Jack fixing device suitable for steel bar method bent cap construction

By using a steel bar clamp platform and an anti-tipping casing jack fixing device in the construction of the steel bar cap beam, the problem of jack overturning and instability was solved, the stability and safety of the support system were achieved, and the demolding process was simplified.

CN223921999UActive Publication Date: 2026-02-17CHINA RAILWAY ERJU 5TH ENG CO LTD +1
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Patent Information

Application Number
CN202520168497.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-17
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

In existing bridge engineering projects, during the construction of cap beams, the small contact area between the jacks and steel bars in the steel bar method of construction leads to a high possibility of overturning and instability, posing a safety risk.

Method used

A jack fixing device was designed, including a steel rod clamp platform and an anti-tipping sleeve. The steel rod clamp platform is located below the jack to provide a stable platform, and the anti-tipping sleeve is fitted on the top of the jack and fixed by welding to ensure the stability of the jack.

Benefits of technology

It improves the stability and safety of the jack, avoids the risk of overturning and instability, and can replace sand box construction, simplifying the demolding process.

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Abstract

The utility model provides a jack fixing device suitable for steel bar method bent cap construction. The jack fixing device comprises a steel bar hoop platform and an anti-toppling pile casing. Wherein the steel bar hoop platform is located below the jack and can provide a stable placing platform for the jack; the top of the jack is sleeved with the anti-toppling pile casing. The steel bar hooping platform comprises a platform body and a plurality of fixing plates which are fixedly connected up and down, and the fixing plates are provided with arc-shaped openings which face downwards and are fixedly connected with steel bars. According to the jack fixing device, the jack can be used for replacing a sand box for construction at the same time, demolding is facilitated, and the mode is safe and reliable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bent cap construction in bridge engineering, and particularly relates to a jack fixing device suitable for steel rod method bent cap construction. BACKGROUND

[0002] The steel rod method is usually used for bent cap construction in existing bridge engineering, and a sand box mode or a jack is arranged on a main I-beam for the purpose of convenient stripping. In order to meet the requirement of simple operation, the jack is directly arranged on the steel rod, and the contact area between the jack and the steel rod (circular) is small. If no reinforcing measures are taken, the jack may be overturned and unstable, and the safety risk is high.

[0003] The utility model aims to provide a safe jack fixing construction method for the steel rod method jack supporting system, and ensure the safety of the steel rod method supporting system. UTILITY MODEL CONTENTS

[0004] The utility model aims to solve at least one of the above-mentioned deficiencies in the prior art. For example, one of the purposes of the utility model is to provide a jack fixing device suitable for steel rod method bent cap construction.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a jack fixing device suitable for steel rod method bent cap construction, which comprises a steel rod hoop platform and an anti-toppling casing.

[0006] The steel rod hoop platform is located below the jack and can provide a stable placing platform for the jack.

[0007] The anti-toppling casing is arranged on the top of the jack, and the anti-toppling casing needs to be arranged according to the diameter of the jack.

[0008] Optionally, the steel rod hoop platform comprises a platform body and a fixed plate which are fixedly connected in sequence, wherein the number of the fixed plates is plural, and the fixed plate has an arc-shaped opening which is downwardly open and fixedly connected with the steel rod.

[0009] Optionally, the platform body comprises a channel steel, and the groove of the channel steel is downwardly open.

[0010] Optionally, the fixed plate is a steel plate, and the steel plate is fixedly connected in the groove of the channel steel.

[0011] Optionally, the arc-shaped opening corresponds to a central angle of not more than 180 degrees.

[0012] Optionally, the fixed plates are parallel to each other.

[0013] Optionally, the platform body and the fixed plate are fixedly connected through welding.

[0014] Optionally, the anti-toppling casing comprises a top connecting plate and a circular tube, and the upper end of the circular tube is connected perpendicularly to the lower surface of the top connecting plate.

[0015] Optionally, the circular tube is sleeved on the upper end of the jack, the upper end surface of the jack is in contact with the lower surface of the top connecting plate, and the circular tube is consistent with the center of the jack.

[0016] Optionally, the thickness of the top connecting plate is 8-12 mm, and the wall thickness of the circular tube is 8-12 mm.

[0017] The mounting step of the jack fixing device comprises:

[0018] processing the steel bar hoop platform;

[0019] setting the anti-toppling casing;

[0020] combining the steel bar hoop platform and the anti-toppling casing, and fixing the jack;

[0021] repeating the above steps until the reverse wall construction of all foundation pits is completed.

[0022] Compared with the prior art, the beneficial effects of the utility model include at least one of the following contents:

[0023] (1) The jack fixing device can ensure the stability and safety of the jack in the support system.

[0024] (2) The jack fixing device can simultaneously use the jack to replace the sand box construction, which is convenient for demolding, and the method is safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and other objects and / or characteristics of the utility model will become more apparent from the following description made with reference to the accompanying drawings, wherein:

[0026] Figure 1 A bridge bent cap steel bar method construction support system schematic diagram is shown.

[0027] Figure 2 A steel bar hoop platform composition schematic diagram of the utility model is shown.

[0028] Figure 3 A steel bar hoop platform schematic diagram of the utility model is shown.

[0029] Figure 4 A bottom view of the anti-toppling casing of the utility model is shown.

[0030] Figure 5 A side view of the anti-toppling casing of the utility model is shown.

[0031] Figure 6 The utility model discloses a jack fixing device suitable for steel rod method bent cap construction.

[0032] Main figure mark explanation:

[0033] 1 - prevent toppling protection cylinder, 2 - jack, 3 - steel rod hoop platform, 4 - steel rod, 5 - top connecting plate, 6 - round pipe, 7 - round pipe center (jack center), 8 - steel plate, 9 - channel steel, 10 - bridge pier column, 11 - bent cap, 12 - beam body bottom die, 13 - distribution beam (small I-beam), 14 - main beam (big I-beam). Specific embodiments

[0034] In the following, a kind of jack fixing device suitable for steel rod method bent cap construction of the utility model will be described in detail in conjunction with exemplary embodiments.

[0035] Exemplary embodiments

[0036] The exemplary embodiments will be described in conjunction with the drawings.

[0037] As Figure 6 Indicated, the device includes steel rod hoop platform 3 and prevent toppling protection cylinder 1;

[0038] Wherein, steel rod hoop platform 3 is located below jack 2, and can provide stable platform for jack 2;

[0039] Prevent toppling protection cylinder 1 is set in the top of jack 2, and prevent toppling protection cylinder needs to be set according to the diameter size of jack.

[0040] In the embodiment, the steel rod hoop platform 3 includes platform body and fixed plate fixedly connected, wherein the number of fixed plate is multiple, and the fixed plate has arc-shaped opening with opening downward and fixedly connected with steel rod 4.

[0041] In the embodiment, as Figure 2 Indicated, the platform body includes channel steel 9, and the notch of channel steel 9 groove is downward;

[0042] The fixed plate is steel plate 8, and steel plate 8 is fixedly connected in the groove of channel steel 9.

[0043] In the embodiment, the arc-shaped opening is corresponding to central angle not more than 180 degrees.

[0044] In the embodiment, each fixed plate is parallel to each other.

[0045] In the embodiment, the platform body and the fixed plate are fixedly connected by welding, and the steel rod hoop platform composed is asFigure 3 As shown.

[0046] In this embodiment, as shown in Figure 4 the anti-toppling casing includes a top connecting plate 5 and a circular tube 6, the upper end of the circular tube 6 is connected vertically to the lower surface of the top connecting plate 5, and the side view of the anti-toppling casing is shown in Figure 5 As shown.

[0047] In this embodiment, the circular tube 6 is sleeved on the upper end of the jack 2, the upper end surface of the jack 2 is in contact with the lower surface of the top connecting plate 5, and the center of the circular tube is consistent with the center (7) of the jack.

[0048] In this embodiment, the thickness of the top connecting plate is 8-12 mm, and the wall thickness of the circular tube is 8-12 mm.

[0049] In this embodiment, the thickness of the top connecting plate and the wall thickness of the circular tube are generally 8-12 mm, but are not limited to 8-12 mm.

[0050] In this embodiment, the mounting steps of the jack fixing device include:

[0051] Processing the steel bar clamp platform;

[0052] Setting the anti-toppling casing;

[0053] Combining the steel bar clamp platform and the anti-toppling casing to fix the jack;

[0054] Repeat the above steps until the entire foundation pit backfilling is completed.

[0055] Figure 1 As shown in the schematic diagram of the bridge bent cap steel bar method construction support system, it includes a bridge pier column 10, a bent cap 11, a beam body bottom die 12, a distribution beam (small I-beam) 13, and a main beam (large I-beam) 14.

[0056] Although the utility model has been described above in combination with the example embodiments and the accompanying drawings, it should be clear for those skilled in the art that various modifications can be made to the above embodiments without departing from the spirit and scope of the claims.

Claims

1. A jack fixing device suitable for steel bar method cap beam construction, characterized in that, The device includes a steel bar clamp platform and an anti-tipping protective casing; Among them, the steel bar clamp platform is located below the jack and can provide a stable platform for the jack; The anti-tipping sleeve is installed on top of the jack.

2. The jack fixing device for steel bar method cap beam construction according to claim 1, characterized in that, The steel rod clamp platform includes a platform body and a fixing plate that are fixedly connected at the top and bottom, wherein... There are multiple fixing plates, each with an arc-shaped opening facing downwards and fixedly connected to a steel rod.

3. The jack fixing device for steel bar method cap beam construction according to claim 2, characterized in that, The platform body includes channel steel, with the groove opening of the channel steel facing downwards.

4. The jack fixing device for steel bar method cap beam construction according to claim 3, characterized in that, The fixing plate is a steel plate, which is fixedly connected to the groove of the channel steel.

5. The jack fixing device for steel bar method cap beam construction according to claim 2, characterized in that, The arc-shaped opening has a corresponding central angle of no more than 180 degrees.

6. The jack fixing device for steel bar method cap beam construction according to claim 2, characterized in that, The various fixing plates are parallel to each other.

7. The jack fixing device for steel bar method cap beam construction according to claim 2, characterized in that, The platform body and the fixing plate are fixedly connected by welding.

8. The jack fixing device for steel bar method cap beam construction according to claim 1, characterized in that, The anti-tipping sleeve includes a top connecting plate and a round tube, with the upper end of the round tube vertically connected to the lower surface of the top connecting plate.

9. The jack fixing device for steel bar method cap beam construction according to claim 8, characterized in that, The circular tube is fitted onto the upper end of the jack, and the upper surface of the jack contacts the lower surface of the top connecting plate. The circular tube is aligned with the center of the jack.

10. The jack fixing device for steel bar method cap beam construction according to claim 8, characterized in that, The thickness of the top connecting plate is 8-12 mm, and the wall thickness of the round tube is 8-12 mm.