform 300, the number of the prestressed concrete pipe piles 200 arranged on a single prefabricated reinforced concrete bearing platform 300 can be 2-9, preferably, the number of the prestressed concrete pipe piles 200 is set to be 2, 4, 5, 6 or 9, the prestressed concrete pipe piles 200 with different diameters can be selected, the prestressed concrete pipe piles 200 have high bearing capacity, the pile body has good hammering resistance and crack resistance, and the manufacturing cost is low.
As a preferred embodiment of the present invention, the end of the prefabricated capping beam 500 further protrudes with a connecting steel bar 560, the position of the connecting steel bar 560 is arranged on the end surface of the connecting position of two prefabricated capping beams 500, and the adjacent prefabricated capping beams 500 are fixedly connected by the connecting steel bar 560 in a post-cast concrete manner, so as to connect two light-weight fabricated piers together.
Further, the height of the longitudinal section of the prefabricated capping beam 500 is 80-140 cm, the width of the top surface of the prefabricated capping beam 500 is 180-200 cm, and the width of the wing plate 520 is 25-45 cm. Specifically, the two prefabricated capping beams 500 can be transversely connected into a whole through connecting steel bars 560 at the end parts, the structural size of the prefabricated capping beam 500 is greatly optimized compared with that of the conventional cast-in-place capping beam, the conventional cast-in-place capping beam adopts a conventional rectangular cross section and C40 concrete, the height of the cross section is 80-140 cm, the width is 190cm, the length is 435cm, the concrete volume of a single capping beam 500 is 10.2 cubic meters, and the hoisting weight is 26.5 tons. Preferably, the precast capping beam 500 in the embodiment adopts a T-shaped cross section, adopts C60 concrete, has a cross section height of 80-140 cm, that is, the cross section height of the two end portions of the precast capping beam 300 is 80cm, the cross section height of the middle portion of the precast capping beam 300 is 140cm, the width of the top plate is 190cm, the length is 435cm, the width of the wing plate 520 on both sides is 25-45 cm, the rib width of the support rib 530 is 100-140 cm, the concrete square amount of the single precast capping beam 500 is 7.2 cubic meters, and the hoisting weight is 18.7 tons, so that not only is the building material saved, the carbon emission reduced, energy conservation and environmental protection, but also the precast capping beam 500 is lighter in hoisting weight, and has strong adaptability to the area with poor road conditions.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are encompassed by the scope of the present invention.
Claims (8)
1. A light-weight fabricated pier suitable for small-tonnage hoisting comprises a prestressed concrete pipe pile, a prefabricated reinforced concrete bearing platform, a hollow pier column and a prefabricated capping beam which are sequentially connected from bottom to top; the method is characterized in that: the height of the longitudinal section of the prefabricated capping beam is gradually increased from the end part of the prefabricated capping beam to the middle part of the prefabricated capping beam, a first preformed hole is formed in the middle of the bottom surface of the prefabricated capping beam, a grouting sleeve is arranged inside the first preformed hole, wing plates respectively extend out of two sides of the top of the prefabricated capping beam along the width direction, and a support rib is arranged in the middle of the bottom surface of each wing plate; the top of the prefabricated reinforced concrete bearing platform is provided with a preformed groove, and the bottom of the prefabricated reinforced concrete bearing platform is provided with a plurality of second preformed holes; the hollow pier column is connected with the prefabricated capping beam through the grouting sleeve; the bottom of the hollow pier column extends into the reserved groove, and the hollow pier column is connected with the prefabricated reinforced concrete bearing platform through post-cast concrete; the prestressed concrete tubular pile stretches into the second preformed hole, and the prestressed concrete tubular pile is connected with the prefabricated reinforced concrete bearing platform through grouting.
2. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: the two ends of the top of the prefabricated bent cap are respectively and transversely provided with a beam body limiting block, the top of the prefabricated bent cap and the top of the beam body limiting block are respectively provided with a prefabricated beam support, and the top surface of the prefabricated beam support is on the same horizontal plane.
3. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: and a shear groove is also formed at the connecting section of the bottom of the hollow pier column and the prefabricated reinforced concrete bearing platform.
4. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: and a steel hoop is arranged at the position, close to the prefabricated capping beam, of the hollow pier column.
5. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: the concrete strength of the pier column of the hollow pier is C70-C80.
6. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: the prefabricated reinforced concrete bearing platform is connected with the prestressed concrete pipe piles, and the number of the prestressed concrete pipe piles is 2-9.
7. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: the end part of the prefabricated cover beam is also convexly extended with a connecting reinforcing steel bar.
8. The light-weight assembly type pier suitable for small-tonnage hoisting according to claim 1, wherein: the height of the longitudinal section of the prefabricated capping beam is 80-140 cm, the width of the top surface of the prefabricated capping beam is 180-200 cm, and the width of the wing plate is 25-45 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718114.1U CN215329322U (en) | 2021-07-27 | 2021-07-27 | Light-duty assembled pier suitable for small-tonnage hoist and mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718114.1U CN215329322U (en) | 2021-07-27 | 2021-07-27 | Light-duty assembled pier suitable for small-tonnage hoist and mount |
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| Publication Number | Publication Date |
|---|---|
| CN215329322U true CN215329322U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121718114.1U Active CN215329322U (en) | 2021-07-27 | 2021-07-27 | Light-duty assembled pier suitable for small-tonnage hoist and mount |
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| CN (1) | CN215329322U (en) |
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2021
- 2021-07-27 CN CN202121718114.1U patent/CN215329322U/en active Active
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