Temporary sealing structure for post-cast strip of basement roof

Abstract

The utility model relates to the technical field of post-cast strip temporary sealing, in particular to a basement top plate post-cast strip temporary sealing structure which comprises an I-shaped supporting frame, a riffled plate, reinforcing ribs and a post-cast strip, an inclined supporting beam is arranged at the bottom end of the post-cast strip, and the inclined supporting beam and the I-shaped supporting frame form an included angle of 45 degrees, so that the pressure stress supported and borne by the post-cast strip is greatly improved, and the post-cast strip is prevented from falling off. Therefore, the temporary sealing stability of the post-cast strip is improved, and in the actual construction process, the design is reasonable and effective, and the practicability is high. The horizontal distance between the rib plates and the welding points of the rib plates in the ribbed steel plate is one half of the distance between the rib plates, and the horizontal distance between the reinforcing ribs at the bottom end of the riffled steel plate and the welding points of the rib plates is one half of the distance between the reinforcing ribs, so that in actual construction, the problem of sudden reduction of stress of weak structural connection parts can be avoided through the structural design; the structural integrity is protected, meanwhile, a stable and safe supporting effect is provided for the post-cast strip temporary sealing structure, and structural deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary closure of post-cast strips, in particular to a temporary closure structure for post-cast strips on the basement roof. Background Technique

[0002] Construction post-cast strips are temporary construction joints left at corresponding positions of the foundation slab, wall, and beam in accordance with design or construction specification requirements to prevent harmful cracks that may occur due to uneven temperature and shrinkage in the cast-in-place reinforced concrete structure. The structure is temporarily divided into several parts, and after the internal shrinkage of the components, the concrete of the construction joint is poured after a certain period of time to connect the structure into a whole. However, in the actual construction process, it is often necessary to temporarily close the post-cast strip due to construction technology or process problems to facilitate the smooth progress of construction.

[0003] For example, a temporary closure structure for post-cast strips on the basement roof disclosed in the authorized publication number CN216615983U. Aiming at the technical problem that the post-cast strip of the basement usually needs to be constructed after the overall structure of the building is completed, which affects the subsequent waterproofing of the basement exterior wall and the backfilling work of the backfill soil. It includes a roof slab and a post-cast strip. There is a cover plate above the post-cast strip. The cover plate includes a flat plate section and vertical plate sections provided at both ends of the flat plate section and on the same side of the flat plate section. The flat plate section is arranged directly above the post-cast strip, and the vertical plate sections support on the roof slab on both sides of the post-cast strip. There is a grouting pipe for pouring the post-cast strip on the flat plate section. This structure closes the post-cast strip in advance through the cover plate to prevent rainwater and soil from flowing into the basement, avoid the corrosion of the steel bars at the post-cast strip, and after the closure is completed, waterproofing, waterproof protection layer, and soil backfilling construction can be directly carried out, changing the traditional earthwork backfilling sequence, having the advantages of short cycle, good pouring quality of the post-cast strip, and convenient construction. However, this structure is relatively complex, does not take countermeasures for the weak parts of the structure, and the post-cast strip and the ground line are backfilled with soil, with a large gravity, which is not conducive to ensuring the stability of the post-cast strip. Therefore, we propose a temporary closure structure for post-cast strips on the basement roof, improving the structural connection method, and using high-strength XPS plastic plates to fill between the post-cast strip and the ground line, improving the stability and practicability of this structure. Content of the Utility Model

[0004] The purpose of the utility model is to provide a temporary closure structure for post-cast strips on the basement roof to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A temporary closing structure for the post-cast strip of the basement roof slab, comprising an I-shaped support frame, a diamond plate, stiffeners and a post-cast strip. The diamond plate is arranged at the top end of the I-shaped support frame, the stiffeners are arranged at the bottom end of the diamond plate, and the width of the post-cast strip is 800 mm.

[0007] Preferably, the height of the stiffeners is 50 mm, the distance between the stiffeners is 500 mm, and the horizontal distance between the welding points where the stiffeners are connected to the diamond plate is 250 mm.

[0008] Preferably, a diagonal bracing beam is arranged at the top end of the diamond plate, and a profiled steel plate is arranged at the top end of the diagonal bracing beam.

[0009] Preferably, the angle between the diagonal bracing beam and the I-shaped support frame is 45 degrees, and the angle between the diagonal bracing beams is 90 degrees.

[0010] Preferably, the profiled steel plate comprises a top plate and rib plates. The thickness of the top plate is 16 mm, the height of the rib plates is 180 mm, the thickness thereof is 10 mm, the distance between the rib plates is 300 mm, and the horizontal distance between the welding points where the rib plates are connected to the profiled steel plate is 150 mm.

[0011] Preferably, steel bar reinforcement areas are symmetrically arranged on both sides of the profiled steel plate. There are 2 first prestressed steel bars with a diameter of 12 mm and a spacing of 150 mm arranged at the upper part of the steel bar reinforcement area, and 2 second prestressed steel bars with a diameter of 10 mm and a spacing of 150 mm arranged at the lower part of the steel bar reinforcement area.

[0012] Preferably, a high-strength XPS plastic laminate is arranged at the top end of the profiled steel plate, and the top end of the high-strength XPS plastic laminate is the outdoor building ground level.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For the temporary closing structure of the post-cast strip of the basement roof slab, through the diagonal bracing beam arranged at the bottom end of the post-cast strip, wherein the angle between the diagonal bracing beam and the I-shaped support frame is set at 45 degrees, the compressive stress of its support and bearing is greatly improved, thereby enhancing the stability of the temporary closing of the post-cast strip. In the actual construction process, this design is reasonable and effective, and has strong practicability.

[0015] 2. For the temporary closing structure of the post-cast strip of the basement roof slab, through the fact that the horizontal distance between the rib plates of the profiled steel plate and their welding points is one half of the distance between the rib plates, and in addition, the horizontal distance between the stiffeners at the bottom end of the diamond plate and their welding points is one half of the distance between the stiffeners. In the actual construction, such a structural design can avoid the problem of sudden reduction of stress at the weak parts of the structural connection, not only protecting the structural integrity, but also providing a stable and safe support effect for the temporary closing structure of the post-cast strip and avoiding structural deformation. Description of the Drawings

[0016] Figure 1 Schematic diagram of the diagonal bracing beam structure of the present utility model;

[0017] Figure 2 Of the present utility model Figure 1 Schematic diagram of the sectional structure taken along line 4-4 in the present utility model;

[0018] Figure 3 Of the present utility model Figure 2 Schematic diagram of the sectional structure taken along line 4a-4a in the present utility model;

[0019] Figure 4 Of the present utility model Figure 2 Schematic diagram of the sectional structure taken along line 4b-4b in the present utility model.

[0020] In the figure: 100, I-shaped support frame; 101, diamond plate; 102, reinforcing rib; 103, post-cast strip; 104, diagonal bracing beam; 105, profiled steel plate; 200, top plate; 201, rib plate; 202, reinforcement area; 203, first prestressed steel bar; 204, second prestressed steel bar; 300, high-strength XPS plastic board; 301, building outdoor ground level; 302, welding point. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 As shown, a technical solution provided by the present utility model:

[0023] A temporary closing structure for the post-cast strip of the basement top plate, comprising an I-shaped support frame 100, diamond plate 101, reinforcing rib 102 and post-cast strip 103. The diamond plate 101 is arranged at the top end of the I-shaped support frame 100, the reinforcing rib 102 is arranged at the bottom end of the diamond plate 101, and the width of the post-cast strip 103 is 800 mm.

[0024] In this embodiment, preferably, the height of the reinforcing rib 102 is 50 mm, the distance between the reinforcing ribs 102 is 500 mm, and the horizontal distance of the welding point 302 where the reinforcing rib 102 is connected to the diamond plate 101 is 250 mm.

[0025] In this embodiment, preferably, a diagonal bracing beam 104 is arranged at the top end of the diamond plate 101, and a profiled steel plate 105 is arranged at the top end of the diagonal bracing beam 104.

[0026] In this embodiment, preferably, the angle between the diagonal bracing beam 104 and the I-shaped support frame 100 is 45 degrees, and the angle between the diagonal bracing beams 104 is 90 degrees.

[0027] In this embodiment, preferably, the ribbed steel plate 105 includes a top plate 200 and rib plates 201. The thickness of the top plate 200 is 16 mm, the height of the rib plates 201 is 180 mm, the thickness thereof is 10 mm, the distance between the rib plates 201 is 300 mm, and the horizontal distance of the welding point 302 where the rib plates 201 are connected to the ribbed steel plate 105 is 150 mm.

[0028] In this embodiment, preferably, reinforcement areas 202 are symmetrically arranged on both sides of the ribbed steel plate 105. There are 2 first prestressed steel bars 203 with a diameter of 12 mm and a spacing of 150 mm arranged on the upper part of the reinforcement area 202, and 2 second prestressed steel bars 204 with a diameter of 10 mm and a spacing of 150 mm arranged on the lower part of the reinforcement area 202.

[0029] In this embodiment, preferably, a high-strength XPS plastic composite board 300 is arranged at the top end of the ribbed steel plate 105, and the top end of the high-strength XPS plastic composite board 300 is the building outdoor ground level 301.

[0030] When a temporary closure structure for the post-cast strip of the basement top plate in this embodiment is in use, through the diagonal bracing beam 104 arranged at the bottom end of the post-cast strip 103, wherein the diagonal bracing beam 104 and the I-shaped support frame 100 are arranged at a 45-degree angle structure, the compressive stress of its support and bearing is greatly improved, thereby enhancing the stability of the temporary closure of the post-cast strip 103. In the actual construction process, this design is reasonable and effective, and has strong practicability. The horizontal distance between the rib plates 201 in the ribbed steel plate 105 and its welding point 302 is one-half of the distance between the rib plates 201. In addition, the horizontal distance between the reinforcing ribs 102 at the bottom end of the diamond plate 101 and its welding point 302 is one-half of the distance between the reinforcing ribs 102. In actual construction, such a structural design can avoid the sudden reduction of stress at the weak structural connection part, not only protecting the structural integrity, but also providing a stable and safe support effect for the temporary closure structure of the post-cast strip 103 and avoiding structural deformation.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A temporary closed structure for a post-cast strip of a basement roof, comprising an I-shaped support frame (100), a patterned steel plate (101), a reinforcing rib (102) and a post-cast strip (103), characterized in that: The patterned steel plate (101) is arranged at the top end of the I-shaped support frame (100), the reinforcing rib (102) is arranged at the bottom end of the patterned steel plate (101), and the width of the post-casting strip (103) is 800 mm.

2. A temporary closed structure for post-cast strips of basement top slab according to claim 1, characterized in that: The height of the reinforcing ribs (102) is 50 mm, the distance between the reinforcing ribs (102) is 500 mm, and the horizontal distance between the welding points (302) connecting the reinforcing ribs (102) and the patterned steel plate (101) is 250 mm.

3. A temporary closed structure for post-cast strips of basement top slab according to claim 2, characterized in that: A diagonal bracing beam (104) is arranged at the top end of the patterned steel plate (101), and a ribbed steel plate (105) is arranged at the top end of the diagonal bracing beam (104).

4. A temporary closed structure for post-cast strips of basement top slab according to claim 3, characterized in that: The diagonal bracing beams (104) and the I-shaped support frame (100) form an angle of 45 degrees, and the diagonal bracing beams (104) form an angle of 90 degrees.

5. The temporary closed structure of the post-cast strip of the basement top slab according to claim 3 is characterized by: The ribbed steel plate (105) comprises a top plate (200) and ribs (201), the top plate (200) is 16 mm thick, the ribs (201) are 180 mm high and 10 mm thick, the distance between the ribs (201) is 300 mm, and the horizontal distance between the welding points (302) connecting the ribs (201) and the ribbed steel plate (105) is 150 mm.

6. A temporary closed structure for post-cast strips of basement top slab according to claim 5, characterized in that: The ribbed steel plate (105) is symmetrically provided with reinforcement areas (202) on both sides, two first prestressed steel bars (203) with a diameter of 12 mm and a spacing of 150 mm are provided on the upper part of the reinforcement area (202), and two second prestressed steel bars (204) with a diameter of 10 mm and a spacing of 150 mm are provided on the lower part of the reinforcement area (202).

7. A temporary closed structure for post-cast strips of basement top slab according to claim 6, characterized in that: A high-strength XPS plastic board (300) is arranged on the top of the ribbed steel plate (105), and the top of the high-strength XPS plastic board (300) is the outdoor floor (301) of the building.

Images