Fabricated building wall and construction method

Abstract

The invention provides a fabricated building wall and a construction method.The wall comprises a frame keel, a noise reduction keel, a wall core material and an outer wallboard, an annular cavity with openings in the two sides is formed in the frame keel, and the noise reduction keel and the wall core material are located in the annular cavity; openings in the two sides of the annular cavity are blocked by the external wall panel; the cross section of the noise reduction keel comprises at least two Z-shaped structures connected end to end, and the Z-shaped structures are used for dividing the annular cavity into a plurality of noise reduction reflection cavities. The noise reduction keel is optimally designed, and the wall body core material and the vibration reduction strips with the sound absorption effect are additionally arranged, so that the sound insulation performance of the wall body is effectively improved, the sound insulation effect of the wall body is improved without thickening the wall body or increasing the number of external wall panels, and the problems of cost increase, quality reduction and the like caused by the sound insulation effect are avoided; by optimally designing the shapes and structures of the joints of the heaven and earth keels, the side wrapping keels, the vibration reduction keels and the wall body core materials, the installation efficiency, stability and tightness of the wall body are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated building construction, and in particular to a prefabricated building wall and a construction method. Background Art

[0002] With the rapid development of modern society, noise pollution is becoming increasingly serious, and people's requirements for quiet living and working environments are constantly increasing, especially in hotels, hospitals, schools, conference halls and other places, where the requirements for sound insulation are more stringent. However, traditional light steel keel walls have obvious deficiencies in sound insulation performance. The light steel keel itself has strong sound conductivity, which makes it difficult for the overall wall to meet high sound insulation requirements.

[0003] In order to improve the sound insulation effect, the existing technology usually adopts the method of thickening the wall or increasing the number of wall panels. However, these methods have many disadvantages: first, they will occupy valuable indoor space and reduce the usable area; second, these methods will significantly increase the material cost, installation cost and transportation cost of the wall, resulting in an increase in the overall construction cost; finally, excessively increasing the wall thickness or the number of wall panels may reduce the stability of the wall itself and affect the safety of the building structure. Summary of the invention

[0004] The object of the present invention is to provide a prefabricated building wall and a construction method to solve the problems in the above background.

[0005] The technical solution adopted by the present invention is: an assembled building wall, which includes: a frame keel, a noise reduction keel, a wall core material and an exterior wall panel, the frame keel is provided with an annular cavity with openings on both sides, the noise reduction keel and the wall core material are located in the annular cavity, and the exterior wall panel blocks the openings on both sides of the annular cavity; the cross-section of the noise reduction keel includes at least two Z-shaped structures connected end to end, which are used to divide the annular cavity into a plurality of noise reduction reflection cavities.

[0006] Furthermore, the noise reduction keel includes a plurality of Z-shaped keels and connecting keels, and the Z-shaped keel includes at least: a first side bone and a second side bone whose large surfaces are parallel to the exterior wall panel, and an inclined side bone located between the first side bone and the second side bone to connect the two, and the width of the first side bone is greater than the width of the second side bone; the two side ends of the connecting keel are respectively connected to different second side bones, forming an angle greater than 0° and less than 180° with the second side bone.

[0007] Furthermore, the Z-shaped keel includes a third side bone, one side end of the third side bone is connected to the oblique side bone, and the other side end is connected to the first side bone or the second side bone, forming an angle greater than 0° and less than 180° with the first side bone or the second side bone.

[0008] Furthermore, the Z-shaped keel includes a fourth side bone, one side end of the fourth side bone is connected to the first side bone, forming an angle greater than 0° and less than 180° with the first side bone; the other side end extends toward the second side bone, and there is a gap between the fourth side bone and the wall core material, the oblique side bone, the second side bone and the third side bone.

[0009] Furthermore, the third side bone and / or the fourth side bone are perpendicular to the first side bone.

[0010] Furthermore, the connecting keel is perpendicular to the second side bone.

[0011] Furthermore, the wall core material includes a wall core gypsum board and a rock wool sound-absorbing board, at least one side end of the wall core gypsum board is connected to the connecting keel; the rock wool sound-absorbing board is arranged on both sides of the wall core gypsum board in the thickness direction, and there is a gap between the rock wool sound-absorbing board and the exterior wall panel and the noise reduction keel.

[0012] Furthermore, the frame keel includes a top and bottom keel and a side keel, the top and bottom keels and the side keels are alternately connected to form a ring-shaped frame keel, and the exterior wall panels connect the outer walls of the top and bottom keels and the side keels.

[0013] Furthermore, the cross-section of the side-wrapped keel is an E-shaped structure, the side end of the wall core material is inserted into the open end of the E-shaped structure, and vibration damping strips are respectively arranged on the side of the side-wrapped keel and the top and bottom keel away from the wall core material.

[0014] The technical solution of the present invention also includes: the construction method of the above-mentioned assembled building wall, which includes the steps of:

[0015] Install a set of top and bottom keels on the floor through expansion bolts, and install side keels at both ends of the length direction;

[0016] Install noise reduction keels between the side keels;

[0017] Fix the wall core material to the side keel and noise reduction keel;

[0018] Install another set of sky and ground keels on the top of the side keels and noise reduction keels;

[0019] Install and fix the exterior wall panels.

[0020] The invention has the beneficial effects of: by optimizing the structure of the noise reduction keel, adding a wall core material with a sound-absorbing effect and a vibration-reducing strip capable of sound absorption and vibration reduction, the sound insulation performance of the wall is effectively improved, and there is no need to thicken the wall or increase the number of exterior wall panels to improve the sound insulation effect of the wall, thereby avoiding the problems of increased costs and reduced quality. In addition, by optimizing the shape and structure of the connection between the top and bottom keels, the side keels, the vibration-reducing keels and the wall core material, the installation efficiency, stability and tightness of the wall are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a top cross-sectional view of an embodiment of the present invention;

[0022] Figure 2 The embodiment of the present invention is attached Figure 1 A magnified view of the structure at center A;

[0023] Figure 3 is a partial stereoscopic view of an embodiment of the present invention;

[0024] Figure 4 The embodiment of the present invention is attached Figure 3 A magnified view of the structure at B in the middle;

[0025] Figure 5 The embodiment of the present invention is attached Figure 3 A magnified view of the structure at C in the middle;

[0026] Figure 6 is a top view of a noise reduction keel according to an embodiment of the present invention;

[0027] Figure 7 is a side view of the sky and earth keel in an embodiment of the present invention;

[0028] Figure 8 It is a top view of the side keel in the embodiment of the present invention.

[0029] In the figure:

[0030] 100, frame keel; 110, floor keel; 120, side keel; 130, installation groove;

[0031] 200, noise reduction keel; 210, Z-shaped keel; 211, first side bone; 212, second side bone; 213, oblique side bone; 214, third side bone; 215, fourth side bone; 220, connecting keel;

[0032] 300, wall core material; 310, wall core gypsum board; 320, rock wool sound-absorbing board;

[0033] 400, exterior wall panels;

[0034] 500. Vibration damping strips. DETAILED DESCRIPTION

[0035] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] Reference Figure 1-8 This embodiment provides an assembled building wall, which includes a frame keel 100, a noise reduction keel 200, a wall core material 300 and an exterior wall panel 400. An annular cavity with openings on both sides is configured in the frame keel 100, the noise reduction keel 200 and the wall core material 300 are located in the annular cavity, and the exterior wall panel 400 blocks the openings on both sides of the annular cavity. The cross section of the noise reduction keel 200 includes at least two Z-shaped structures connected end to end, which are used to divide the annular cavity into a plurality of noise reduction reflection cavities.

[0038] The frame keel 100 is the basic structure of the entire prefabricated building wall. The annular cavity inside it provides installation space for the noise reduction keel 200 and the wall core material 300. The exterior wall panel 400 blocks the openings on both sides of the annular cavity to ensure the integrity and stability of the wall. The cross-section of the noise reduction keel 200 is designed as a plurality of Z-shaped structures connected end to end. This design not only increases the structural strength of the wall, but also divides the annular cavity into a plurality of noise reduction reflection cavities, so that the noise sound waves transmitted from the exterior wall panel 400 are reflected multiple times by the noise reduction keel 200 in the noise reduction reflection cavity, resulting in loss of sound energy; then, the noise sound waves are transmitted to the wall core material 300, and its sound energy is further weakened by absorption or blocking of the wall core material 300, effectively improving the sound insulation performance of the entire prefabricated building wall.

[0039] In order to meet the installation requirements of the noise reduction keel 200 and the wall core material 300, the frame keel 100 in this embodiment is configured to include two groups of top and bottom keels 110 and two groups of side keels 120. The longitudinal section of the top and bottom keels 110 is a U-shaped structure. The two groups of top and bottom keels 110 are arranged in parallel and their openings are opposite to each other. The cross-section of the side keel 120 is an E-shaped structure. The two groups of side keels 120 are arranged in parallel and their openings are opposite to each other. The two groups of side keels 120 are respectively located at the lateral ends of the top and bottom keels 110, and the annular frame keels 100 are alternately connected with the two groups of top and bottom keels 110, so that the inner side of the frame keel 100 is a groove structure, which is convenient for installing, fixing and enclosing the noise reduction keel 200 and the wall core material 300; the outer wall panel 400 is connected to the outer side walls of the top and bottom keels 110 and the side keels 120 to seal the annular cavity and ensure the integrity and stability of the wall.

[0040] Reference Figure 3 , 4 and 6. The noise reduction keel 200 includes a plurality of Z-shaped keels 210 and a connecting keel 220. The Z-shaped keel 210 includes at least: a first side bone 211 and a second side bone 212 whose large surfaces are parallel to the exterior wall panel 400, and an oblique side bone 213 located between the first side bone 211 and the second side bone 212 to connect the two. The width of the first side bone 211 is greater than the width of the second side bone 212. The two side ends of the connecting keel 220 are respectively connected to different second side bones 212, forming an angle greater than 0° and less than 180° with the second side bones 212.

[0041] The noise reduction keel 200 realizes the effective separation of the annular cavity through the combination of the above-mentioned Z-shaped keel 210 and the connecting keel 220, thereby forming a plurality of noise reduction reflection cavities. The large surfaces of the first side bone 211 and the second side bone 212 in the Z-shaped keel 210 are parallel to the exterior wall panel 400, and the width of the first side bone 211 is greater than the width of the second side bone 212. This design can make the wall have better bending resistance when subjected to external force, which helps to improve the overall stability of the wall; the oblique side bone 213 connects the first side bone 211 and the second side bone 212 and forms a certain angle, so that the noise sound wave can be reflected and reduced multiple times during the transmission process, achieving a good noise reduction effect. The two side ends of the connecting keel 220 are respectively connected to different second side bones 212 and form a certain angle, which not only increases the structural strength of the noise reduction keel 200, but also can effectively separate the sound wave path, optimize the structure of the noise reduction reflection cavity, and further improve the noise reduction effect.

[0042] In addition to the above, the morphological structure of the Z-shaped keel can be further optimized so that a more complex noise reduction reflection cavity structure can be separated in the frame keel 100 to further enhance the noise reduction effect. For example, a third side bone 214 may be arranged in the Z-shaped keel 210, one side end of the third side bone 214 being connected to the oblique side bone 213, and the other side end being connected to the first side bone 211 or the second side bone 212, forming an angle greater than 0° and less than 180° with the first side bone 211 or the second side bone 212; a fourth side bone 215 may also be arranged in the Z-shaped keel 210, one side end of the fourth side bone 215 being connected to the first side bone 211, forming an angle greater than 0° and less than 180° with the first side bone 211, and the other side end extending toward the second side bone 212, with gaps between the wall core material 300, the oblique side bone 213, the second side bone 212 and the third side bone 214, thereby increasing the sound wave reflection surface while avoiding direct connection between solid structures, and avoiding the sound wave from weakening the noise reduction effect of the noise reduction reflection cavity along the path of solid conduction.

[0043] Furthermore, the third side bone 214 and the fourth side bone 215 can be constructed to be perpendicular to the first side bone 211, so as to optimize the path of the sound wave noise reduction reflection, improve the structural strength of the noise reduction keel 200, and enhance the anti-extrusion performance of the entire prefabricated building wall.

[0044] Reference Figure 1 The wall core material 300 includes a wall core gypsum board 310 and a rock wool sound-absorbing board 320. One side end of the wall core gypsum board 310 is connected to the connecting keel 220, and the other side is connected to the side package keel 120 or the connecting keel 220 (determined by the number of noise reduction keels 200 in the equipped building wall, and the number of noise reduction keels 200 can be designed by technicians in this field according to construction requirements, and is not specifically limited here); the rock wool sound-absorbing board 320 is arranged on both sides of the wall core gypsum board 310 in the thickness direction, and there is a gap between the rock wool sound-absorbing board 320 and the exterior wall panel 400 and the noise reduction keel 200. The rock wool sound-absorbing board 320 can increase the damping of sound waves during propagation, convert sound energy into heat energy, effectively reduce the energy of sound waves, and improve the sound insulation effect of the wall. There is a gap between the rock wool sound-absorbing board 320 and the exterior wall panel 400 and the noise reduction keel 200, so that the noise sound waves cannot be directly transmitted from the exterior wall panel 400 to the rock wool sound-absorbing board 320 through solid conduction along the thickness direction of the prefabricated building wall, but must be reflected and reduced multiple times by the noise reduction keel 200 before being transmitted to the rock wool sound-absorbing board 320 through air-solid conduction, so as to improve the sound absorption and noise reduction effect of the wall.

[0045] Similarly, the exterior wall panel 400 may also adopt a gypsum board structure, and its thickness and number of layers may be configured according to actual construction requirements, and no further specific limitation is given here.

[0046] In order to facilitate docking with the wall core material 300, the noise reduction keel 200 can be optimized as follows: the connecting keel 220 is perpendicular to the second keel, so that the side end of the wall core gypsum board 310 is closely attached to the large surface of the connecting keel 220. In order to improve the structural tightness and stability of the prefabricated building wall, the side end of the wall core material 300 (including the wall core gypsum board 310 and the rock wool sound-absorbing board 320) is inserted into the open end of the E-shaped structure, so that a stable connection is formed between the wall core material 300 and the side package keel 120, avoiding displacement of the wall core material 300 and improving the compactness of the structure.

[0047] In addition, an installation groove 130 can be constructed on the outer wall of the side package keel 120, the top of the top floor keel 110, and the bottom of the bottom floor keel 110, and a vibration damping strip 500 can be constructed in the installation groove 130. The vibration damping strip 500 absorbs sound waves, vibration energy, etc., further reducing the noise sound waves transmitted from the outside, and improving the sound insulation and vibration reduction performance of the prefabricated building wall. The material of the vibration damping strip 500 can be selected by technicians in this field according to needs, such as rubber, foam, etc., to achieve the best sound insulation effect. The connection method of the floor keel 110 and the side package keel 120 can be bolted, snap-fit, welded, etc., to improve the convenience and stability of installation.

[0048] In addition to the above, structures such as threading holes may be constructed on the noise reduction keel 110 to facilitate the installation of wire harnesses in the wall.

[0049] The construction method of the prefabricated building wall comprises the following steps:

[0050] Adhere the vibration-damping strip 500 to the installation grooves of the top and bottom keels 110 and the side keels 120, install one set of the top and bottom keels 110 on the floor through expansion bolts, install the side keels 120 at both ends of the installed top and bottom keels 110 in the length direction, install the noise reduction keels 200 between the side keels 120 and on the installed top and bottom keels 110; fix the wall core material 300 to the side keels 120 and the noise reduction keels 200, install another set of top and bottom keels 110 on the top of the side keels 120 and the noise reduction keels 200; finally, install and fix the exterior wall panel 400.

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows: by optimizing the structure of the noise reduction keel 200, and adding a wall core material 300 with a sound-absorbing effect and a vibration-reducing strip 500 capable of sound absorption and vibration reduction, the sound insulation performance of the wall is effectively improved, and there is no need to improve the sound insulation effect of the wall by thickening the wall or increasing the number of exterior wall panels 400, thereby avoiding the problems of increased costs and reduced quality. In addition, by optimizing the shape and structure of the connection between the top and bottom keels 110, the side keels 120, the vibration-reducing keels and the wall core material 300, the installation efficiency, stability and tightness of the wall are improved.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0053] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An assembled building wall, characterized in that: include: A frame keel, a noise reduction keel, a wall core material and an exterior wall panel, wherein the frame keel is provided with an annular cavity with openings on both sides, the noise reduction keel and the wall core material are located in the annular cavity, and the exterior wall panel blocks the openings on both sides of the annular cavity; the cross section of the noise reduction keel includes at least two Z-shaped structures connected end to end, which are used to divide the annular cavity into a plurality of noise reduction reflection cavities.

2. The assembled building wall according to claim 1, characterized in that: The noise reduction keel includes a plurality of Z-shaped keels and connecting keels, and the Z-shaped keel includes at least: a first side bone and a second side bone whose large surfaces are parallel to the exterior wall panel, and an inclined side bone located between the first side bone and the second side bone to connect the two, and the width of the first side bone is greater than the width of the second side bone; the two side ends of the connecting keel are respectively connected to different second side bones, forming an angle greater than 0° and less than 180° with the second side bone.

3. The assembled building wall according to claim 2, characterized in that: The Z-shaped keel includes a third side bone, one side end of the third side bone is connected to the oblique side bone, and the other side end is connected to the first side bone or the second side bone, forming an angle greater than 0° and less than 180° with the first side bone or the second side bone.

4. The assembled building wall according to claim 3, characterized in that: The Z-shaped keel includes a fourth side bone, one side end of the fourth side bone is connected to the first side bone, forming an angle greater than 0° and less than 180° with the first side bone; the other side end extends toward the second side bone, and there is a gap between the fourth side bone and the wall core material, the oblique side bone, the second side bone and the third side bone.

5. The assembled building wall according to claim 4, characterized in that: The third side bone and / or the fourth side bone are perpendicular to the first side bone.

6. The assembled building wall according to any one of claims 2 to 5, characterized in that: The connecting keel is perpendicular to the second side bone.

7. The assembled building wall according to claim 6, characterized in that: The wall core material includes a wall core gypsum board and a rock wool sound-absorbing board. At least one side end of the wall core gypsum board is connected to the connecting keel. The rock wool sound-absorbing board is arranged on both sides of the wall core gypsum board in the thickness direction. There is a gap between the rock wool sound-absorbing board and the exterior wall panel and the noise reduction keel.

8. The assembled building wall according to any one of claims 1 to 5 and 7, characterized in that: The frame keel includes a top and bottom keel and a side keel, the top and bottom keels and the side keels are alternately connected to form a ring-shaped frame keel, and the exterior wall panels are connected to the outer walls of the top and bottom keels and the side keels.

9. The assembled building wall according to claim 8, characterized in that: The cross section of the side wrap keel is an E-shaped structure, the side end of the wall core material is inserted into the open end of the E-shaped structure, and vibration damping strips are respectively arranged on the side of the side wrap keel and the top and bottom keel away from the wall core material.

10. The construction method of the assembled building wall according to claim 8 or 9, characterized in that: Includes steps: Install a set of top and bottom keels on the floor through expansion bolts, and install side keels at both ends of the length direction; Install noise reduction keels between the side keels; Fix the wall core material to the side keel and noise reduction keel; Install another set of sky and ground keels on the top of the side keels and noise reduction keels; Install and fix the exterior wall panels.

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