A prefabricated box culvert installation joint adjustment device and installation method

Abstract

The invention discloses a prefabricated box culvert / box culvert installation joint adjustment device, comprising an I-beam longitudinal beam, an installed box culvert, a box culvert to be installed, embedded steel parts, special hanging parts, steel wire ropes and jacks; the installed box culvert and the box culvert to be installed are arranged side by side, two groups of embedded steel parts are arranged in the installed box culvert and the box culvert to be installed, the embedded steel parts are connected below the special hanging parts, two I-beam longitudinal beams are arranged above the two groups of special hanging parts, the jack is arranged below the I-beam longitudinal beam, the jack is close to one end of the box culvert to be installed, and the side of the special hanging part is provided with a steel wire rope hung on the I-beam longitudinal beam. The invention utilizes the principle of lever, can fine-tune the segment to be installed up and down and left and right, ensure the joint width and staggered seam requirements, ensure installation accuracy and improve installation efficiency, has a simple structure, is convenient to connect, does not need to use a crane, is light in weight, is easy to turn around, and can be reused many times.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a prefabricated box duct / box culvert installation joint adjustment device and an installation method. Background Art

[0002] Prefabricated concrete box culverts can be factory-produced, hoisted and transported as a whole, so as to improve efficiency and reduce energy consumption. However, concrete box culverts are generally large in size and weight, and large-tonnage cranes are required during installation. During construction, the width of the section joints of the box culverts is required to be controlled within 5-10 mm, and the staggered joints are required to be controlled within 0-10 mm, with high installation accuracy. It is difficult for large-tonnage cranes to control such a small accuracy during the hoisting process, so fine adjustment is required for on-site construction, which is inconvenient for manual operation. Therefore, an adjustment machine that can quickly install prefabricated box culverts is needed to reduce the installation cost of prefabricated box culverts. Summary of the invention

[0003] To solve the above problems, the present invention discloses a prefabricated box culvert installation joint adjustment device and installation method, which can fine-tune the section to be installed up and down and left and right to ensure the joint width and staggered requirements, ensure installation accuracy and improve installation efficiency.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A prefabricated box culvert / box culvert installation joint adjustment device comprises an I-beam longitudinal beam, an installed box culvert, a box culvert to be installed, embedded steel parts, special hanging parts, steel wire ropes and jacks; the installed box culvert and the box culvert to be installed are arranged side by side, two groups of embedded steel parts are arranged in the installed box culvert and the box culvert to be installed, the embedded steel parts are connected below the special hanging parts, two I-beam longitudinal beams are arranged above the two groups of special hanging parts, the jack is arranged below the I-beam longitudinal beam, the jack is close to one end of the box culvert to be installed, and the side of the special hanging part is provided with a steel wire rope hung on the I-beam longitudinal beam.

[0006] As an improvement of the present invention, the embedded steel part has an I-shaped cross-section, an elliptical upper plate above the embedded steel part, and a lower circular plate below the embedded steel part. The upper plate and the lower circular plate are connected by a cylinder, the lower circular plate is embedded in the box passage, and the upper plate is exposed in the groove above the box passage. The height of the upper plate is lower than the height of the upper plane of the box passage.

[0007] As an improvement of the present invention, the special hanging piece is a hollow cylinder with an elliptical entrance at the bottom, and pull rings are provided on both sides of the special hanging piece.

[0008] As an improvement of the present invention, the model of the steel wire rope is 6*41SW.

[0009] As an improvement of the present invention, the jack is arranged at 1 / 3-1 / 4 of the I-beam longitudinal beam.

[0010] As an improvement of the present invention, the contact surface between the jack and the lower end of the I-beam longitudinal beam is a plane.

[0011] As an improvement of the present invention, a limiting device for limiting the displacement of the steel wire rope is provided on the I-beam longitudinal beam.

[0012] As an improvement of the present invention, the limiting device includes two inverted U-shaped baffles and a support rod, the two inverted U-shaped baffles are vertically welded to the I-beam longitudinal beam, the steel wire rope passes between the two inverted U-shaped baffles, and the support rod is diagonally supported on the outside of the baffles.

[0013] A method for installing a prefabricated box culvert or box culvert comprises the following steps:

[0014] (1) Embedded steel parts are embedded before pouring concrete of prefabricated box culverts / box culverts;

[0015] (2) The special hanging parts and embedded steel parts adopt corresponding special structures, the tongue and groove match each other, and the special hanging parts hook the embedded steel parts;

[0016] (3) The I-beam longitudinal beam is placed above the special hanging piece. The I-beam longitudinal beam spans two installed segments and one segment to be installed. The jack is set below the I-beam longitudinal beam. The jack is close to one end of the box culvert to be installed.

[0017] (4) The special hanging piece is hung on the I-beam longitudinal beam by the steel wire rope, and the I-beam longitudinal beam is provided with a limit device to limit the forward and backward movement of the steel wire rope;

[0018] (5) Use the chain hoist to connect the completed prefabricated box culvert / box culvert and the prefabricated box culvert / box culvert to be installed;

[0019] (6) Start the jack and use the lever principle to lift the box culvert to be installed, so that the joint of the box culvert to be installed can be moved up and down;

[0020] (7) Tighten the chain hoist on one side to enable the box culvert to be installed to move left or right;

[0021] (8) After the box culvert segment is adjusted, the steel plate is supported, the jack is removed, and the next cycle begins.

[0022] The beneficial effects of the present invention are:

[0023] The prefabricated box culvert installation joint adjustment device and installation method described in the present invention utilize the lever principle to fine-tune the section to be installed up and down and left and right, ensure the joint width and staggered requirements, ensure the installation accuracy and improve the installation efficiency, have a simple structure, are easy to connect, do not require a crane, are light in weight, are easy to turn around, and can be reused many times. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the connection between the I-beam longitudinal beam and the embedded steel parts described in the present invention.

[0026] Figure 3 It is a plan view of the present invention.

[0027] Figure 4 This is a schematic diagram of the embedded steel parts described in the present invention.

[0028] Figure 5 It is a schematic diagram of the special hanging piece described in the present invention.

[0029] List of Figure Symbols:

[0030] 1. I-beam longitudinal beam, 2. chain hoist, 3. embedded steel parts, 4. special hanging parts, 5. wire rope, 6. jack; 7. limit device, 8. installed box passage 1, 9. installed box passage 2, 10. box passage to be installed, 11. oval upper plate, 12. lower disc, 13. cylinder, 14. groove, 15. oval entrance, 16. pull ring. DETAILED DESCRIPTION

[0031] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0032] As shown in the figure, a prefabricated box culvert installation joint adjustment device described in the present invention includes an I-beam longitudinal beam 1, installed box culverts 8 and 9, a box culvert to be installed 10, embedded steel parts 3, a special hanger 4, a steel wire rope 5, and a jack 6; the installed box culverts 8 and 9 are arranged side by side with the box culvert to be installed 10, two groups of embedded steel parts 3 are arranged in the installed box culverts 8 and 9 and the box culvert to be installed 10, the embedded steel parts 3 are connected below the special hanger 4, two I-beam longitudinal beams 1 are arranged above the two groups of special hangers 4, the jack 6 is arranged below the I-beam longitudinal beam 1, the jack 6 is close to one end of the box culvert to be installed 10, and the side of the special hanger 4 is provided with a steel wire rope 5 hung on the I-beam longitudinal beam 1.

[0033] The model of the steel wire rope 5 used in the present invention is 6*41SW, which can safely lift the box.

[0034] The contact surface between the jack 6 and the lower end of the I-beam longitudinal beam 1 of the present invention is a plane (not a pointed head), so the jacking is more stable.

[0035] A method for installing a prefabricated box culvert or box culvert comprises the following steps:

[0036] (1) The embedded steel part 3 is embedded before the concrete pouring of the prefabricated box culvert / box culvert. The embedded steel part 3 has an I-shaped cross section. The upper part of the embedded steel part is an elliptical upper plate 11, and the lower part is a lower circular plate 12. The upper plate 11 and the lower circular plate 12 are connected by a cylinder 13. The lower circular plate 12 is embedded in the box culvert. The upper plate 11 is exposed in the groove 14 above the box culvert. The height of the upper plate 11 is lower than the height of the upper plane of the box culvert.

[0037] (2) The special hanging piece 4 and the embedded steel part 3 adopt corresponding special structures, the tongue and groove match each other, and the special hanging piece hooks the embedded steel part; the special hanging piece 4 is a hollow cylinder, and an elliptical entrance 15 is provided at the bottom (the shape and size match the elliptical upper plate 11. When in use, the special hanging piece 4 is hung above the embedded steel part 3, and lowered so that the elliptical entrance 15 is sleeved on the elliptical upper plate 11. After being sleeved, the special hanging piece 4 is rotated 90°, and the entrance of the special hanging piece 4 hooks the embedded steel part 3), and pull rings 16 are provided on both sides of the special hanging piece 4 (for hanging the wire rope 5).

[0038] (3) The I-beam longitudinal beam 1 is placed above the special hanger 4. The I-beam longitudinal beam 1 spans two installed segments 8 and 9 and a segment to be installed 10. The jack 6 is set below the I-beam longitudinal beam 1. The jack 6 is close to one end of the box culvert 10 to be installed (the jack 6 is set at 1 / 3-1 / 4 of the I-beam longitudinal beam).

[0039] (4) The special hanging piece 4 is hung under the I-beam longitudinal beam 1 by a steel wire rope 5. A limit device 7 is provided on the I-beam longitudinal beam 1 to limit the forward and backward movement of the steel wire rope 5. The limit device 7 includes two inverted U-shaped baffles and a support rod. The two inverted U-shaped baffles are vertically welded on the I-beam longitudinal beam. The steel wire rope passes between the two inverted U-shaped baffles. The support rod is diagonally supported on the outside of the baffles.

[0040] (5) Use the chain hoist 2 to connect the completed prefabricated box culvert 9 and the prefabricated box culvert 10 to be installed, such as Figure 3 As shown;

[0041] (6) Start the jack 6 and use the lever principle to lift the box culvert 10 to be installed, so that the segment joint of the box culvert 10 to be installed can be moved up and down;

[0042] (7) Tightening the chain hoist 2 on one side can enable the box culvert / box culvert 10 to be installed to move left or right;

[0043] (8) After the box culvert 10 segments are adjusted, the steel plates are supported and the jack 6 is removed to enter the next cycle.

[0044] The present invention discloses a prefabricated box culvert installation joint adjustment device and installation method, which has the following advantages:

[0045] (1) The device has a simple structure and is easy to connect;

[0046] (2) The product is light and small, easy to circulate, and can be reused many times;

[0047] (3) The product processing cycle is short, which can effectively shorten the segment seam width and staggered seam adjustment time, improve the installation time of prefabricated box culverts, and has good economy.

[0048] It should be noted that the above content only illustrates the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A prefabricated box culvert installation joint adjustment device, characterized in that: It includes an I-beam longitudinal beam, an installed box channel, a box channel to be installed, embedded steel parts, special hanging parts, steel wire ropes, and jacks; the installed box channel and the box channel to be installed are arranged side by side, two groups of embedded steel parts are arranged in the installed box channel and the box channel to be installed, the embedded steel parts are connected below the special hanging parts, two I-beam longitudinal beams are arranged above the two groups of special hanging parts, the jack is arranged below the I-beam longitudinal beam, the jack is close to one end of the box channel to be installed, and the side of the special hanging part is provided with a steel wire rope hung on the I-beam longitudinal beam; The embedded steel part has an I-shaped cross section, an elliptical upper plate is located above the embedded steel part, and a lower circular plate is located below the embedded steel part. The upper plate and the lower circular plate are connected by a cylinder. The lower circular plate is embedded in the box passage, and the upper plate is exposed in the groove above the box passage. The height of the upper plate is lower than the height of the upper plane of the box passage. The special hanging piece is a hollow cylinder with an elliptical entrance at the bottom and pull rings at both sides of the special hanging piece.

2. The prefabricated box culvert installation joint adjustment device according to claim 1 is characterized in that: The model of the steel wire rope is 6*41SW.

3. The prefabricated box culvert installation joint adjustment device according to claim 1 is characterized in that: The jack is arranged at 1 / 3-1 / 4 of the I-beam longitudinal beam.

4. The prefabricated box culvert installation joint adjustment device according to claim 1 is characterized in that: The contact surface between the jack and the lower end of the I-beam longitudinal beam is a plane.

5. The prefabricated box culvert installation joint adjustment device according to claim 1 is characterized in that: A limiting device for limiting the displacement of the steel wire rope is provided on the I-beam longitudinal beam.

6. The prefabricated box culvert installation joint adjustment device according to claim 5 is characterized in that: The limiting device includes two inverted U-shaped baffles and a support rod. The two inverted U-shaped baffles are vertically welded to the I-beam longitudinal beam. The steel wire rope passes between the two inverted U-shaped baffles. The support rod is obliquely supported on the outside of the baffles.

7. A method for installing a prefabricated box culvert or box culvert, characterized in that: The following steps are involved: (1) Embedded steel parts are embedded before pouring concrete of prefabricated box culverts / box culverts; (2) The special hanging parts and embedded steel parts adopt corresponding special structures, the tongue and groove match each other, and the special hanging parts hook the embedded steel parts; (3) The I-beam longitudinal beam is placed above the special hanging piece. The I-beam longitudinal beam spans two installed segments and one segment to be installed. The jack is set below the I-beam longitudinal beam. The jack is close to one end of the box culvert to be installed. (4) The special hanging piece is hung on the I-beam longitudinal beam by the steel wire rope, and the I-beam longitudinal beam is provided with a limit device to limit the forward and backward movement of the steel wire rope; (5) Use the chain hoist to connect the completed prefabricated box culvert / box culvert and the prefabricated box culvert / box culvert to be installed; (6) Start the jack and use the lever principle to lift the box culvert to be installed, so that the joint of the box culvert to be installed can be moved up and down; (7) Tighten the chain hoist on one side to enable the box culvert to be installed to move left or right; (8) After the box culvert segment is adjusted, the steel plate is supported, the jack is removed, and the next cycle begins.

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