Steel structure unit room connection system based on wedge blocks and integral connecting plates

Abstract

The steel structure unit room connection system based on wedge blocks and integral connecting plates includes a connecting plate, an upper column corner bracket base plate, a lower column corner bracket top plate, wedge blocks, long bolts, and nuts. Shear keys are provided on the upper and lower surfaces of the connecting plate. The wedge blocks are positioned between the upper column corner bracket base plate and the shear keys on the connecting plate, and between the lower column corner bracket top plate and the shear keys on the connecting plate. The connecting plate has an elongated hole, and the wedge blocks have vertical through holes. The long bolts pass through the upper and lower wedge blocks and the intermediate connecting plate, and then, through the nuts, connect the upper column corner bracket base plate and the lower column corner bracket top plate, thus connecting the upper and lower column corner brackets into a whole. The connecting plate connects the vertical corner brackets horizontally to form a whole. This invention has advantages such as clear force transmission, good integrity, convenient installation, and adjustable construction errors.

Description

Technical Field

[0001] This invention relates to the field of building technology, and specifically to a steel structure unit room connection system based on wedge blocks and integral connecting plates. Background Technology

[0002] Against the backdrop of my country's vigorous promotion and development of prefabricated buildings, modular steel structure unit houses have gradually been applied nationwide. This type of structure belongs to the high-end product of prefabricated buildings, raising the level of building industrialization to a new height and possessing enormous development potential. The main units of steel structure unit houses are all manufactured in factories, including the structure, architecture, plumbing and electrical systems, and basic finishing. On-site assembly only requires simple assembly to form the structure. The efficiency and quality of on-site assembly play a crucial role in construction speed and structural safety.

[0003] In this type of structure, the most crucial aspect of on-site assembly is the construction of the connection system. Existing assembly connection systems suffer from problems such as complex node structures, installation difficulties due to construction errors, high precision requirements, and poor overall load-bearing capacity of the nodes. To improve assembly construction efficiency and further advance the development of steel structure unit buildings, it is necessary to develop a connection system that features clear force transmission, good integrity, convenient installation, meets the requirements of prefabricated construction, and allows for adjustment of construction errors. Summary of the Invention

[0004] The technical problem to be solved by this invention is to propose a steel structure unit house connection system based on wedge blocks and integral connecting plates, which has clear force transmission, good integrity, convenient installation, meets the requirements of prefabricated construction, and can adjust construction errors.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A steel structure unit room connection system based on wedge blocks and an integral connecting plate includes a connecting plate, an upper column corner bracket base plate, a lower column corner bracket top plate, wedge blocks, long bolts, and nuts. Shear keys are provided on the upper and lower surfaces of the connecting plate. The wedge blocks are positioned between the upper column corner bracket base plate and the shear keys on the connecting plate, and between the lower column corner bracket top plate and the shear keys on the connecting plate. The connecting plate has an elongated hole, and the wedge blocks have vertical through holes. The long bolts pass through the upper and lower wedge blocks and the intermediate connecting plate, and then connect the upper column corner bracket base plate and the lower column corner bracket top plate with nuts, thereby connecting the upper and lower column corner brackets into a whole. The connecting plate also connects the vertical corner brackets horizontally to form a whole.

[0007] Furthermore, each set of upper and lower column corner pieces is equipped with four sets of wedge blocks, two sets of wedge blocks are horizontally arranged, and two sets of wedge blocks are horizontally arranged vertically; each set of wedge blocks contains two upper and two lower wedge blocks, which are connected by long bolts and nuts.

[0008] Furthermore, the two sets of horizontally arranged wedges have wedge surfaces parallel to the horizontal cross-section of the shear key, and the two sets of horizontally arranged wedges have wedge surfaces parallel to the horizontal longitudinal section of the shear key.

[0009] Furthermore, the elongated holes are located around the shear key, including two horizontal elongated holes and two vertical elongated holes.

[0010] Furthermore, washers are provided between the bolt head and the wedge block of the long bolt, as well as between the nut and the wedge block.

[0011] Furthermore, the shear key is welded to the upper and lower surfaces of the connecting plate, or the shear key and the connecting plate are integrally cast structures.

[0012] Furthermore, the connecting plate and wedge block are both prefabricated in the factory.

[0013] Furthermore, the system can be applied to corner column nodes, side column nodes, and center column nodes of steel structure unit rooms; when applied to different types of nodes, the shape of the connecting plate needs to be adjusted accordingly.

[0014] Technical principle of the invention:

[0015] This invention employs a combination of wedge blocks, connecting plates, and long bolts to achieve vertical and horizontal shear-resistant connections between upper and lower unit rooms. Simultaneously, the connecting plate enables horizontal connections between different unit rooms, improving the overall integrity of the node connections. The wedge blocks provide adjustment functionality to accommodate construction errors in the installation of upper and lower unit rooms, ensuring rapid assembly and connection via long bolts. After the bolts are tightened, the interaction of the wedge blocks, connecting keys, and the top and bottom plates of the corner fittings helps the node resist horizontal shear forces. The longitudinal and transverse elongated holes on the connecting plate allow for adjustment of construction errors in the horizontal longitudinal and horizontal transverse directions, ensuring convenient installation of long bolts while simultaneously guaranteeing the shear resistance of the node in both the horizontal transverse and longitudinal directions.

[0016] This invention can realize the compressive, tensile and horizontal shear resistance functions of the connection nodes of steel structure unit rooms, and has the following advantages: clear force transmission, good integrity, convenient installation, meeting the requirements of prefabricated construction, and adjustable construction error. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the side column connection node according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Top view of the connecting nodes shown;

[0019] Figure 3 for Figure 1 A cross-sectional view of the connecting node shown;

[0020] Figure 4 for Figure 1 A three-dimensional schematic diagram of the connecting plate and shear key of the connection node shown;

[0021] Figure 5 for Figure 1 Top view of the connecting plate and shear key of the connection node shown;

[0022] Figure 6 for Figure 1 A three-dimensional schematic diagram of the wedge-shaped block connecting the nodes shown;

[0023] Figure 7 for Figure 1 The diagram shows the construction schematic for the opening of the corner fitting at the connection node;

[0024] Figure 8 This is a three-dimensional structural diagram of the corner column connection node of the present invention;

[0025] Figure 9 This is a three-dimensional structural diagram of the column connection node in this invention;

[0026] In the diagram: 1. Connecting plate, 2. Shear key, 3. Upper column corner bracket base plate, 4. Lower column corner bracket top plate, 5. Wedge block, 6. Long bolt, 7. Washer, 8. Corner bracket side plate, 9. Nut, 10. Long oval hole, 11. Vertical through round hole, 12. Corner bracket construction hole. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0028] Reference Figures 1-6 A steel structure unit room connection system based on wedge blocks and an integral connecting plate includes a connecting plate 1, an upper column corner bracket base plate 3, a lower column corner bracket top plate 4, wedge blocks 5, long bolts 6, and nuts 9. The connecting plate 1 has shear keys 2 on its upper and lower surfaces respectively. The wedge blocks 5 are positioned between the upper column corner bracket base plate 3 and the shear keys 2 on the connecting plate, and between the lower column corner bracket top plate 4 and the shear keys 2 on the connecting plate. The connecting plate 1 has an elongated hole 10, and the wedge blocks 5 have a vertical through hole 11. The long bolts 6 pass through the upper and lower wedge blocks 5 and the intermediate connecting plate 1, and then connect the upper column corner bracket base plate 3 and the lower column corner bracket top plate 4 via nuts 9, thereby connecting the upper and lower column corner brackets into a whole. The connecting plate 1 connects the vertical corner brackets horizontally to form a whole.

[0029] In this embodiment, each set of upper and lower column corner pieces is provided with four sets of wedge blocks 5, of which two sets of wedge blocks are arranged horizontally and two sets of wedge blocks are arranged vertically. Each set of wedge blocks 5 includes two upper and two lower wedge blocks 5, which are connected by long bolts 6 and nuts 9.

[0030] In this embodiment, the two sets of horizontally arranged wedge blocks 5 have wedge surfaces parallel to the horizontal cross-section of the shear key 2, and the two sets of horizontally arranged wedge blocks 5 have wedge surfaces parallel to the horizontal longitudinal section of the shear key 2.

[0031] In this embodiment, the elongated holes 10 are located around the shear key 2, including two horizontal elongated holes 10 and two vertical elongated holes 10.

[0032] In this embodiment, washers 7 are provided between the bolt head of the long bolt 6 and the wedge block 5, as well as between the nut 9 and the wedge block 5.

[0033] In this embodiment, the shear key 2 is welded to the upper and lower surfaces of the connecting plate 1. Of course, it can also be an integral cast structure, etc.

[0034] In this embodiment, the connecting plate 1 and the wedge block 5 are both prefabricated in the factory.

[0035] During on-site construction, refer to Figure 1 and Figure 7 After the lower unit is hoisted and installed, the prefabricated connecting plate 1 with shear key 2 and elongated hole 10 is placed on the top plate 4 of the lower column corner fitting and aligned with the corresponding axis. Then, the upper unit is hoisted, and the bottom plate 3 of the upper column corner fitting is aligned with the corresponding axis of the connecting plate 1. Corner fitting construction holes 12 are provided on the corner fitting. After inserting a set of wedge blocks 5 and washers 7 into the long bolt 6, the long bolt 6 is inserted into the node through the construction hole 12 of the upper column corner fitting and passes through the elongated hole 10 on the connecting plate 1. The wedge blocks 5 are located between the shear key 2 and the bottom plate 3 of the upper column corner fitting. Then, another set of wedge blocks 5 and washers 7 are inserted into the long bolt 6 through the construction hole 12 of the lower column corner fitting. The wedge blocks 5 are located between the shear key 2 and the top plate 4 of the lower column corner fitting. At the same time, nuts 9 are installed and finally tightened with a special wrench. After one set of construction is completed, the next set is constructed. The construction sequence should be from the inside to the outside to avoid mutual interference during construction.

[0036] The connecting plate 1 allows the vertical corner pieces to be connected horizontally to form a whole, improving the overall integrity of the node connection. The wedge block 5 provides a certain degree of adjustment in case of construction errors during the installation of the upper and lower unit rooms, ensuring that the upper and lower unit rooms can be quickly assembled and connected via the long bolts 6. The longitudinal and transverse elongated holes 10 on the connecting plate 1 can adjust for construction errors in the horizontal longitudinal and horizontal transverse directions, respectively, ensuring the convenience of installing the long bolts 6, while also ensuring the shear resistance of the node in the horizontal transverse and horizontal longitudinal directions, respectively.

[0037] The system described in this invention can be used for corner column nodes, edge column nodes, and center column nodes in steel structure unit rooms. The corresponding node diagram in this embodiment shows an edge column node. When applied to corner column nodes, as shown... Figure 8 As shown, when applied to the central column node, as Figure 9 As shown. When applied to different types of nodes, the shape of the connecting plate 1 needs to be adjusted accordingly.

[0038] This invention can realize the compressive, tensile and horizontal shear resistance functions of the connection nodes of steel structure unit rooms, and has the following advantages: clear force transmission, good integrity, convenient installation, meeting the requirements of prefabricated construction, and adjustable construction error.

[0039] Although preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these are within the scope of protection of the present invention.

Claims

1. A steel structure unit room connection system based on wedge blocks and integral connecting plates, characterized in that: The assembly includes a connecting plate, an upper column corner bracket base plate, a lower column corner bracket top plate, wedge blocks, long bolts, and nuts. Shear keys are provided on the upper and lower surfaces of the connecting plate. The wedge blocks are positioned between the shear keys on the upper column corner bracket base plate and the connecting plate, and between the shear keys on the lower column corner bracket top plate and the connecting plate. The connecting plate has an elongated hole, and the wedge blocks have vertical through holes. The long bolts pass through the upper and lower wedge blocks and the intermediate connecting plate, and are then connected to the upper column corner bracket base plate and the lower column corner bracket top plate by the nuts, thus connecting the upper and lower column corner brackets into a whole. The connecting plate connects all... The vertical corner pieces are connected horizontally to form a whole; each set of upper and lower column corner pieces has four sets of wedge blocks, two sets of wedge blocks are horizontally arranged horizontally, and two sets of wedge blocks are horizontally arranged vertically. Each set of wedge blocks includes two upper and two lower wedge blocks, which are connected by long bolts and nuts; the elongated holes are located around the shear key, including two horizontal elongated holes and two vertical elongated holes; the wedge surfaces of the two sets of horizontally arranged wedge blocks are parallel to the horizontal cross-section of the shear key, and the wedge surfaces of the two sets of horizontally arranged wedge blocks are parallel to the horizontal longitudinal section of the shear key.

2. The steel structure unit room connection system based on wedge blocks and integral connecting plates according to claim 1, characterized in that: Washers are provided between the bolt head and the wedge block of the long bolt, as well as between the nut and the wedge block.

3. The steel structure unit room connection system based on wedge blocks and integral connecting plates according to claim 1 or 2, characterized in that: The shear key is welded to the upper and lower surfaces of the connecting plate, or the shear key and the connecting plate are integrally cast structures.

4. The steel structure unit room connection system based on wedge blocks and integral connecting plates according to claim 1 or 2, characterized in that: The connecting plate and wedge block are both prefabricated in the factory.

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