Joint structure for fixing external wall panel to beam in embedded mode

Abstract

The utility model discloses a node structure for fixing an external wall panel to a beam in an embedded mode, relates to the field of buildings, and solves the problem that the external wall panel falls outwards due to the fact that the upper portion of the external wall panel overturns outwards during construction. According to the technical scheme, the node structure with the external wall panel fixed to the beam in the embedded mode comprises the beam, the external wall panel fixed to the top of the beam and the external wall panel fixed to the bottom of the beam, the beam is of a reinforced concrete structure, the bottom face of the beam is an inclined face inclining downwards in the direction from the indoor space to the outdoor space, and a first embedded part is arranged on the bottom face of the beam. The top face of the outer wall plate is a slope inclining downwards in the direction from the inner plate face to the outer plate face, the maximum turning radius of the outer wall plate is larger than the minimum clear distance between the bottom faces and the top faces of the upper beam and the lower beam, and a first connecting plate is fixed to the position, close to the top faces, of the inner plate face of the outer wall plate. The first connecting plate and the first embedded part are fixedly connected through a first connecting piece. The utility model is used for installing and fixing the external wall panel between the upper beam and the lower beam.

Description

Technical Field

[0001] The utility model relates to the field of buildings, in particular to concrete components and walls of buildings, and specifically to a node structure in which an exterior wall panel is embedded and fixed to a beam. Background Art

[0002] In prefabricated buildings, autoclaved lightweight aerated concrete panels are generally in the form of strips and can be used as exterior wall panels. They can also be fixed to the beams of reinforced concrete structures in an embedded manner. In the "Structural Construction-Concrete Structure" section of "Prefabricated Building Autoclaved Aerated Concrete Panel Enclosure System" (Atlas No. 19CJ85-1), the "Reinforced Concrete Structure AAC Panel Exterior Wall Plate Bolt Node" diagram intuitively shows an embedded connection structure between the exterior wall panel and the beam. This embedded connection structure is as follows Figure 1 As shown, the top and bottom surfaces of the beam 1 are both horizontal and are respectively provided with embedded parts 2, two embedded parts 2 are fixed in the concrete of the beam 1, the inner plate surfaces of the top and bottom of the exterior wall panel 3 are respectively fixed with connecting plates 5 through flat bolts 4, the flat bolts 4 penetrate the inner and outer plate surfaces of the exterior wall panel 3, the connecting plates 5 and the corresponding embedded parts 2 are respectively welded and connected with angle steels 6, and the side surface of the corresponding outdoor of the beam 1 is also fixed with an insulation board 8 through expansion bolts 7, the upper and lower sides of the insulation board 8 are respectively abutted against the exterior wall panel 3, and the outer surface of the insulation board 8 is flush with the outer plate surface of the exterior wall panel 3, thereby forming a flat exterior wall surface. When installing the exterior wall panel 3, first place the bottom surface of the exterior wall panel 3 on the top surface of the beam 1, then flip the upper part of the exterior wall panel 3 outward until the inner and outer plate surfaces of the exterior wall panel 3 are vertical, and then fix the upper end of the exterior wall panel 3. Since the top surface of the exterior wall panel 3 and the top surface of the beam 1 are both planes, and there is a gap between the top surface of the exterior wall panel 3 and the top surface of the beam 1, when the upper part of the exterior wall panel 3 is turned outward, it is easy to overturn and cause the exterior wall panel 3 to fall outward, causing a safety accident. In addition, the top surface of the exterior wall panel 3 and the top surface of the beam 1 are both planes, and the joint between the two is easy to seep water, causing rainwater to seep into the room. Utility Model Content

[0003] The utility model provides a node structure of an exterior wall panel embedded in a beam, which solves the problem that when the upper part of the exterior wall panel is turned outward during construction, the exterior wall panel is easily overturned and falls outward.

[0004] The technical solution adopted by the utility model is: a node structure in which an exterior wall panel is embedded and fixed to a beam, comprising a beam, an exterior wall panel fixed to the top of the beam and an exterior wall panel fixed to the bottom of the beam, the beam being a reinforced concrete structure, the bottom surface of the beam being a slope inclined downward from indoors to outdoors, the bottom surface of the beam being provided with a first embedded part fixed inside the beam, the top surface of the exterior wall panel being a slope inclined downward from an inner panel surface to an outer panel surface, the maximum turning radius of the exterior wall panel being greater than the minimum clear distance between the bottom and top surfaces of the upper and lower beams, a first connecting plate being fixed to the inner panel surface of the exterior wall panel and close to the top surface, the first connecting plate and the first embedded part being fixedly connected by a first connecting part.

[0005] The first connecting member serves to connect the first embedded member and the first connecting plate, thereby fixing the top of the exterior wall panel to the bottom of the beam. Specifically: the first connecting member is a first angle steel, the edge where the top surface of the exterior wall panel and the inner panel surface intersect is located in the inner angle of the first angle steel, the first angle steel is welded to the first embedded member, the first angle steel is welded to the first connecting plate, and the first angle steel is arranged along the length direction of the exterior wall panel.

[0006] The beam is a reinforced concrete structure. In order to avoid the thermal bridge effect of the beam and form a flat exterior wall surface, an insulation board is fixedly installed on the side of the beam corresponding to the outdoor. The upper and lower sides of the insulation board form seams with the exterior wall board respectively, and the outer surface of the insulation board is flush with the outer panel surface of the exterior wall board.

[0007] In order to ensure the waterproof effect at the joint, further: a sealing structure is provided in the gap between the top surface of the beam and the bottom surface of the exterior wall panel, and a sealing structure is provided in the gap between the bottom surface of the beam and the top surface of the exterior wall panel, and the sealing structure simultaneously closes the joint between the insulation board and the exterior wall panel.

[0008] The sealing structure mainly plays the role of filling gaps, leveling and waterproofing. Specifically: the sealing structure includes a sealing material, a PE rod located on the side of the sealing material corresponding to the outside, and a sealant on the side of the PE rod corresponding to the outside. The sealing material is mortar or fine stone concrete, and the PE rod is arranged along the length of the exterior wall panel.

[0009] The following provides a connection structure between the bottom of the exterior wall panel and the beam. Specifically: the top surface of the beam and the bottom surface of the exterior wall panel are both horizontal planes, the top surface of the beam is provided with a second embedded part fixed inside the beam, the inner surface of the exterior wall panel and a position close to the bottom surface is fixed with a second connecting plate, and the second connecting plate and the second embedded part are fixedly connected by a second connecting member.

[0010] The second connecting member serves to connect the second embedded member and the second connecting plate, thereby fixing the bottom of the exterior wall panel to the top of the beam. Specifically: the second connecting member is a second angle steel, the outer angle of the second angle steel is located in the inner angle formed by the inner plate surface of the exterior wall panel and the top surface of the beam, the second angle steel is welded to the second embedded member, the second angle steel is welded to the second connecting plate, and the second angle steel is arranged along the length direction of the exterior wall panel.

[0011] The exterior wall panel is generally a lightweight prefabricated panel with low strength. In order to firmly fix the first connecting plate and the second connecting plate to the outer panel surface of the exterior wall panel, further: the exterior wall panel is a lightweight prefabricated panel, a first flat plate bolt is passed between the inner and outer panel surfaces of the upper portion of the exterior wall panel, and the first connecting plate is fixed to the inner panel surface of the exterior wall panel by the first flat plate bolt, and a second flat plate bolt is passed between the inner and outer panel surfaces of the lower portion of the exterior wall panel, and the second connecting plate is fixed to the inner panel surface of the exterior wall panel by the second flat plate bolt. For example, the first flat plate bolt and the second flat plate bolt are both M14, and the first flat plate bolt and the second flat plate bolt are respectively located in the middle of the length direction of the exterior wall panel.

[0012] In order for the first flat bolt and the second flat bolt to effectively fix the first connecting plate and the second connecting plate, further: the distance between the first flat bolt and the top surface of the outer wall panel is at least 80 mm, and the distance between the second flat bolt and the bottom surface of the outer wall panel is at least 80 mm.

[0013] The first embedded part and the second embedded part are fixed in the beam. In order to ensure the stability of the first embedded part and the second embedded part, specifically: the first embedded part includes a steel plate and at least one steel bar hook fixed to the back of the steel plate, the front side of the steel plate is flush with the surface of the beam, and the steel bar hook is fixed in the concrete of the beam; the second embedded part is the same as the first embedded part.

[0014] The utility model has the following beneficial effects: since the bottom surface of the beam and the top surface of the exterior wall panel are both inclined surfaces, and the maximum turning radius of the exterior wall panel is greater than the minimum clear distance between the bottom surface and the top surface of the upper and lower beams, during the installation of the exterior wall panel, when the upper part of the exterior wall panel rotates around the bottom, the top surface of the exterior wall panel will be restricted by the bottom surface of the beam, so that the upper part of the exterior wall panel will not be excessively turned outward to cause the exterior wall panel to fall. The bottom surface of the beam and the top surface of the exterior wall panel are both inclined surfaces, so the joints between the two are also inclined accordingly, so rainwater is not easy to penetrate into the room from the bottom surface of the beam and the top surface of the exterior wall panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an existing embedded connection between an exterior wall panel and a beam.

[0016] Figure 2 It is a schematic diagram of an embodiment of a node structure in which an exterior wall panel of the utility model is embedded and fixed to a beam.

[0017] Figure numerals: beam 1, embedded part 2, first embedded part 21, second embedded part 22, exterior wall panel 3, flat plate bolt 4, first flat plate bolt 41, second flat plate bolt 42, connecting plate 5, first connecting plate 51, second connecting plate 52, angle steel 6, first connecting part 61, second connecting part 62, expansion bolt 7, insulation board 8, sealing material 91, PE rod 92, sealant 93. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 2 As shown, the node structure of the exterior wall panel embedded in the beam of the utility model includes a beam 1, an exterior wall panel 3 fixed to the top of the beam 1, and an exterior wall panel 3 fixed to the bottom of the beam 1. The beam 1 and the exterior wall panel 3 are arranged at intervals in the vertical direction, so the utility model is actually a connection structure of the top and bottom of the exterior wall panel 3 with the beam respectively.

[0020] The exterior wall panel 3 is a lightweight prefabricated panel, for example, the exterior wall panel 3 is an autoclaved aerated concrete panel. The exterior wall panel 3 is generally in the shape of a strip, and the two surfaces of the exterior wall panel 3 with the largest area and parallel to each other are the inner panel surface and the outer panel surface, respectively. The inner panel surface corresponds to the interior, and the outer panel surface corresponds to the exterior. The three-dimensional dimensions of the exterior wall panel 3 are height, thickness and length, respectively. The height direction of the exterior wall panel 3 is vertical, the thickness of the exterior wall panel 3 is the distance between the inner and outer panel surfaces, and the length direction of the exterior wall panel 3 is perpendicular to both the thickness direction of the exterior wall panel 3 and the height direction of the exterior wall panel 3.

[0021] The beam 1 is a reinforced concrete structure. The bottom surface of the beam 1 is a downwardly inclined surface from the indoor to the outdoor direction. The top surface of the exterior wall panel 3 is a downwardly inclined surface from the inner panel surface to the outer panel surface. The maximum turning radius of the exterior wall panel 3 is greater than the minimum clear distance between the bottom surface and the top surface of the upper and lower beams 1. When installing the exterior wall panel 3, the lower end of the exterior wall panel 3 is first placed on the top surface of the beam 1, and then the upper part of the exterior wall panel 3 is turned outward to a predetermined position and fixed. Generally, it is fixed after turning it until the inner and outer panels of the exterior wall panel 3 are vertical. The maximum turning radius of the exterior wall panel 3 refers to the maximum radius of the top of the exterior wall panel 3 rotating around the bottom during the installation of the exterior wall panel 3; the minimum clear distance between the bottom surface and the top surface of the upper and lower beams 1 refers to the minimum distance between the bottom surface and the top surface of the beams 1 on the upper and lower floors for installing the exterior wall panel 3. The bottom surface of the beam 1 is an inclined surface, and the top surface of the exterior wall panel 3 is also an inclined surface. After the exterior wall panel 3 is fixed to the beam 1, the two inclined surfaces are generally parallel to each other. Since the maximum flipping radius of the exterior wall panel 3 is greater than the minimum clear distance between the bottom and top surfaces of the upper and lower beams 1, when the upper part of the exterior wall panel 3 tilts toward the outdoors during construction, the top surface of the beam 1 can automatically limit the exterior wall panel 3 from excessively flipping outward, thereby preventing the exterior wall panel 3 from falling during installation and construction.

[0022] The bottom of the beam 1 is fixedly connected to the top of the exterior wall panel 3. The bottom surface of the beam 1 is provided with a first embedded part 21 fixed inside the beam 1, and a first connecting plate 51 is fixed on the inner plate surface of the exterior wall panel 3 and near the top surface. The first connecting plate 51 and the first embedded part 21 are fixedly connected by a first connecting member 61. The first embedded part 21 is made of metal, generally steel. The first embedded part 21 includes a steel plate and at least one steel bar hook fixed to the back of the steel plate. The front of the steel plate is flush with the surface of the beam 1. The front of the steel plate is used to connect with the first connecting plate 51. The steel bar hook is fixed in the concrete of the beam 1 to ensure that the first embedded part 21 is firmly fixed to the beam 1. The first connecting plate 51 is fixed to the inner plate surface of the exterior wall panel 3 and near the top surface. The first connecting plate 51 is fixedly connected to the first connecting member 61. The first connecting member 61 is also fixedly connected to the first embedded part 21, so as to realize the fixed connection between the exterior wall panel 3 and the beam 1. In order to facilitate the construction of the fixed connection between the outer wall panel 3 and the beam 1 and ensure the connection quality, the first connecting member 61 can be a first angle steel, the edge where the top surface of the outer wall panel 3 and the inner panel surface intersect is located in the inner angle of the first angle steel, the first angle steel is welded to the first embedded part 21, the first angle steel is welded to the first connecting plate 51, and the first angle steel is arranged along the length direction of the outer wall panel 3. The first connecting plate 51 is a metal strip plate, preferably with an anti-corrosion coating. When the outer wall panel 3 is a lightweight prefabricated panel, its own strength is not high. In order to ensure that the first connecting plate 51 can be firmly fixed to the inner panel surface of the outer wall panel 3, a first flat plate bolt 41 is inserted between the inner and outer panel surfaces of the upper part of the outer wall panel 3, and the first connecting plate 51 is fixed to the inner panel surface of the outer wall panel 3 through the first flat plate bolt 41. The first flat bolt 41 is generally installed horizontally, and the distance between the first flat bolt 41 and the top surface of the outer wall panel 3 is at least 80 mm, so as to avoid excessive force exerted by the first flat bolt 41 on the outer wall panel 3, which may cause cracking and damage of the outer wall panel 3, and ensure the stability of the first flat bolt 41 and the first connecting plate 51.

[0023] The beam 1 is a reinforced concrete structure. In order to avoid the thermal bridge effect of the beam 1, an insulation board 8 is fixedly installed on the outdoor side of the beam 1. For example, the insulation board 8 is an autoclaved aerated concrete board and is fixed to the outdoor side of the beam 1 corresponding to the exterior through a plurality of expansion bolts 7. In order to make the exterior wall panel 3 and the beam 1 form a flat exterior wall surface, the outer surface of the insulation board 8 is flush with the outer panel surface of the exterior wall panel 3. The exterior wall panel 3 is installed inline, and the upper and lower sides of the insulation board 8 form joints with the exterior wall panel 3 respectively. In order to ensure the waterproof effect at the joint, a sealing structure is provided in the gap between the top surface of the beam 1 and the bottom surface of the exterior wall panel 3, and a sealing structure is provided in the gap between the bottom surface of the beam 1 and the top surface of the exterior wall panel 3. The sealing structure also closes the joint between the insulation board 8 and the exterior wall panel 3. The sealing structure mainly plays the role of filling the gap, leveling and waterproofing. For example, see Figure 2The sealing structure includes a sealing material 91, a PE rod 92 located on the side of the sealing material 91 corresponding to the outdoors, and a sealant 93 on the side of the PE rod 92 corresponding to the outdoors. The sealing material 91 is generally mortar or fine stone concrete, and the PE rod 92 is arranged along the length direction of the exterior wall panel 3 to solve the waterproof problem at the joints.

[0024] The bottom of the exterior wall panel 3 is fixedly connected to the top of the beam 1. A specific connection structure is provided below. Figure 1 , the top surface of the beam 1 and the bottom surface of the exterior wall panel 3 are both horizontal planes, and the top surface of the beam 1 is provided with a second embedded part 22 fixed inside the beam 1, and the second embedded part 22 is the same as the first embedded part 21. A second connecting plate 52 is fixed on the inner plate surface of the exterior wall panel 3 and close to the bottom surface, and the second connecting plate 52 is the same as the first connecting plate 51. The second connecting plate 52 and the second embedded part 22 are fixedly connected by a second connecting member 62. Since the beam 1 is often an integral part with the floor slab, and the top surfaces of the two are flush, the second connecting member 62 can be a second angle steel, and the positive angle of the second angle steel is located in the negative angle formed by the inner plate surface of the exterior wall panel 3 and the top surface of the beam 1, the second angle steel is welded to the second embedded part 22, and the second angle steel is welded to the second connecting plate 52, and the second angle steel is arranged along the length direction of the exterior wall panel 3.

[0025] The exterior wall panel 3 is generally a lightweight prefabricated panel with low strength. In order to ensure that the second connecting member 62 can be firmly fixed to the outer panel surface of the exterior wall panel 3, the second connecting plate 52 is fixed to the exterior wall panel 3 in the same manner as the first connecting plate 51 is fixed to the exterior wall panel 3. A second flat plate bolt 42 is inserted between the inner and outer panel surfaces at the lower part of the exterior wall panel 3, and the second connecting plate 52 is fixed to the inner panel surface of the exterior wall panel 3 by the second flat plate bolt 42. For example, the first flat plate bolt 41 and the second flat plate bolt 42 are the same, and the model is M14. The first flat plate bolt 41 and the second flat plate bolt 42 are respectively located in the middle of the length direction of the exterior wall panel 3. The first connecting plate 51 and the second connecting plate 52 are continuously arranged along the length direction of the exterior wall panel 3, so each exterior wall panel 3 is provided with one first flat plate bolt 41 and one second flat plate bolt 42.

[0026] In order for the first flat bolt 41 and the second flat bolt 42 to effectively fix the first connecting plate 51 and the second connecting plate 52, the distance between the first flat bolt 41 and the top surface of the exterior wall panel 3 is at least 80 mm, and the distance between the second flat bolt 42 and the bottom surface of the exterior wall panel 3 is at least 80 mm, so as to avoid the problem that the first flat bolt 41 and the second flat bolt 42 are too close to the top and bottom surfaces of the exterior wall panel 3, which may easily damage the exterior wall panel 3.

Claims

1. A node structure in which an exterior wall panel is embedded and fixed to a beam, comprising a beam (1), an exterior wall panel (3) fixed to the top of the beam (1), and an exterior wall panel (3) fixed to the bottom of the beam (1), wherein the beam (1) is a reinforced concrete structure, and is characterized in that: The bottom surface of the beam (1) is a slope that slopes downward from indoors to outdoors, the bottom surface of the beam (1) is provided with a first embedded part (21) fixed inside the beam (1), the top surface of the exterior wall panel (3) is a slope that slopes downward from the inner panel surface to the outer panel surface, the maximum turning radius of the exterior wall panel (3) is greater than the minimum clear distance between the bottom surface and the top surface of the upper and lower beams (1), a first connecting plate (51) is fixed on the inner panel surface of the exterior wall panel (3) and close to the top surface, and the first connecting plate (51) and the first embedded part (21) are fixedly connected via a first connecting member (61).

2. The node structure of the exterior wall panel embedded in the beam as claimed in claim 1, characterized in that: The first connecting member (61) is a first angle steel, the edge where the top surface and the inner panel surface of the outer wall panel (3) intersect is located in the inner angle of the first angle steel, the first angle steel is welded to the first embedded member (21), the first angle steel is welded to the first connecting plate (51), and the first angle steel is arranged along the length direction of the outer wall panel (3).

3. The node structure of the exterior wall panel embedded in the beam as claimed in claim 1, characterized in that: A heat preservation board (8) is also fixedly mounted on the side of the beam (1) corresponding to the outside, and the upper and lower sides of the heat preservation board (8) respectively form joints with the exterior wall board (3), and the outer surface of the heat preservation board (8) is flush with the outer board surface of the exterior wall board (3).

4. The node structure of the exterior wall panel embedded in the beam as claimed in claim 3, characterized in that: A sealing structure is provided at the gap between the top surface of the beam (1) and the bottom surface of the exterior wall panel (3), and a sealing structure is provided at the gap between the bottom surface of the beam (1) and the top surface of the exterior wall panel (3), and the sealing structure simultaneously seals the joint between the insulation panel (8) and the exterior wall panel (3).

5. The node structure of the exterior wall panel embedded in the beam as claimed in claim 4, characterized in that: The sealing structure comprises a sealing material (91), a PE rod (92) located on the side of the sealing material (91) corresponding to the outside, and a sealing glue (93) on the side of the PE rod (92) corresponding to the outside, the sealing material (91) is mortar or fine stone concrete, and the PE rod (92) is arranged along the length direction of the exterior wall panel (3).

6. The node structure of the exterior wall panel embedded in the beam according to any one of claims 1 to 5, characterized in that: The top surface of the beam (1) and the bottom surface of the exterior wall panel (3) are both horizontal planes. The top surface of the beam (1) is provided with a second embedded part (22) fixed inside the beam (1). A second connecting plate (52) is fixed on the inner plate surface of the exterior wall panel (3) and close to the bottom surface. The second connecting plate (52) and the second embedded part (22) are fixedly connected via a second connecting member (62).

7. The node structure of the exterior wall panel embedded in the beam as claimed in claim 6, characterized in that: The second connecting member (62) is a second angle steel, the outer angle of the second angle steel is located in the inner angle formed by the inner plate surface of the exterior wall panel (3) and the top surface of the beam (1), the second angle steel is welded to the second embedded member (22), the second angle steel is welded to the second connecting plate (52), and the second angle steel is arranged along the length direction of the exterior wall panel (3).

8. The node structure of the exterior wall panel embedded in the beam as claimed in claim 6, characterized in that: The exterior wall panel (3) is a lightweight prefabricated panel; a first flat plate bolt (41) is inserted between the inner and outer plate surfaces of the upper portion of the exterior wall panel (3); a first connecting plate (51) is fixed to the inner plate surface of the exterior wall panel (3) via the first flat plate bolt (41); a second flat plate bolt (42) is inserted between the inner and outer plate surfaces of the lower portion of the exterior wall panel (3); and the second connecting plate (52) is fixed to the inner plate surface of the exterior wall panel (3) via the second flat plate bolt (42).

9. The node structure of the exterior wall panel embedded in the beam as claimed in claim 8, characterized in that: The first flat plate bolt (41) and the second flat plate bolt (42) are both of M14 type. The first flat plate bolt (41) and the second flat plate bolt (42) are respectively located in the middle of the length direction of the external wall panel (3). The distance between the first flat plate bolt (41) and the top surface of the external wall panel (3) is at least 80 mm, and the distance between the second flat plate bolt (42) and the bottom surface of the external wall panel (3) is at least 80 mm.

10. The node structure of the exterior wall panel embedded in the beam as claimed in claim 6, characterized in that: The first embedded part (21) comprises a steel plate and at least one steel bar hook fixed to the back of the steel plate, the front of the steel plate is flush with the surface of the beam (1), and the steel bar hook is fixed in the concrete of the beam (1); the second embedded part (22) is the same as the first embedded part (21).

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