Combination type steel formwork supporting system with reserved hole channel, mud jacking, rod penetrating and hanging functions

Abstract

The utility model discloses a reserved duct grouting rod-penetrating suspension combined type steel formwork supporting system which comprises two cast-in-place lower cross beams, a mounting groove is formed in the lower end of each cast-in-place lower cross beam, a permanent steel protection cylinder is arranged in each mounting groove, a cast-in-situ bored pile is fixedly connected to the inner wall of each permanent steel protection cylinder, and the cast-in-situ bored pile is fixedly connected to the lower end of each cast-in-place lower cross beam. The lower ends of the two cast-in-place lower cross beams are jointly and fixedly connected with a plurality of distribution beams, the upper ends of the distribution beams are fixedly connected with a plurality of suspension main beams, a plurality of lower cross beam reserved hole channels are formed in the upper ends of the cast-in-place lower cross beams, and opposite-pulling suspension screws are arranged in the lower cross beam reserved hole channels. When the floor full framing is built, the vertical rod of the floor full framing is inserted into the bracket vertical rod sleeve above the distribution beam to be fixed, so that the upper load can be effectively layered and uniformly transmitted to the opposite-pulling suspension screw rod by means of the longitudinal and transverse lap joint arrangement of the distribution beam and the suspension main beam; and the overall stability of the template suspension system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of combined steel formwork support, in particular to a combined steel formwork support system with reserved channels for grouting and rod penetration. Background Art

[0002] In civil engineering, transportation, water conservancy and other projects, large-volume concrete structures are often used as the main load-bearing components. When pouring large-volume concrete, the bottom and sides of the concrete formwork are respectively subjected to large vertical and lateral pressures. In order to prevent the formwork from expanding and concrete leaking, higher requirements are placed on the formwork system.

[0003] When the large volume of concrete is cast-in-place on the ground, it is only necessary to reinforce its foundation to ensure the vertical bearing capacity requirements of the bottom formwork. Taking the high-pile beam-slab wharf constructed on dry land for port construction after cutting the beach as an example, the wharf pile foundation can be bored and cast-in-place piles, and the lower crossbeam of the wharf can be cast-in-place on the ground. However, considering the need to leave sufficient working surface for the port construction after cutting the beach, it is convenient for the construction of the slope protection of the harbor pool. After the construction of the lower crossbeam is completed, the earthwork of the harbor pool needs to be excavated, the beach is cut and retreated to form the harbor pool and the slope protection construction is carried out before the next process can be carried out. Therefore, after the installation of the prefabricated longitudinal beam is completed, the foundation concrete of the crane pier of the wharf is poured in the water. The complex working condition of high-altitude pouring is faced. At present, in the pouring process, the main method is to build a ground-to-ground full-hall bracket as the formwork support system, but when the beach is cut and retreated to build the port, the lower part of the template is an inclined slope, and at the same time, it is near the water, and it is impossible to build a stable ground-to-ground full-hall bracket. In view of this, the present application proposes a reserved channel grouting through-rod suspension combined steel formwork support system. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a reserved channel grouting rod-through-suspended combined steel formwork support system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The support system of the composite steel formwork with reserved channels for grouting and rod suspension comprises two cast-in-place lower cross beams, each of which is provided with an installation groove at the lower end, a permanent steel casing is provided in the installation groove, bored piles are fixedly connected to the inner wall of the permanent steel casing, a plurality of distribution beams are fixedly connected to the lower ends of the two cast-in-place lower cross beams, a plurality of suspended main beams are fixedly connected to the upper ends of the distribution beams, a plurality of reserved channels for the lower cross beams are provided at the upper ends of the cast-in-place lower cross beams, tension suspension screws are provided in the reserved channels of the lower cross beams, and the distribution beams are fixedly connected to the bracket upright sleeves.

[0007] Preferably, the upper end of the tension suspension screw is threadedly connected to a screw upper nut, and the lower end of the tension suspension screw is threadedly connected to a screw lower nut.

[0008] Preferably, a screw upper pad is provided between the screw upper nut and the cast-in-place lower cross beam, and a screw lower pad is provided between the screw lower nut and the suspension main beam.

[0009] Preferably, the tension suspension screw rod is a high-strength screw rod, and the tension suspension screw rod passes through a reserved channel of the lower cross beam.

[0010] Preferably, the distance between the upper end of the tension suspension screw and the upper end surface of the cast-in-place lower cross beam is 5 cm, and the distance between the tension suspension screw and the bottom surface of the lower flange of the I-beam of the suspension main beam is 5 cm.

[0011] Preferably, every two adjacent lower cross beam reserved channels are set as a group, and the spacing between each group of lower cross beam reserved channels is 1-2m.

[0012] The utility model has the following beneficial effects:

[0013] By adopting a composite steel formwork support system formed by a combination of tension suspension screws and suspension main beams, when building the ground-mounted full-floor bracket, it is only necessary to insert the vertical pole of the ground-mounted full-floor bracket into the bracket vertical pole sleeve above the distribution beam and fix it. In this way, the vertical and horizontal overlap arrangement of the distribution beam and the suspension main beam can be relied upon to effectively transfer the upper load in layers and evenly to the tension suspension screws, thereby ensuring the overall stability of the formwork suspension system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the top plan structure of the reserved channel grouting rod suspension combined steel formwork support system proposed by the utility model;

[0015] Figure 2 It is a side sectional structural schematic diagram of the reserved channel grouting rod suspension combined steel formwork support system proposed by the utility model;

[0016] Figure 3 It is a schematic diagram of the side cross-sectional structure of the tension suspension screw rod passing through the suspension main beam in the utility model;

[0017] Figure 4 It is a schematic diagram of the arrangement of the distribution beam and the bracket upright sleeve on the suspended main beam in the utility model.

[0018] In the figure: 1 bored cast-in-place piles, 2 cast-in-place lower cross beam, 3 reserved holes in lower cross beam, 4 reserved holes in lower flange, 5 bracket upright sleeve, 6 suspended main beam, 7 distribution beam, 8 screw upper nut, 9 screw upper pad, 10 screw lower nut, 11 screw lower pad, 12 reserved holes in upper flange, 13 tension suspension screw, 14 full-floor support bracket upright. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 The reserved channel grouting and rod suspension composite steel formwork support system includes two cast-in-place lower cross beams 2, each cast-in-place lower cross beam 2 is provided with an installation groove at the lower end, a permanent steel casing is provided in the installation groove, and a bored cast-in-place pile 1 is fixedly connected to the inner wall of the permanent steel casing, and a plurality of distribution beams 7 are commonly fixedly connected to the lower ends of the two cast-in-place lower cross beams 2, and a plurality of suspended main beams 6 are fixedly connected to the upper ends of the distribution beams 7, and a plurality of lower beam reserved channels 3 are provided at the upper ends of the cast-in-place lower cross beams 2, and a tension suspension screw 13 is provided in the lower beam reserved channels 3, and a bracket upright sleeve 5 is fixedly connected to the distribution beam 7.

[0021] The upper end of the tension suspension screw 13 is threadedly connected to the screw upper nut 8, and the lower end of the tension suspension screw 13 is threadedly connected to the screw lower nut 10. A screw upper pad 9 is provided between the screw upper nut 8 and the cast-in-place lower cross beam 2, and a screw lower pad 11 is provided between the screw lower nut 10 and the suspension main beam 6. The tension suspension screw 13 adopts a high-strength screw, and the tension suspension screw 13 passes through the reserved channel 3 of the lower cross beam.

[0022] Specifically, the tension suspension screw 13 is passed through the lower beam reserved channel 3, the upper flange reserved hole 12 and the lower flange reserved hole 4 from top to bottom in sequence, and a high-strength bolt is used as the screw upper nut 8 at the upper part, and the screw upper nut 8 is tightened and fixed to the upper thread of the screw. A high-strength bolt is used as the screw lower nut 10 at the lower part, and the screw lower nut 10 is tightened and fixed to the screw lower thread. The screw upper pad 9 and the screw lower pad 11 are respectively placed between the screw upper nut 8 and the upper flange of the suspension main beam 6, and the screw lower nut 10 and the lower flange of the suspension main beam 6, to increase the contact area between the nut and the flange.

[0023] The distance between the upper end of the tension suspension screw 13 and the upper end surface of the cast-in-place lower cross beam 2 is 5 cm, and the distance between the tension suspension screw 13 and the bottom surface of the lower flange of the I-beam of the suspension main beam 6 is 5 cm. It should be noted that the upper thread is completely exposed from the top surface of the cast-in-place lower cross beam 2 and the lower thread is placed in the reserved channel 3 of the lower cross beam. The lower thread is completely exposed from the bottom surface of the lower flange of the I-beam of the suspension main beam 6 and the upper thread is placed above the bottom surface of the lower flange of the I-beam of the suspension main beam 6, so as to ensure the bolt connection anchoring strength of the upper and lower ends of the tension suspension screw 13

[0024] Every two adjacent lower cross beam reserved channels 3 are set as a group, and the spacing between each group of lower cross beam reserved channels 3 is 1-2m.

[0025] In the present invention, when using the device, it is only necessary to insert the full-hall support bracket upright rod 14 into the bracket upright rod sleeve 5 for fixing. Figure 4 As shown, the distribution beam 7 is made of I-beam, perpendicular to the suspension main beam 6 and evenly arranged on the upper flange of the suspension main beam, and the distribution beam 7 is fixed to the upper flange of the suspension main beam by spot welding. The longitudinal and transverse overlap arrangement of the distribution beam 7 and the suspension main beam 6 effectively transfers the upper load to the tension suspension screw 13 in layers and evenly, ensuring the overall stability of the formwork suspension system. The bracket upright sleeve 5 is welded on the upper flange of the I-beam of the distribution beam 7 and evenly arranged according to the upper support.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-reserved channel grouting rod suspension composite steel formwork support system, comprising two cast-in-place lower beams (2), characterized in that: Each cast-in-place lower cross beam (2) is provided with an installation groove at the lower end, a permanent steel casing is provided in the installation groove, a bored cast-in-place pile (1) is fixedly connected to the inner wall of the permanent steel casing, a plurality of distribution beams (7) are fixedly connected to the lower ends of the two cast-in-place lower cross beams (2), a plurality of suspension main beams (6) are fixedly connected to the upper ends of the distribution beams (7), a plurality of lower cross beam reserved channels (3) are provided at the upper ends of the cast-in-place lower cross beams (2), a tension suspension screw (13) is provided in the lower cross beam reserved channels (3), and a bracket upright sleeve (5) is fixedly connected to the distribution beam (7).

2. The reserved channel grouting rod suspension combined steel formwork support system according to claim 1 is characterized in that: The upper end of the tension suspension screw (13) is threadedly connected to a screw upper nut (8), and the lower end of the tension suspension screw (13) is threadedly connected to a screw lower nut (10).

3. The reserved channel grouting rod suspension combined steel formwork support system according to claim 2 is characterized in that: A screw upper pad (9) is provided between the screw upper nut (8) and the cast-in-place lower cross beam (2), and a screw lower pad (11) is provided between the screw lower nut (10) and the suspension main beam (6).

4. The reserved channel grouting rod suspension combined steel formwork support system according to claim 1 is characterized in that: The tension suspension screw rod (13) is a high-strength screw rod, and the tension suspension screw rod (13) passes through the reserved hole (3) of the lower cross beam.

5. The reserved channel grouting rod suspension combined steel formwork support system according to claim 1 is characterized in that: The distance between the upper end of the tension suspension screw (13) and the upper end surface of the cast-in-place lower cross beam (2) is 5 cm, and the distance between the tension suspension screw (13) and the bottom surface of the lower flange of the I-beam of the suspension main beam (6) is 5 cm.

6. The reserved channel grouting rod suspension combined steel formwork support system according to claim 1 is characterized in that: Every two adjacent lower cross beam reserved channels (3) are set as a group, and the spacing between each group of lower cross beam reserved channels (3) is 1-2m.

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