CN215210461U

CN215210461U - Concrete-encased arch foot structure of concrete-filled steel tube arch bridge

Info

Publication number: CN215210461U
Application number: CN202021382206.2U
Authority: CN
Inventors: 安俊杰
Original assignee: Chengdu Angu Construction Technology Development Co ltd
Current assignee: Chengdu Angu Construction Technology Development Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-12-17
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a steel pipe concrete encircles bridge outsourcing concrete and encircles foot structure relates to concrete and encircles bridge outsourcing concrete and encircle foot technical field. This steel pipe concrete encircles bridge outsourcing concrete and encircles foot structure, including concrete arch sole seat, fixed connection below the concrete arch sole seat is subaerial, the rectangle recess has been seted up to concrete arch sole seat, a rectangle spout has all been seted up in two walls around the rectangle recess, be equipped with portable regulation hunch foot device in the concrete arch sole seat, this steel pipe concrete arch bridge outsourcing concrete arch foot structure, the rotation through T shape connecting rod drives the rotation of mixing the earth connecting block, and the angle of hunch foot can be adjusted in the rotation of mixing the earth connecting block, and through the angle of adjusting hunch foot, the fixed structure of contrast tradition, this structure can carry out the installation to mixing the earth connecting block at different angles to increased the flexibility of equipment, reduced the degree of difficulty of installation, improved work efficiency.

Description

Concrete-encased arch foot structure of concrete-filled steel tube arch bridge

Technical Field

The utility model relates to a concrete encircles bridge outsourcing concrete and encircles foot technical field, specifically is steel pipe concrete encircles bridge outsourcing concrete and encircles foot structure.

Background

In the traditional steel pipe concrete arch springing, a steel pipe is directly inserted into arch springing concrete, and the friction force between the steel pipe and the concrete is utilized to transmit the strong axial force of an arch rib to the arch springing concrete.

Under the background of rapid traffic development, the concrete-encased arch springing of the concrete-encased steel tube arch bridge becomes an important part, but the concrete-encased arch springing of the existing concrete-encased steel tube arch bridge has poor flexibility and higher difficulty in installation due to the adoption of a fixed structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel pipe concrete encircles bridge outsourcing concrete and encircles foot structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the concrete arch foot base is fixedly connected to the ground, a rectangular groove is formed in the concrete arch foot base, a rectangular sliding groove is formed in each of the front wall and the rear wall of the rectangular groove, a movable adjusting arch foot device is arranged in the concrete arch foot base and comprises two concrete arch feet, a first circular sleeve ring is fixedly connected to the front surface and the rear surface of each of the two concrete arch feet, a sliding rod is fixedly connected to the back-leaving surface of each of the four first circular sleeve rings, the four sliding rods are slidably connected in the rectangular sliding grooves and penetrate through the surface of the concrete arch foot base, a second circular sleeve ring is movably connected to the outer surface of each of the four sliding rods, a threaded hole is formed in each of the four second circular sleeve rings, and the four threaded holes are movably connected with threaded rods through threads, the back-off surfaces of the four threaded rods are fixedly connected with a threaded rod sleeve;

and an arch foot angle adjusting device is arranged outside the concrete arch foot base.

Preferably, the arch springing angle adjusting device comprises two rectangular connecting blocks, wherein four threaded holes are formed in the rectangular connecting blocks, every four threaded holes are respectively and movably connected with two first fixing threaded rods through threads, and every four threaded holes are respectively and movably connected with two third fixing threaded rods through threads.

Preferably, four lower swing joint of fixed threaded rod one has the concrete to encircle the foot, four lower swing joint of fixed threaded rod three has the concrete to encircle the foot, two equal fixedly connected with two fixed threaded rod two above the rectangular connecting block.

Preferably, every two all alternate a pivot between the fixed threaded rod two, two the surface of pivot is all fixed to be cup jointed a T shape connecting rod, two equal swing joint has a muddy earth connecting block on the T shape connecting rod.

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

(1) the concrete-encased arch foot structure of the steel pipe concrete arch bridge drives the threaded rod to rotate by rotating the threaded rod sleeve, the threaded rod rotates by the thread and the thread groove on the circular sleeve ring II, when the threaded rod rotates to a proper position, the threaded rod can be taken down, the circular sleeve ring II can also be taken down after the threaded rod is taken down, the circular sleeve ring II is taken down from the sliding rod, at the moment, the sliding rod can be pushed to drive the circular sleeve ring I to move, the sliding rod slides in the rectangular sliding groove, the movement of the circular sleeve ring I drives the concrete arch foot to move, the movement of the concrete arch foot drives the upper concrete connecting block to move, the thickness of the concrete connecting block can be adjusted by adjusting the distance between the two concrete arch legs, compared with a traditional fixed structure, the structure is more flexible, so that the device can be used in different scenes, and the practicability of the device is greatly improved.

(2) This steel pipe concrete encircles bridge outsourcing concrete and encircles foot structure, through rotatory T shape connecting rod, the rotation of the rotatory rotation that drives the pivot of T shape connecting rod, the pivot is at two internal rotations of fixed threaded rod, fixed threaded rod two is fixed on concrete encircles the foot, the rotation of the rotatory rotation that drives the muddy earth connecting block of T shape connecting rod, the rotation that mixes the earth connecting block can adjust the angle of encircleing the foot, through adjusting the angle of encircleing the foot, contrast the structure that tradition is fixed, this structure can carry out the installation to muddy earth connecting block at different angles, thereby the flexibility of equipment has been increased, the degree of difficulty of installation has been reduceed, and the work efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the overall front view of the present invention;

FIG. 2 is a schematic view of the movable arch springing of the present invention;

fig. 3 is a schematic view of the rectangular connecting rod of the present invention.

In the figure: the concrete arch foot comprises a concrete arch foot base 1, a rectangular sliding groove 11, a concrete arch foot 2, a rectangular connecting block 21, a first fixed threaded rod 22, a second fixed threaded rod 23, a rotating shaft 24, a connecting rod 25T, a concrete connecting block 26, a first circular lantern ring 27, a sliding rod 28, a second circular lantern ring 29, a threaded rod 3, a threaded rod sleeve 31 and a third fixed threaded rod 33.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: concrete arch foot structure wrapped outside a steel pipe concrete arch bridge comprises a concrete arch foot base 1, the lower surface of the concrete arch foot base 1 is fixedly connected to the ground, the concrete arch foot base 1 is provided with a rectangular groove, the front wall and the rear wall of the rectangular groove are respectively provided with a rectangular sliding groove 11, a movable adjusting arch foot device is arranged in the concrete arch foot base 1 and comprises two concrete arch feet 2, the front surface and the rear surface of each concrete arch foot 2 are respectively and fixedly connected with a circular lantern ring I27, the deviating surface of each circular lantern ring I27 is respectively and fixedly connected with a sliding rod 28, the four sliding rods 28 are slidably connected in the rectangular sliding grooves 11, the four sliding rods 28 penetrate through the surface of the concrete arch foot base 1, the outer surfaces of the four sliding rods 28 are respectively and movably connected with a circular lantern ring II 29, and a threaded rod sleeve 31 is rotated to drive a threaded rod 3 to rotate, the threaded rod 3 rotates through the thread and the thread groove on the circular lantern ring II 29, when the threaded rod 3 rotates to a proper position, the threaded rod 3 can be taken down, the circular lantern ring II 29 can also be taken down after the threaded rod 3 is taken down, the circular lantern ring II 29 is taken down from the sliding rod 28, at the moment, the sliding rod 28 can be pushed to drive the circular lantern ring I27 to move, the sliding rod 28 slides in the rectangular sliding groove 11, the movement of the circular lantern ring I27 drives the concrete arch foot 2 to move, the movement of the concrete arch foot 2 drives the upper concrete connecting block 26 to move, and by adjusting the distance between the two concrete arch feet 2, can adjust the thickness of concrete connecting block 26, all seted up a screw hole in four circular lantern rings two 29, four screw holes have threaded rod 3 through screw thread swing joint, threaded rod cover 31 of the equal fixedly connected with in back of the body off-plane of four threaded rod 3, are equipped with out of the concrete arch sole seat 1 and encircle foot angular adjustment device.

Arch foot angular adjustment device includes two rectangular connection blocks 21, four screw holes have all been seted up to the higher authority of two rectangular connection blocks 21, per four screw holes have two fixed threaded rod 22 through the equal swing joint of screw, swing joint has concrete to encircle foot 2 below per four screw holes have two three 33 four fixed threaded rod 22 of fixed threaded rod through the equal swing joint of screw, swing joint has concrete to encircle foot 2 below four three 33 fixed threaded rod, equal two 23 per two fixed threaded rod of two fixedly connected with on two rectangular connection blocks 21 all alternate a pivot 24, a T shape connecting rod 25 has all been cup jointed to the surface of two pivot 24 fixedly, the equal swing joint of the higher authority of two T shape connecting rods 25 has one to mix earth connecting block 26.

The working principle is as follows:

the first step is as follows: the threaded rod 3 is driven to rotate by rotating the threaded rod sleeve 31, the threaded rod 3 rotates through a thread and a thread groove on the circular sleeve ring II 29, the threaded rod 3 can be taken down after rotating to a proper position, the circular sleeve ring II 29 can also be taken down after the threaded rod 3 is taken down, the circular sleeve ring II 29 is taken down from the sliding rod 28, at the moment, the sliding rod 28 can be pushed to drive the circular sleeve ring I27 to move, the sliding rod 28 slides in the rectangular sliding groove 11, the movement of the circular sleeve ring I27 drives the concrete arch foot 2 to move, the movement of the concrete arch foot 2 drives the upper concrete connecting block 26 to move, the T-shaped connecting rod 25 is rotated, the rotating shaft 24 is driven to rotate by the rotation of the T-shaped connecting rod 25, the rotating shaft 24 rotates in the fixed threaded rod II 23, the fixed threaded rod II 23 is fixed on the concrete arch foot 2, the rotation of the T-shaped connecting rod 25 drives the concrete connecting block 26 to rotate, the angle of hunch foot can be adjusted in the rotation of muddy earth connecting block 26, through adjusting the interval between two concrete hunch feet 2, can adjust the thickness of muddy earth connecting block 26, compares the fixed structure of tradition, and this structure is more nimble to can use in different scenes, greatly increased the practicality of device.

The second step is that: through rotatory T shape connecting rod 25, the rotation of the rotatory pivot 24 that drives of T shape connecting rod 25, pivot 24 is at two 23 internal rotations of fixed threaded rod, two 23 fixed threaded rod fix on concrete hunch foot 2, the rotation of the rotatory muddy earth connecting block 26 that drives of T shape connecting rod 25, the angle of hunch foot can be adjusted in the rotation of muddy earth connecting block 26, through adjusting the angle of hunch foot, contrast the fixed structure of tradition, this structure can carry out the installation to muddy earth connecting block 26 at different angles, thereby the flexibility of equipment has been increased, the degree of difficulty of installation has been reduced, and the work efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Concrete-filled steel tube arched bridge outsourcing concrete encircles foot structure, including concrete arch sole seat (1), the following fixed connection of concrete arch sole seat (1) is subaerial, the rectangle recess has been seted up in concrete arch sole seat (1), a rectangle spout (11) have all been seted up in two walls around the rectangle recess, be equipped with portable regulation hunch foot device, its characterized in that in concrete arch sole seat (1): the movable adjustable arch foot device comprises two concrete arch feet (2), the front surface and the rear surface of each of the two concrete arch feet (2) are fixedly connected with a first circular sleeve ring (27), the deviating surfaces of the four first circular sleeve rings (27) are fixedly connected with a sliding rod (28), the four sliding rods (28) are slidably connected into a rectangular sliding groove (11), the four sliding rods (28) penetrate through the surface of the concrete arch foot base (1), the outer surfaces of the four sliding rods (28) are movably connected with a second circular sleeve ring (29), a threaded hole is formed in each of the four second circular sleeve rings (29), the four threaded holes are movably connected with a threaded rod (3) through threads, and the deviating surfaces of the four threaded rods (3) are fixedly connected with a threaded rod sleeve (31);

and an arch foot angle adjusting device is arranged outside the concrete arch foot base (1).

2. A concrete-filled steel tube arch bridge outer cladding concrete arch foot structure according to claim 1, wherein: the arch springing angle adjusting device comprises two rectangular connecting blocks (21), two four threaded holes are formed in the upper face of each rectangular connecting block (21), every four threaded holes are respectively and movably connected with two first fixing threaded rods (22) through threads, and every four threaded holes are respectively and movably connected with two third fixing threaded rods (33) through threads.

3. A concrete-filled steel tube arch bridge outer cladding concrete arch foot structure according to claim 2, wherein: four swing joint has concrete to encircle foot (2), four below fixed threaded rod one (22) swing joint has concrete to encircle foot (2), two below the fixed threaded rod three (33) equal two fixed threaded rod two (23) of fixedly connected with above rectangular connecting block (21).

4. A concrete-filled steel tube arch bridge outer cladding concrete arch foot structure according to claim 3, wherein: every two all interlude has a pivot (24), two between fixed threaded rod two (23) the surface of pivot (24) is all fixed to be cup jointed a T shape connecting rod (25), two equal swing joint has one to mix earth connecting block (26) above the T shape connecting rod (25).