Reinforced node structure at steel open-web sandwich plate support
By setting vertical and transverse and oblique reinforcement plates, as well as vertical and transverse reinforcement plates at the steel fasting sandwich plate support, the problem of easy failure of traditional node structures under complex loads is solved, significantly improving the bending and shear strength of the structure and enhancing safety.
Patent Information
- Application Number
- CN202421484548.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-27
AI Technical Summary
When the traditional steel fasting sandwich plate bearing node structure faces multiple complex load combinations, it is prone to damage and failure, resulting in threats to structural safety.
The vertical and horizontal and oblique reinforcement plates are provided at the support of the steel fasting sandwich plate, and vertical reinforcement plates and transverse reinforcement plates are provided inside or backwards of the steel bone beam to disperse the stress at the nodes and enhance bending and shear strength.
By strengthening the plate setting, the stress concentration at the node is effectively dispersed, greatly enhancing the shear and bending strength of the nodes, and improving the safety and reliability of the structure.
Smart Images
Figure CN222759123U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel structure node reinforcement, in particular to a reinforced node structure at a steel hollow sandwich plate support. Background Art
[0002] In modern building structures, steel hollow sandwich panels, as a new type of composite structure, have been widely used in high-rise buildings, large-span spatial structures and other fields due to their light weight, high strength and excellent seismic performance. However, with the continuous expansion of building scale and the increasing complexity of structural design, the reliability of the connection between steel hollow sandwich panels and end support members has an increasingly significant impact on structural safety. Traditional support node structures are prone to damage and failure when faced with a variety of complex load combinations, posing serious hidden dangers to structural safety. Therefore, it is of great engineering practical significance to strengthen the structural design of the nodes at the supports of steel hollow sandwich panels to improve their bearing capacity and seismic performance. Utility Model Content
[0003] The utility model aims to provide a reinforced node structure at a steel hollow sandwich plate support in view of the deficiencies of the prior art, wherein longitudinal, transverse and oblique ribs are welded at the node, thereby dispersing the stress at the node and enhancing its bending and shear strength.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a reinforced node structure at a steel hollow sandwich plate support, comprising a steel frame beam, an upper chord is arranged on the upper side of the steel frame beam, a lower chord is arranged on the lower side of the steel frame beam, a vertical reinforcement plate connecting the three is arranged between the steel frame beam, the upper chord and the lower chord, an oblique reinforcement plate is arranged between the upper chord and the lower chord and the steel frame beam respectively, and a vertical rib plate and a transverse rib plate aligned with the upper and lower panels of the upper chord and the lower chord are arranged inside the steel frame beam or on the side facing away from the upper chord and the lower chord.
[0005] Preferably, the cross-sections of the steel beam, the upper chord and the lower chord are all I-shaped.
[0006] Preferably, the upper wing plate of the upper chord is butt-welded to the upper wing plate of the steel beam in a T-shape, and the lower wing plate of the lower chord is butt-welded to the lower wing plate of the steel beam in a T-shape.
[0007] Preferably, the butt welds between the upper wing plate of the upper chord and the upper wing plate of the steel frame beam, and the butt welds between the lower wing plate of the lower chord and the lower wing plate of the steel frame beam both adopt V-shaped grooves, and a pad is provided below the V-shaped grooves.
[0008] Preferably, the web plate and the lower wing plate of the upper chord, and the web plate and the upper wing plate of the lower chord are all T-shaped fillet welded to the web plate of the steel beam.
[0009] Preferably, the vertical reinforcing plate and the vertical rib plate are aligned with the webs of the upper chord and the lower chord.
[0010] Preferably, the transverse ribs are aligned with the wing plates of the upper chord and the lower chord.
[0011] Preferably, upper chord vertical plates connecting the upper and lower wing plates are arranged on both sides of the upper chord web, and an upper chord inclined plate connecting diagonally and obliquely downward is arranged in a rectangular frame formed by the upper and lower wing plates of the upper chord, the steel beam web and the upper chord vertical plates; lower chord vertical plates connecting the upper and lower wing plates are arranged on both sides of the lower chord web, and a lower chord inclined plate connecting diagonally and obliquely upward is arranged in a rectangular frame formed by the upper and lower wing plates of the lower chord, the steel beam web and the lower chord vertical plates.
[0012] Preferably, the upper chord vertical plate and the upper chord inclined plate, or the lower chord vertical plate and the lower chord inclined plate form a triangular reinforcement group. If a frame column is provided below the node of the upper chord rod and the lower chord rod, at least two triangular reinforcement groups are welded.
[0013] Preferably, the thickness of the vertical reinforcement plate, the oblique reinforcement plate, the vertical rib plate, the transverse rib plate, the upper chord vertical plate, the upper chord oblique plate, the lower chord vertical plate and the lower chord oblique plate is equal to the web thickness of the upper chord or the lower chord.
[0014] Preferably, the width of the vertical reinforcing plate is equal to the distance from the web of the steel frame beam to the upper chord vertical plate or the lower chord vertical plate.
[0015] The beneficial effects of the utility model are: a reinforced node structure at the support of a steel hollow sandwich plate, which includes a steel beam, an upper chord is arranged on the upper side of the steel beam, a lower chord is arranged on the lower side of the steel beam, a vertical reinforcing plate connecting the three is arranged between the steel beam, the upper chord and the lower chord, an oblique reinforcing plate is arranged between the upper chord and the lower chord and the steel beam respectively, and a vertical rib plate and a transverse rib plate aligned with the upper and lower panels of the upper chord and the lower chord are arranged inside the steel beam or on the side facing away from the upper chord and the lower chord. The utility model arranges longitudinal, transverse and oblique reinforcing plates at the node at the support of the steel hollow sandwich plate, which can disperse the stress concentration of the node, greatly enhance the shear and bending strength of the node, and also provides an economically feasible end node reinforcement scheme for the engineering practice of the steel hollow sandwich plate system. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1It is a structural schematic diagram of a reinforced node structure at a steel hollow sandwich plate support of the utility model;
[0017] Figure 2 It is a structural schematic diagram of a reinforced node structure at a steel open-web sandwich plate support with a frame column below;
[0018] Figure 3 The utility model is a three-dimensional structural schematic diagram of a reinforced node structure at a steel hollow sandwich plate support.
[0019] Description of reference numerals:
[0020] 1 – steel beam, 2 – frame column, 3 – upper chord, 4 – lower chord, 5 – vertical reinforcement plate, 6 – oblique reinforcement plate, 7 – vertical rib plate, 8 – transverse rib plate, 9 – pad, 10 – upper chord vertical plate, 11 – upper chord oblique plate, 12 – lower chord vertical plate, 13 – lower chord oblique plate. DETAILED DESCRIPTION
[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.
[0022] like Figures 1 to 3 As shown, a node reinforcement structure at the support of a steel hollow sandwich plate of an I-shaped steel beam 1 in this embodiment includes an upper chord 3 in which an upper wing plate is butt-welded to an upper wing plate of the steel beam 1, and a lower chord 4 in which a lower wing plate is butt-welded to a lower wing plate of the steel beam 1. In order to enhance the strength of the connection node between the upper chord 3, the lower chord 4 and the steel beam 1, a vertical reinforcement plate 5 is provided which is welded to the upper chord 3 and the lower chord 4 from top to bottom and to the web of the steel beam 1 from the side, and the vertical reinforcement plate 5 is aligned with the webs of the two chords; and oblique reinforcement plates 6 are also provided on both sides of the vertical reinforcement plate 5, which are welded to the web of the steel beam 1 and the lower wing plate of the upper chord 3 and to the web of the steel beam 1 and the upper wing plate of the lower chord 4. In order to enhance the tensile strength of the steel beam 1 on the upper chord 3 and the lower chord 4, a vertical rib plate 7 and a transverse rib plate 8 aligned with the upper and lower panels of the upper chord 3 and the lower chord 4 are provided on the side of the steel beam 1 facing away from the upper chord 3 and the lower chord 4. The vertical rib plate 7 is aligned with the webs of the two chords, and the two groups of the transverse rib plates 8 are aligned with the lower wing plate of the upper chord 3 and the upper wing plate of the lower chord 4, respectively.
[0023] In this embodiment, the upper wing plate of the upper chord 3 and the upper wing plate of the steel frame beam 1 form a T-shaped butt weld, and the lower wing plate of the lower chord 4 and the lower wing plate of the steel frame beam 1 form a T-shaped butt weld; the butt weld adopts a V-shaped groove, and a pad 9 is provided below the V-shaped groove.
[0024] In order to further enhance the strength of the upper chord 3 and the lower chord 4 at the nodes and disperse the stress concentration, upper chord vertical plates 10 connecting the upper and lower wing plates are arranged on both sides of the web of the upper chord 3, and an upper chord inclined plate 11 connecting diagonally and obliquely downward is arranged in a rectangular frame formed by the upper and lower wing plates of the upper chord 3, the web of the steel frame beam 1 and the upper chord vertical plates 10; lower chord vertical plates 12 connecting the upper and lower wing plates are arranged on both sides of the web of the lower chord 4, and a lower chord inclined plate 13 connecting diagonally and obliquely upward is arranged in a rectangular frame formed by the upper and lower wing plates of the lower chord 4, the web of the steel frame beam 1 and the lower chord vertical plates 12.
[0025] The upper chord vertical plate 10 and the upper chord inclined plate 11, or the lower chord vertical plate 12 and the lower chord inclined plate 13 form a triangular reinforcement group. If a frame column 2 is provided below the node of the upper chord rod 3 and the lower chord rod 4, at least two triangular reinforcement groups are welded.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A reinforced node structure at a steel hollow sandwich plate support, characterized in that: It includes a steel frame beam, an upper chord is arranged on the upper side of the steel frame beam, a lower chord is arranged on the lower side of the steel frame beam, a vertical reinforcement plate connecting the steel frame beam, the upper chord and the lower chord is arranged between the three, an oblique reinforcement plate is arranged between the upper chord and the lower chord and the steel frame beam respectively, and a vertical rib plate and a transverse rib plate aligned with the upper and lower panels of the upper chord and the lower chord are arranged inside the steel frame beam or on the side facing away from the upper chord and the lower chord.
2. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 1, characterized in that: The cross sections of the steel beam, the upper chord and the lower chord are all I-shaped.
3. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 2, characterized in that: The upper wing plate of the upper chord is butt-welded to the upper wing plate of the steel beam in a T-shape, and the lower wing plate of the lower chord is butt-welded to the lower wing plate of the steel beam in a T-shape.
4. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 3, characterized in that: The butt welds between the upper wing plate of the upper chord and the upper wing plate of the steel beam, and the butt welds between the lower wing plate of the lower chord and the lower wing plate of the steel beam all adopt V-shaped grooves, and a pad is arranged below the V-shaped grooves.
5. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 2, characterized in that: The web plate and the lower wing plate of the upper chord, the web plate and the upper wing plate of the lower chord are all T-shaped fillet welded to the web plate of the steel frame beam.
6. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 2, characterized in that: The vertical reinforcing plates and the vertical rib plates are aligned with the webs of the upper chord and the lower chord.
7. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 2, characterized in that: The transverse ribs are aligned with the wing plates of the upper chord and the lower chord.
8. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 2, characterized in that: Upper chord vertical plates connecting the upper and lower wing plates are arranged on both sides of the upper chord web, and an upper chord inclined plate connecting diagonally and obliquely downward is arranged in a rectangular frame formed by the upper and lower wing plates of the upper chord, the web of the steel beam and the upper chord vertical plates; lower chord vertical plates connecting the upper and lower wing plates are arranged on both sides of the lower chord web, and a lower chord inclined plate connecting diagonally and obliquely upward is arranged in a rectangular frame formed by the upper and lower wing plates of the lower chord, the web of the steel beam and the lower chord vertical plates.
9. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 8, characterized in that: The upper chord vertical plate and the upper chord inclined plate, or the lower chord vertical plate and the lower chord inclined plate form a triangular reinforcement group. If a frame column is provided below the node of the upper chord rod and the lower chord rod, at least two triangular reinforcement groups are welded.
10. The reinforced node structure at the support of a steel hollow sandwich plate according to claim 8, characterized in that: The thickness of the vertical reinforcement plate, the oblique reinforcement plate, the vertical rib plate, the transverse rib plate, the upper chord vertical plate, the upper chord oblique plate, the lower chord vertical plate and the lower chord oblique plate is equal to the web thickness of the upper chord or the lower chord.