Box-type beam-column combined tie piece

Abstract

The utility model relates to the technical field of box-type beam column installation, in particular to a box-type beam column combined tying piece which comprises a three-way steel pipe, a vertical section of the three-way steel pipe is sleeved on the outer side wall of the upper portion of a box-type column in a matched mode through a vertical pipe cavity, and a box-type beam is installed in a horizontal pipe cavity of a horizontal section of the three-way steel pipe in a matched mode. The inner end of the box-shaped beam abuts against the side wall of the box-shaped column, the horizontal section of the three-way steel pipe is fixedly connected with the box-shaped beam in a bolted mode through a crossed bolt piece, the vertical section of the three-way steel pipe is fixed to the upper portion of the box-shaped column through a main bolt piece, and a bearing accessory is installed on the top of the box-shaped column. The combined tie piece can be suitable for lateral connection and reinforcement of the box beam and the box column under the large-span and large-load working conditions, the three-way steel pipe subjected to high-strength anti-corrosion machining can serve as a main bearing structure, the reliability when the box beam end is connected to the side face of the box column is effectively guaranteed, and the connection stability after installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box-shaped beam-column installation, especially a box-shaped beam-column combined tie member. Background Technique

[0002] The box-shaped beam-column is an important structural form in modern construction projects, with high load-bearing capacity and good stability, and is widely used in long-span bridges and steel structures.

[0003] The connection of the box-shaped beam-column refers to combining prefabricated box-section beams and columns into an integral structure through a certain connection method. In traditional installation construction, methods such as welding, bolt connection, and riveting are generally used, and the specific selection should be determined according to the actual situation of the project and design requirements.

[0004] Through retrieval, it can be found that there are many structural types of beam-column connection members in the prior art. For example, in the patent document with the patent application number CN202323014943.3, a box-shaped beam-column connection node structure is disclosed. From the description of its literature, it can be seen that the above node structure mainly fixes the end of the box-shaped beam located on one side of the box-shaped column and perpendicular to it through a column connection plate, a column connection member, a beam connection plate, and a positioning connection plate.

[0005] From the above beam-column connection method, it can be seen that this beam-column connection structure solely relies on bolt connection on the opposite sides to fix the beam end on the vertical surface of the box-shaped column, and the bearing capacity mainly depends on the multi-point bearing of each bolt; this connection method can play a certain bearing role for low-load connections, but it is not applicable to the beam-column connection conditions of large loads and large spans. The main reasons are as follows:

[0006] First, in the working conditions of large spans and large loads, it is usually set for outdoor use. When dealing with variable wind loads, the bolt connection on one side is prone to bolt follow vibration, resulting in a large potential for loosening at the connection part and weak anti-load capacity during single-sided connection.

[0007] Second, there is no support at the bottom of both ends of the single-sided connection. When bearing large loads for a long time, it is prone to fatigue limit, affecting the service life of the entire structure; when wind-induced vibration occurs, it will accelerate and intensify the vibration frequency and load of the connection part, thus further reducing the use effect.

[0008] In summary, it can be seen that the above connection method of connecting the beam end to the side of the box-shaped column has certain deficiencies when used in the working conditions of large spans and large loads. Therefore, the utility model has carried out an optimized design for the problems existing in the prior art and proposed a box-shaped beam-column combined tie member to better solve the problems existing in the prior art. Content of the Utility Model

[0009] To solve one of the above technical problems, the technical solution adopted by the present utility model is: a box-shaped beam-column combined tie member, including a tee-shaped steel pipe. The vertical section of the tee-shaped steel pipe is sleeved on the outer side wall of the upper part of the box-shaped column through a vertical pipe cavity. A box-shaped beam is installed in the horizontal pipe cavity of the horizontal section of the tee-shaped steel pipe. The inner end of the box-shaped beam abuts against the side wall of the box-shaped column. The horizontal section of the tee-shaped steel pipe and the box-shaped beam are bolted and fixedly connected through a cross bolt member. The vertical section of the tee-shaped steel pipe is fixed on the upper part of the box-shaped column through a main bolt member. A supporting accessory is installed on the top of the box-shaped column. The top of the supporting accessory abuts against the top of the box-shaped column. Both sides of the lower part of the supporting accessory are fixed on both sides of the vertical section of the tee-shaped steel pipe.

[0010] In any of the above solutions, preferably, the cross bolt member includes a horizontally arranged first connecting bolt. The first connecting bolt passes through the tee-shaped steel pipe and the box-shaped beam along the horizontal section of the tee-shaped steel pipe. A first locking nut is screwed on the first connecting bolt outside the horizontal section of the tee-shaped steel pipe. The inner end face of the first locking nut abuts against the outer side wall of the horizontal section of the tee-shaped steel pipe. Second connecting bolts are respectively arranged at intervals on both sides of the first connecting bolt. Each second connecting bolt is vertically arranged and both ends pass through the tee-shaped steel pipe and the box-shaped beam. A second locking nut is screwed on the outer side wall of the first connecting bolt at the bottom of the horizontal section of the tee-shaped steel pipe. The top of the second locking nut abuts against the bottom of the horizontal section of the tee-shaped steel pipe.

[0011] In any of the above solutions, preferably, reinforcing rib plates are respectively arranged on the front and back sides of the cross bolt member above and below the horizontal section of the tee-shaped steel pipe. Each reinforcing rib plate is fixedly welded on the tee-shaped steel pipe.

[0012] In any of the above solutions, preferably, the main bolt member includes main connecting bolts arranged at intervals from top to bottom. Each main connecting bolt passes through the tee-shaped steel pipe and the box-shaped beam along the front and back directions of the vertical section of the tee-shaped steel pipe. A main locking nut is screwed on the outer side wall of the main connecting bolt outside the tee-shaped steel pipe.

[0013] In any of the above solutions, preferably, the supporting accessory includes an inverted U-shaped steel seat arranged vertically. The inverted U-shaped steel seat is sleeved on the outer side wall of the upper part of the box-shaped column. The bottom of the horizontal section of the inverted U-shaped steel seat abuts against the top of the box-shaped column. The two vertical sections of the inverted U-shaped steel seat respectively abut against the outer side walls of the vertical sections of the tee-shaped steel pipe. The inner end face of the main locking nut abuts against the outer side wall of the vertical section of the inverted U-shaped steel seat.

[0014] Preferably, in any of the above solutions, the two second connecting bolts are symmetrically arranged with respect to the vertical plane where the center line of the first connecting bolt is located.

[0015] Preferably, in any of the above solutions, each of the main locking nuts, the first locking nut, and each of the second locking nuts are all anti-loosening nuts.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. This combined tie member can be applied to the lateral connection and reinforcement of box girders and box columns under large-span and large-load conditions. It can rely on the tee steel pipe processed with high-strength anti-corrosion as the main supporting structure, effectively ensuring the reliability of the connection between the end of the box girder and the side of the box column, and improving the connection stability after installation.

[0018] 2. In the present utility model, when connecting beams and columns, the method of relying solely on multi-point or single-point bolt connections is avoided. Instead, it effectively uses the cladding connection method to cooperate with bolts in multiple directions for fastening, effectively reducing the potential safety hazards of bolt connection points caused by simply relying on bolt connections under vibration conditions. The load at the vibration part of the beam and column is dispersed in a surrounding manner by the tee steel pipe, and the effective circumferential constraint can reduce the adverse effects brought by the vibration amplitude.

[0019] 3. Considering the support effect of the entire structure, a supporting accessory is added here, so that it can cooperate with the main bolt member to better ensure the vertical bearing capacity, and effectively improve the stability of the support of the entire structure under large-load conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0021] Figure 1 It is a schematic structural diagram of the present utility model in the installed state.

[0022] Figure 2 It is a schematic internal sectional structural diagram of the present utility model in the installed state.

[0023] Figure 3 It is a schematic internal sectional structural diagram of the tee steel pipe of the present utility model in a three-dimensional state.

[0024] Figure 4 It is a schematic side view structural diagram of the present utility model.

[0025] Figure 5 This is the three-dimensional structure diagram of the present utility model.

[0026] Figure 6 This is the three-dimensional structure diagram of the three-way steel pipe of the present utility model.

[0027] In the figure, 1 is the three-way steel pipe; 101 is the vertical pipe cavity; 102 is the horizontal pipe cavity; 2 is the box column; 3 is the box beam; 4 is the first connecting bolt; 5 is the first locking nut; 6 is the second connecting bolt; 7 is the second locking nut; 8 is the reinforcing rib plate; 9 is the main connecting bolt; 10 is the main locking nut; 11 is the inverted U-shaped steel seat. Specific embodiments

[0028] Next, embodiments of the technical solution of the present utility model will be described in detail with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model. The specific structure of the present utility model is as Figures 1 - 6 shown in the figure.

[0029] Embodiment 1: The box column-beam combined tie member includes a three-way steel pipe 1. The vertical section of the three-way steel pipe 1 is sleeved on the outer side wall of the upper part of the box column 2 through the vertical pipe cavity 101. A box beam 3 is installed in the horizontal pipe cavity 102 of the horizontal section of the three-way steel pipe 1. The inner end of the box beam 3 abuts against the side wall of the box column 2. The horizontal section of the three-way steel pipe 1 and the box beam 3 are bolted and fixedly connected through a cross bolt member. The vertical section of the three-way steel pipe 1 is fixed on the upper part of the box column 2 through a main bolt member. A supporting accessory is installed on the top of the box column 2. The top of the supporting accessory abuts against the top of the box column 2. Both sides of the lower part of the supporting accessory are fixed on both sides of the vertical section of the three-way steel pipe 1. It should be noted that the box column-beam combined tie member of the present utility model relies on the three-way steel pipe 1 to cover the outer side wall of the upper part of the box column 2, and at the same time relies on the main bolt member to achieve tight fixing and positioning, which can effectively ensure the covering constraint of the whole structure, realize the circumferential limit constraint, and reduce the influence brought by the circumferential vibration.

[0030] Preferably, in any of the above solutions, the cross-bolt member includes a first connecting bolt 4 horizontally arranged, the first connecting bolt 4 penetrates through the three-way steel pipe 1 and the box girder 3 along the horizontal section of the three-way steel pipe 1. A first locking nut 5 is screwed onto the first connecting bolt 4 outside the horizontal section of the three-way steel pipe 1, and the inner end face of the first locking nut 5 abuts against the outer side wall of the horizontal section of the three-way steel pipe 1. Second connecting bolts 6 are respectively arranged at intervals on both sides of the first connecting bolt 4. Each of the second connecting bolts 6 is vertically arranged and penetrates through the three-way steel pipe 1 and the box girder 3 at both ends. A second locking nut 7 is screwed onto the outer side wall of the first connecting bolt 4 at the bottom of the horizontal section of the three-way steel pipe 1, and the top of the second locking nut 7 abuts against the bottom of the horizontal section of the three-way steel pipe 1.

[0031] As the main structure connecting the three-way steel pipe 1 and the box girder 3, the cross-bolt member forms a multi-bolt structure by cooperating the central first connecting bolt 4 with the second connecting bolts 6 perpendicular to its both sides, effectively forming a three-dimensional connection state and ensuring the stability of the connection.

[0032] Preferably, in any of the above solutions, reinforcing rib plates 8 are respectively arranged on the front and rear sides of the cross-bolt member above and below the horizontal section of the three-way steel pipe 1, and each of the reinforcing rib plates 8 is fixedly welded to the three-way steel pipe 1.

[0033] Each of the reinforcing rib plates 8 installed on the horizontal section of the three-way steel pipe 1 is mainly used to further enhance the structural strength of the entire three-way steel pipe 1, effectively ensuring the large-load bearing capacity of the entire three-way steel pipe 1.

[0034] Preferably, in any of the above solutions, the main bolt member includes main connecting bolts 9 arranged at intervals from top to bottom. Each of the main connecting bolts 9 penetrates through the three-way steel pipe 1 and the box girder 3 along the front and rear directions of the vertical section of the three-way steel pipe 1. A main locking nut 10 is screwed onto the outer side wall of the main connecting bolt 9 outside the three-way steel pipe 1.

[0035] As the main structure connecting the vertical section of the three-way steel pipe 1 and the box column 2, the main bolt member adopting the high-strength main connecting bolts 9 arranged at intervals up and down can effectively ensure the effective positioning of the vertical section of the entire three-way steel pipe 1 and improve the firmness of the positioning of the three-way steel pipe 1 on the vertical section.

[0036] Embodiment 2: Compared with Embodiment 1, the difference in this embodiment lies in the following technical features:

[0037] Preferably, in any of the above solutions, the supporting accessory includes an inverted U-shaped steel seat 11 arranged vertically. The inverted U-shaped steel seat 11 is sleeved on the outer side wall of the upper part of the box column 2. The bottom of the horizontal section of the inverted U-shaped steel seat 11 abuts against the top of the box column 2. The two vertical sections of the inverted U-shaped steel seat 11 respectively abut against the outer side walls of the vertical sections of the three-way steel pipe 1. The inner end surface of the main locking nut 10 abuts against the outer side wall of the vertical section of the inverted U-shaped steel seat 11.

[0038] The added supporting accessory in this embodiment can rely on the inverted U-shaped steel seat 11 to support on the top of the box column 2, so as to play a certain auxiliary supporting role for the three-way steel pipe 1 connected thereto, effectively improving the supporting strength of the three-way steel pipe 1 and ensuring the supporting positioning effect.

[0039] Preferably, in any of the above solutions, the two second connecting bolts 6 are symmetrically arranged with respect to the vertical plane where the center line of the first connecting bolt 4 is located.

[0040] The symmetrically spaced arrangement of the second connecting bolts 6 on both sides can ensure the balance of the force applied when installing the horizontal section of the three-way steel pipe 1 and the box girder 3, and ensure the relative balance of the positioning effect and the force application points.

[0041] Preferably, in any of the above solutions, each of the main locking nuts 10, the first locking nuts 5, and each of the second locking nuts 7 are anti-loosening nuts.

[0042] Each nut adopting an anti-loosening structure can effectively ensure the relative stability of the connection part in case of vibration. In addition, in order to further ensure the anti-vibration effect of the connection points, spot welding is used at the connection parts of each anti-loosening nut for further positioning.

[0043] Specific working principle: This box-shaped beam-column combined tie relies on the three-way steel pipe 1 to cover the outer side wall of the upper part of the box column 2, and at the same time relies on the main bolt parts to achieve tight fixing and positioning, which can effectively ensure the covering constraint of the whole structure, realize the circumferential limit constraint, and reduce the influence brought by the circumferential vibration.

[0044] After the whole three-way steel pipe 1 is positioned, it can provide an installation space for the installation of the end part of the subsequent box girder 3, effectively ensuring the stability of the whole structure after the end part is installed in place. In this utility model, the three-way steel pipe 1 made of an alloy material with a large wall thickness and high strength is used as the main load-bearing structure, effectively enhancing the strength and stability of the connection part.

[0045] In addition, relying on the further load-bearing effect of the supporting accessory can effectively strengthen the connection strength of the whole three-way steel pipe 1.

[0046] In summary, it can be seen that this combined tie member can be applied to the lateral connection and reinforcement of the box girder 3 and the box column 2 under the conditions of large span and large load. It can rely on the tee steel pipe 1 processed with high-strength anti-corrosion as the main supporting structure, effectively ensuring the reliability of the connection between the end of the box girder 3 and the side of the box column 2, and improving the connection stability after installation; when connecting the beam and column, it avoids the single way of relying on multi-point or single-point bolt connections, effectively uses the wrapping connection method to cooperate with bolts in multiple directions for fastening, effectively reducing the potential safety hazards of the bolt connection points caused by simply relying on bolt connections under the vibration state, and dispersing the load of the vibrating part of the beam and column in a surrounding manner through the tee steel pipe 1. The effective circumferential constraint can reduce the adverse effects brought by the vibration amplitude.

[0047] Considering the support effect of the entire structure, a supporting accessory is also added here, so that its cooperation with the main bolt member can better ensure the vertical bearing capacity, effectively improving the stability of the support of the entire structure under the condition of large load.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; for those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present invention falls within the protection scope of the present invention.

[0049] Those not elaborated in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. The box-type beam-column combined anchor is characterized by: It comprises a three-way steel pipe, the vertical section of which is sleeved on the upper outer wall of the box column through a vertical tube cavity, a box beam is installed in the horizontal tube cavity of the horizontal section of the three-way steel pipe, the inner end of the box beam abuts on the side wall of the box column, the horizontal section of the three-way steel pipe and the box beam are bolted and fixedly connected by cross bolts, the vertical section of the three-way steel pipe is fixed to the upper part of the box column through main bolts, a supporting accessory is installed on the top of the box column, the top of the supporting accessory abuts on the top of the box column, and both sides of the lower part of the supporting accessory are fixed to both sides of the vertical section of the three-way steel pipe.

2. The box-type beam-column combined anchor according to claim 1, characterized in that: The cross bolt member includes a first connecting bolt arranged horizontally, and the first connecting bolt is arranged along the horizontal section of the three-way steel pipe and penetrates the three-way steel pipe and the box beam. A first locking nut is threadedly screwed on the first connecting bolt outside the horizontal section of the three-way steel pipe, and the inner end surface of the first locking nut abuts against the outer side wall of the horizontal section of the three-way steel pipe. Second connecting bolts are respectively arranged at intervals on both sides of the first connecting bolt, and each of the second connecting bolts is vertically arranged and both ends of the second connecting bolts penetrate the three-way steel pipe and the box beam. A second locking nut is threadedly screwed on the outer side wall of the first connecting bolt at the bottom of the horizontal section of the three-way steel pipe, and the top of the second locking nut abuts against the bottom of the horizontal section of the three-way steel pipe.

3. The box-type beam-column combined anchor according to claim 2, characterized in that: Reinforcement ribs are respectively arranged on the front and rear sides of the cross bolt members above and below the horizontal section of the three-way steel pipe, and each of the reinforcement ribs is respectively fixedly welded to the three-way steel pipe.

4. The box-type beam-column combined anchor according to claim 3, characterized in that: The main bolt assembly includes main connecting bolts spaced apart from top to bottom, each of the main connecting bolts respectively passes through the three-way steel pipe and the box beam along the front-to-back direction of the vertical section of the three-way steel pipe, and a main locking nut is threadedly screwed on the outer wall of the main connecting bolt on the outer side of the three-way steel pipe.

5. The box-type beam-column combined anchor according to claim 4, characterized in that: The supporting accessory includes a vertically arranged inverted U-shaped steel seat, which is sleeved on the upper outer wall of the box-type column, the bottom of the horizontal section of the inverted U-shaped steel seat abuts against the top of the box-type column, and the two vertical sections of the inverted U-shaped steel seat respectively abut against the outer wall of the vertical section of the three-way steel pipe, and the inner end face of the main locking nut abuts against the outer wall of the vertical section of the inverted U-shaped steel seat.

6. The box-type beam-column combined anchor according to claim 5, characterized in that: The two second connecting bolts are symmetrically arranged with respect to the vertical plane where the center line of the first connecting bolt is located.

7. The box-type beam-column combined anchor according to claim 6, characterized in that: Each of the main locking nuts, the first locking nuts and the second locking nuts are anti-dropping nuts.

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