CN216999329U - Bridge deck system hogging moment whole bundle tensioning equipment - Google Patents

Abstract

The utility model relates to bridge deck system hogging moment tensioning equipment, in particular to bridge deck system hogging moment whole-bundle tensioning equipment, which aims to solve the problem that when an intelligent tensioning machine is adopted for carrying out bridge deck system hogging moment whole-bundle tensioning, the problem that a jack is difficult to operate manually due to the fact that a whole bundle of jacks used correspondingly for tensioning is heavy is generated. The bridge deck system hogging moment whole-bundle tensioning equipment is simple in structure and convenient to use, and solves the problem that a jack is difficult to operate manually.

Description

Bridge deck system hogging moment whole bundle tensioning equipment

Technical Field

The utility model relates to auxiliary equipment for building construction, in particular to bridge deck system negative bending moment tensioning equipment, and specifically relates to bridge deck system negative bending moment whole-bundle tensioning equipment.

Background

With the development of economy and the improvement of environmental protection requirements, the assembly type building is greatly improved in the field of highway construction, and particularly the assembly type precast beam is prominent.

The assembled prestressed concrete simply-supported T-shaped beam has the advantages of simple structure, clear stress, material saving, convenience in erection and installation, large crossing capacity and the like. In the using process, in order to overcome the influence of positive bending moment in a simply supported T-beam structure, a negative bending moment tensioning process is often added in a bridge deck system, and the process is constructed after beam erection, so that the difficulty that high-altitude operation is difficult to operate is faced; meanwhile, hogging moment tensioning mostly adopts single-end tensioning of a manual jack at present, and has the advantages of simple operation, low result reliability and different degrees of danger.

At present, the intelligent tensioning machine is mostly adopted in the tensioning field, the intelligent tensioning machine has the advantages of saving time and labor, realizing simultaneous symmetrical tensioning at two ends and ensuring the accuracy of results, and if the intelligent tensioning machine is adopted to carry out the hogging moment whole-bundle tensioning of a bridge deck system, the problem that the jack is difficult to manually operate due to the fact that the whole-bundle tensioning corresponds to a used jack and is heavy can be caused.

Disclosure of Invention

The utility model provides a novel hogging moment whole-bundle tensioning device for a bridge deck system, aiming at solving the problem that when an intelligent tensioning machine is adopted for carrying out hogging moment whole-bundle tensioning of the bridge deck system, the problem that a jack used correspondingly for whole-bundle tensioning is heavy, so that the jack is difficult to operate manually is caused.

The utility model is realized by adopting the following technical scheme:

the utility model provides a bridge floor system hogging moment whole bundle tensioning equipment, including intelligent stretch-draw machine, the jack, the hoist engine, L type hoist and support and the support base that is used for fixed hoist engine that constitute by vertical arm and horizontal arm, support base fixed connection is higher than the bottom of support base in one side of support and the bottom of support, hoist engine fixed connection is in the top of support, the coiling rope and the hoist engine fixed connection of hoist engine are passed through to the top of the vertical arm of L type hoist, the bottom of the vertical arm of L type hoist is less than the support bottom, jack fixed connection is in the horizontal arm of L type hoist, the axial of jack all with the length direction of the horizontal arm of L type hoist, the axial vertical of hoist, the jack exposes in the opposite side of support.

When the bridge deck system negative-moment integral tensioning device is used, two bridge deck system negative-moment integral tensioning devices are generally adopted, support bases of the two integral tensioning devices are respectively fixed to the tops of beam plates at construction positions on two sides of a bridge deck, two intelligent tensioning machines are also respectively placed on the tops of the beam plates at the construction positions on two sides of the bridge deck or the intelligent tensioning machines can be respectively fixed or placed on the support bases of the bridge deck system negative-moment integral tensioning devices (only the intelligent tensioning machines are placed on the devices or near the devices), then an L-shaped lifting appliance is placed to a position right opposite to a wet joint of the bridge deck, the L-shaped lifting appliance is controlled to ascend or descend by a winch, so that a jack is driven to move to a tensioning groove, and the intelligent tensioning machines are used for controlling the jack to carry out bridge deck negative-moment integral tensioning.

The beneficial effects produced by the utility model are as follows: the bridge deck system negative bending moment whole-bundle tensioning equipment is simple in structure, low in manufacturing cost, convenient to use and high in repeated utilization rate, solves the problem of difficulty in manually operating a jack, achieves whole-bundle intelligent tensioning of the bridge deck system negative bending moment, achieves data controllability and reliable results, is flexible in adjustment in all directions, can be accurately positioned, greatly improves construction quality and construction progress, guarantees whole construction quality and durability of a bridge, and guarantees construction safety of workers.

Drawings

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

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a top view of fig. 1.

In the figure: the intelligent lifting device comprises an intelligent tensioning machine, 2 jacks, 3 hoists, 4-L-shaped lifting appliances, 5-square frame bodies, 6-triangular prism frame bodies, 7-support bases, 8-universal wheels, 9-inclined struts, 10-T-shaped connecting plates, 11-connecting arms and 12-net frames.

Detailed Description

As shown in fig. 1 to 3, a bridge deck negative bending moment whole bundle tensioning device, including intelligent tensioning machine 1, jack 2, hoist engine 3, L type hoist 4 that comprises vertical arm and horizontal arm and support base 7 that are used for fixed hoist engine 3, support base 7 fixed connection is in one side of support and the bottom of support is higher than the bottom of support base 7, hoist engine 3 fixed connection is in the top of support, the top of the vertical arm of L type hoist 4 is through the coiling rope of hoist engine 3 and hoist engine 3 fixed connection, the bottom of the vertical arm of L type hoist 4 is less than the support bottom, jack 2 fixed connection is in the horizontal arm of L type hoist 4, the axial of jack 2 all with the length direction of the horizontal arm of L type hoist 4, the axial of hoist engine 3 is perpendicular, jack 2 exposes in the opposite side of support.

When the bridge deck system negative-moment integral tensioning device is used, two bridge deck system negative-moment integral tensioning devices are generally adopted, the support bases 7 of the two integral tensioning devices are respectively fixed on the tops of beam plates at construction positions on two sides of a bridge deck, the two intelligent tensioning machines 1 are also respectively placed on the tops of the beam plates at the construction positions on two sides of the bridge deck or the intelligent tensioning machines 1 can be respectively fixed or placed on the support bases 7 of the bridge deck system negative-moment integral tensioning devices (only the intelligent tensioning machines 1 are placed on the devices or near the devices), then the L-shaped lifting appliance 4 is placed to a position right opposite to a wet joint of the bridge deck, the lifting appliance 3 controls the L-shaped lifting appliance 4 to ascend or descend, so that the lifting jack 2 is driven to move to a tensioning groove, and the intelligent tensioning machines 1 control the lifting jack 2 to carry out bridge deck negative-moment integral tensioning.

During concrete implementation, intelligent stretch-draw machine 1 places on support base 7 for whole equipment is integrated, need not to place intelligent stretch-draw machine 1 alone during the use, facilitates the use. Universal wheel 8 is installed to support base 7 bottom for this equipment can be promoted by the manual work, realizes the free movement on the roof beam board top.

In specific implementation, the support includes the square frame 5, the triangular prism frame 6, one of the square side of the triangular prism frame 6 and the top surface edge of the square frame 5 are adapted and fixedly connected (the square side of the triangular prism frame 6 and the top surface edge of the square frame are adapted and fixedly connected, the support is in a house shape), the winch 3 is fixedly connected to the top frame of the triangular prism frame 6, two vertical frames on one side of the square frame 5 extend downwards to form an extension, the support base 7 includes the square frame, one side of the square frame and the bottom of the extension are fixedly connected, the square frame is located on one side of the square frame 5, the diagonal brace 9 is arranged on the corner of the square frame and the square frame 5, and the structure of the support and the support base 7 is specified, normalized and more stable.

During specific implementation, the L-shaped lifting appliance 4 is a channel steel (known to those skilled in the art, the cross section of the channel steel is groove-shaped), a T-shaped connecting plate 10 composed of a transverse plate and a vertical plate is arranged between the lifting appliance 2 and the horizontal arm of the L-shaped lifting appliance 4, the bottom end of the vertical plate of the T-shaped connecting plate 10 is fixedly connected with the circumferential surface of the lifting appliance 2, the transverse plate of the T-shaped connecting plate 10 is inserted into the horizontal arm of the L-shaped lifting appliance 4 from the open end of the horizontal arm of the L-shaped lifting appliance 4, the open end of the horizontal arm of the L-shaped lifting appliance 4 is fixedly connected with a limiting part for limiting the T-shaped connecting plate 10 to slide out of the horizontal arm of the L-shaped lifting appliance 4, so that the lifting appliance 2 can move transversely on the horizontal arm of the L-shaped lifting appliance 4, and the lifting appliance 2 can be conveniently and accurately aligned to a tensioning position. In specific implementation, the limiting part is a limiting pin. The top end of the vertical arm of the L-shaped lifting appliance 4 is vertically and fixedly connected with a connecting arm 11 which is horizontally arranged, the length direction of the connecting arm 11 is parallel to the axial direction of the winch 3, and the winch 3 is fixedly connected with the connecting arm 11 through a winding rope of the winch 3, so that the structure is more stable.

In this embodiment, universal wheel 8 has four and installs respectively in four angles of support base 7 bottom, and the structure is more stable and convenient the removal. Fixedly connected with is used for placing the screen frame 12 of intelligence stretch-draw machine 1 on the support base 7, conveniently places intelligence stretch-draw machine 1. The hoist 3 is an electric lifting hoist 3 with the load not less than 1t, and the jack 2 is a DYG type prestress tensioning jack 2.

Claims (10)

1. A bridge deck system hogging moment whole bundle tensioning device is characterized by comprising an intelligent tensioning machine (1), a jack (2), a winch (3), an L-shaped lifting appliance (4) consisting of a vertical arm and a horizontal arm, a support and a support base (7) for fixing the winch (3), wherein the support base (7) is fixedly connected to one side of the support, the bottom of the support is higher than the bottom of the support base (7), the winch (3) is fixedly connected to the top of the support, the top end of the vertical arm of the L-shaped lifting appliance (4) is fixedly connected with the winch (3) through a winding rope of the winch (3), the bottom end of the vertical arm of the L-shaped lifting appliance (4) is lower than the bottom of the support, the jack (2) is fixedly connected to the horizontal arm of the L-shaped lifting appliance (4), the axial direction of the jack (2) is perpendicular to the length direction of the horizontal arm of the L-shaped lifting appliance (4) and the axial direction of the winch (3), the jack (2) is exposed out of the other side of the bracket.

2. A bridge deck hogging moment integral beam tensioning device according to claim 1, characterized in that the intelligent tensioning machine (1) is placed on the support base (7).

3. A bridge deck hogging moment integral beam tensioning device according to claim 2, characterized in that universal wheels (8) are mounted at the bottom of the support base (7).

4. A bridge deck hogging moment bunching tension device according to claim 1, 2 or 3, characterized in that the bracket comprises a square frame body (5) and a triangular prism frame body (6), one of the square side surfaces of the triangular prism frame body (6) is matched with and fixedly connected with the top surface edge of the square frame body (5), the winch (3) is fixedly connected with the top frame of the triangular prism frame body (6), two vertical frames on one side of the square frame body (5) extend downwards to form an extension part, the bracket base (7) comprises a square frame body, one side of the square frame body is fixedly connected with the bottom of the extension part and the square frame body is positioned on one side of the square frame body (5), and inclined struts (9) are arranged at the corners of the square frame body and the square frame body (5).

5. The bridge deck hogging moment restraining tensioning equipment according to claim 4, characterized in that the L-shaped lifting appliance (4) is a channel steel, a T-shaped connecting plate (10) consisting of a transverse plate and a vertical plate is arranged between the lifting jack (2) and the horizontal arm of the L-shaped lifting appliance (4), the bottom end of the vertical plate of the T-shaped connecting plate (10) is fixedly connected with the circumferential surface of the lifting jack (2), the transverse plate of the T-shaped connecting plate (10) is inserted into the horizontal arm of the L-shaped lifting appliance (4) from the open end of the horizontal arm of the L-shaped lifting appliance (4), and a limiting part for limiting the T-shaped connecting plate (10) from sliding out of the horizontal arm of the L-shaped lifting appliance (4) is fixedly connected with the open end of the horizontal arm of the L-shaped lifting appliance (4).

6. A bridge deck hogging moment integral tensioning device according to claim 5, characterized in that the top end of the vertical arm of the L-shaped sling (4) is vertically and fixedly connected with a horizontally arranged connecting arm (11), the length direction of the connecting arm (11) is parallel to the axial direction of the winch (3), and the winch (3) is fixedly connected with the connecting arm (11) through a winding rope of the winch (3).

7. A bridge deck hogging moment integral beam tensioning device according to claim 6, characterized in that the universal wheels (8) are four and are respectively mounted at the four corners of the bottom of the support base (7).

8. The bridge deck system hogging moment whole beam tensioning equipment according to claim 7, characterized in that a net frame (12) for placing the intelligent tensioning machine (1) is fixedly connected between the frames of the square frame bodies.

9. A bridge deck hogging moment integral beam tensioning device according to claim 8, characterized in that the winch (3) is an electric lifting winch (3) with a load of not less than 1 ton.

10. A bridge deck hogging moment monoblock tensioning device according to claim 9, characterized in that the jacks (2) are DYG-type prestressed tensioning jacks (2).

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