A permanent steel casing positioning jig

Abstract

The utility model provides a permanent steel casing positioning mould relates to steel casing positioning technical field, including I -beam, I -beam includes first I -beam, second I -beam, third I -beam and fourth I -beam, and first I -beam is connected with second I -beam and fourth I -beam welding respectively with third I -beam, including pull rod, and pull rod includes first pull rod and second pull rod, and pull rod tip is connected with I -beam welding, including both sides of sleeper, the utility model has the advantages that: the stability of permanent steel casing has been improved, prevents permanent steel casing from producing shift during the period when putting under the reinforcement cage, concrete pouring, provides the support for pile column integrated construction, greatly simplifies the construction process, shortens the construction period, realizes pile column synchronous construction, improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel casing positioning technology, and in particular to a permanent steel casing positioning jig. Background Technology

[0002] During the reconstruction and expansion of expressways, it is necessary to consider improving the traffic capacity of local roads. Therefore, bridge structures are added during the roadbed upgrading and reconstruction process, and roadbed-to-bridge conversion and bridge span expansion have emerged.

[0003] However, traditional pile foundation and pier construction techniques have long construction periods, high costs, high site requirements, and significant impact on the right lane during construction, affecting normal traffic flow on the right lane. These problems urgently need to be addressed.

[0004] Solving the aforementioned technical problems is the challenge facing this utility model. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a permanent steel casing positioning fixture that improves the stability of the permanent steel casing, prevents displacement of the permanent steel casing during the lowering of the reinforcing cage and concrete pouring, supports integrated pile-column construction, greatly simplifies the construction process, shortens the construction period, realizes synchronous pile-column construction, and improves construction efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides a permanent steel casing positioning jig, including I-beams, wherein the I-beams include a first I-beam, a second I-beam, a third I-beam and a fourth I-beam;

[0007] The first I-beam and the third I-beam are respectively welded to the second I-beam and the fourth I-beam;

[0008] The system includes a tie rod, which comprises a first tie rod and a second tie rod, with an I-beam welded to the end of the tie rod.

[0009] Includes the sleepers on both sides.

[0010] The first I-beam and the third I-beam are arranged horizontally and parallel to each other, and the second I-beam and the fourth I-beam are arranged horizontally and parallel to each other;

[0011] The second I-beam and the fourth I-beam are located on the bottom surfaces of the first I-beam and the third I-beam and are welded together.

[0012] The first tie rod consists of four rods, all of which vertically connect the bottom surfaces of the second I-beam and the fourth I-beam at both ends;

[0013] The second tie rod consists of four rods, all of which vertically connect the bottom surfaces of the first I-beam and the third I-beam at both ends.

[0014] The sleepers include a first sleeper and a second sleeper, each sleeper being 1.8m long and 0.3m wide, with a distance of 0.31m between each sleeper and the temporary steel casing.

[0015] The I-beams are all No. 12 channel steel, with a length of 2.1m.

[0016] All tie rods are made of 25mm threaded steel.

[0017] The distance between the first I-beam and the third I-beam is 1.43m, which is 0.01m wider than the diameter of the permanent steel casing (1.42m) to ensure that the steel casing can be smoothly fitted in.

[0018] The first tie rod is welded at the midpoint 6cm from the ends of the second and fourth I-beams, and the length of the first tie rod is ≥0.5m;

[0019] The second tie rod is welded at the midpoint 6cm from the ends of the first and third I-beams, and the length of the second tie rod is ≥0.62m.

[0020] The beneficial effects of this utility model are as follows: it improves the stability of the permanent steel casing, prevents the permanent steel casing from shifting during the lowering of the reinforcing cage and the pouring of concrete, provides support for the integrated construction of piles and columns, greatly simplifies the construction process, shortens the construction period, realizes the synchronous construction of piles and columns, and improves construction efficiency. Attached Figure Description

[0021] Fig. 1 This is the front view of the present invention.

[0022] Fig. 2 This is a top view of the present invention.

[0023] The attached figures are labeled as follows: 1. First I-beam; 2. Second I-beam; 3. Third I-beam; 4. Fourth I-beam; 5. First tie rod; 6. Second tie rod; 7. First sleeper; 8. Second sleeper; 9. Permanent steel casing; 10. Temporary steel casing. Detailed Implementation

[0024] The technical features of this solution can be clearly explained. The following is a detailed description of the solution through specific implementation methods.

[0025] See Figs. 1-2As shown, this embodiment is a permanent steel casing positioning jig, including I-beams. The I-beams include a first I-beam 1, a second I-beam 2, a third I-beam 3, and a fourth I-beam 4. The first I-beam 1 and the third I-beam 3 are welded to the second I-beam 2 and the fourth I-beam 4, respectively. The first I-beam 1 and the third I-beam 3 are horizontally and parallel to each other, and the second I-beam 2 and the fourth I-beam 4 are horizontally and parallel to each other. The second I-beam 2 and the fourth I-beam 4 are located on the bottom surface of the first I-beam 1 and the third I-beam 3 and are welded to each other. All I-beams are No. 12 channel steel with a length of 2.1m. The distance between the first I-beam 1 and the first and third I-beams 3 is 1.43m, which is 0.01m wider than the diameter of the permanent steel casing 9 (1.42m) to ensure that the steel casing can be smoothly fitted in.

[0026] The system includes tie rods, specifically a first tie rod 5 and a second tie rod 6. The ends of the tie rods are welded to I-beams. Four first tie rods 5 are provided, each vertically connected to the bottom ends of the second I-beam 2 and the fourth I-beam 4. Four second tie rods 6 are provided, each vertically connected to the bottom ends of the first I-beam 1 and the third I-beam 3. All tie rods are made of 25mm threaded steel. The first tie rod 5 is welded at the midpoint 6cm from the ends of the second I-beam 2 and the fourth I-beam 4, and its length is ≥0.5m. The second tie rod 6 is welded at the midpoint 6cm from the ends of the first I-beam 1 and the third I-beam 3, and its length is ≥0.62m.

[0027] It includes sleepers on both sides, including first sleeper 7 and second sleeper 8. The sleepers are 1.8m long and 0.3m wide, and are 0.31m apart from the temporary steel casing 10.

[0028] In actual use, the first step is to weld the first I-beam 1 and the third I-beam 3 to the second I-beam 2 and the fourth I-beam 4.

[0029] The second step is to weld the first tie rod 5 and the second tie rod 6 onto the I-beam;

[0030] The third step is to measure and position the jig and install the positioning jig. The positioning jig is fixed to the ground with eight 25mm diameter tie rods and driven into the ground to a height of not less than 50cm.

[0031] The fourth step is to lower the permanent steel casing 9, maintaining a gap of about 5mm between the casing wall and the positioning jig to ensure that the steel casing is lowered vertically.

[0032] The fifth step is to hoist and lower the steel cage into the hole, aligning it with the hole diameter, keeping it vertical, and gently and slowly lowering it into the hole.

[0033] The sixth step is underwater concrete pouring. During this process, it is important to ensure that there is no squeezing between the casing and the positioning jig, so as to ensure that the steel casing is vertical.

[0034] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A permanent steel casing positioning fixture, characterized in that, Includes I-beams, wherein the I-beams include a first I-beam (1), a second I-beam (2), a third I-beam (3) and a fourth I-beam (4); The first I-beam (1) and the third I-beam (3) are respectively welded to the second I-beam (2) and the fourth I-beam (4); Includes a tie rod, which includes a first tie rod (5) and a second tie rod (6), with I-beams welded to the ends of the tie rods; Including the sleepers on both sides.

2. The permanent steel casing positioning fixture according to claim 1, characterized in that, The first I-beam (1) and the third I-beam (3) are arranged horizontally and parallel to each other, and the second I-beam (2) and the fourth I-beam (4) are arranged horizontally and parallel to each other. The second I-beam (2) and the fourth I-beam (4) are located on the bottom surfaces of the first I-beam (1) and the third I-beam (3) and are welded together.

3. The permanent steel casing positioning fixture according to claim 1, characterized in that, The first tie rod (5) is provided with four rods, all of which are vertically connected to the bottom surfaces of the second I-beam (2) and the fourth I-beam (4); The second tie rod (6) has four rods, all of which are vertically connected to the bottom surfaces of the first I-beam (1) and the third I-beam (3).

4. The permanent steel casing positioning fixture according to claim 1, characterized in that, The sleepers include a first sleeper (7) and a second sleeper (8), each sleeper being 1.8m long and 0.3m wide, and 0.31m apart from the temporary steel casing (10).

5. The permanent steel casing positioning fixture according to claim 1, characterized in that, The I-beams are all No. 12 channel steel, with a length of 2.1m.

6. The permanent steel casing positioning fixture according to claim 1, characterized in that, All tie rods are made of 25mm threaded steel. The spacing between the first I-beam (1) and the first third I-beam (3) is 1.43m.

7. The permanent steel casing positioning fixture according to claim 1, characterized in that, The first tie rod (5) is welded to the midpoint 6cm from the ends of the second I-beam (2) and the fourth I-beam (4), and the length of the first tie rod (5) is ≥0.5m; The second tie rod (6) is welded at the midpoint 6cm from the ends of the first I-beam (1) and the third I-beam (3), and the length of the second tie rod (6) is ≥0.62m.

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