CN217733725U - Bent cap and hollow pile connection structure with dovetail type mounting hole - Google Patents

Abstract

The utility model discloses a bent cap and hollow pile connection structure with dovetail type mounting hole, the bent cap is reinforced concrete prefabricated construction, the mounting hole is seted up in advance to inside, the mounting hole is narrow cylinder in the middle of wide from top to bottom, the section demonstrates the dovetail, be equipped with core filling tray and steel reinforcement cage in the hollow pile, core filling tray fixed connection is in the hollow pile, the steel reinforcement cage comprises vertical reinforcing bar and the spiral reinforcement ligature who encloses in the vertical reinforcing bar outside, the lower part is as an organic whole with core filling tray welding, the upper portion socket joint is in the mounting hole of bent cap, through pouring core concrete and making whole device connect into whole to back in mounting hole and the hollow pile cavity. Narrow cylindrical shape in the middle of wide about the bent cap trompil demonstrates, and the section shape is like the forked tail, can buckle each other when the atress warp between post-cast concrete and the precast concrete, has strengthened the combination dynamics of new and old concrete, has increased the anti shearing bearing capacity of connecting for the wholeness of structure, security are all higher.

Description

Bent cap and hollow pile connection structure with dovetail type mounting hole

Technical Field

The utility model relates to a bridge structures field, concretely relates to bent cap and hollow pile connection structure with dovetail mounting hole.

Background

With the rapid development of highways in China, how to finish the construction of bridges in an efficient, high-quality, economic and environment-friendly manner in the construction of highway bridges becomes a problem which is always concerned by project builders, which promotes the rapid development of bridge industrialization. How can assemble substructure fast, when guaranteeing connected node safe and reliable, reduce the loaded down with trivial details work load of artifical scene, the turnover uses the accessory, reduces the consumptive material, and the realization bridge substructure that the polylith was saved combines into whole, becomes the important and important thing that impels the full assembly ization of bridge structures development.

The conventional assembly structure connection node has the following disadvantages:

the open pores of the bent cap are mostly cylindrical straight cylinders, so that the prefabricated structure is convenient to prefabricate, but the prefabricated structure is not tightly connected with post-cast concrete, cracks occur and other risks exist;

in order to arrange the connecting steel bars of the upper and lower part structures, pile foundation longitudinal steel bars with certain length need to be reserved, and in order to pour the hole concrete conveniently, the lower part pile foundation is required to be a solid pile, so that the prefabrication and transportation hoisting difficulty is increased, and unnecessary material consumption is increased;

when the capping beam is aligned with the pile, manual righting is needed or a lot of additional auxiliary equipment is added, accurate alignment cannot be achieved, alignment difficulty is high, and auxiliary equipment is inconvenient to transfer;

the post-cast concrete is easy to have the problem of slurry leakage, the effect of the outer vertical surface is influenced, and the post-cast concrete is not energy-saving and environment-friendly.

SUMMERY OF THE UTILITY MODEL

For solving and proposing among the above-mentioned background art guaranteeing that the bridge structure wholeness is good, the security is high under the prerequisite of good reliability, realize prefabricated hollow pile and upper portion bent cap high-speed joint, reduce on-the-spot manual work volume, convenient cyclic utilization auxiliary assembly reduces the consumptive material, improves the generation efficiency, and is energy-concerving and environment-protective, the utility model provides a bent cap and hollow pile connection structure with dovetail type mounting hole.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize:

the utility model provides a bent cap and hollow pile connection structure with dovetail type mounting hole, the bent cap is reinforced concrete prefabricated construction, and the inside mounting hole of seting up in advance, the mounting hole is narrow cylinder in the middle of wide from top to bottom, and the section demonstrates the dovetail, be equipped with core filling tray and steel reinforcement cage in the hollow pile, core filling tray fixed connection is in the hollow pile, the steel reinforcement cage comprises vertical reinforcing bar and the spiral reinforcement ligature of enclosing in the vertical reinforcing bar outside, and the lower part is as an organic whole with core filling tray welding, and upper portion socket joint in the mounting hole of bent cap makes whole device connect into an entirety through to back pouring core concrete in mounting hole and the hollow pile cavity.

The utility model discloses a further technique:

preferably, the mounting hole edge of bent cap below is equipped with the retaining ring, the retaining ring is reinforced concrete ring column structure, and the internal diameter is a bit bigger than the hollow pile external diameter of treating the connection, is located bent cap lower surface and hollow pile outer lane, establishes embedded steel and is connected as an organic whole and precast forming in the same period with the bent cap in the interior.

Preferably, the side wall of the top of the hollow pile is provided with a temporary hoop, the inner diameter of the temporary hoop is equal to the outer diameter of the hollow pile, and the top of the temporary hoop is propped against the lower edge of the retainer ring.

Preferably, be equipped with the rubber packing ring between interim staple bolt and the retaining ring, the rubber packing ring is the ring form rubber circle, and the internal diameter is with the hollow pile external diameter, and the external diameter is with interim staple bolt semicircle annular roof external diameter, overlaps at the hollow pile outer wall.

Preferably, interim staple bolt comprises two the same semicircle staple bolt subassemblies, and semicircle staple bolt subassembly contains a semicircular arc curb plate, a plurality of side direction stiffening rib, a semicircle annular roof and two vertical jam plates and constitutes, sets up a plurality of bolt mounting holes on the vertical jam plate, and the bolt is through the bolt mounting hole on the vertical jam plate with two semicircle staple bolt subassemblies set up into a circular shape interim staple bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a bent cap and hollow pile connection structure with dovetail type mounting hole, narrow cylindrical shape in the middle of its bent cap trompil demonstrates about wide, and section shape is like the forked tail, can buckle each other when the atress warp between post-cast concrete and the precast concrete, has strengthened the combination dynamics of new and old concrete, has increased the anti shearing bearing capacity of connecting for wholeness, the security of structure are all higher.

This dovetail device's substructure convenient to hollow pile and bent cap high-speed joint can directly use the standardized prefabricated hollow pile of producer batch production, need not to reserve the reinforcing bar at the pile head, need not on-the-spot system stake, need not to use solid pile, and the pre-installation hollow pile transports on-the-spot back, can directly insert at its cavity puts the steel reinforcement cage, pours the concrete and accomplishes the connection, can realize batch production, and has reduced transportation hoist and mount cost, and the on-the-spot installation is quick convenient, energy-concerving and environment-protective.

When the on-site precast bent cap installation was to the stake position, owing to set up the retaining ring that the diameter is a bit bigger than the hollow pile external diameter in its surperficial mounting hole position, can directly aim at the pile bolck and hang and put, light realization retaining ring cutting ferrule live pile head need not artifical rightting, also must not increase a lot of extra large-scale auxiliary assembly, greatly reduced hoist and mount the counterpoint degree of difficulty, avoided counterpoint auxiliary assembly's use.

The temporary hoop is adopted to attach the rubber gasket to the check ring, so that the gap between the check ring and the hollow pile is sealed, and the problem of slurry leakage of post-cast concrete through the gap is solved; the temporary hoop is formed by connecting two groups of semicircular hoop components through bolts, is simple and easy to operate in mounting and dismounting, can be circularly used, avoids the use of a large number of templates of cast-in-place concrete, saves resources and reduces energy consumption.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and 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 these drawings without creative efforts;

FIG. 1 is a schematic view of the overall appearance of the present invention;

fig. 2 is a schematic elevation view of the present invention;

FIG. 3 is an exploded view of the components of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is the utility model discloses interim staple bolt subassembly schematic diagram.

Numbers in the above figures: the method comprises the following steps of 1-hollow pile, 2-capping beam, 3-check ring, 4-steel reinforcement cage, 5-mounting hole, 6-temporary hoop, 7-rubber gasket, 8-core filling tray, 9-semicircular arc side plate, 10-lateral stiffening rib, 11-semicircular annular top plate, 12-vertical locking plate, 13-bolt mounting hole and 14-bolt.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

A bent cap and hollow pile connecting structure with a dovetail-shaped mounting hole is composed of a hollow pile 1, a bent cap 2, a retainer ring 3, a reinforcement cage 4, a mounting hole 5, a temporary hoop 6, a rubber gasket 7, a core filling tray 8 and post-cast concrete. The hollow pile is connected with the capping beam into a whole through a reinforcement cage, a core filling tray and post-cast concrete.

The hollow pile 1 is a standard type hollow concrete prefabricated hollow pile, can be prefabricated in batches in factories, can also be directly purchased from manufacturers for producing the prefabricated hollow pile, is transported to a project site, constructs a pile foundation to a designed elevation, and can adopt a pile planting or pile pressing mode, but is not limited to the mode.

The bent cap 2 is prefabricated in a factory, mounting holes 5 which are wide at the upper part and wide at the lower part and narrow at the middle part are arranged according to design requirements, and the concrete annular retainer ring 3 and the bent cap 2 are prefabricated into a whole in the factory at the same time.

Install interim staple bolt 6 near pile bolck position, two interim staple bolt subassemblies adopt bolt 14 to be fixed temporarily earlier, need not fixed too tightly, establish rubber packing ring 7 through the pile bolck cover in interim staple bolt top, then aim at 1 position hoist and mount bent cap 2 of hollow pile, let retaining ring 3 cover in the pile bolck outer lane, the position of readjustment interim staple bolt 6, make rubber packing ring 7 hug closely retaining ring 3, packing ring 7 is hugged closely to two semicircle annular roof 11 of interim staple bolt 6, bolt 14 is screwed up after the position is decided, make two interim staple bolt subassemblies combine closely.

Manufacturing a steel reinforcement cage 4 and a core filling tray 8, welding the core filling tray 8 with the steel reinforcement cage 4, integrally hoisting the steel reinforcement cage 4 and the core filling tray 8 from a mounting hole 5 at the top of a cover beam 5 until the core filling tray 8 reaches a designed position in an empty bin of a hollow pile 1, after the position of the steel reinforcement cage 4 is adjusted, pouring core filling concrete from the top of the mounting hole 5, stirring, compacting, maintaining and forming, finally, connecting the whole device into an effective whole, and realizing high safety and good integrity, wherein the operation process is simple and easy to implement, and a template does not need to be dismantled. In addition, after the integral device is formed, the temporary hoop 6 can be detached and recycled, so that the utilization efficiency is improved, the material loss is reduced, and the effects of energy conservation and environmental protection are realized.

The utility model discloses a theory of operation and concrete flow:

firstly, completing construction of a factory prefabricated hollow pile on a site foundation, then hoisting a welded reinforcement cage and a core filling tray to enter a designed elevation in an empty bin of the prefabricated hollow pile, then sleeving a rubber gasket near the pile top, installing a temporary hoop, hoisting and installing a cover beam and a retainer ring which are prefabricated into a whole by a factory to sleeve the reinforcement cage, adjusting the positions of the temporary hoop and the rubber gasket to enable the upper surface of the temporary hoop to be tightly attached to the lower surface of the retainer ring, then fixing the temporary hoop and screwing a bolt, finally pouring core filling concrete in the cavity, and maintaining and forming. After post-cast concrete reaches intensity, interim staple bolt can be pulled down and circulate the turnover and use.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The embodiment described in the present invention is only a description of the preferred embodiment of the present invention, and is not a limitation to the concept and scope of the present invention, and without departing from the design concept of the present invention, the technical content claimed in the present invention is fully described in the claims.

Claims (5)

1. The utility model provides a bent cap and hollow pile connection structure with dovetail mounting hole, the bent cap is reinforced concrete prefabricated construction, and inside sets up the mounting hole in advance, its characterized in that: the mounting hole is a cylinder which is wide from top to bottom and narrow in the middle, the section presents a dovetail shape, a core filling tray and a steel reinforcement cage are arranged in the hollow pile, the core filling tray is fixedly connected in the hollow pile, the steel reinforcement cage is formed by binding vertical steel bars and spiral steel bars which surround the outer sides of the vertical steel bars, the lower portion of the steel reinforcement cage is welded with the core filling tray into a whole, the upper portion of the steel reinforcement cage is inserted in the mounting hole of the cover beam, and the whole device is connected into a whole by post-pouring core concrete into the mounting hole and the hollow pile cavity.

2. A capping beam to hollow pile joint structure having dovetail-shaped mounting holes as claimed in claim 1, wherein: the utility model discloses a hollow pile is characterized in that the mounting hole edge of bent cap below is equipped with the retaining ring, the retaining ring is reinforced concrete ring form cylinder structure, and the internal diameter is a bit bigger than the hollow pile external diameter of treating the connection, is located bent cap lower surface and hollow pile outer lane, establishes embedded steel and is connected as an organic whole and precast forming in the same period with the bent cap in the interior.

3. A capping beam to hollow pile joint structure having dovetail-shaped mounting holes as claimed in claim 2, wherein: the side wall of the top of the hollow pile is provided with a temporary hoop, the inner diameter of the temporary hoop is equal to the outer diameter of the hollow pile, and the top of the temporary hoop is propped against the lower edge of the check ring.

4. A capping beam to hollow pile joint structure having dovetail-shaped mounting holes as claimed in claim 3, wherein: be equipped with the rubber packing ring between interim staple bolt and the retaining ring, the rubber packing ring is the ring form rubber circle, and the internal diameter is with the hollow pile external diameter, and the external diameter is with interim staple bolt semicircle annular roof external diameter, overlaps at the hollow pile outer wall.

5. A capping beam to hollow pile joint structure having dovetail-shaped mounting holes as claimed in claim 3, wherein: temporary hoop comprises two the same semicircle staple bolt subassemblies, and semicircle staple bolt subassembly contains a semi-circular arc curb plate, a plurality of side direction stiffening rib, a semicircle annular roof and two vertical jam plates and constitutes, sets up a plurality of bolt mounting holes on the vertical jam plate, and the bolt is through the bolt mounting hole on the vertical jam plate with two semicircle staple bolt subassemblies set up into a circular shape temporary hoop.

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