A frame structure and construction method of assembled building

Abstract

The present invention relates to a frame structure and construction method of an assembled building, wherein the structure comprises a base, a lower column arranged on the base, a connector arranged on the lower column, and an upper column, a crossbeam and a longitudinal beam arranged on the connector; the connector comprises an upper column connector, a lower column connector connected to the lower end of the upper column connector, and a beam connector arranged between the upper column connector and the lower column connector; an upper slot is provided at the upper end of the upper column connector, an upper plug matched therewith is provided at the lower end of the upper column, and the upper column connector and the upper plug are fixedly connected by fasteners; a lower slot is provided at the lower end of the lower column connector, a lower plug matched therewith is provided at the upper end of the lower column, and the lower column connector and the lower plug are fixedly connected by fasteners. The present invention realizes multiple transmission and dissipation of vibration energy, improves the seismic performance of the structure, and enhances the safety of the structure.

Description

Technical Field

[0001] The invention relates to an assembled building, in particular to a frame structure and a construction method of an assembled building. Background Art

[0002] With the rapid development of modern construction technology, prefabricated buildings, as a new type of construction method, are gradually becoming an important development trend in the construction field due to their advantages such as high efficiency, environmental protection and sustainability. Prefabricated buildings produce various components in the factory in advance, such as walls, floor slabs, beams and columns, and then assemble them on the construction site, which greatly shortens the construction period, reduces labor demand, and also reduces waste emissions during the construction process, which is in line with the concept of green buildings.

[0003] However, prefabricated buildings still face some challenges in practical applications. Traditional prefabricated building connections often use welding or bolting. Although these connection methods can meet the basic structural strength requirements, the welding construction operation is complicated and there are certain deficiencies in seismic performance. Especially in earthquake-prone areas, traditional connection methods may not be able to effectively absorb and disperse seismic energy, resulting in the structure being easily damaged under earthquake action. Summary of the invention

[0004] The purpose of the present invention is to provide a frame structure and construction method of an assembled building to solve the problems of complex construction operation and poor seismic performance of traditional equipment.

[0005] The present invention is implemented as follows: a frame structure of an assembled building, which structure includes a base, a lower column arranged on the base, a connector arranged on the lower column, and an upper column, a crossbeam and a longitudinal beam arranged on the connector; the connector includes an upper column connecting piece, a lower column connecting piece connected to the lower end of the upper column connecting piece, and a beam connecting piece arranged between the upper column connecting piece and the lower column connecting piece; an upper slot is provided at the upper end of the upper column connecting piece, an upper plug matching therewith is provided at the lower end of the upper column, and the upper column connecting piece and the upper plug are fixedly connected by fasteners; a lower slot is provided at the lower end of the lower column connecting piece, a lower plug matching therewith is provided at the upper end of the lower column, and the lower column connecting piece and the lower plug are fixedly connected by fasteners.

[0006] Furthermore, a connecting block is provided at the lower end of the lower column, and the connecting block includes a connecting base plate provided at the lower end of the lower column, a plug-in column provided at the lower end of the connecting base plate, and a connecting plate provided on the outer side of the connecting base plate, and a gasket is provided between the base and the connecting block; a lower groove cooperating with the plug-in column is provided on the base, and the connecting plate, the gasket and the base are fixedly connected by fasteners.

[0007] Furthermore, shock-absorbing pads are provided between the upper column connecting member and the beam connecting member, and between the lower column connecting member and the beam connecting member.

[0008] Furthermore, the beam connecting member includes a central supporting portion and four arms of equal length, and the angle between two adjacent arms is 90°.

[0009] Furthermore, a downward sleeve is provided at the lower end of the upper column connecting piece, and a connecting head matching therewith is provided at the upper end of the lower column connecting piece, and the sleeve and the connecting head are fixedly connected by fasteners.

[0010] Furthermore, an energy dissipation device is provided on the lower column connecting member, and the energy dissipation device includes a support plate provided on the outer wall of the lower column connecting member and a support plate pad provided on the support plate.

[0011] Furthermore, the cross beam includes a main beam, a seismic isolation layer arranged on the main beam, and an upper cover plate arranged on the seismic isolation layer.

[0012] Furthermore, an embedding groove is provided on the main beam, and a protrusion matching with the groove is provided at the lower end of the upper cover plate.

[0013] Furthermore, an oblique support rod is arranged between the lower part of the lower column and the bottom plate, and the oblique support rod includes an upper joint plate arranged at the lower part of the lower column, a support rod connected to the upper joint plate, and a lower joint plate connected to the lower end of the support rod.

[0014] A construction method for a frame structure of an assembled building, comprising the following steps: S1. Installation of the base: Install the base at the predetermined position of the base plate according to the design requirements, embed the lower part of the base before pouring the base plate, or use expansion screws to fix the base to the base plate; S2, installation of the lower column, connecting the connection block at the lower end of the lower column to the base, including inserting the plug-in column into the lower groove after placing a gasket on the base, and fixing the connection plate and the base of the connection block with fasteners; installing the diagonal brace at the lower part of the lower column; S3, installation of the connector, assembling the upper column connector, the lower column connector, the beam connector and the shock-absorbing pad into a connector, sleeve the lower column connector on the upper end of the lower column, and use fasteners to firmly connect the lower column connector to the lower column; S4. Installation of crossbeams and longitudinal beams. Installation of crossbeams: lift the main beam of the crossbeam, firmly connect its end with the support arm, and then lift the shock-absorbing layer and the upper cover plate in turn. Installation of longitudinal beams: The installation method of longitudinal beams is the same as that of crossbeams. S5. Install the upper column by inserting the lower end of the upper column into the upper slot of the upper column connector and fixing the upper column connector to the upper column using fasteners; S6. Repeat steps S3-S5 until the installation of the entire frame structure is completed. S6. Repeat steps S3-S5 until the installation of the entire frame structure is completed.

[0015] The present invention arranges shock-absorbing pads in the connector, arranges seismic isolation layers in the crossbeam and the longitudinal beam, arranges gaskets between the lower column and the base, and arranges energy dissipation devices on the connector, so as to realize multiple transmission and dissipation of vibration energy, improve the seismic performance of the structure, and enhance the safety of the structure.

[0016] The prefabricated frame structure of the present invention adopts an assembled construction method. Most components such as columns, beams and connectors can be prefabricated in the factory and only need to be assembled on site. This greatly shortens the construction period, reduces the construction difficulty, and also saves labor and construction space.

[0017] The present invention ensures tight connection and smooth appearance between columns and beams through mortise and tenon jointing and bolt bolting technology, thereby enhancing the overall stability of the structure.

[0018] The installation operation of the present invention is simple and easy, and the construction difficulty is reduced. The design of the connector makes the installation of the upper column, the lower column, the cross beam and the longitudinal beam more convenient, and reduces the complexity of on-site construction.

[0019] The assembled frame structure and construction method of the present invention are in line with the current development trend of building industrialization and adapt to the development of the construction industry towards a more efficient, environmentally friendly and sustainable direction. Through standardized and modular component production, the utilization efficiency of resources is improved and energy consumption and emissions are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 is an exploded view of the lower column, spacers, and base.

[0022] Figure 3 is an exploded view of the upper column, connector, and lower column.

[0023] Figure 4 It is a schematic diagram of the connector structure.

[0024] Figure 5 is an exploded view of the connector.

[0025] Figure 6 It is a structural schematic diagram of the connector and the energy dissipation device.

[0026] Figure 7 It is an exploded view of the energy consuming device.

[0027] Figure 8 Exploded view of the beam.

[0028] Fig. 9 This is a construction method diagram.

[0029] In the figure: 1, upper column, 2, lower column, 3, cross beam, 4, longitudinal beam, 5, connector, 6, base, 7, gasket, 8, bottom plate, 11, upper plug, 21, lower plug, 22, connecting block, 23, diagonal brace, 31, main beam, 32, seismic isolation layer, 33, upper cover plate, 51, upper column connector, 52, lower column connector, 53, beam connector, 54, shock-absorbing pad, 61, lower groove, 62, limit column, 221 , connecting base plate, 222, plug-in column, 223, connecting plate, 231, upper joint plate, 232, support rod, 233, lower joint plate, 311, embedded groove, 331, end cover plate, 332, middle cover plate, 333, seismic isolation pad, 334, protrusion, 511, upper slot, 512, pipe sleeve, 521, connector, 522, support plate, 523, support plate pad, 531, support part, 532, support arm. DETAILED DESCRIPTION

[0030] like Figure 1 As shown, the frame structure of the prefabricated building includes a base 6 arranged on a bottom plate 8, a lower column 2 arranged on the base 6, a connector 5 arranged on the lower column 2, an upper column 1 vertically arranged on the connector 5, and a crossbeam 3 and a longitudinal beam 4 horizontally connected to the connector 5. The upper column 1, the lower column 2, the crossbeam 3 and the longitudinal beam 4 are all connected through the connector 5. The structure and function of the crossbeam 3 and the longitudinal beam 4 are the same. The upper column 1, the lower column 2, the crossbeam 3, the longitudinal beam 4 and the connector 5 can be prefabricated in a factory to save construction time.

[0031] like Figure 2As shown, the base 6 is embedded in the bottom plate 8, a connecting block 22 that fits with the base 6 is provided at the lower end of the lower column 2, and a gasket 7 is provided between the base 6 and the connecting block 22. The gasket 7 can absorb and disperse the impact force and reduce the impact of vibration on the bottom plate 8. The connecting block 22 includes a connecting bottom plate 221 provided at the lower end of the lower column 2, a plug-in column 222 vertically provided at the lower end of the connecting bottom plate 221, and a connecting plate 223 horizontally provided on the outer side of the connecting bottom plate 221. There are four plug-in columns 222, which are respectively provided at the four corners of the connecting block 22, and a lower groove 61 that matches with the plug-in column 222 is provided at the upper end of the base 6. The connecting bottom plate 221 is square, and a connecting plate 223 is provided at both ends of each side thereof. Corresponding bolt penetration holes are provided on the connecting plate 223, the base 6 and the gasket 7, and the connecting plate 223 and the base 6 are fixedly connected by fasteners. The gasket 7 is matched with the base 6, and the gasket 7 is embedded in the upper end of the base 6. A through hole corresponding to the plug-in column 222 is opened on the gasket 7. A limit column 62 is vertically arranged on the base 6, and the limit column 62 is matched with the connecting block 22. When the lower column 1 and the gasket 7 are installed on the base 6, the upper end of the limit column 62 is flush with the upper end of the connecting plate 223, which not only enhances the stability of the structure, but also ensures that all components are in the correct installation position.

[0032] An oblique brace 23 is provided at the lower part of the lower column 2, and the oblique brace 23 includes an upper joint plate 231 provided at the lower part of the lower column 2, a support rod 232 connected to the upper joint plate 231, and a lower joint plate 233 connected to the lower end of the support rod 232. The lower joint plate 233 is provided on the bottom plate 8, and the lower part of the lower joint plate 233 is pre-embedded in the bottom plate 8. When the lower column 2 is a concrete column, the upper joint plate 231 is pre-embedded in the lower column 2. When the lower column 2 is a steel column, the upper joint plate 231 is welded to the lower column 2.

[0033] like Figure 3-Figure 5 As shown, the connector 5 includes an upper column connector 51, a lower column connector 52 connected to the lower end of the upper column connector 51, and a beam connector 53 arranged between the upper column connector 51 and the lower column connector 52. The upper column connector 51 is used to connect with the upper column 1, the lower column connector 52 is used to connect with the lower column 2, and the beam connector 53 is used to connect with the cross beam 3 or the longitudinal beam 4. An upper slot 511 is provided downwardly at the upper end of the upper column connector 51, an upper plug 11 matching with the upper slot 511 is provided at the lower end of the upper column 1, corresponding through holes are provided on the upper plug 11 and the upper column connector 51, and the upper plug 11 and the upper column connector 51 are fixedly connected by fasteners. A plug matching with the lower column connector 52 is provided at the upper end of the upper column 1, and the upper column 1 can be connected at the upper end of the upper column 1 through the connector 5, and a multi-layer structure is constructed by stacking multiple upper columns 1.

[0034] A lower slot is formed upwardly at the lower end of the lower column connecting member 52, and a lower plug 21 is formed at the upper end of the lower column 2 to match the lower slot. Corresponding through holes are formed on the lower slot and the lower plug 21, and the lower slot and the lower plug 21 are fixedly connected by fasteners. Figure 6 and Figure 7 As shown, an energy dissipation device is provided on the outer wall of the lower column connecting member 52, and the energy dissipation device includes a support plate 522 provided on the outer wall of the lower column connecting member 52 and a support plate pad 523 provided on the support plate 522, the support plate 522 is used to support the lower side of the cross beam 3 and / or the longitudinal beam 4, and the support plate pad 523 is located between the support plate 522 and the cross beam 3 and / or the longitudinal beam 4, and is used to provide additional support and energy absorption functions when the cross beam 3 and / or the longitudinal beam 4 are subjected to external forces. A through hole corresponding to the through hole of the cross beam 3 is provided on the support plate pad 523, and the cross beam 3 is fixedly connected to the support plate pad 523 by fasteners. There is a notch on the support plate 522, and a notch corresponding to the notch is provided at the lower end of the support plate pad 523 to ensure that the two can be correctly and tightly matched. In this embodiment, the support plate 522 is two parallel strips. The support plate 522 can also be an annular plate provided on the outer wall of the lower column connecting member 52, and the inner wall of the annular plate is connected to the outer wall of the lower column connecting member 52.

[0035] A downward sleeve 512 is provided at the lower end of the upper column connecting member 51, and a connector 521 matching the lower column connecting member 52 is provided at the upper end thereof. Corresponding through holes are provided on the sleeve 512 and the connector 521, and the sleeve 512 and the connector 521 are fixedly connected by fasteners. There are four sleeves 512, which are provided at the four corners of the upper column connecting member 51 to ensure structural stability and connection balance.

[0036] The beam connector 53 is cross-shaped and horizontally arranged. The beam connector 53 includes a central support portion 531 and four equal-length support arms 532, and the angle between two adjacent support arms 532 is 90°. The four support arms 532 are respectively used to connect with the cross beam 3 and the longitudinal beam 4. The pipe sleeve 512 and the connecting sleeve 521 form four through holes for the support arms 532 to pass through. Shock-absorbing pads 54 are arranged on both the upper and lower sides of the beam connector 53. The shock-absorbing pads 54 are used to absorb and disperse the impact force caused by the upper load or vibration of the cross beam or longitudinal beam, and reduce the impact and vibration on the upper column or lower column.

[0037] like Figure 1 and Figure 8As shown, the cross beam 3 includes a main beam 31, a seismic isolation layer 32 arranged on the main beam 31, and an upper cover plate 33 arranged on the seismic isolation layer 32. Both ends of the main beam 31 are provided with plug-in slots corresponding to the support arms 532. Corresponding through holes are provided on the support arms 532, the main beam 31, the seismic isolation layer 32, and the upper cover plate 33. The support arms 532, the main beam 31, the seismic isolation layer 32, and the upper cover plate 33 are fixedly connected by fasteners. After the cross beam 3 is installed, the floor slab is installed on the upper cover plate 33. Corresponding through holes are provided on the main beam 31, the seismic isolation layer 32, and the upper cover plate 33, and bolts are commonly connected through the main beam 31, the seismic isolation layer 32, and the upper cover plate 33.

[0038] The upper cover plate 33 includes an end cover plate 331, a middle cover plate 332 and a seismic isolation pad 333. One end of the end cover plate 331 is connected to the support arm 532, and there are at least two end cover plates on the main beam 31. The middle cover plate 332 is located between the end cover plates 331, and there may be no middle cover plate 332 on the main beam 31. The seismic isolation pad 333 is between the end cover plates 331 or between the end cover plates 331 and the middle cover plates 332 to enhance the stability of the cross beam 3 and reduce the effect of horizontal vibration. Through holes corresponding to the main beam 31 and the seismic isolation layer 32 are opened on the end cover plate 331, the middle cover plate 332 and the seismic isolation pad 333, and fasteners are inserted in the through holes. Although the fasteners in this embodiment are bolts, the selection of fasteners is not limited to this, and the fasteners can also be rivets, etc.

[0039] A groove 311 is provided downwardly at the upper end of the main beam 31, and a protrusion 334 is provided at the lower end of the upper cover plate 33 to cooperate with the groove 311. The cooperation between the groove 311 and the protrusion 334 makes the connection between the upper cover plate 33 and the main beam 31 tighter and more stable. It can effectively prevent the upper cover plate 33 from displacement or loosening when subjected to force, thereby ensuring the stability and safety of the entire structure. The groove 311 on the main beam 31 can be one or two or more. The appropriate number of grooves 311 can be selected according to the width and material of the main beam 31. In this embodiment, two grooves 311 are provided on the main beam 31. The groove 311 is a triangular groove.

[0040] An opening is provided on the seismic isolation layer 32 , and the opening is opened at a position vertically corresponding to the embedding groove 311 . The shape of the opening is the same as the upper end of the embedding groove 311 , that is, the seismic isolation layer 32 and the main beam 31 have the same shape in top view projection.

[0041] The gasket 7, the seismic isolation layer 32, the shock absorbing pad 54, the seismic isolation pad block 333 and the support plate pad 523 are all made of flexible materials. In this embodiment, the flexible material is high damping rubber. The flexible material can also be polyurethane elastomer, natural rubber, butyl rubber or chloroprene rubber, etc.

[0042] like Fig. 9 As shown, the construction method of the frame structure of the aforementioned prefabricated building includes the following steps: S1, installation of the base 6, installing the base 6 at a predetermined position of the base plate 8 according to the design requirements, pre-embedding the lower part of the base 6 before pouring the base plate 8, or fixing the base 6 on the base plate 8 with expansion screws; S2. Installation of the lower column 2, connecting the connection block 22 at the lower end of the lower column 2 to the base 6, including inserting the plug column 222 into the lower groove 61, and firmly connecting the connection block 22 to the base 6 using fasteners through the through-holes on the connection plate 223 and the base 6; installing the diagonal brace 23 at the lower part of the lower column 2, the upper joint plate 231 at the lower part of the lower column 2, and the lower joint plate 233 on the bottom plate 8 to ensure a firm connection; S3, installation of connector 5, assembling upper column connector 51, lower column connector 52, beam connector 53 and shock-absorbing pad 54 into connector 5; sleeve lower column connector 52 on the upper end of lower column 2, and use fasteners to firmly connect lower column 2 with lower column connector 52; S4, installation of cross beam 3 and longitudinal beam 4, installation of cross beam 3: hoist the main beam 31, the insertion slot of the main beam 31 of the cross beam 3 corresponds to the support arm 532, use fasteners to firmly connect the main beam 31 and the beam connector 53, hoist the shock-absorbing layer 32 and the upper cover plate 33 in turn, and fix the shock-absorbing layer 32 and the upper cover plate 33 with bolts; during the installation of cross beam 3 and longitudinal beam 4, ensure that the seismic isolation layer 32 and the flexible materials such as the support plate pad 523 are correctly installed and play a role; installation of longitudinal beam 4: the installation method of longitudinal beam 4 is the same as that of cross beam 3; S5, installation of the upper column 1, inserting the lower end of the upper column 1 into the upper slot 511 of the upper column connecting member 51, and firmly connecting the upper column 1 to the upper column connecting member 51 with bolts; S6, repeat steps S3-S5 until the installation of the entire frame structure is completed; S7. Subsequent construction: According to the requirements of the construction drawings, continue with subsequent construction work, such as exterior wall installation, floor slabs, interior decoration, etc.

Claims

1. A frame structure of an assembled building, characterized in that: It includes a base, a lower column arranged on the base, a connector arranged on the lower column, and an upper column, a crossbeam and a longitudinal beam arranged on the connector; the connector includes an upper column connecting piece, a lower column connecting piece connected to the lower end of the upper column connecting piece, and a beam connecting piece arranged between the upper column connecting piece and the lower column connecting piece; an upper slot is provided at the upper end of the upper column connecting piece, an upper plug matching therewith is provided at the lower end of the upper column, and the upper column connecting piece and the upper plug are fixedly connected by fasteners; a lower slot is provided at the lower end of the lower column connecting piece, a lower plug matching therewith is provided at the upper end of the lower column, and the lower column connecting piece and the lower plug are fixedly connected by fasteners.

2. The frame structure of the prefabricated building according to claim 1, characterized in that: A connecting block is arranged at the lower end of the lower column, and the connecting block includes a connecting base plate arranged at the lower end of the lower column, a plug-in column arranged at the lower end of the connecting base plate, and a connecting plate arranged on the outer side of the connecting base plate. A gasket is arranged between the base and the connecting block; a lower groove cooperating with the plug-in column is arranged on the base, and the connecting plate, the gasket and the base are fixedly connected by fasteners.

3. The frame structure of the prefabricated building according to claim 1, characterized in that: Shock-absorbing pads are arranged between the upper column connecting member and the beam connecting member, and between the lower column connecting member and the beam connecting member.

4. The frame structure of the prefabricated building according to claim 1, characterized in that: The beam connecting member comprises a central supporting portion and four equal-length supporting arms, and the angle between two adjacent supporting arms is 90°.

5. The frame structure of the prefabricated building according to claim 1, characterized in that: A downward sleeve is arranged at the lower end of the upper column connecting piece, and a connecting head matching with the upper end of the lower column connecting piece is arranged, and the sleeve and the connecting head are fixedly connected by fasteners.

6. The frame structure of the prefabricated building according to claim 1, characterized in that: An energy dissipation device is arranged on the lower column connecting member, and the energy dissipation device comprises a support plate arranged on the outer wall of the lower column connecting member and a support plate pad arranged on the support plate.

7. The frame structure of the prefabricated building according to claim 1, characterized in that: The cross beam comprises a main beam, a seismic isolation layer arranged on the main beam, and an upper cover plate arranged on the seismic isolation layer.

8. The frame structure of the prefabricated building according to claim 7, characterized in that: An embedding groove is provided on the main beam, and a protrusion matched with the upper cover plate is provided at the lower end of the upper cover plate.

9. The frame structure of the prefabricated building according to claim 1, characterized in that: An oblique support rod is arranged between the lower part of the lower column and the bottom plate, and the oblique support rod comprises an upper joint plate arranged at the lower part of the lower column, a support rod connected to the upper joint plate, and a lower joint plate connected to the lower end of the support rod.

10. A construction method for a frame structure of an assembled building according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Installation of the base: Install the base at the predetermined position of the base plate according to the design requirements, embed the lower part of the base before pouring the base plate, or use expansion screws to fix the base to the base plate; S2, installation of the lower column, connecting the connection block at the lower end of the lower column to the base, including inserting the plug-in column into the lower groove after placing a gasket on the base, and fixing the connection plate and the base of the connection block with fasteners; installing the diagonal brace at the lower part of the lower column; S3, installation of the connector, assembling the upper column connector, the lower column connector, the beam connector and the shock-absorbing pad into a connector, sleeve the lower column connector on the upper end of the lower column, and use fasteners to firmly connect the lower column connector to the lower column; S4. Installation of crossbeams and longitudinal beams. Installation of crossbeams: lift the main beam of the crossbeam, firmly connect its end with the support arm, and then lift the shock-absorbing layer and the upper cover plate in turn. Installation of longitudinal beams: The installation method of longitudinal beams is the same as that of crossbeams. S5. Install the upper column by inserting the lower end of the upper column into the upper slot of the upper column connector and fixing the upper column connector to the upper column using fasteners; S6. Repeat steps S3-S5 until the installation of the entire frame structure is completed.

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