Steel beam and wood beam reinforced connection node and building

Abstract

The steel beam and wood beam reinforced connection joint comprises the wood beam and the steel beam, the end of the wood beam is adjacent to a beam body of the steel beam, and a wood grating of an external building is arranged on the upper surface of the steel beam and the upper surface of the wood beam. The device further comprises an opposite-pull screw rod and a fastening steel hoop. The steel beam adopts an H-shaped steel beam, and an overhanging stiffening rib is arranged on one side, close to the wood beam, of the H-shaped steel beam; a notch is formed in the end face of the end of the wood beam, and the size and the shape of the notch are matched with the size and the shape of the end area of the protruding part end of the outwards-extending stiffening rib; bolt holes are formed in the wood beam and the outwards-extending stiffening ribs, after the outwards-extending stiffening ribs are inserted into the notches, the bolt holes in the stiffening ribs and the bolt holes in the wood beam are aligned, and opposite-pull screws penetrate through the aligned bolt holes; and the fastening steel hoop is hooped on the wood beam. The connecting joint has the characteristics of simple structure, convenience in construction, high mounting speed, high joint strength, easiness in maintenance and replacement, attractive appearance, no building space occupation and capability of ensuring the indoor effect of a building. The fastening steel hoops can reduce the situation that the wood beam is prone to cracking and shear damage in the using process, the bearing capacity of the wood beam is improved, and the service life of the wood beam is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a reinforced connection node between a steel beam and a wooden beam and a building. Background Art

[0002] In modern building structures, wood structures are favored by architects due to their lightweight and artistic quality. Many new single-story and multi-story houses adopt wood structures. Steel-wood composite structures offer the following advantages: high strength and good seismic performance of steel structures, lightweight, environmentally friendly, and easily accessible wood structures, and easy construction and assembly integration of steel-wood composite components. However, wood structures themselves have low strength, are prone to cracking at the ends, and often suffer from shear brittle failure. In steel-wood composite structures, the connection between steel and wood components is a key challenge. Resolving the issues of connection method and strength between wood and steel components can promote the application of steel-wood composite structures in engineering projects. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, a reinforced connection node and a building of steel beams and wooden beams are provided, which improve the bearing capacity and service life of wooden structure beams.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A reinforced connection node between a steel beam and a wood beam, characterized in that: it comprises a wood beam and a steel beam, the end of the wood beam is adjacent to the beam body of the steel beam, and the wood grille of the external building is placed on the upper surface of the steel beam and the wood beam;

[0006] It also includes tension screws and fastening steel hoops; the steel beam adopts an H-shaped steel beam, and an extended stiffening rib is provided on the side of the H-shaped steel beam close to the wooden beam, and the extended stiffening rib extends outward and protrudes from the H-shaped steel beam; a notch is provided on the end face of the wooden beam, and the size and shape of the notch match the end area of ​​the protruding part of the extended stiffening rib; bolt holes are provided on the wooden beam and the extended stiffening rib, and the center line of the bolt hole is perpendicular to the extended stiffening rib. After the extended stiffening rib is inserted into the notch, the bolt holes on the stiffening rib and the wooden beam are aligned, and the tension screws pass through the aligned bolt holes; the fastening steel hoop is sleeved and fixed on the wooden beam, and the fastening steel hoop is located in the area where the notch length is located; when the bolts in the fastening steel hoop are tightened, the fastening steel hoop is clamped on the wooden beam.

[0007] According to the above technical solution, one or more notches are provided on the wooden beam, and the multiple notches are arranged in parallel.

[0008] According to the above technical solution, the notches and the outwardly extending stiffening ribs are arranged vertically, and the axes of the bolt holes on the notches and the outwardly extending stiffening ribs are arranged horizontally.

[0009] According to the above technical solution, one or more groups of matching bolt holes are provided on the wooden beam and the extended stiffening ribs, and the same group of bolt holes are located on the same surface perpendicular to the wooden beam; one or more bolt holes are provided in the same group of bolt holes, and the multiple bolt holes are arranged at intervals on the surface perpendicular to the wooden beam.

[0010] According to the above technical solution, at least two fastening steel hoops are provided, and the fastening steel hoops are sleeved on the wooden beam; the bolts used for tightening in the fastening steel hoops are located on the upper surface of the wooden beam, and a accommodating cavity matching the bolts is provided on the external wooden grille.

[0011] According to the above technical solution, a matching annular groove is provided in the area on the wooden beam for installing the fastening steel hoop. The fastening steel hoop is placed in the annular groove, and the outer wall surface of the fastening steel hoop is flush with the outer wall surface of the wooden beam. The same paint is applied to the outside of the wooden beam and the fastening steel hoop.

[0012] According to the above technical solution, if a group of bolt holes is provided, the bolt holes are located between two adjacent fastening steel hoops;

[0013] If multiple groups of bolt holes are provided, the bolt holes and fastening steel clamps shall be staggered along the length direction of the wooden beam.

[0014] According to the above technical solution, the cross-section of the wooden beam is square, including two protruding stiffening ribs and two fastening steel hoops. A group of bolt holes is provided on the two protruding stiffening ribs and the wooden beam, and a group of bolt holes includes two bolt holes; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt holes; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the protruding stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical sections of the H-shaped steel beam, and the other end of the protruding stiffening rib is placed in the groove of the wooden beam.

[0015] According to the above technical solution, the cross-section of the wooden beam is circular, including an extended stiffening rib and two fastening steel hoops. A group of bolt holes is provided on one extended stiffening rib and the wooden beam, and a group of bolt holes includes a bolt hole; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt hole, and the bolt hole passes through the axis of the wooden beam; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the extended stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical sections of the H-shaped steel beam, and the other end of the extended stiffening rib is placed in the groove of the wooden beam.

[0016] According to the above technical solution, a fire retardant coating is provided on the surface of the wooden beam; and a stiffening rib is provided on the other side of the H-shaped steel beam at the position of the outwardly extending stiffening rib.

[0017] A building characterized by using any of the above-mentioned steel beams and wooden beams to strengthen the connection nodes.

[0018] The utility model has the following beneficial effects:

[0019] A predetermined number of notches are pre-cut into the ends of the timber beams, and bolt holes are drilled into the sides of the beams, with the threaded holes perpendicular to the notches. The steel beam's extended stiffeners are inserted into the notches. High-strength tensioning screws are inserted through the threaded holes in the beam and the extended stiffeners, and then tensioned, securing the extended stiffeners and beam together. Two steel hoops are used to reinforce the timber beam in the notched area, creating a circumferential constraint. Structural adhesive can be used to fill the gap between the steel beam's extended stiffeners and the timber beam's notches to enhance shear resistance.

[0020] Based on these measures, the connection node features a simple structure, easy construction, fast installation, high node strength, ease of repair and replacement, aesthetics, and a minimal footprint, ensuring a consistently high interior quality. Tightening the steel clamps reduces cracking and shear damage in timber beams during use, thereby increasing their load-bearing capacity and service life.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of the embodiment provided by the present invention without the wooden grille (square wooden beam);

[0024] Figure 2 yes Figure 1 Cross-sectional view of AA;

[0025] Figure 3 yes Figure 1 Cross-sectional view of the middle BB;

[0026] Figure 4 This is a schematic diagram of the structure of the embodiment provided by the present invention without the wooden grille (circular wooden beam);

[0027] Figure 5 yes Figure 4 Cross-sectional view of CC;

[0028] Figure 6 yes Figure 4 Cross-sectional view of the middle DD;

[0029] In the figure, 1. Wooden beam; 2. Steel beam; 3. Wooden grille; 4. Tension screw; 5. Fastening steel clamp; 5-1. Bolt; 6. Extending stiffening rib; 7. Notch; 8. Bolt hole; 9. Stiffening rib. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Reference Figures 1 to 6 As shown, the utility model provides a reinforced connection node between steel beams and wooden beams.

[0034] Example 1

[0035] It includes a wooden beam 1 and a steel beam 2, wherein the end of the wooden beam is adjacent to the beam body of the steel beam, and the wooden grille 3 of the external building is placed on the upper surface of the steel beam and the wooden beam;

[0036] It also includes a tension screw 4 and a fastening steel hoop 5; the steel beam adopts an H-shaped steel beam, and an outward-extending stiffening rib 6 is provided on the side of the H-shaped steel beam close to the wooden beam, and the outward-extending stiffening rib extends outward and protrudes from the H-shaped steel beam; a notch 7 is provided on the end face of the wooden beam, and the position and size of the notch are opened according to the actual stress conditions, and the size and shape of the notch match the end area of ​​the protruding part of the outward-extending stiffening rib; bolt holes 8 are provided on both the wooden beam and the outward-extending stiffening rib, and the center line of the bolt hole is perpendicular to the outward-extending stiffening rib. After the outward-extending stiffening rib is inserted into the notch, the bolt holes on the stiffening rib and the wooden beam are aligned, and the tension screw passes through the aligned bolt holes; the fastening steel hoop is sleeved and fixed on the wooden beam, and the fastening steel hoop is located in the area where the notch length is located; when the bolt 5-1 in the fastening steel hoop is tightened, the fastening steel hoop is clamped on the wooden beam.

[0037] In this embodiment, a predetermined number of notches are pre-cut into the ends of the wooden beams, and bolt holes are provided on the sides of the beams, with the threaded holes perpendicular to the notches. The steel beam's extended stiffeners extend into the notches. High-strength tensioning screws are inserted through the threaded holes in the beams and the extended stiffeners, and then tensioned, securing the extended stiffeners and beams together. Two steel clamps are used to reinforce the beams in the notched areas, creating a circumferential constraint. Structural adhesive can be used to fill the gap between the steel beam's extended stiffeners and the beam's notches to enhance shear resistance.

[0038] Based on these measures, the connection node features a simple structure, easy construction, fast installation, high node strength, ease of repair and replacement, aesthetics, and a minimal footprint, ensuring a consistently high interior quality. Tightening the steel clamps reduces cracking and shear damage in timber beams during use, thereby increasing their load-bearing capacity and service life.

[0039] In Example 1, one or more notches are provided on the beam, arranged parallel to each other. The number of notches is determined by the size and shape of the beam. For example, in the figure, two notches are provided in a square beam, and one notch is provided in a circular beam. Preferably, the notches and the overhanging stiffeners are arranged vertically, and the bolt holes in the notches and overhanging stiffeners are arranged horizontally.

[0040] In Example 1, one or more matching sets of bolt holes are provided on the beam and the extended stiffener. Each set of bolt holes is located on the same surface perpendicular to the beam. Within each set of bolt holes, one or more bolt holes are provided, spaced apart on the surface perpendicular to the beam. As shown in the illustrated embodiment, only one set of bolt holes is provided, but two or three sets of bolt holes can also be provided as needed. In a square beam, one set of bolt holes includes two bolt holes; in a circular beam, one set of bolt holes includes one bolt hole. The number of tie rods and bolt holes is determined based on the actual load conditions.

[0041] In Example 1, at least two fastening steel hoops are provided, and the fastening steel hoops are sleeved on the wooden beam; the bolts for tightening in the fastening steel hoops are located on the upper surface of the wooden beam, and a accommodating cavity matching the bolts is provided on the external wooden grille, which does not occupy the net height of the building.

[0042] Preferably, a matching annular groove is provided in the area on the wooden beam for installing the fastening steel hoop, the fastening steel hoop is placed in the annular groove, and the outer wall surface of the fastening steel hoop is flush with the outer wall surface of the wooden beam, and the same paint is applied to the outside of the wooden beam and the fastening steel hoop; thereby improving the aesthetics.

[0043] Among them, if one group of bolt holes is set, the bolt holes are located between two adjacent fastening steel hoops; if multiple groups of bolt holes are set, the bolt holes and the fastening steel hoops are staggered in the length direction of the wooden beam.

[0044] In Example 1, a fire retardant coating is provided on the surface of the wooden beam; and a stiffening rib 9 is provided on the other side of the H-shaped steel beam at the position of the outwardly extending stiffening rib.

[0045] Example 2

[0046] The structure and principle of embodiment 2 are similar to those of embodiment 1, except that: Figures 1 to 3 As shown, the cross-section of the wooden beam is square and includes two protruding stiffening ribs and two fastening steel hoops. A group of bolt holes is provided on the two protruding stiffening ribs and the wooden beam, and a group of bolt holes includes two bolt holes; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt holes; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the protruding stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical section of the H-shaped steel beam, and the other end of the protruding stiffening rib is placed in the groove of the wooden beam.

[0047] Example 3

[0048] The structure and principle of embodiment 3 are similar to those of embodiment 1, except that: Figures 4 to 6 As shown, the cross-section of the wooden beam is circular, including an extended stiffening rib and two fastening steel hoops. A group of bolt holes is provided on one extended stiffening rib and the wooden beam, and a group of bolt holes includes a bolt hole; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt hole, and the bolt hole passes through the axis of the wooden beam; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the extended stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical sections of the H-shaped steel beam, and the other end of the extended stiffening rib is placed in the groove of the wooden beam.

[0049] In Examples 2 to 3, the bolt hole is divided into multiple sections, including a middle section and two hidden sections; the screw end of the tension bolt is located in the middle section, and the screw end head and nut are located in the hidden section, thereby hiding the tension bolt in the wooden beam and improving the aesthetics of the connection node.

[0050] The utility model also provides a building, which adopts any one of the above steel beams and wooden beams to strengthen the connection nodes.

[0051] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. Strengthened connection node between steel beam and wood beam, characterized by: It includes wooden beams and steel beams, the ends of the wooden beams are adjacent to the beam bodies of the steel beams, and the wooden grilles of the external buildings are placed on the upper surfaces of the steel beams and the wooden beams; It also includes tension screws and fastening steel hoops; the steel beam adopts an H-shaped steel beam, and an extended stiffening rib is provided on the side of the H-shaped steel beam close to the wooden beam, and the extended stiffening rib extends outward and protrudes from the H-shaped steel beam; a notch is provided on the end face of the wooden beam, and the size and shape of the notch match the end area of ​​the protruding part of the extended stiffening rib; bolt holes are provided on the wooden beam and the extended stiffening rib, and the center line of the bolt hole is perpendicular to the extended stiffening rib. After the extended stiffening rib is inserted into the notch, the bolt holes on the stiffening rib and the wooden beam are aligned, and the tension screws pass through the aligned bolt holes; the fastening steel hoop is sleeved and fixed on the wooden beam, and the fastening steel hoop is located in the area where the notch length is located; when the bolts in the fastening steel hoop are tightened, the fastening steel hoop is clamped on the wooden beam.

2. The reinforced connection node between steel beam and wood beam according to claim 1, characterized in that: One or more notches are provided on the wooden beam, and the notches are arranged in parallel.

3. The reinforced connection node between steel beam and wood beam according to claim 1, characterized in that: The slots and the outwardly extending stiffening ribs are arranged vertically, and the axes of the bolt holes on the slots and the outwardly extending stiffening ribs are arranged horizontally.

4. The reinforced connection node between steel beam and wood beam according to claim 1, characterized in that: One or more groups of matching bolt holes are provided on the wooden beam and the outward extending stiffening ribs, and the same group of bolt holes is located on the same surface perpendicular to the wooden beam; one or more bolt holes are provided in the same group of bolt holes, and the multiple bolt holes are arranged at intervals on the surface perpendicular to the wooden beam.

5. The reinforced connection node between steel beam and wood beam according to claim 4, characterized in that: At least two fastening steel hoops are provided, and the fastening steel hoops are sleeved on the wooden beam; the bolts for tightening in the fastening steel hoops are located on the upper surface of the wooden beam, and a accommodating cavity matching the bolts is provided on the external wooden grille.

6. The reinforced connection node between steel beam and wood beam according to claim 5, characterized in that: A matching annular groove is provided on the wooden beam in the area where the fastening steel hoop is installed. The fastening steel hoop is placed in the annular groove, and the outer wall surface of the fastening steel hoop is flush with the outer wall surface of the wooden beam. The same paint is applied to the outside of the wooden beam and the fastening steel hoop.

7. The reinforced connection node between steel beam and wood beam according to claim 5, characterized in that: If a group of bolt holes is provided, the bolt holes are located between two adjacent fastening steel hoops; If multiple groups of bolt holes are provided, the bolt holes and fastening steel clamps shall be staggered along the length direction of the wooden beam.

8. The reinforced connection node between steel beam and wood beam according to claim 1, characterized in that: The cross-section of the wooden beam is square, including two protruding stiffening ribs and two fastening steel hoops. A group of bolt holes is provided on the two protruding stiffening ribs and the wooden beam, and a group of bolt holes includes two bolt holes; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt holes; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the protruding stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical sections of the H-shaped steel beam, and the other end of the protruding stiffening rib is placed in the groove of the wooden beam.

9. The reinforced connection node between steel beam and wood beam according to claim 1, characterized in that: The cross-section of the wooden beam is circular, including an extended stiffening rib and two fastening steel hoops. A group of bolt holes is provided on one extended stiffening rib and the wooden beam, and a group of bolt holes includes a bolt hole; the two fastening steel hoops are respectively clamped on the wooden beam and are located on both sides of the bolt hole, and the bolt hole passes through the axis of the wooden beam; the wooden beam and the H-shaped steel beam are arranged vertically, one end of the extended stiffening rib is fixedly connected between the upper and lower horizontal sections and the vertical sections of the H-shaped steel beam, and the other end of the extended stiffening rib is placed in the groove of the wooden beam.

10. A building characterized by: The steel beam and the wooden beam as described in any one of claims 1 to 9 are used to strengthen the connection node.

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