Basement top plate plugging structure

Abstract

The utility model discloses a basement roof plugging structure, which relates to the technical field of building structures, and is characterized in that a laminated slab is jointly formed by a precast slab and a cast-in-place slab formed by a cast-in-place layer, a traditional reinforced concrete plugging strip is replaced to plug an opening of a basement roof, the number of times of mold opening is reduced, the site construction process is simplified, and the construction period is shortened; the problem that in the prior art, a cuboid-shaped reinforced concrete plugging strip cannot be conveniently matched with a special-shaped opening of a basement top plate is solved. The polystyrene foam is arranged between the inner wall of the flanging and the laminated slab, the polystyrene foam serves as a template when the cast-in-place layer forms the cast-in-place slab, the laminated slab can be isolated from the inner wall of the flanging, the cover plate can be conveniently dismantled after war, and follow-up normal use of an air shaft and an electric shaft is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a basement top plate blocking structure. Background Art

[0002] The air shaft and the electric shaft are both important components of the basement roof, each of which has different functions and roles, and provides guarantees for the normal operation of the building and the safety of personnel. However, in wartime, in order to ensure that these passages are not used by the enemy, to prevent the enemy from using them to enter the building, and to reduce the damage to the building when it is attacked, they need to be blocked to ensure their concealment and safety.

[0003] The traditional plugging method is to use customized reinforced concrete plugging strips with a uniform modulus for plugging. This method is suitable for more conventional rectangular openings. In order to maximize the utilization rate of building space, the air shaft and the power shaft need to be set close to the beam edge and the wall edge. The openings of the air shaft and the power shaft sometimes appear in non-rectangular shapes, generally right-angled trapezoids. For such special-shaped openings, the use of reinforced concrete plugging strips with a uniform modulus will result in a large mold opening, which not only increases costs, but also wastes work hours and is inconvenient for construction; the use of traditional cast-in-place plugging panels is affected by the suspended basement at the bottom, making it inconvenient to build a support structure, affecting the construction progress. Utility Model Content

[0004] The main purpose of the utility model is to provide a basement roof blocking structure to solve the problem in the prior art that the rectangular reinforced concrete blocking strips are inconvenient to adapt to the special-shaped openings of the basement roof, and to adopt a solution combining prefabricated panels and cast-in-place structures to avoid the problem of re-establishing a supporting structure from the inside of the basement, and to use prefabricated panels as bottom supporting templates to improve construction efficiency.

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

[0006] A basement top plate blocking structure, comprising:

[0007] The flange is arranged around the basement ceiling opening and extends vertically to the ground, and the inner wall of the flange is provided with a lug;

[0008] The support assembly has a bottom end buried in the pick-up ear and a top end extending to the top of the pick-up ear to form a positioning rod;

[0009] The prefabricated board matches the opening shape of the basement top board, and the edge of the prefabricated board is provided with a positioning hole for the positioning rod to pass through;

[0010] The cast-in-place layer is arranged above the top surface of the precast slab, and the steel hanging rings connected to the precast slab extend above the cast-in-place layer;

[0011] The backfill soil layer is laid above the cast-in-place layer.

[0012] As a further improvement of the utility model, the basement top plate opening is in a right-angle trapezoidal shape, the flange is a cylindrical structure, and the channel formed by the inner wall of the flange is connected to the basement top plate opening.

[0013] As a further improvement of the present invention, the pick ear extends horizontally to the outside of the inner wall of the flange to form a protruding structure.

[0014] As a further improvement of the present invention, the support assembly includes an angle steel, a positioning rod and an anchor bar. The angle steel is arranged at the ridge line position of the cantilever ear. One end of the anchor bar is fixed to the angle steel, and the other end extends into the cantilever ear and is fixedly connected to the cantilever ear. One end of the positioning rod is fixed to the angle steel, and the other end extends outside the cantilever ear.

[0015] As a further improvement of the utility model, a plurality of anchor bars arranged at intervals are connected to the angle steel, and a plurality of positioning rods arranged at intervals are connected to the angle steel.

[0016] As a further improvement of the present invention, the prefabricated plate is a right-angled trapezoidal plate, and positioning holes corresponding to the positioning rods are opened on the prefabricated plate.

[0017] As a further improvement of the utility model, the precast panel includes a concrete layer, truss bars and steel lifting rings, one end of the truss bars is buried in the concrete layer, and the other end extends above the top surface of the concrete layer to establish a connection with the cast-in-place layer; one end of the steel lifting ring is buried in the concrete layer, and the other end extends above the top surface of the concrete layer.

[0018] As a further improvement of the utility model, the prefabricated board and the cast-in-place layer constitute a composite board, and polystyrene foam is filled between the composite board and the inner wall of the flange.

[0019] As a further improvement of the utility model, waterproof membrane is attached to the edge of the top surface of the cast-in-place layer and the inner wall of the flange above the top surface of the cast-in-place layer. The waterproof membrane is distributed circumferentially along the inner wall of the flange and is arranged to avoid the steel ring.

[0020] As a further improvement of the utility model, the top end of the steel lifting ring extends into the backfill soil.

[0021] The utility model forms a composite slab by using a prefabricated slab and a cast-in-situ layer to form a composite slab, which replaces the traditional reinforced concrete sealing strip to seal the basement top slab opening, reduces the number of mold openings, simplifies the on-site construction process, and shortens the construction period.

[0022] The utility model arranges polystyrene foam between the inner wall of the flange and the composite board. The polystyrene foam serves as a template when the cast-in-place layer forms the cast-in-place board, and can also isolate the composite board from the inner wall of the flange, which is convenient for the removal of the cover plate after the war and the subsequent normal use of the air shaft and the power shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view schematic diagram of the basement roof blocking structure in an embodiment of the utility model.

[0024] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle.

[0025] Figure 3 for Figure 1 Schematic diagram of the cross section at BB in the middle.

[0026] Figure 4 It is a schematic diagram of the structure of the prefabricated plate in the embodiment of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the manufacturing components in the embodiment of the utility model.

[0028] Explanation of the numbers (in order of first appearance): 1. Inclined beam; 2. Straight beam; 3. Basement ceiling; 4. Flange; 41. Lug; 5. Support assembly; 51. Angle steel; 52. Positioning rod; 53. Anchor bar; 6. Composite slab; 61. Precast slab; 611. Concrete layer; 612. Truss bar; 613. Steel lifting ring; 614. Positioning hole; 62. Cast-in-place slab; 7. Polystyrene foam; 8. Waterproof membrane; 9. Backfill soil. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] like Figure 1 As shown, this embodiment provides an embodiment of a basement roof sealing structure. In this embodiment, the basement roof sealing structure mainly includes a flange 4, a support assembly 5, a composite plate 6 and 9 layers of backfill soil. The flange 4 is arranged around the opening of the basement roof 3 and extends vertically to the ground to form a cylindrical structure. The inner wall of the flange 4 is provided with a cantilever 41, the support assembly 5 is installed on the cantilever 41, the bottom edge of the composite plate 6 abuts against the cantilever 41, and the composite plate 6 is positioned by the support assembly 5. The 9 layers of backfill soil are located in the cylindrical structure formed by the flange 4 and cover the composite plate 6.

[0033] like Figure 1 and Figure 2 As shown, the basement top plate 3 is arranged on the upper side of the frame column, the inclined beam 1 and the straight beam 2; the flange 4 is cast above the basement top plate 3 and distributed corresponding to the opening position of the basement top plate 3.

[0034] The flange 4 is connected to the edge of the opening of the basement top plate 3. The opening of the basement top plate 3 is a right-angled trapezoid. The flange 4 is a cylindrical structure. The cross-section of the inner wall of the flange 4 along the horizontal direction is also a right-angled trapezoid. The channel formed inside the cylindrical structure of the inner wall of the flange 4 is connected to the opening of the basement top plate 3.

[0035] like Figure 2 and Figure 3 As shown, the ears 41 extend horizontally to the outside of the inner wall of the flange 4 to form a protruding structure. The ears 41 are continuously distributed along the inner side of the flange 4. Looking down from the top, the ears 41 set on the inner wall of the flange 4 are in the shape of a right-angled trapezoidal frame, and the cross-section of the ears 41 along the vertical direction is rectangular.

[0036] In addition, the bottom end of the support assembly 5 is buried in the cantilever ear 41, and the top end extends to the top of the cantilever ear 41 to form a positioning rod 52; a positioning hole 614 is opened on the edge of the corresponding composite plate 6, so that the positioning rod 52 cooperates with the positioning hole 614. On the one hand, it can quickly locate the position of the composite plate 6 during construction, and on the other hand, it can restrict the displacement of the composite plate 6 in the horizontal direction, maintain the position of the composite plate 6, and ensure its stability during and after construction.

[0037] like Figure 4 and Figure 5 As shown, the support assembly 5 includes an angle steel 51, a positioning rod 52 and an anchor bar 53. The angle steel 51 is arranged at the ridge position of the cantilever ear 41. One end of the anchor bar 53 is fixed to the angle steel 51, and the other end extends into the cantilever ear 41 and is fixedly connected to the cantilever ear 41. One end of the positioning rod 52 is fixed to the angle steel 51, and the other end extends to the outside of the cantilever ear 41.

[0038] Correspondingly, the support assembly 5 in this embodiment includes two angle steels 51, one angle steel 51 is distributed on an inclined waist of the right-angled trapezoidal frame-shaped lug 41, and the other angle steel 51 is distributed on a right-angled waist of the right-angled trapezoidal frame-shaped lug 41, matching the inclined waist and right-angled waist distribution on the composite plate 6.

[0039] In this embodiment, six positioning rods 52 are provided, and three are arranged at intervals on the horizontal limb of each angle steel 51; correspondingly, each angle steel 51 is also connected to a plurality of anchor bars 53, and the plurality of anchor bars 53 are arranged at intervals along the axis of the angle steel 51.

[0040] The positioning rod 52 and the anchor bar 53 can be fixed to the corresponding angle steel 51 by welding, and the anchor bar 53 can be connected to the skeleton steel bar inside the ear 41 to increase the connection strength.

[0041] The angle steel 51 in this embodiment can be made of high alloy angle steel to ensure its mechanical properties and corrosion resistance to meet the requirements of the opening position of the basement top plate 3.

[0042] During installation, the bottom surface of the composite plate 6 abuts against the angle steel 51 , thereby effectively dispersing the force, reducing local stress, and improving the support stability of the composite plate 6 .

[0043] like Figure 3 and Figure 4As shown, the composite slab 6 includes a precast slab 61 and a cast-in-place slab 62. The precast slab 61 matches the opening shape of the basement top slab 3. A positioning hole 614 is opened on the edge of the precast slab 61 for the positioning rod 52 to pass through. The cast-in-place slab 62 is constructed through a cast-in-place layer and is arranged above the top surface of the precast slab 61. The steel hanging ring 613 connected to the precast slab 61 extends above the cast-in-place layer.

[0044] In this embodiment, the precast plate 61 is a right-angled trapezoidal plate, and the corresponding cast-in-place plate 62 is also a right-angled trapezoidal plate of the same shape as the precast plate 61. The precast plate 61 is provided with positioning holes 614 corresponding to the positioning rods 52. The positioning rods 52 penetrate into the cast-in-place plate 62 through the positioning holes 614 distributed on the precast plate 61. In addition, the positioning holes 614 are distributed at the four corner positions of the precast plate 61, the edge positions corresponding to the midpoint of the inclined waist, and the edge positions corresponding to the midpoint of the right-angle waist.

[0045] like Figure 4 As shown, the precast panel 61 includes a concrete layer 611, a truss bar 612 and a steel ring 613. One end of the truss bar 612 is buried in the concrete layer 611, and the other end extends to above the top surface of the concrete layer 611 to establish a connection with the cast-in-place layer; one end of the steel ring 613 is buried in the concrete layer 611, and the other end extends to above the top surface of the concrete layer 611.

[0046] In the present embodiment, it should be pointed out that there are multiple groups of truss bars 612, which are distributed in sequence in the distribution direction of the right-angle waist of the composite plate 6, and the arrangement direction of each group of truss bars 612 is perpendicular to the right-angle waist of the composite plate 6.

[0047] In this embodiment, a plurality of steel lifting rings 613 are provided, two of which are distributed at the right angle waist edge of the prefabricated plate 61, and two of which are distributed at the inclined waist edge of the prefabricated plate 61. The top of the steel lifting ring 613 extends into the backfill soil 9. It is convenient to lift the composite plate 6 when dismantling the composite plate 6 after the war.

[0048] A polystyrene foam 7 is arranged between the flange 4 and the composite plate 6 . The polystyrene foam 7 surrounds the composite plate 6 . The top elevation of the cast-in-place plate 62 is the same as the top elevation of the polystyrene foam 7 .

[0049] The polystyrene foam 7 serves as a template for the cast-in-place layer to form the cast-in-place slab 62, and can also isolate the composite slab 6 from the inner wall of the flange 4, making it easy to remove the cover plate after the war and facilitate the subsequent normal use of the wind shaft and the power shaft.

[0050] It is understandable that the structure filled between the flange 4 and the laminated plate 6 may also be made of other materials, such as polyurethane rigid foam, phenolic foam, etc. in the prior art.

[0051] Among them, polyurethane rigid foam is a high-efficiency and energy-saving building waterproof material in the existing technology. Its closed-cell rate can reach more than 90%. It has excellent thermal insulation, waterproof, moisture-proof, heat insulation and other properties, and can effectively block the transfer of moisture and temperature.

[0052] Phenolic foam is a new type of polymer synthetic material in the prior art. It has low thermal conductivity, good thermal insulation effect, is non-toxic and harmless, environmentally friendly and energy-saving, and can effectively block the transfer of heat and gas. Phenolic foam also has excellent fire resistance and anti-aging properties, and can maintain its performance and service life for a long time.

[0053] The waterproofing membrane 8 is attached to the edge of the top surface of the cast-in-place layer and the inner wall of the flange 4 above the top surface of the cast-in-place layer. The waterproofing membrane 8 is distributed circumferentially along the inner wall of the flange 4 and is arranged to avoid the steel ring 613.

[0054] Specifically, Figure 2 As shown, a waterproof roll 8 is arranged between the laminated board 6, the polystyrene foam 7 and the backfill soil 9, which is arranged around the inner wall of the flange 4 and is bent 90° at the corner and then laid on the upper side of the laminated board 6 to prevent the upper accumulated water from seeping into the cylindrical structure formed by the flange 4.

[0055] The backfill soil 9 covers the top of the composite board 6 and can be leveled with the outdoor floor. When the backfill soil 9 is constructed, before the backfill soil is backfilled, the debris and water in the flange 4 should be removed to avoid affecting the backfill quality. The backfill soil 9 should be filled in layers, and the thickness of each layer should not be too large to avoid compaction difficulties. For the backfill soil 9 with special requirements, special treatment should be carried out according to the requirements, such as disinfection, adding a curing agent, etc.

[0056] After backfilling is completed, acceptance should be carried out as required to ensure that the quality of backfilling meets the requirements.

[0057] The precast plate 61 and the cast-in-place plate 62 formed by the cast-in-place layer together form the composite plate 6, which replaces the traditional reinforced concrete sealing strip to seal the opening of the basement top plate 3, reduces the number of mold openings, simplifies the on-site construction process, and shortens the construction period. In addition, the connection between the precast plate 61 and the cast-in-place plate 62 is established by using truss bars 612 to improve the strength of the entire composite plate 6.

[0058] The above detailed description of the specific implementation of the utility model is only used as an example, and the utility model is not limited to the specific implementation described above. For those skilled in the art, any equivalent modification or substitution of the utility model is also within the scope of the utility model. Therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the utility model should be included in the scope of the utility model.

Claims

1. A basement roof blocking structure, characterized in that: include: The flange is arranged around the basement ceiling opening and extends vertically to the ground, and the inner wall of the flange is provided with a lug; The support assembly has a bottom end buried in the pick-up ear and a top end extending to the top of the pick-up ear to form a positioning rod; The prefabricated board matches the opening shape of the basement top plate, and the edge of the prefabricated board is provided with a positioning hole for the positioning rod to pass through; The cast-in-place layer is arranged above the top surface of the precast slab, and the steel hanging rings connected to the precast slab extend above the cast-in-place layer; The backfill soil layer is laid above the cast-in-place layer.

2. The basement roof sealing structure according to claim 1, characterized in that: The basement top plate opening is in the shape of a right-angle trapezoid, the flange is a cylindrical structure, and a channel formed by the inner wall of the flange is connected to the basement top plate opening.

3. The basement roof sealing structure according to claim 2, characterized in that: The raised ears extend horizontally to the outside of the inner wall of the flange to form a protruding structure.

4. The basement roof sealing structure according to claim 1, characterized in that: The support assembly includes an angle steel, a positioning rod and an anchor bar. The angle steel is arranged at the ridge line position of the cantilever ear. One end of the anchor bar is fixed to the angle steel, and the other end extends into the cantilever ear and is fixedly connected to the cantilever ear. One end of the positioning rod is fixed to the angle steel, and the other end extends to the outside of the cantilever ear.

5. The basement roof sealing structure according to claim 4, characterized in that: The angle steel is connected to a plurality of anchor bars arranged at intervals, and the angle steel is connected to a plurality of positioning rods arranged at intervals.

6. The basement roof sealing structure according to claim 1, characterized in that: The prefabricated plate is a right-angle trapezoidal plate, and positioning holes corresponding to the positioning rods are opened on the prefabricated plate.

7. The basement roof sealing structure according to claim 1 or 6, characterized in that: The precast panel includes a concrete layer, truss bars and steel rings. One end of the truss bars is buried in the concrete layer, and the other end extends above the top surface of the concrete layer to establish a connection with the cast-in-place layer; one end of the steel ring is buried in the concrete layer, and the other end extends above the top surface of the concrete layer.

8. The basement roof sealing structure according to claim 7, characterized in that: The prefabricated board and the cast-in-place layer form a composite board, and polystyrene foam is filled between the composite board and the inner wall of the flange.

9. The basement roof sealing structure according to claim 1, characterized in that: The waterproofing coiled material is attached to the edge of the top surface of the cast-in-place layer and the inner wall of the flange above the top surface of the cast-in-place layer. The waterproofing coiled material is distributed circumferentially along the inner wall of the flange and is arranged to avoid the steel hanging ring.

10. The basement roof sealing structure according to claim 1, characterized in that: The top end of the steel lifting ring extends into the backfill soil.

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