Cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement

Abstract

The invention discloses a connection node structure of a cold-formed thin-walled steel exterior wall panel filled with magnesium oxysulfate cement, which is arranged between the exterior wall panel and the composite beam and includes an exterior connection node. The exterior connection node is in an "L" shape and includes a bottom plate connected to the composite beam and an end plate connected to the exterior wall panel; the bottom plate is fixed to the composite beam through a pin shaft connecting piece arranged on the composite beam; one end of the end plate is connected to the bottom plate, and the other end edge is provided with a U-shaped slot hole penetrating through both sides and is connected to a cross beam in the exterior wall panel through a limit bolt arranged in the U-shaped slot hole; the part of the end plate close to the bottom plate is connected to a vertical steel bar in the exterior wall panel. The invention realizes the bolt connection structure of the cold-formed thin-walled steel and the exterior node and the rotational deformation of the cold-formed thin-walled steel wall panel to adapt to the deformation of the main structure and will not affect the stiffness of the main structure. Moreover, by combining the exterior node of the wall panel and the out-of-plane limit node, the number of nodes is reduced and the on-site workload is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field, and particularly to a connection node structure of a cold-formed thin-walled steel external wall panel filled with magnesium oxysulfate cement. Background Art

[0002] The external hanging method is widely used for prefabricated maintenance external walls.

[0003] However, in practical applications, the external wall panels usually adopt concrete panels, which have a large self-weight and complex connection structures, and the relevant node structures cannot adapt to the light steel keel composite external wall.

[0004] If the connection method of the light steel keel composite wall panel is adopted, it usually cannot adapt to the deformation of the main structure.

[0005] Although in the prior art, cold-formed thin-walled steel external wall panels filled with magnesium oxysulfate cement have been applied to overcome the above problems, it is still impossible to make the external wall panel adapt to the deformation of the main structure in the plane while ensuring the stiffness of the main structure.

[0006] Therefore, how to make the external wall panel adapt to the deformation of the main structure in the plane while ensuring the stiffness of the main structure has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0007] In view of the above-mentioned defects of the prior art, the present invention provides a connection node structure of a cold-formed thin-walled steel external wall panel filled with magnesium oxysulfate cement, and the achieved purpose is to make the external wall panel adapt to the deformation of the main structure in the plane while ensuring the stiffness of the main structure.

[0008] To achieve the above purpose, the present invention discloses a connection node structure of a cold-formed thin-walled steel external wall panel filled with magnesium oxysulfate cement, which is arranged between the external wall panel and the composite beam, and includes an external connection node;

[0009] The external connection node is in an "L" shape, and includes a bottom plate connected to the composite beam and an end plate connected to the external wall panel;

[0010] The bottom plate is fixed to the composite beam through a pin shaft connecting member arranged on the composite beam;

[0011] One end of the end plate is connected to the bottom plate, and the other end edge is provided with a U-shaped slot hole penetrating both sides, and is connected to a cross beam in the external wall panel through a limit bolt arranged in the U-shaped slot hole;

[0012] The part of the end plate close to the bottom plate is connected to a vertical steel bar in the external wall panel.

[0013] Preferably, at the bending position where the end plate and the bottom plate are connected, triangular lower vertical stiffeners are provided at positions close to both side edges;

[0014] On both sides from the middle of the end plate to one end where the U-shaped slot is provided, upper vertical stiffeners are provided;

[0015] Horizontal stiffeners are provided between the two upper vertical stiffeners and the two lower vertical stiffeners;

[0016] The horizontal stiffener is perpendicular to each upper vertical stiffener and each lower vertical stiffener.

[0017] Preferably, the cross beam is a thin-walled section steel with a "C"-shaped cross section, and is arranged at the far end within the external wall panel not less than 50 millimeters away from the composite beam;

[0018] The limit bolt passes through the external wall panel from within the cross beam, passes through the U-shaped slot, and then a nut is provided.

[0019] More preferably, a reinforcing steel plate is provided at the opening position of the cross beam.

[0020] More preferably, a heat insulation pad is provided between the bolt head of the limit bolt within the cross beam and the inner wall of the cross beam;

[0021] An outer limit backing plate is provided at one end of the limit bolt where the nut is provided after passing through the U-shaped slot;

[0022] The outer limit backing plate is provided between the end plate and the nut.

[0023] Preferably, the section steel vertical rod is arranged at the proximal end within the external wall panel close to the overlapping part with the composite beam, and the length direction is arranged crosswise with the length direction of the composite beam;

[0024] The cross section of the section steel vertical rod is "C"-shaped, and a section steel reinforcing vertical rod is provided on the side facing away from the opening;

[0025] The cross section of the section steel reinforcing vertical rod is "C"-shaped, the opening direction is opposite to that of the section steel vertical rod, and its length direction is parallel to that of the section steel vertical rod;

[0026] Both the section steel vertical rod and the section steel reinforcing vertical rod are connected to the end plate through a plurality of bolts arranged along the length direction;

[0027] Heat insulation plates are provided between the end plate and the section steel vertical rod, and between the end plate and the section steel reinforcing vertical rod.

[0028] More preferably, on the side of the end plate facing the steel profile vertical bar and the steel profile reinforcing vertical bar, there are ear plates corresponding to the gap between the steel profile vertical bar and the steel profile reinforcing vertical bar;

[0029] One side of the ear plate is fixed to the side of the end plate facing the steel profile vertical bar and the steel profile reinforcing vertical bar, and the other side is inserted into the gap between the steel profile vertical bar and the steel profile reinforcing vertical bar, and is connected to the steel profile vertical bar and the steel profile reinforcing vertical bar by a plurality of bolts.

[0030] Preferably, the pin shaft connecting member includes a pin shaft end plate and a pin shaft;

[0031] One side of the pin shaft end plate is fixed to the embedded part of the composite beam, and the other side faces the bottom plate;

[0032] The pin shaft is arranged on the other side of the pin shaft end plate facing the bottom plate, and the other end passes through the bottom plate and is provided with a limiting rod;

[0033] A plurality of U-shaped groove backing plates are arranged on the side wall of the pin shaft between the pin shaft end plate and the bottom plate.

[0034] More preferably, the embedded part includes an embedded steel plate, a plurality of stud bolts and shear-resistant reinforcing anchor bars;

[0035] One side of the embedded steel plate is welded to the pin shaft end plate, and the other side is embedded in the composite beam and welded with a plurality of stud bolts;

[0036] Inside the composite beam, the shear-resistant reinforcing anchor bars are arranged inside a plurality of the stud bolts.

[0037] Preferably, the bottom plate is provided with a large round hole at the position corresponding to the pin shaft passing through, and the diameter of the large round hole is more than 25 mm larger than the diameter of the pin shaft;

[0038] A horizontal adjusting backing plate is provided on the lower surface of the bottom plate;

[0039] The horizontal adjusting backing plate is provided with a small round hole at the position corresponding to the pin shaft passing through, and the diameter of the small round hole is not more than 2 mm larger than the pin shaft.

[0040] Advantages of the present invention:

[0041] In the present invention, the cold-formed thin-walled steel profiles are connected to the external hanging nodes by bolts. Through the heat insulation structure, the heat conduction of the wallboard is reduced. By combining the external hanging connection and the out-of-plane limit design, the number of connection points between the external hanging wallboard and the main structure is reduced. Through the rotary deformation structure, the external hanging wallboard can better adapt to the deformation of the main structure in the plane without having an adverse impact on the stiffness of the main structure.

[0042] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, features and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Schematic structural diagram showing an embodiment of the present invention.

[0044] Figure 2 Schematic structural diagram showing the connection of the external hanging connection node with the external hanging wall panel and the composite beam in an embodiment of the present invention.

[0045] Figure 3 Schematic structural diagram showing the heat insulation board provided on the steel vertical bar and the steel reinforced vertical bar in an embodiment of the present invention.

[0046] Figure 4 Schematic structural diagram showing the steel vertical bar or the steel reinforced vertical bar in an embodiment of the present invention.

[0047] Figure 5 Schematic structural diagram showing the heat insulation board in an embodiment of the present invention.

[0048] Figure 6 Schematic structural diagram showing the external hanging connection node in an embodiment of the present invention.

[0049] Figure 7 Exploded structural diagram showing the external hanging connection node in an embodiment of the present invention.

[0050] Figure 8 Schematic structural diagram showing the cross beam in an embodiment of the present invention.

[0051] Figure 9 Schematic structural diagram showing the pin connection member provided on the composite beam in an embodiment of the present invention.

[0052] Figure 10 Schematic structural diagram showing the embedded part in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] Embodiment

[0054] As Figure 1 、 Figure 2 and Figure 9 shown, the cold-formed thin-walled steel external hanging wall panel connection node structure filled with magnesium oxysulfate cement is arranged between the external hanging wall panel and the composite beam 3 and includes an external hanging connection node 4.

[0055] The external hanging connection node 4 is in an "L" shape and includes a bottom plate 43 connected to the composite beam 3 and an end plate 41 connected to the external hanging wall panel;

[0056] The bottom plate 43 is fixed to the composite beam 3 through a pin connection member 5 provided on the composite beam 3;

[0057] One end of the end plate 41 is connected to the bottom plate 43, and the other end edge is provided with a U-shaped slot hole penetrating both sides, and is connected to the cross beam 10 in the external wall panel through a limit bolt 6 arranged in the U-shaped slot hole;

[0058] The part of the end plate 41 close to the bottom plate 43 is connected to the vertical steel bar 7 in the external wall panel.

[0059] The present invention realizes the connection and fixation between the composite beam 3 and the external wall panel through the external connection node 4 by means of the limit bolt 6, realizes the bolt connection structure between the cold-formed thin-walled steel and the external node, realizes the rotational deformation of the cold-formed thin-walled steel wall panel to adapt to the deformation of the main structure, and will not affect the stiffness of the main structure. By combining the external node and the out-of-plane limit node of the wall panel, the number of nodes is reduced and the on-site workload is reduced.

[0060] As Figures 2 to 7 shown, in some embodiments, at the bending part where the end plate 41 and the bottom plate 43 are connected, triangular lower vertical stiffening ribs 45 are provided at positions close to both side edges;

[0061] Both sides from the middle of the end plate 41 to the end with the U-shaped slot hole are provided with upper vertical stiffening ribs 46;

[0062] A horizontal stiffening rib 44 is provided between the two upper vertical stiffening ribs 46 and the two lower vertical stiffening ribs 45;

[0063] The horizontal stiffening rib 44 is perpendicular to each upper vertical stiffening rib 46 and each lower vertical stiffening rib 45.

[0064] As Figure 1 、 Figure 2 and Figure 8 shown, in some embodiments, the cross beam 10 is a thin-walled steel with a "C"-shaped cross section, and is arranged at the distal end 2 in the external wall panel not less than 50 mm away from the composite beam 3;

[0065] The limit bolt 6 passes through the cross beam 10 and penetrates the external wall panel, and passes through the U-shaped slot hole and then is provided with a nut 61.

[0066] In some embodiments, a reinforcing steel plate 11 is provided at the opening position of the cross beam 10.

[0067] In some embodiments, a heat insulation pad is provided between the bolt head of the limit bolt 6 located in the cross beam 10 and the inner wall of the cross beam 10;

[0068] One end of the limit bolt 6 passing through the U-shaped slot hole and provided with a nut 61 is provided with an external limit backing plate 48;

[0069] The external limit backing plate 48 is arranged between the end plate 41 and the nut 61.

[0070] As Figures 3 to 6 shown, in some embodiments, the profiled steel vertical rod 7 is arranged near the proximal end 1 that overlaps with the composite beam 3 inside the hanging wall panel, and the length direction thereof is arranged crosswise to the length direction of the composite beam 3;

[0071] The cross-section of the profiled steel vertical rod 7 is in a "C" shape, and a profiled steel reinforcing vertical rod 8 is provided on the side facing away from the opening;

[0072] The cross-section of the profiled steel reinforcing vertical rod 8 is in a "C" shape, the opening direction thereof is opposite to that of the profiled steel vertical rod 7, and its length direction is parallel to that of the profiled steel vertical rod 7;

[0073] Both the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8 are connected to the end plate 41 through a plurality of bolts arranged along the length direction;

[0074] Heat insulation plates 12 are provided between the end plate 41 and the profiled steel vertical rod 7, and between the end plate 41 and the profiled steel reinforcing vertical rod 8.

[0075] In some embodiments, on the side of the end plate 41 facing the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8, ear plates 42 are provided corresponding to the gap between the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8;

[0076] One side of the ear plate 42 is fixed to the side of the end plate 41 facing the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8, and the other side is inserted into the gap between the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8 and is connected to the profiled steel vertical rod 7 and the profiled steel reinforcing vertical rod 8 through a plurality of bolts.

[0077] As Figure 1 , Figure 2 , Figure 9 and Figure 10 shown, in some embodiments, the pin connection member 5 includes a pin end plate 51 and a pin 52;

[0078] One side of the pin end plate 51 is fixed to the embedded part 9 of the composite beam 3, and the other side faces the bottom plate 43;

[0079] The pin 52 is arranged on the other side of the pin end plate 51 facing the bottom plate 43, and the other end passes through the bottom plate 43 and is provided with a limiting rod 53;

[0080] A plurality of U-shaped groove pads 54 are provided on the side wall of the pin 52 between the pin end plate 51 and the bottom plate 43.

[0081] In practical applications, after the pin connector 5 is horizontally positioned, the pin end plate 51 is connected to the embedded part 9 including the embedded steel plate 91 through a U-shaped fillet weld. A number of U-shaped groove pads 54 are provided on the pin end plate 51 to enable the adjustment of the vertical elevation of the external wall panel. After the adjustment is completed, all the U-shaped groove pads 54 are fixed to the pin end plate 51 through fillet welds. After the external wall panel is in place and the horizontal and vertical elevations are adjusted, a limiting rod 53 is provided at the top of the pin 52 to prevent the external wall panel from falling off the pin 52 during rotational deformation.

[0082] As Figure 10 shown, in some embodiments, the embedded part 9 includes an embedded steel plate 91, a plurality of stud bolts 92 and shear-resistant reinforcing anchor bars 93;

[0083] One side of the embedded steel plate 91 is welded to the pin end plate 51, and the other side is embedded in the composite beam 3 and welded with a plurality of stud bolts 92;

[0084] Inside the composite beam 3, shear-resistant reinforcing anchor bars 93 are provided inside the plurality of stud bolts 92.

[0085] In practical applications, providing shear-resistant reinforcing anchor bars 93 inside the plurality of stud bolts 92 can enhance the shear resistance of the stud bolts 92 and the embedded steel plate 91.

[0086] In some embodiments, the bottom plate 43 is provided with a large round hole at the position where the pin 52 passes through, and the diameter of the large round hole is more than 25 mm larger than the diameter of the pin 52;

[0087] A horizontal adjusting pad 47 is provided below the bottom plate 43;

[0088] The horizontal adjusting pad 47 is provided with a small round hole at the position where the pin 52 passes through, and the diameter of the small round hole is less than 2 mm larger than the diameter of the pin 52.

[0089] In practical applications, the bottom plate 43 is provided with a large round hole with a diameter more than 25 mm larger than the diameter of the pin 52 for adjusting the horizontal position error of the external wall panel; the horizontal adjusting pad 47 is provided with a small round hole with a diameter less than 2 mm larger than the diameter of the pin 52. After the horizontal position of the bottom plate 43 is adjusted in place, the horizontal adjusting pad 47 is connected to the bottom plate 43 through a U-shaped fillet weld.

[0090] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the existing technology should fall within the protection scope determined by the claims.

Claims

1. The connecting node structure of the cold-formed thin-walled steel exterior wall panel filled with magnesium oxysulfate cement is arranged between the exterior wall panel and the composite beam (3); It is characterized in that, it includes an exterior wall connecting node (4); The exterior wall connecting node (4) is in an "L" shape, including a bottom plate (43) connected to the composite beam (3) and an end plate (41) connected to the exterior wall panel; The bottom plate (43) is fixed to the composite beam (3) through a pin connecting member (5) arranged on the composite beam (3); One end of the end plate (41) is connected to the bottom plate (43), and the other end edge is provided with a U-shaped slot hole penetrating both sides, and is connected to a cross beam (10) inside the exterior wall panel through a limit bolt (6) arranged in the U-shaped slot hole; The part of the end plate (41) close to the bottom plate (43) is connected to a vertical steel bar (7) inside the exterior wall panel; The vertical steel bar (7) is arranged near the proximal end (1) overlapping with the composite beam (3) inside the exterior wall panel, and the length direction is arranged crosswise with the length direction of the composite beam (3); The cross section of the vertical steel bar (7) is in a "C" shape, and a reinforcing vertical steel bar (8) is provided on the side facing away from the opening; The cross section of the reinforcing vertical steel bar (8) is in a "C" shape, and the opening direction is opposite to that of the vertical steel bar (7), and its length direction is parallel to that of the vertical steel bar (7); Both the vertical steel bar (7) and the reinforcing vertical steel bar (8) are connected to the end plate (41) through a plurality of bolts arranged along the length direction; Heat insulation plates (12) are arranged between the end plate (41) and the vertical steel bar (7), and between the end plate (41) and the reinforcing vertical steel bar (8); The pin connecting member (5) includes a pin end plate (51) and a pin (52); One side of the pin end plate (51) is fixed to the embedded part (9) of the composite beam (3), and the other side faces the bottom plate (43); The pin (52) is arranged on the other side of the pin end plate (51) facing the bottom plate (43), and the other end passes through the bottom plate (43) and is provided with a limit rod (53); A plurality of U-shaped groove pads (54) are arranged on the side wall of the pin (52) between the pin end plate (51) and the bottom plate (43); The bottom plate (43) is provided with a large round hole at the position corresponding to the penetration of the pin (52), and the diameter of the large round hole is more than 25 mm larger than the diameter of the pin (52); A horizontal adjusting pad (47) is arranged under the bottom plate (43); The horizontal adjusting pad (47) is provided with a small round hole at the position corresponding to the penetration of the pin (52), and the diameter of the small round hole is less than 2 mm larger than the diameter of the pin (52).

2. The connecting node structure of the cold-formed thin-walled steel exterior wall panel filled with magnesium oxysulfate cement according to claim 1, It is characterized in that, At the bending part where the end plate (41) and the bottom plate (43) are connected, triangular lower vertical stiffeners (45) are arranged near both side edges; Upper vertical stiffeners (46) are arranged on both sides from the middle of the end plate (41) to one end provided with the U-shaped slot hole; A horizontal stiffener (44) is provided between the two upper vertical stiffeners (46) and the two lower vertical stiffeners (45); The horizontal stiffener (44) is perpendicular to each of the upper vertical stiffeners (46) and each of the lower vertical stiffeners (45).

3. The cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement according to claim 1, characterized in that The crossbeam (10) is a thin-walled steel section with a "C" cross-section, and is arranged at the distal end (2) within the exterior wall panel not less than 50 mm away from the composite beam (3); The limit bolt (6) passes through the exterior wall panel from inside the crossbeam (10), passes through the U-shaped slot hole and is provided with a nut (61).

4. The cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement according to claim 3, characterized in that A reinforcing steel plate (11) is provided at the opening position of the crossbeam (10).

5. The cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement according to claim 3, characterized in that An insulating pad is provided between the bolt head of the limit bolt (6) located inside the crossbeam (10) and the inner wall of the crossbeam (10); An outer limit backing plate (48) is provided at one end of the limit bolt (6) passing through the U-shaped slot hole and provided with a nut (61); The outer limit backing plate (48) is arranged between the end plate (41) and the nut (61).

6. The cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement according to claim 1, characterized in that On the side of the end plate (41) facing the steel section vertical bar (7) and the steel section reinforcing vertical bar (8), an ear plate (42) is provided corresponding to the gap between the steel section vertical bar (7) and the steel section reinforcing vertical bar (8); One side of the ear plate (42) is fixed to the side of the end plate (41) facing the steel section vertical bar (7) and the steel section reinforcing vertical bar (8), and the other side is inserted into the gap between the steel section vertical bar (7) and the steel section reinforcing vertical bar (8), and is connected to the steel section vertical bar (7) and the steel section reinforcing vertical bar (8) by a plurality of bolts.

7. The cold-formed thin-walled steel exterior wall panel connection node structure filled with magnesium oxysulfate cement according to claim 1, characterized in that The embedded part (9) includes an embedded steel plate (91), a plurality of stud bolts (92) and shear-resistant reinforcing anchor bars (93); One side of the embedded steel plate (91) is welded to the pin shaft end plate (51), and the other side is embedded in the composite beam (3) and welded with a plurality of stud bolts (92); Inside the composite beam (3), the shear-resistant reinforcing anchor bars (93) are provided inside the plurality of stud bolts (92).

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