Regular hexagon hole part reinforced honeycomb beam

Abstract

The utility model belongs to the technical field of building structure engineering, and particularly relates to a regular hexagon hole partially-reinforced honeycomb beam which comprises a steel beam upper flange plate, a steel beam lower flange plate, a honeycomb beam web and an annular reinforcing plate, and the honeycomb beam web is vertically arranged between the steel beam upper flange plate and the steel beam lower flange plate. The honeycomb beam web is fixedly connected with the steel beam upper flange plate and the steel beam lower flange plate. The annular reinforcing plates are arranged on the edges of regular hexagon orifices of the honeycomb beams on the two sides of the honeycomb beam web. The annular reinforcing plate has two forms, wherein the first form is an annular reinforcing steel plate of which the inner side and the outer side are circular-arc-shaped; in the second type, the outer side is an arc, and the inner side is a three-fold-line type annular reinforcing steel plate attached to the edge of the regular hexagon hole. According to the utility model, the stability and the bearing capacity of the castellated beam under the condition of complex stress are improved, the problems of hole deformation, hole corner tearing and inter-hole web buckling caused by complex and concentrated stress distribution around holes are relieved, and the castellated beam has wide application prospect and practical value.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building structure engineering, especially relates to a part of hexagonal hole reinforced honeycomb beam. BACKGROUND

[0002] Honeycomb beams are widely used in modern buildings due to their unique open-hole structure, which can effectively reduce the structural self-weight and meet specific spatial and functional requirements. However, due to the weakening of the web section by the open holes, the honeycomb beam is prone to local buckling failure at the hole opening under stress. When subjected to large loads, the stress distribution around the hole opening is complex and concentrated, which can accelerate the deformation of the hole, tear the hole corner, and cause the web between the holes to buckle, thereby reducing the ductility of the honeycomb beam and degrading its energy dissipation performance. Not only does this reduce the load-carrying capacity of the honeycomb beam, but it also affects its seismic performance.

[0003] Traditional honeycomb beam design mainly focuses on the full-hole reinforcement of the web of the honeycomb beam to address this issue, which may result in material waste and the inability to form effective plastic hinges at the hole opening. Partial reinforcement of the hole opening of the honeycomb beam web may solve these problems, thus there is an urgent need for a new, efficient, and cost-effective hole opening reinforcement structure. SUMMARY

[0004] To address the shortcomings of existing technology, the utility model optimizes stress distribution by setting a ring-shaped reinforcement plate at the hole opening, enhances the load-carrying capacity and stability of the structure, reduces construction difficulty and cost, and improves the overall performance of the honeycomb beam.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution:

[0006] A hexagonal hole partially reinforced honeycomb beam, comprising a steel beam upper flange plate, a steel beam lower flange plate, a honeycomb beam web, and a ring-shaped reinforcement plate. The honeycomb beam web is vertically arranged between the steel beam upper flange plate and the steel beam lower flange plate, and is fixedly connected to the steel beam upper flange plate and the steel beam lower flange plate. The ring-shaped reinforcement plate is arranged at the edge of the hexagonal hole opening of the honeycomb beam on both sides of the honeycomb beam web.

[0007] The inner side and the outer side of the ring-shaped reinforcement plate are both circular arcs. The inner side circular arc coincides with the position of the circumscribed circle of the hexagonal hole opening.

[0008] The inner side circular arc of the ring-shaped reinforcement plate has an arc angle of α 内 = 2arccos(1-η), and the inner side circular arc length is The outer side circular arc has an arc angle of The outer side circular arc length is In the formula, η is the ratio of the groove depth of the annular reinforcing plate to the radius of the circumscribed circle of the regular hexagonal hole; r is the radius of the circumscribed circle of the regular hexagonal hole; and D is the width of the annular reinforcing plate.

[0009] The width of the annular reinforcing steel plate is uniformly distributed along the hole edge.

[0010] The outer side of the annular reinforcing plate is in the shape of a circular arc; and the inner side is in the shape of a three-fold line type annular that is fitted to the regular hexagonal hole edge of the cellular beam.

[0011] The radian of the outer side circular arc of the annular reinforcing steel plate is The arc length of the outer side circular arc is In the formula, η is the ratio of the groove depth of the annular reinforcing plate to the radius of the circumscribed circle of the regular hexagonal hole; r is the radius of the circumscribed circle of the regular hexagonal hole; and R is the radius of the circle corresponding to the outer side circular arc.

[0012] The annular reinforcing plate is made of high-strength steel material.

[0013] The thickness of the annular reinforcing plate is greater than or equal to 0.8 times the thickness of the web of the cellular beam.

[0014] The annular reinforcing plate and the web of the cellular beam are fixedly connected through welding.

[0015] The radian of the annular reinforcing plate is consistent with the radian of the circumscribed circle of the regular hexagonal hole.

[0016] The beneficial effects of the present utility model are:

[0017] Compared with the traditional full-hole reinforcing mode of the cellular beam, the present utility model sets the annular reinforcing plate at the edge of the regular hexagonal hole of the cellular beam to reinforce the hole part, which not only improves the bearing capacity of the cellular beam, but also effectively avoids the problems of material waste caused by the full-hole reinforcing of the web of the cellular beam, the inability of the hole part to form effective plastic hinge, and the like, significantly improves the stability and bearing capacity of the cellular beam under complex stress conditions, effectively solves the problem of stress concentration of the hole, and can relieve the problems of hole deformation, hole corner tearing and inter-hole web buckling caused by the complex and concentrated stress distribution around the hole, thereby improving the ductility and energy dissipation performance of the cellular beam, improving not only the bearing capacity of the cellular beam, but also the seismic performance of the cellular beam, and has broad application prospect and practical value, and provides an innovative and reliable reinforcing solution for the cellular beam in the field of building structure engineering. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 FIG. 1 is a front view structural schematic diagram of a regular hexagonal hole partially reinforced cellular beam according to the present utility model embodiment one;

[0019] Fig. 2 FIG. 2 is a side view structural schematic diagram of the regular hexagonal hole partially reinforced cellular beam according to the present utility model embodiment one.

[0020] Fig. 3 It is a front view structural schematic diagram of the annular reinforcing plate in the embodiment one of the utility model;

[0021] Fig. 4 It is a front view structural schematic diagram of the part-strengthened honeycomb beam with regular hexagonal holes in the embodiment two of the utility model;

[0022] Fig. 5 It is a side view structural schematic diagram of the part-strengthened honeycomb beam with regular hexagonal holes in the embodiment two of the utility model;

[0023] Fig. 6 It is a front view structural schematic diagram of the annular reinforcing plate in the embodiment two of the utility model;

[0024] Wherein: 1, honeycomb beam web; 2, steel beam upper flange plate; 3, steel beam lower flange plate; 4, regular hexagonal hole; 5, annular reinforcing plate. DETAILED DESCRIPTION

[0025] In order to better explain the utility model, so as to facilitate understanding, the technical scheme and effect of the utility model are described in detail by specific embodiments combined with the drawings.

[0026] Embodiment one

[0027] As shown in Figs. 1-3 The embodiment provides a part-strengthened honeycomb beam with regular hexagonal holes, which comprises a steel beam upper flange plate 2, a steel beam lower flange plate 3, a honeycomb beam web 1 and an annular reinforcing plate 5, the honeycomb beam web 1 is vertically arranged between the steel beam upper flange plate 2 and the steel beam lower flange plate 3, and the honeycomb beam web 1 is welded and fixed with the steel beam upper flange plate 2 and the steel beam lower flange plate 3 respectively, annular reinforcing plates 5 are arranged at both sides of the honeycomb beam web 1 at the edges of the regular hexagonal hole of the honeycomb beam, and the inner side and the outer side of the annular reinforcing plate 5 are both arc-shaped; the inner side arc coincides with the position of the circumscribed circle of the regular hexagonal hole, the thickness of the annular reinforcing plate 5 is reasonably designed according to the bearing requirement and the size of the honeycomb beam, the annular reinforcing plate 5 is made of high-strength steel material to ensure that it can effectively share the stress concentration near the hole. In the embodiment, four annular reinforcing plates 5 are welded at the upper and lower edges and the left and right edge regions of the honeycomb hole. The annular reinforcing plate 5 is fixedly connected with the honeycomb beam web 1 through welding, so that the reliability and integrity of the connection are ensured.

[0028] The radian of the annular reinforcing plate 5 is consistent with the radian of the circumscribed circle of the regular hexagonal hole.

[0029] Because the presence of the annular reinforcing plate 5 changes the force transmission path, the stress distribution on the web of the honeycomb beam 1 becomes more uniform, thereby reducing the requirement for the thickness of the annular reinforcing plate 5 to a certain extent. Therefore, its thickness can be less than the thickness of the web of the honeycomb beam 1. Usually, the thickness of the annular reinforcing plate 5 should not be less than 80% of the thickness of the web of the honeycomb beam 1.

[0030] The inner arc radius of the annular reinforcing plate 5 is α. 内 =2arccos(1-η), the arc length of the inner circle is The outer arc radius is The outer arc length is In the formula: η is the ratio of the groove depth of the inner arc-shaped annular reinforcing plate 5 to the radius of the circumscribed circle of the regular hexagonal hole, and η takes a value between 0 and 1; r is the radius of the circumscribed circle of the hexagonal hole; D is the width of the annular reinforcing plate 5.

[0031] The width of the annular reinforcing plate 5 is evenly distributed along the edge of the orifice, and the value ranges from 75mm to 125mm.

[0032] Example 2

[0033] like Figs. 4-6 As shown, this embodiment of a hexagonal hole-reinforced honeycomb beam includes an upper flange plate 2, a lower flange plate 3, a honeycomb beam web 1, and an annular reinforcing plate 5. The honeycomb beam web 1 is vertically arranged between the upper flange plate 2 and the lower flange plate 3. The honeycomb beam web 1 is welded and fixed to the upper flange plate 2 and the lower flange plate 3, respectively. At the edge of the hexagonal hole of the honeycomb beam, annular reinforcing plates 5 are provided on both sides of the honeycomb beam web 1. The outer side of the annular reinforcing plate 5 is arc-shaped, and the inner side is a three-fold line annular shape that fits the edge of the hexagonal hole of the honeycomb beam. The three-fold line on the inner side of the annular reinforcing steel plate coincides with the edge of the hexagonal hole. The width of the annular reinforcing plate 5 is evenly distributed along the edge of the hole. The thickness of the annular reinforcing plate 5 is reasonably designed according to the load-bearing requirements and dimensions of the honeycomb beam. The annular reinforcing plate 5 is made of high-strength steel to ensure that it can effectively distribute the stress concentration near the hole. In this embodiment, four annular reinforcing plates 5 are welded to the upper and lower edges and the left and right edge areas of the honeycomb hole opening.

[0034] The annular reinforcing plate 5 is fixedly connected to the web plate 1 of the honeycomb beam by welding to ensure the reliability and integrity of the connection.

[0035] The curvature of the annular reinforcing plate 5 is consistent with the circumcircle curvature of the regular hexagonal opening.

[0036] The stress distribution on the web plate 1 of the honeycomb beam is more uniform due to the change of the force transmission path caused by the existence of the annular reinforcing plate 5, so that the requirement for the thickness of the annular reinforcing plate 5 is reduced to a certain extent, and therefore the thickness of the annular reinforcing plate 5 can be smaller than the thickness of the web plate 1 of the honeycomb beam, and generally the thickness of the annular reinforcing plate 5 should not be less than 80% of the thickness of the web plate 1 of the honeycomb beam.

[0037] The radian of the outer side circular arc of the annular reinforcing steel plate is The arc length of the outer side circular arc is In the formula, η is the ratio of the groove depth of the three-fold line type annular reinforcing plate 5 to the radius of the circumscribed circle of the hexagonal hole, and η is between 0 and 1; r is the radius of the circumscribed circle of the hexagonal hole; R is the radius of the circle corresponding to the outer side circular arc, and the outer side circular arc radii of the two reinforcing plates are the same.

[0038] The two embodiments above customize the annular reinforcing plate 5 of appropriate specifications according to the design size and bearing requirement of the honeycomb beam with hexagonal holes. After the honeycomb beam is processed and formed, the edges of the hexagonal holes are pretreated to ensure the surface to be smooth, oil-free and impurity-free, so as to ensure the connection quality between the annular reinforcing plate 5 and the honeycomb beam. The annular reinforcing plate 5 is accurately positioned at the edges of the holes by welding, and welding operation is performed according to the predetermined welding process, so as to ensure that the weld is uniform and full, without defects such as pores and cracks. After welding is completed, necessary flaw detection is performed to ensure that the welding quality meets the strength requirement.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model.

Claims

1. A hexagonal hole partially reinforced cellular beam, characterized by: The steel beam upper flange plate, the steel beam lower flange plate, the honeycomb beam web and the annular reinforcing plate are arranged vertically between the steel beam upper flange plate and the steel beam lower flange plate, and the honeycomb beam web is fixedly connected with the steel beam upper flange plate and the steel beam lower flange plate respectively, and the annular reinforcing plate is arranged at the edge of the hexagonal orifice of the honeycomb beam on both sides of the honeycomb beam web.

2. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The inner side and the outer side of the annular reinforcing plate are both circular arcs, and the inner side circular arc coincides with the position of the circumscribed circle of the hexagonal orifice.

3. A hexagonal hole partially reinforced cellular beam according to claim 2, characterized in that: The inner side circular arc radian of the ring-shaped reinforcing plate is α 内 The inner side circular arc length of the ring-shaped reinforcing plate is The outer side circular arc radian of the ring-shaped reinforcing plate is The outer side circular arc length of the ring-shaped reinforcing plate is In the formula, η is the ratio of the groove depth of the ring-shaped reinforcing plate to the radius of the circumscribed circle of the hexagon hole; r is the radius of the circumscribed circle of the hexagon hole; and D is the width of the ring-shaped reinforcing plate.

4. A hexagonal hole partially reinforced cellular beam according to claim 2, characterized in that: The width of the annular reinforcing plate is uniformly distributed along the orifice edge.

5. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The outer side of the annular reinforcing plate is a circular arc, and the inner side is a three-fold line type that is fitted to the hexagonal orifice edge of the honeycomb beam.

6. A hexagonal hole partially reinforced cellular beam according to claim 5, characterized in that: The outer side circular arc of the annular reinforcing plate has an arc length of The outer side circular arc has an arc length of In the formula, η is a ratio of the groove depth of the annular reinforcing plate to the radius of the circumscribed circle of the hexagonal hole; r is the radius of the circumscribed circle of the hexagonal hole; and R is the radius of the circle corresponding to the outer side circular arc.

7. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The annular reinforcing plate is made of high-strength steel material.

8. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The thickness of the annular reinforcing plate is greater than or equal to 0.8 times the thickness of the honeycomb beam web.

9. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The annular reinforcing plate and the honeycomb beam web are fixedly connected through welding.

10. A hexagonal hole partially reinforced cellular beam according to claim 1, characterized in that: The annular reinforcing plate has the same curvature as the curvature of the circumscribed circle of the hexagonal orifice.

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