A prefabricated sandwich wall panel construction and method of construction suitable for use in a tilt-up beam

Abstract

The application relates to a prefabricated sandwich heat-insulation wallboard structure and construction method suitable for an upturned beam, and belongs to the technical field of prefabricated components. The prefabricated sandwich heat-insulation wallboard structure suitable for the upturned beam is characterized in that a stirrup is protruded upwards from a top embedded part of an inner leaf plate of a prefabricated sandwich heat-insulation wallboard; a slot not shorter than the protruding length of the stirrup is arranged at the bottom of the inner leaf plate, a connecting nut for installation cooperation with a height adjustment screw rod is embedded at the bottom of the inner leaf plate, a bottom gasket is arranged between the height adjustment screw rod and a cast-in-place floor slab; the bottom gasket and the height adjustment screw rod are detachable components; no additional inserted steel bars are arranged in the stirrup during on-site construction.

Description

TECHNICAL FIELD

[0001] The present application relates to a prefabricated sandwich thermal insulation wallboard structure and construction method suitable for upturned beams, and belongs to the technical field of prefabricated components. BACKGROUND

[0002] The upturned beam generally refers to a beam extending upwards to above the upper floor slab and to below the window. In the prior art, the upturned beam of the double-sided laminated sandwich thermal insulation wall has the following defects, as shown in the drawings: Figure 1

[0003] 1. Hoops 4 and longitudinal reinforcement 9 need to be pre-buried at corresponding positions above and below the floor slab, and the large number of hoops 4 and longitudinal reinforcement 9 results in low production efficiency of the prefabricated wallboard;

[0004] 2. Hoops 4 above and below the floor slab need to be additionally inserted with reinforcement 10 at the installation site, and the small and dense spacing of the reinforcement 10 results in great difficulty in construction and installation;

[0005] 3. The entire wallboard has a large amount of steel and consumes a large amount of materials, resulting in waste of resources. SUMMARY

[0006] The present application aims to provide a prefabricated sandwich thermal insulation wallboard structure and construction method suitable for upturned beams, which reforms the structure of the upturned beam at the connection position of the floor slab, pre-buries hoops only at the connection position, avoids the trouble of installing reinforcement at the site, reduces the number of longitudinal reinforcement, reduces the amount of material consumption, and avoids waste of resources.

[0007] The present application adopts the following technical solutions:

[0008] A prefabricated sandwich thermal insulation wallboard structure suitable for upturned beams, wherein a hoop 4 is pre-buried in the inner top part of the inner leaf plate of the prefabricated sandwich thermal insulation wallboard and extends upwards outside the prefabricated sandwich thermal insulation wallboard; a slot not shorter than the extension length of the hoop 4 is provided at the bottom of the inner leaf plate of the prefabricated sandwich thermal insulation wallboard, a connection nut 5 for installation and cooperation with a height adjustment screw 6 is pre-buried at the bottom of the inner leaf plate, and a bottom gasket 7 is provided between the height adjustment screw 6 and the cast-in-place floor slab; the bottom gasket 7 and the height adjustment screw 6 are detachable components; and no reinforcement 10 is additionally provided in the hoop 4 during on-site construction.

[0009] Preferably, the prefabricated sandwich thermal insulation wallboard is a double-sided laminated sandwich thermal insulation wallboard 1 or a fully prefabricated sandwich thermal insulation wallboard 1'.

[0010] Preferably, the bottom gasket 7 is made of wood or high-strength plastic.

[0011] Preferably, only one longitudinal reinforcement 9 is provided in the part of the hoop 4 pre-buried in the inner leaf plate during factory prefabrication, and the remaining longitudinal reinforcement 9 is provided at the cast-in-place position.​

[0012] Preferably, the stirrup 4 is square-shaped, and its size is equal to the beam section.

[0013] A construction method of prefabricated sandwich thermal insulation wallboard structure suitable for upturned beam, comprising the following steps:

[0014] S1, the stirrup 4 is partially embedded in the inner leaf plate of the prefabricated sandwich thermal insulation wallboard, partially protrudes upwards, and the whole is processed to form an integral prefabricated component

[0015] S2, the prefabricated sandwich thermal insulation wallboard and the composite floor 3 are installed, the first concrete 2 is poured, and the stirrup 4 protrudes from the structure surface of the floor elevation;

[0016] S3, install the upper prefabricated sandwich thermal insulation wallboard, install the elevation adjusting screw 6 at the adapter nut 5, place the bottom gasket 7 at the position corresponding to the floor elevation position, and make the elevation adjusting screw 6 support on the bottom gasket 7 to adjust the verticality and elevation.

[0017] S4, install the wallboard inclined support, after fixing the upper prefabricated sandwich thermal insulation wallboard, remove the elevation adjusting screw 6 and set the cast-in-place formwork system 8, and pour the second concrete.

[0018] The beneficial effects of the present application are:

[0019] 1) The structure of the upturned beam at the connection position of the floor is modified, and the stirrup is only pre-embedded at the connection position, so that the installation of the reinforcing bar can be avoided on site;

[0020] 2) The number of longitudinal reinforcement can also be reduced, the amount of material used can be reduced, and resource waste can be avoided.

[0021] 3) The upturned beam becomes a whole structure, which does not need to be split into two beams for separate prefabrication when prefabricated in the factory, simplifying the prefabrication process;

[0022] 4) The stability of the upturned beam structure is ensured;

[0023] 5) The design of the reserved notch, the installation of the adapter nut and the elevation adjusting screw is ingenious, and after the installation of the elevation adjusting screw, the elevation adjusting screw can be used as a bearing point of the inner leaf plate during the transportation, stacking and installation of the component, ensuring the balanced stress of the wallboard inside and outside;

[0024] 6) The elevation adjusting screw can be reused, saving materials. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the prefabricated sandwich thermal insulation wallboard structure suitable for the upturned beam introduced in the background art.

[0026] Figure 2is the front view (with window) of the prefabricated sandwich thermal insulation wallboard structure suitable for the upturned beam of the present application.

[0027] Figure 3 is the side sectional view (with window) of the prefabricated sandwich thermal insulation wallboard structure suitable for the upturned beam in the first embodiment of the present application.

[0028] Figure 4 is the side sectional view (with window) of the prefabricated sandwich thermal insulation wallboard structure suitable for the upturned beam in the second embodiment of the present application.

[0029] Figure 5 is the schematic diagram of construction step 1.

[0030] Figure 6 is the schematic diagram of construction step 2.

[0031] Figure 7 is the schematic diagram of construction step 3.

[0032] Figure 8 is the schematic diagram of construction step 4.

[0033] In the figure, 1. double-sided laminated sandwich thermal insulation wallboard, 1'. fully prefabricated sandwich thermal insulation wallboard, 2. first cast-in-place concrete, 3. prefabricated floor slab, 4. stirrup, 5. embedded adapter nut, 6. elevation adjustment screw, 7. bottom spacer, 8. cast-in-place formwork system, 9. longitudinal reinforcement, 10. additional site-inserted reinforcement. DETAILED DESCRIPTION

[0034] The present application will be further described below in conjunction with the drawings and specific embodiments.

[0035] Embodiment One:

[0036] Referring to Figures 2-8 , a prefabricated sandwich thermal insulation wallboard structure suitable for the upturned beam, the inner leaf plate of the prefabricated sandwich thermal insulation wallboard has a stirrup 4 embedded in the top part and protruding upward outside the prefabricated sandwich thermal insulation wallboard; the inner leaf plate of the prefabricated sandwich thermal insulation wallboard is provided with a slot not shorter than the protruding length of the stirrup 4, and a adapter nut 5 is embedded in the bottom part of the inner leaf plate for installation and cooperation with the elevation adjustment screw 6, and a bottom spacer 7 is provided between the elevation adjustment screw 6 and the cast-in-place floor slab; the bottom spacer 7 and the elevation adjustment screw 6 are detachable components; during site construction, no additional reinforcement 10 is provided in the stirrup 4.

[0037] In this embodiment, referring to Figure 3 , the prefabricated sandwich thermal insulation wallboard is a double-sided laminated sandwich thermal insulation wallboard 1.

[0038] In this embodiment, referring to Figure 6 , the bottom spacer 7 is made of wood or high-strength plastic material.

[0039] In this embodiment, referring to Figure 5 , the stirrup 4 is pre-embedded in the inner leaf plate when the factory prefabricates. Figure 5 In this embodiment, referring to , the stirrup 4 is square-shaped, and its size is equal to the beam section.

[0040] When the construction is specifically carried out on site, the following steps are included:

[0041] S1, the stirrup 4 is partially pre-embedded in the inner leaf plate of the prefabricated sandwich thermal insulation wall panel, and partially extends upward, the whole is processed to form an integral prefabricated component, and this step is completed in the factory;

[0042] S2, the prefabricated sandwich thermal insulation wall panel and the composite floor slab 3 are installed and completed, the first pouring of concrete 2 is carried out, and the stirrup 4 extends out of the structural surface of the floor level;

[0043] S3, the upper prefabricated sandwich thermal insulation wall panel is installed, the height adjustment screw rod 6 is installed at the adapter nut 5, the bottom gasket 7 is placed at the corresponding position of the floor level position, and the height adjustment screw rod 6 is supported on the bottom gasket 7, and the verticality and height are adjusted;

[0044] It should be noted that the height adjustment screw rod 6 is not only used during the installation on site, but also can be used as a supporting point of the inner leaf plate during the transportation and stacking of the component, so as to ensure the balanced stress of the wall panel inside and outside.

[0045] S4, the wall panel inclined support is installed, after the upper prefabricated sandwich thermal insulation wall panel is fixed, the height adjustment screw rod 6 is removed, and the cast-in-place formwork system 8 is arranged, and the second pouring of concrete is carried out.

[0046] The steps S2-S4 are all completed on the installation site.

[0047] Embodiment two:

[0048] The difference from the embodiment one is that, referring to Figure 4 , or the full prefabricated sandwich thermal insulation wall panel 1'. The rest is the same as the embodiment one.

[0049] The present application reforms the structure of the upturned beam at the connection position of the floor slab, only pre-embeds the stirrup at the connection position, and the trouble of installing the reinforcing bar can be avoided on site; the number of longitudinal bars can be reduced, the use amount of materials can be reduced, resource waste can be avoided; the upturned beam becomes a whole structure, and it is not necessary to split into two beams for separate prefabrication when prefabricated in the factory, so that the prefabrication process is simplified; the stability of the upturned beam structure is ensured; the design of the reserved notch, the installation of the adapter nut and the height adjustment screw rod is ingenious, after the installation of the height adjustment screw rod, the height adjustment screw rod can be used as a supporting point of the inner leaf plate during the transportation, stacking and installation of the component, so as to ensure the balanced stress of the wall panel inside and outside; the height adjustment screw rod can be reused, and the use of materials is saved.

[0050] The above are two preferred embodiments of the present application, and those skilled in the art can make various changes or improvements on the basis of the same, and these changes or improvements should all belong to the scope of protection of the present application without departing from the general concept of the present application.

Claims

1. A construction method for a precast sandwich insulated wall panel structure suitable for upward-turning beams, characterized in that: The inner leaf plate of the precast sandwich insulation wall panel has a pre-embedded part extending upward beyond the precast sandwich insulation wall panel and exceeding the design height of the upper floor slab (4); the bottom of the inner leaf plate of the precast sandwich insulation wall panel is provided with a slot not shorter than the extension length of the stirrup (4); a connecting nut (5) for installation and cooperation with the elevation adjustment screw (6) is pre-embedded at the bottom of the inner leaf plate; a bottom gasket (7) is provided between the elevation adjustment screw (6) and the cast-in-place floor slab; the bottom gasket (7) and the elevation adjustment screw (6) are detachable parts; during on-site construction, no additional reinforcing bars (10) are set inside the stirrup (4); the construction method includes the following steps: S1, the stirrups (4) are partially embedded in the inner leaf slab of the precast sandwich insulated wall panel, and partially extend upwards. The entire process is completed to form an integral precast component. S2. After the prefabricated sandwich insulated wall panels and composite floor slabs (3) are installed, the first concrete (2) is poured and the stirrups (4) extend out of the structural surface of the floor level. S3. Install the upper prefabricated sandwich insulation wall panel, install the elevation adjustment screw (6) at the connecting nut (5), place the bottom shim (7) at the corresponding position of the floor elevation, and let the elevation adjustment screw (6) support the bottom shim (7) to adjust the verticality and elevation; S4. Install the wall panel diagonal support, fix the upper precast sandwich insulation wall panel, remove the elevation adjustment screw (6) and set up the cast-in-place formwork system (8), and pour the second concrete.

2. The construction method for prefabricated sandwich insulated wall panel structures applicable to upward-turning beams as described in claim 1, characterized in that: The prefabricated sandwich insulation wall panel is a double-sided laminated sandwich insulation wall panel (1) or a fully prefabricated sandwich insulation wall panel (1').

3. The construction method for prefabricated sandwich insulated wall panel structures applicable to upward-turning beams as described in claim 1, characterized in that: The bottom pad (7) is made of wood or high-strength plastic.

4. The construction method for prefabricated sandwich insulated wall panel structures applicable to upward-turning beams as described in claim 1, characterized in that: The portion of the stirrups (4) prefabricated in the factory and embedded within the inner leaf plate has only one longitudinal bar (9), while the remaining longitudinal bars (9) are set in the cast-in-place portion.

5. The construction method for precast sandwich insulated wall panel structures applicable to upward-turning beams as described in claim 1, characterized in that: The stirrups (4) are square and their dimensions are equal to those of the beam cross section.

Images