Prefabricated exterior wall panel structure and installation method for high-performance grain depot

Abstract

The present invention relates to a prefabricated exterior wall panel structure and an installation method for a high-performance grain depot. The prefabricated exterior wall panel structure includes an L-shaped concrete precast wall and a horizontal precast wall panel; an installation method for a prefabricated exterior wall panel structure, which comprises the following steps: orderly installing the main structure columns of the granary on the foundation; then sequentially placing the L-shaped concrete precast walls inside the main structure columns of the granary and pouring them, so that the L-shaped concrete precast walls are connected to each other and fixedly connected to the foundation; installing the horizontal precast wall panels step by step from bottom to top until the stacked horizontal precast wall panels reach under the granary roof, thus completing the assembly of the prefabricated exterior wall. The beneficial effects of the present invention are as follows: it realizes full prefabrication, has a fast construction speed, a high integration degree, is beneficial to environmental protection, and can ensure the construction quality.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated buildings, in particular to a prefabricated exterior wall panel structure for a high-performance grain depot, an installation method thereof, and a grain depot. Background Art

[0002] The construction of high-standard granaries has put forward higher requirements for the thermal insulation performance and airtight performance of grain factories. At present, the eaves height of ordinary grain warehouses is generally required to be greater than 10m. The exterior walls are usually built with sintered common bricks with a thickness of 500-600mm, and reinforced concrete ring beams are arranged at intervals. The side pressure of flat-stored bulk grain is borne by frame columns. The existing exterior wall practices have the disadvantages of large material consumption, poor thermal performance, slow construction speed, and large reinforcement of the main structure columns. Summary of the Invention

[0003] The purpose of the present invention is to provide a prefabricated exterior wall panel structure for a high-performance grain depot and an installation method thereof. It realizes full assembly, has a fast construction speed, high integration, is beneficial to environmental protection, and can ensure the construction quality.

[0004] The present invention is achieved through the following technical solutions: A prefabricated exterior wall panel structure for a high-performance grain depot, which includes an L-shaped concrete precast wall 1 and a horizontal precast wall panel 2;

[0005] The L-shaped concrete precast wall 1 includes a vertical plate 1-1 and a bottom plate 1-2 extending inward from the bottom of the vertical plate 1-1 towards the inside of the granary;

[0006] A strengthening rib 1-3 is provided at the intersection of the vertical plate 1-1 and the bottom plate 1-2; a thermal insulation board 1-4 is fixedly installed by reverse casting on the outer side of the vertical plate 1-1; a protrusion 1-6 is provided on the upper side of the inner side of the vertical plate 1-1; vertical grouting grooves 1-8 are provided on the left and right end faces of the vertical plate 1-1; a number of flexible metal connectors 1-7 are provided in the grouting grooves 1-8;

[0007] A two-way adjustable diversion groove 1-9 is provided on the bottom surface of the bottom plate 1-2, and a grouting exhaust hole 1-10 is provided vertically on the bottom plate 1-2;

[0008] Among them, steel reinforcement cages 1-5 are provided in both the vertical plate 1-1 and the bottom plate 1-2, and the steel reinforcement cage located in the bottom plate 1-2 extends out of the bottom plate 1-2 towards the inside and outside;

[0009] The horizontal precast wall panel 2 includes a trough-shaped concrete precast plate 2-1 and a thermal insulation board 2-2; a limiting groove is provided on the outer side of the trough-shaped concrete precast plate 2-1, and the thermal insulation board 2-2 is fixedly installed by reverse casting in the limiting groove; a through protrusion 2-3 is provided on the upper side of the inner side of the trough-shaped concrete precast plate 2-1; a through convex groove 2-4 is provided on the lower side of the inner side of the trough-shaped concrete precast plate 2-1.

[0010] An installation method for an assembled exterior wall panel structure, which comprises the following steps:

[0011] Step 1: First, construct the main structure columns 3 of the granary, and orderly install the main structure columns 3 of the granary on the foundation;

[0012] Step 2: Place the L-shaped concrete precast wall 1 inside the main structure columns 3 of the granary in sequence. Among them, the bottom plate 1-2 of the L-shaped concrete precast wall 1 faces the inside of the granary;

[0013] Step 3: Inject the grouting material into the gap between the bottom plate 1-2 and the foundation through the grouting groove 1-8 of the L-shaped concrete precast wall 1. By adjusting the diversion and exhaust functions of the diversion groove 1-9 and the grouting exhaust hole 1-10, the grouting material can fill the gap between the bottom plate 1-2 and the foundation;

[0014] Step 4: When the grouting material between the bottom plate 1-2 and the foundation is initially set, the grouting material can continue to be injected through the grouting groove 1-8 to fill the gap of the grouting groove 1-8 between adjacent vertical plates 1-1; after the grouting material in the grouting groove 1-8 is set, each L-shaped concrete precast wall 1 is combined into a whole through the combined action of the flexible metal connector 1-7 and the grouting material;

[0015] Step 5: Pour concrete on the inner and outer sides of the bottom plate 1-2 of the L-shaped concrete precast wall 1 to form the granary floor;

[0016] Step 6: Place the horizontal precast wall panel 2 on the top of the combined L-shaped concrete precast wall 1. The protrusion 1-6 of the L-shaped concrete precast wall 1 is in an engaged state with the through-length convex groove 2-4 of the horizontal precast wall panel 2. The L-shaped concrete precast wall 1 and the horizontal precast wall panel 2 are consolidated with a caulking material; both ends of the horizontal precast wall panel 2 are fixed to the main structure columns 3 of the granary;

[0017] Step 7: Stack the horizontal precast wall panels 2 on the lower horizontal precast wall panel 2 in sequence. The protrusion 2-3 of the lower horizontal precast wall panel 2 is in an engaged state with the through-length convex groove 2-4 of the upper horizontal precast wall panel 2, and the adjacent upper and lower horizontal precast wall panels 2 are consolidated with a caulking material;

[0018] Step 8: Continuously stack and fix the horizontal precast wall panels 2 in the manner of Step 7 until the stacked horizontal precast wall panels 2 reach under the granary roof, and then the assembly of the assembled exterior wall is completed.

[0019] A high-performance granary, which comprises the assembled exterior wall panel structure obtained by the above installation method.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The outer wall of the new type of granary is fully prefabricated, with fast construction speed, high integration, beneficial to environmental protection, and can ensure construction quality;

[0022] 2. The L-shaped precast concrete wall utilizes the self-weight of the stored grain inside the granary to prevent the granary wall from overturning under the lateral pressure of the grain, without the need to transfer the lateral pressure of the grain to the main structure column of the granary, which can significantly reduce the construction cost of the main structure column;

[0023] 3. The L-shaped precast concrete wall adopts an integrated precast scheme for the foundation and the wall, which can speed up the installation speed and reduce the connection cost;

[0024] 4. The combination of the adjustable diversion groove and the grouting exhaust hole can conveniently ensure the reliable force transmission between the wall panel and the foundation.

[0025] 5. The combination of the grouting groove and the flexible metal connector can conveniently integrate adjacent L-shaped precast concrete walls into one body, and can ensure the airtightness and watertightness at the joints of the L-shaped precast concrete walls.

[0026] 6. The outer wall of the granary is decomposed into the L-shaped precast concrete wall 1 and the horizontal precast wall panel 2, which can reduce the size and weight of each precast component and has low transportation and hoisting costs;

[0027] 7. Fixing the thermal insulation layer by inverting it on the precast concrete component can significantly improve the thermal performance of the wall while reducing the construction cost and increasing the construction speed. Description of the Drawings

[0028] Figure 1 It is a side view of the L-shaped precast concrete wall;

[0029] Figure 2 It is an axonometric view above the L-shaped precast concrete wall;

[0030] Figure 3 It is an axonometric view below the L-shaped precast concrete wall;

[0031] Figure 4 It is a side view of the horizontal precast wall panel;

[0032] Figure 5 It is an axonometric view of the horizontal precast wall panel;

[0033] Figure 6 It is a state diagram of Step 1 of the installation method;

[0034] Figure 7 It is a state diagram of Step 2 of the installation method;

[0035] Figure 8 It is a state diagram of Step 6 of the installation method;

[0036] Figure 9State diagram for steps 7 and 8 of the installation method.

[0037] Label description: 1 L-shaped precast concrete wall, 1-1 vertical plate, 1-2 bottom plate, 1-3 stiffening rib, 1-4 insulation board, 1-5 steel reinforcement cage, 1-6 protrusion, 1-7 flexible metal connector, 1-8 grouting groove, 1-9 adjustable diversion groove, 1-10 grouting vent hole, 2 horizontal precast wall panel, 2-1 channel-shaped precast concrete slab, 2-2 insulation board, 2-3 continuous protrusion, 2-4 continuous concave groove, 3 main structure column of the granary. Detailed implementation mode

[0038] The present invention will be described in detail below with reference to the accompanying drawings:

[0039] As Figures 1-4 shown: An assembled exterior wall panel structure for a high-performance granary, which comprises an L-shaped precast concrete wall 1 and a horizontal precast wall panel 2;

[0040] The L-shaped precast concrete wall 1 comprises a vertical plate 1-1 and a bottom plate 1-2 extending inward at the bottom of the vertical plate 1-1;

[0041] A stiffening rib 1-3 is arranged at the intersection of the vertical plate 1-1 and the bottom plate 1-2; an insulation board 1-4 is fixedly installed on the outer side of the vertical plate 1-1 by reverse casting; a protrusion 1-6 is arranged on the upper side of the inner side of the vertical plate 1-1; vertical grouting grooves 1-8 are arranged on the left and right end faces of the vertical plate 1-1; a plurality of flexible metal connectors 1-7 are arranged in the grouting grooves 1-8;

[0042] A two-way adjustable diversion groove 1-9 is arranged on the bottom surface of the bottom plate 1-2, and a grouting vent hole 1-10 is arranged vertically on the bottom plate 1-2;

[0043] Wherein, steel reinforcement cages 1-5 are arranged in both the vertical plate 1-1 and the bottom plate 1-2, and the steel reinforcement cage located at the bottom plate extends out of the bottom plate 1-2 towards the inner and outer sides;

[0044] The horizontal precast wall panel 2 comprises a channel-shaped precast concrete slab 2-1 and an insulation board 2-2; a limiting groove is arranged on the outer side of the channel-shaped precast concrete slab 2-1, and the insulation board 2-2 is fixedly installed in the limiting groove by reverse casting; a continuous protrusion 2-3 is arranged on the upper side of the inner side of the channel-shaped precast concrete slab 2-1; a continuous concave groove 2-4 is arranged on the lower side of the inner side of the channel-shaped precast concrete slab 2-1.

[0045] As Figures 5-9 shown: The installation method of the assembled exterior wall panel structure, which comprises the following steps:

[0046] Step 1: First, construct the main structure column 3 of the granary, and orderly install the main structure column 3 of the granary on the foundation;

[0047] Step 2: placing the L-shaped prefabricated concrete wall 1 on the inner side of the main structural column 3 of the granary in sequence, wherein the bottom plate 1-2 of the L-shaped prefabricated concrete wall 1 faces the inner side of the granary;

[0048] Step 3: inject the grouting material into the gap between the bottom plate 1-2 and the foundation through the grouting groove 1-8 of the L-shaped concrete prefabricated wall 1, and adjust the diversion and exhaust function of the guide groove 1-9 and the grouting exhaust hole 1-10 so that the grouting material can fill the gap between the bottom plate 1-2 and the foundation;

[0049] Step 4: After the grouting material between the bottom plate 1-2 and the foundation has initially solidified, the grouting material can continue to be injected through the grouting grooves 1-8 to fill the gaps in the grouting grooves 1-8 between adjacent vertical plates 1-1; after the grouting material in the grouting grooves 1-8 has solidified, the various L-shaped concrete prefabricated walls 1 are combined into a whole through the combined action of the flexible metal connectors 1-7 and the grouting material;

[0050] Step 5: pouring concrete inside and outside the bottom plate 1-2 of the L-shaped concrete prefabricated wall 1 to form the granary floor;

[0051] Step 6: Place the horizontal prefabricated wall panel 2 on the top of the assembled L-shaped concrete prefabricated wall 1, the protrusions 1-6 of the L-shaped concrete prefabricated wall 1 are in meshing state with the through-length protrusions 2-4 of the horizontal prefabricated wall panel 2, and the L-shaped concrete prefabricated wall 1 and the horizontal prefabricated wall panel 2 are fixed with caulking material; both ends of the horizontal prefabricated wall panel 2 are fixed to the main structural columns 3 of the granary;

[0052] Step 7: stack the horizontal prefabricated wall panels 2 on the lower horizontal prefabricated wall panels 2 in sequence, the protrusions 2-3 of the lower horizontal prefabricated wall panels 2 are meshed with the through-length protrusions 2-4 of the upper horizontal prefabricated wall panels 2, and the upper and lower adjacent horizontal prefabricated wall panels 2 are fixed with caulking materials;

[0053] Step 8: Install the horizontal prefabricated wall panels 2 in the manner of step 7 and continuously stack and fix them until the stacked horizontal prefabricated wall panels 2 reach under the granary roof, thus completing the assembly of the prefabricated exterior wall.

[0054] If the L-shaped concrete prefabricated wall 1 is tilted, an adjustment step is included between step 2 and step 3: according to the tilt of the L-shaped concrete prefabricated wall 1, a wooden wedge or a steel wedge is knocked into the adjustment guide groove 1-9 set at the bottom of the wall panel to adjust the elevation and tilt of the wall panel to meet the design requirements.

[0055] A high-performance grain warehouse, with an assembled exterior wall obtained according to the above-mentioned installation method.

[0056] Here’s how it works:

[0057] Generally speaking, the lateral pressure of the piled-up grain on the lower layer is relatively large, while that on the upper layer is relatively small. The L-shaped precast concrete wall utilizes the self-weight of the stored grain inside the granary to prevent the granary wall from overturning under the lateral pressure of the grain. Basically, there is no need to transfer the lateral pressure of the grain to the main structure columns of the granary, which can significantly reduce the construction cost of the main structure columns. The structures such as the stiffening rib 1-3 and steel reinforcement cage 1-5 of the L-shaped precast concrete wall can enhance the strength of the L-shaped precast concrete wall to ensure that it can bear the lateral pressure of the grain.

[0058] The grouting groove 1-8 and flexible metal connector 1-7 of the L-shaped precast concrete wall are combined with the grouting process, which can improve the connection strength between adjacent L-shaped precast concrete walls and ensure the airtightness and watertightness at the joints of the L-shaped precast concrete walls.

[0059] The connection between the bottom plate and the foundation and the pouring of concrete on the inner and outer sides of the bottom plate 1-2 to form the granary floor can improve the connection strength between the L-shaped precast concrete wall and the foundation, and further ensure that the L-shaped precast concrete wall can bear the lateral pressure of the grain.

[0060] Although the horizontal precast wall panel 2 bears a certain amount of lateral pressure from the grain, since it is located at a high position of the grain and the lateral pressure of the grain it bears is limited, there is no need to consider the horizontal load of the horizontal precast wall panel 2 too much. The installation of the prefabricated exterior wall is completed by stacking multiple layers of the horizontal precast wall panel 2.

[0061] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Installation method of prefabricated exterior wall panel structure for high-performance grain depot, Characterized in that: The prefabricated exterior wall panel structure includes an L-shaped concrete precast wall (1) and a horizontal precast wall panel (2); The L-shaped concrete precast wall (1) includes a vertical plate (1-1) and a bottom plate (1-2) extending inward to the inside of the granary at the bottom of the vertical plate (1-1); A reinforced haunch (1-3) is provided at the intersection of the vertical plate (1-1) and the bottom plate (1-2); a heat preservation board (1-4) is fixedly back-cast on the outer side surface of the vertical plate (1-1); a protrusion (1-6) is provided on the upper side inside the vertical plate (1-1); vertical grouting grooves (1-8) are provided on the left and right end surfaces of the vertical plate (1-1); a number of flexible metal connectors (1-7) are provided in the grouting grooves (1-8); A two-way adjustable diversion groove (1-9) is provided on the bottom surface of the bottom plate (1-2), and a grouting exhaust hole (1-10) is provided vertically on the bottom plate (1-2); Among them, steel reinforcement cages (1-5) are arranged in both the vertical plate (1-1) and the bottom plate (1-2), and the steel reinforcement cage located at the bottom plate extends out of the bottom plate (1-2) to the inside and outside; The horizontal precast wall panel (2) includes a trough-shaped concrete precast plate (2-1) and a heat preservation board (2-2); a limiting groove is provided on the outer side surface of the trough-shaped concrete precast plate (2-1), and the heat preservation board (2-2) is fixedly back-cast in the limiting groove; a continuous protrusion (2-3) is provided on the upper side inside the trough-shaped concrete precast plate (2-1); a continuous convex groove (2-4) is provided on the lower side inside the trough-shaped concrete precast plate (2-1); The installation method of this prefabricated exterior wall panel structure includes the following steps: Step 1: First, construct the main structure columns (3) of the granary, and orderly install the main structure columns (3) of the granary on the foundation; Step 2: Place the L-shaped concrete precast walls (1) in sequence on the inner side of the main structure columns (3) of the granary. Among them, the bottom plate (1-2) of the L-shaped concrete precast wall (1) faces the inside of the granary; Step 3: Inject grouting material through the grouting groove (1-8) of the L-shaped concrete precast wall (1) into the gap between the bottom plate (1-2) and the foundation. Through the diversion and exhaust functions of the adjustable diversion groove (1-9) and the grouting exhaust hole (1-10), the grouting material can fill the gap between the bottom plate (1-2) and the foundation; Step 4: When the grouting material between the bottom plate (1-2) and the foundation is initially set, the grouting material can continue to be injected through the grouting groove (1-8) to fill the gap in the grouting groove (1-8) between adjacent vertical plates (1-1); after the grouting material in the grouting groove (1-8) is set, each L-shaped concrete precast wall (1) is combined into a whole through the combined action of the flexible metal connector (1-7) and the grouting material; Step 5: Pour concrete on the inside and outside of the bottom plate (1-2) of the L-shaped concrete precast wall (1) to form the granary floor; Step 6: Place the horizontal precast wall panel (2) on top of the combined L-shaped precast concrete wall (1). The protrusion (1-6) of the L-shaped precast concrete wall (1) is in an engaged state with the through-length convex groove (2-4) of the horizontal precast wall panel (2). The L-shaped precast concrete wall (1) and the horizontal precast wall panel (2) are consolidated with a caulking material; both ends of the horizontal precast wall panel (2) are fixed to the main structure columns (3) of the granary. Step 7: Stack the horizontal precast wall panels (2) on the lower-layer horizontal precast wall panels (2) in sequence. The protrusion (2-3) of the lower-layer horizontal precast wall panel (2) is in an engaged state with the through-length convex groove (2-4) of the upper-layer horizontal precast wall panel (2). And the adjacent upper and lower horizontal precast wall panels (2) are consolidated with a caulking material. Step 8: Continuously stack and fix the horizontal precast wall panels (2) in the manner of Step 7 until the stacked horizontal precast wall panels (2) reach under the granary roof, thus completing the assembly of the prefabricated exterior wall.

2. The installation method of the prefabricated exterior wall panel structure according to Claim 1, characterized in that: If the L-shaped precast concrete wall (1) is inclined, an adjustment step is further included between Step 2 and Step 3: According to the inclination of the L-shaped precast concrete wall (1), drive wooden wedges or steel wedges into the adjustment diversion groove (1-9) provided at the bottom of the wall panel to adjust the elevation and inclination of the wall panel to meet the design requirements.

3. A high-performance grain depot, characterized in that: It includes a prefabricated exterior wall obtained by the installation method according to Claim 1 or 2.

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