Connecting piece of steel-wood combined hanging structure

Abstract

The utility model discloses a connecting piece of a steel-wood combined hanging structure, and relates to the technical field of steel structure node processes. The connecting piece is used for connecting a steel beam and a wood structure and comprises two vertical hanging plates which are arranged in parallel, the upper ends of the vertical hanging plates are provided with upper sealing plates which fixedly connect the two vertical hanging plates to form a common stress structure, and the outer side walls of the two vertical hanging plates are both provided with side face lug plates which are connected with the vertical hanging plates and the steel beam. The two vertical hanging plates are both provided with lower connecting holes used for being connected with a wood structure. According to the utility model, the construction cost can be greatly reduced, the labor intensity of workers is reduced, the construction progress is accelerated, and the construction quality and safety of a project are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure node technology, in particular to a connecting piece of a steel-wood combined hanging structure. Background Art

[0002] With the continuous advancement of domestic urban infrastructure construction, a large number of novel and beautiful structures continue to emerge, and some have even become one of the landscapes of a city. The steel-wood composite structure is one of the representatives. It is a traditional and novel structural form that continues the traditional architectural style of my country, and the imagination of the designer makes the architectural style unfettered. The steel-wood composite structure has the characteristics of good overall force performance, durability, good landscape effect, strong applicability, and coordinated shape. It is increasingly favored by designers, but compared with the existing composite structure, the steel-wood composite structure has a complex construction process and a high degree of construction technology difficulty.

[0003] With respect to the steel-wood hanging composite structure, the existing technology cannot specifically solve the following problems: 1. How to complete an effective connection with the upper steel beam; 2. How to complete an effective connection with the lower wooden structure; 3. How to ensure the construction convenience of the upper steel beam connection; 4. How to meet the precision requirements of the lower wooden structure connection; 5. How to reduce the impact of the thickness of the steel structure fire retardant coating on the wooden structure; 6. How to effectively control deformation during transportation; 7. How to effectively adjust the error of the upper steel structure so that the wooden structure can be finely installed. Utility Model Content

[0004] The utility model aims at the deficiencies in the background technology and provides a connecting piece of a steel-wood combined hanging structure. The utility model can greatly reduce the construction cost, reduce the labor intensity of workers, speed up the construction progress, and ensure the construction quality and safety of the project.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connecting piece of a steel-wood combined hanging structure, used to connect a steel beam and a wooden structure, comprising two parallel vertical hanging plates, the upper ends of the vertical hanging plates are provided with an upper sealing plate that fixes the two vertical hanging plates to form a common force-bearing structure, the outer side walls of the two vertical hanging plates are provided with side ear plates connecting the vertical hanging plates and the steel beams, and the two vertical hanging plates are provided with lower connecting holes for connecting to the wooden structure.

[0006] By adopting the above technical scheme, a connector is designed to connect the upper steel beam and the lower wooden structure, and the connection node is optimized by deepening the design method of the steel-wood composite structure node process in the early stage, the BIM technology application method and adjusting the node shape of the connector to meet the installation requirements, so as to complete the effective connection of the steel beam and the wooden structure, ensure the construction convenience of the connection between the connector and the upper steel beam, and complete the precision requirements of the connection of the lower wooden structure, effectively avoiding the waste of materials in the construction process; at the same time, since the connector structure of the utility model is simple and reliable, it is easy to manufacture, and when the lower end of the vertical hanging plate is temporarily fixed, the deformation of the connector can be effectively controlled and it is convenient for processing, stacking and transportation, so the simplicity of the connector can be used to realize the simultaneous construction of the working surface, effectively reducing the construction period and speeding up the construction speed; finally, in order to enable the wooden structure to be finely installed even when there is a construction error in the upper roof steel structure, it is necessary to ensure it from multiple aspects such as the deviation control of the lower connection hole of a single connector and the drawing, and the overall straightness deviation control of multiple connectors on the steel beam.

[0007] The utility model is further configured as follows: the side ear plate and the steel beam are connected by welding. In the National Library of Editions Hangzhou Branch project, the curved steel beam roof is used in the main library area 1. Because the spacing between the hanging ear plates set under the curved beam is small and the operating space is small, it is necessary to eliminate the nodes that are inconvenient to operate, such as the nodes that need to be connected by bolts. Finally, the nodes in the form of welding on both sides are used, which is convenient for direct welding, convenient for visualization and convenient for welding.

[0008] The utility model is further configured as follows: the lower connection holes are provided with at least two groups and each group of lower connection holes includes at least two oblong holes. Considering the actual construction situation and foreseeable deviations, the nodes are planned in advance to ensure that the wood structure can be effectively connected, and the lower connection holes on the vertical hanging plates are opened as oblong holes to accommodate the deviations.

[0009] Preferably, the wooden structure is provided with a through hole matching the oblong hole, and the oblong hole and the through hole are fixedly connected by bolts.

[0010] The utility model is further configured that: the surface of the connector is sprayed with paint, and the paint includes a primer, an intermediate paint and a topcoat which are sprayed in sequence. The spraying sequence is to spray the primer first, then the intermediate paint, and finally the topcoat, so that the coating can be gradually built up and the ideal decorative effect and protective performance can be achieved.

[0011] Preferably, the surface of the topcoat is also sprayed with fire retardant coating. The fire retardant coating on the surface of the connector is to improve the fire resistance and fireproof ability of the steel structure. It can effectively prevent the combustion and heat conduction of the steel structure during a fire, delay the spread of the fire, buy precious escape time for personnel evacuation, and protect the structural integrity of the steel structure.

[0012] The utility model is further configured that: a lower sealing plate is detachably connected between the two vertical hanging plates at the lower end of the vertical hanging plates. To ensure the stability of the connecting parts during processing, transportation and stacking, a temporary reinforcement member such as a lower sealing plate can be added between the two vertical hanging plates.

[0013] Preferably, after the wooden structure is installed and connected to the vertical hanging plate, the lower sealing plate is welded and fixed to the vertical hanging plate.

[0014] The utility model is further configured as follows: a plurality of connectors are provided on the steel beam, and the linear deviation of the plurality of connectors does not exceed 3 mm. The overall linear deviation control of the plurality of connectors on the steel beam helps to complete the fine installation of the wooden structure.

[0015] The utility model is further configured as follows: the two side ear plates are provided with upper connecting holes for fitting and fixing the wooden structure on the outer side wall of the vertical hanging plate.

[0016] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0017] 1. Through the in-depth design method of the steel-wood composite structure node process in the early stage, the BIM technology application method and the adjustment of the node shape of the connection parts to meet the installation requirements, the connection nodes are optimized, the accuracy requirements of the lower end wood structure connection are met, and the material waste during the construction process is effectively avoided.

[0018] 2. The connector of the utility model has a simple and reliable structure, is easy to manufacture, can effectively control the deformation of the connector after temporary fixation, and is easy to process, stack and transport, so that the construction work surface can be carried out simultaneously, thereby effectively reducing the construction time and saving construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 It is an axonometric diagram of the overall structure of the utility model;

[0020] Attached Figure 2 It is a three-dimensional disassembled view of the steel-wood combined hanging structure of the utility model;

[0021] The meaning of the numbers in the figure are: 1. Vertical hanging plate; 2. Upper sealing plate; 3. Side ear plate; 4. Lower sealing plate; 5. Lower connecting hole; 6. Upper connecting hole. DETAILED DESCRIPTION

[0022] The following describes the specific implementation of the utility model in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the utility model.

[0023] like Figure 1 , Figure 2 As shown, a connecting piece of a steel-wood composite hanging structure is used to connect the steel beam at the upper end and the wooden structure at the lower end, and it includes a vertical hanging plate 1, an upper sealing plate 2, a side ear plate 3 and a lower connecting hole 5. A connecting piece includes two vertical hanging plates 1 in a rectangular shape, and the rectangular surfaces of the two vertical hanging plates 1 are relatively parallel. One end of the two vertical hanging plates 1 is fixedly connected through the upper sealing plate 2, and welding or other fixed connection methods can be used; two left and right side ear plates 3 are set on the outer side walls of the two vertical hanging plates 1 near one end of the upper sealing plate 2, and the side ear plates 3 are used to fix the upper end of the connecting piece with the steel beam; finally, according to the in-depth design of the node in the early stage of the connecting piece production, the lower connecting hole 5 is set on the two vertical hanging plates 1 to finely install the wooden structure on the connecting piece.

[0024] By deepening the design method of the node process of the steel-wood composite structure in the early stage, applying the BIM technology method and adjusting the node shape of the connector to meet the installation requirements, the connection node is optimized to obtain the connector, completing the effective connection between the steel beam and the wooden structure, ensuring the convenience of the construction of the connection between the connector and the upper steel beam, and completing the accuracy requirements of the connection of the lower wooden structure, effectively avoiding material waste during the construction process; at the same time, since the connector structure of the utility model is simple and reliable, it is easy to manufacture. When the lower end of the vertical hanging plate 1 is temporarily fixed by the lower sealing plate 4, it can effectively control the deformation of the connector and is convenient for processing, stacking and transportation. Therefore, the simplicity of the connector can be used to realize the simultaneous construction of the working surface, effectively reducing the construction period and speeding up the construction speed; finally, in order to complete the fine installation of the wooden structure even when there is a construction error in the upper roof steel structure, it is necessary to ensure it from multiple aspects such as the deviation control of the lower connection hole of a single connector and the drawing, and the overall straightness deviation control of multiple connectors on the steel beam.

[0025] The technical solution of the utility model is obtained to solve the difficulties in the construction of the steel-wood hanging combined structure in the main library area 1 of the Hangzhou branch project of the National Library of Editions, and specifically solves seven problems encountered in the background technology.

[0026] In response to questions 1 and 3, the curved steel beam roof used in the first area of ​​the main hall has a small operating space due to the small spacing between the hanging ear plates set under the curved beam. By comparing various methods such as welding and bolt connection, we finally adopted the node with welding on both sides, which is convenient for visualization and welding. After welding the side ear plate 3 and the steel beam, the effective connection between the connecting parts and the steel beam is completed.

[0027] For question 2, considering the actual construction situation and foreseeable deviations, the nodes are planned in advance to ensure that the wooden structure can be effectively connected, and the lower connection hole 5 on the vertical hanging plate is opened into an oblong hole to accommodate the deviation. Figure 2As shown, in order to meet the requirements of stacked installation of the wooden structure, at least two groups of lower connecting holes 5 are provided and each group of lower connecting holes 5 includes at least two oblong holes, and through holes matching the oblong holes are provided on the wooden structure, so that the connecting piece and the wooden structure are fixedly connected through the oblong holes and the through holes.

[0028] Regarding question 4, the overall machining accuracy control plan requires that the deviation of the connector in the linear and torsional directions should not exceed 3mm.

[0029] For question 5, the surface of the connector is sprayed with paint, which includes primer, intermediate paint and topcoat sprayed in sequence, and fire retardant coating is also sprayed on the surface of the topcoat. In order to reduce the impact of the thickness of paint and fire retardant coating on the installation accuracy of the wood structure, the thickness of the fire retardant coating is first controlled within a range so that the thickness meets the fire resistance time limit requirements while not being too thick. Secondly, a reserved space is set on the wood structure to consider the total thickness of the paint and fire retardant coating in advance.

[0030] For question 6, in order to ensure the stability of the connector during processing, transportation and stacking, a temporary reinforcement member such as a lower sealing plate 4 can be added between the two vertical hanging plates. Specifically, a detachably connected lower sealing plate 4 is set between the two vertical hanging plates 1 at the lower end of the vertical hanging plate 1. After the wooden structure is installed and connected to the vertical hanging plate 1, the lower sealing plate 4 is welded and fixed to the vertical hanging plate 1 to improve the stability of the connector and the steel-wood combined hanging structure.

[0031] For question 7, the influence of the upper roof steel structure error on the fine installation of the wooden structure can be avoided in many ways. First, the overall straightness deviation of multiple connectors on the steel beam should be controlled. The straight direction deviation of multiple connectors on the steel beam should not exceed 3mm; second, the deviation of the lower connection hole of a single connector from the drawing should not exceed 5mm.

[0032] Finally, the wooden structure, as a decorative structure, needs to wrap the connectors, e.g. Figure 2 As shown, upper connecting holes 6 are provided on the two side ear plates 3 to fit and fix the wooden structure to the outer side wall of the vertical hanging plate 1.

[0033] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A connector of a steel-wood composite hanging structure, used to connect a steel beam and a wood structure, characterized in that: The invention comprises two parallel vertical hanging plates (1), wherein the upper ends of the vertical hanging plates (1) are provided with an upper sealing plate (2) for fixing the two vertical hanging plates (1) to form a common force-bearing structure, the outer side walls of the two vertical hanging plates (1) are provided with side ear plates (3) for connecting the vertical hanging plates (1) and the steel beam, and the two vertical hanging plates (1) are provided with lower connecting holes (5) for connecting to a wooden structure.

2. The connecting piece of the steel-wood combined hanging structure according to claim 1 is characterized in that: The side ear plate (3) and the steel beam are connected by welding.

3. The connecting piece of the steel-wood combined hanging structure according to claim 1 is characterized in that: The lower connection holes (5) are provided with at least two groups, and each group of lower connection holes (5) comprises at least two oblong holes.

4. The connecting piece of the steel-wood combined hanging structure according to claim 3 is characterized in that: The wooden structure is provided with a through hole matching the oblong hole, and the oblong hole and the through hole are fixedly connected by bolts.

5. The connecting piece of the steel-wood combined hanging structure according to claim 1 is characterized in that: The surface of the connecting piece is sprayed with paint, and the paint includes a primer, an intermediate paint and a topcoat which are sprayed in sequence.

6. The connecting piece of the steel-wood combined hanging structure according to claim 5 is characterized in that: The surface of the topcoat is also sprayed with fire retardant paint.

7. The connecting piece of the steel-wood combined hanging structure according to claim 1 is characterized in that: A lower sealing plate (4) is detachably connected between the two vertical hanging plates (1) at the lower ends of the vertical hanging plates (1).

8. The connecting piece of the steel-wood combined hanging structure according to claim 7 is characterized in that: After the wooden structure and the vertical hanging plate (1) are installed and connected, the lower sealing plate (4) and the vertical hanging plate (1) are welded and fixed.

9. The connecting piece of the steel-wood combined hanging structure according to claim 1, characterized in that: The steel beam is provided with a plurality of connecting pieces, and the linear direction deviation of the plurality of connecting pieces does not exceed 3 mm.

10. The connecting piece of the steel-wood combined hanging structure according to claim 1, characterized in that: The two side ear plates (3) are provided with upper connection holes (6) for fitting and fixing the wooden structure to the outer side wall of the vertical hanging plate (1).

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