Site-assembled structures for steel frame modular buildings

Abstract

The present invention is an on-site assembly structure for steel frame modular buildings. The present invention uses vertical column connection bars to pass through the integral cast-in-place floor slab from the bottom of the upper steel pipe column in the node and extend into the top of the lower steel pipe column in the node area. The steel pipe is provided with tension steel bars at the corresponding positions of the steel beam flanges in the node area. The node vertical connection steel bars are provided with stirrups and tension steel bars at the integral cast-in-place floor slab of the floor. The steel pipe column is filled with cast-in-place concrete (or high-strength grouting material) in the node area. The present invention is reasonably designed, not only has good stress-bearing performance, can effectively shorten the construction time, but also can meet the connection requirements with other components, including modular prefabricated components. The present invention has good stress-bearing performance, reliable force transmission, and can realize the rapid assembly of structural modular units, improve construction efficiency, and ensure engineering safety.

Description

Technical Field

[0001] The invention discloses an on-site assembled structure, in particular an on-site assembled structure for a steel frame modular building, belonging to an innovative technology for on-site assembled structures for a steel frame modular building. Background Art

[0002] With the development of prefabricated buildings in my country, the concept of modular buildings has been proposed. Compared with traditional prefabricated buildings, this type of building has the advantages of high integration, fast and convenient construction, etc. In addition, while ensuring rapid assembly, it also requires a firm and reliable on-site assembly node method to ensure the safety of the structure. Summary of the invention

[0003] The purpose of the present invention is to provide a field assembly structure for steel frame modular buildings in consideration of the above problems. The present invention can not only ensure the quick installation of the components of the modular structure and effectively shorten the construction time, but also ensure the reliable force transmission of the connected components in the modular building.

[0004] The technical scheme of the present invention is as follows: the on-site assembly structure for steel frame modular buildings of the present invention comprises an upper module structure bottom plate, an upper module steel beam, an upper module steel pipe column, a lower module structure top plate, a lower module steel beam, and a lower module steel pipe column, wherein the upper module structure bottom plate is supported on the upper module steel beam, the bottom of the upper module steel pipe column passes through the upper module steel beam and is connected to the top of the lower module structure top plate, the upper part of the upper module steel pipe column passes through the upper module structure bottom plate and extends out of the top of the upper module structure bottom plate and is connected to the upper module node, the lower module structure top plate is supported on the lower module steel beam, and the lower module steel pipe column is connected to the upper module node. The upper part of the column passes through the lower module steel beam and is connected to the bottom of the lower module structure top plate, the lower part of the lower module steel pipe column is connected to the lower module node or structural foundation, and the upper module steel pipe column and the lower module steel pipe column are provided with column inner connecting ribs, the upper part of the column inner connecting ribs passes through the lower module structure top plate and extends into the hollow cavity provided in the upper module steel pipe column, the lower part of the column inner connecting ribs is placed in the hollow cavity provided in the lower module steel pipe column, and the upper part of the column inner connecting ribs is anchored to the cast-in-place concrete in the hollow cavity provided in the upper module steel pipe column, and the upper part of the column inner connecting ribs is anchored to the cast-in-place concrete in the hollow cavity provided in the lower module steel pipe column.

[0005] The present invention uses vertical in-column connecting bars to pass through the integral cast-in-place floor slab from the cast-in-place concrete area at the bottom of the upper steel pipe column in the node, and extend into the cast-in-place concrete area at the top of the lower steel pipe column in the node area. The steel pipe is provided with tensioning steel bars at the corresponding positions of the flanges of the steel beams in the node area. The vertical connecting steel bars of the node are provided with stirrups and tensioning steel bars at the integral cast-in-place floor slab of the floor. The steel pipe column is filled with cast-in-place concrete (or high-strength grouting material) in the node area. The present invention is reasonably designed, not only has good stress-bearing performance, can effectively shorten the construction time, but also can meet the connection requirements with other components, including modular prefabricated components. The present invention is an on-site assembly structure for steel frame modular buildings that is ingeniously designed, convenient and practical, ensures engineering safety, and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of the present invention;

[0007] Figure 2 for Figure 1 AA cross-sectional diagram of ;

[0008] Figure 3 for Figure 1 BB cross-sectional diagram;

[0009] Figure 4 for Figure 1 Schematic diagram of CC cross section. DETAILED DESCRIPTION

[0010] Example:

[0011] The structural schematic diagram of the present invention is as follows Figure 1As shown, the on-site assembly structure for steel frame modular buildings of the present invention comprises an upper module structure bottom plate 1, an upper module steel beam 2, an upper module steel pipe column 3, a lower module structure top plate 4, a lower module steel beam 6, and a lower module steel pipe column 7, wherein the upper module structure bottom plate 1 is supported on the upper module steel beam 2, the bottom of the upper module steel pipe column 3 passes through the upper module steel beam 2 and is connected to the top of the lower module structure top plate 4, the upper part of the upper module steel pipe column 3 passes through the upper module structure bottom plate 1 and extends out of the top of the upper module structure bottom plate 1 and is connected to the upper module node, the lower module structure top plate 4 is supported on the lower module steel beam 6, and the upper part of the lower module steel pipe column 7 It passes through the lower module steel beam 6 and is connected to the bottom of the lower module structure top plate 4. The lower part of the lower module steel pipe column 7 is connected to the lower module node or structural foundation. The upper module steel pipe column 3 and the lower module steel pipe column 7 are provided with column connecting ribs 9. The upper part of the column connecting ribs 9 passes through the lower module structure top plate 4 and extends into the hollow cavity provided in the upper module steel pipe column 3. The lower part of the column connecting ribs 9 is placed in the hollow cavity provided in the lower module steel pipe column 7, and the upper part of the column connecting ribs 9 is anchored to the cast-in-place concrete 12 in the hollow cavity provided in the upper module steel pipe column 3, and the upper part of the column connecting ribs 9 is anchored to the cast-in-place concrete 13 in the hollow cavity provided in the lower module steel pipe column 7.

[0012] In this embodiment, the top plate 4 of the lower module structure is provided with tie bars 10 for tying the connecting bars 9 in the columns.

[0013] In this embodiment, stirrups and tensioning steel bars 10 for connecting the connecting bars 9 in the columns are provided in the top plate 4 of the lower module structure.

[0014] In this embodiment, the above-mentioned column inner connecting ribs 9 are welded to the inner walls of the upper module steel pipe column 3 and the lower module steel pipe column 7.

[0015] In this embodiment, the above-mentioned integral cast-in-place floor slab is provided with stirrups and tension steel bars 10 at 4 locations.

[0016] In this embodiment, tension steel bars 8 are provided in the upper module steel pipe column 3 and the lower module steel pipe column 7 .

[0017] In this embodiment, the tension reinforcement 8 is arranged at the steel beam flange 14 of the upper module steel pipe column 3 and the lower module steel pipe column 7 .

[0018] In this embodiment, the tension reinforcement 8 is plug-welded through holes at the flanges of the steel beams in the upper module steel pipe column 3 and the lower module steel pipe column 7 .

[0019] In this embodiment, a sealing steel plate 11 is provided at the bottom of the cast-in-place concrete 13 to prevent leakage during grouting.

[0020] In this embodiment, the steel pipe column can also be filled with high-strength grouting material in the node area.

[0021] The present invention is used for the rapid on-site installation of modular box units; after the lower modular box is completed, the connecting steel bars in the column are installed, the cast-in-place floor slab is constructed and the node area in the column is filled, and after the upper box is placed, the node area under the steel column of the upper box is filled with concrete (or high-strength grouting material). The present invention not only has good force-bearing performance, but also has reasonable connection with the connected components, especially prefabricated components, and is convenient and efficient in construction, and can be widely promoted and applied.

[0022] The application example of the present invention is as follows: The Industrial 4.0 Exhibition Hall of Ronggui District Government is located in Ronggui District, Shunde City, Guangdong Province, with a construction area of ​​230 square meters and a steel frame MIC structure. The building is a modular steel frame MIC exhibition hall, and the upper frame is quickly assembled from prefabricated frame units. To this end, the engineering design personnel adopted the on-site assembly node method of the structural modular building of the present invention, so that the upper modular building can be quickly installed and reliably connected.

Claims

1. A field-assembled structure for steel frame modular buildings, characterized in that The upper module structure comprises an upper module bottom plate, an upper module steel beam, an upper module steel pipe column, a lower module structure top plate, a lower module steel beam, and a lower module steel pipe column, wherein the upper module structure bottom plate is supported on the upper module steel beam, the bottom of the upper module steel pipe column passes through the upper module steel beam and is connected to the top of the lower module structure top plate, the upper part of the upper module steel pipe column passes through the upper module structure bottom plate and extends out of the top of the upper module structure bottom plate and is connected to the upper module node, the lower module structure top plate is supported on the lower module steel beam, the upper part of the lower module steel pipe column passes through the lower module steel beam and is connected to the lower module The bottom of the block structure top plate is connected, the lower part of the lower module steel pipe column is connected to the lower module node or structural foundation, the upper module steel pipe column and the lower module steel pipe column are provided with column inner connecting ribs, the upper part of the column inner connecting ribs passes through the lower module structure top plate and extends into the hollow cavity provided by the upper module steel pipe column, the lower part of the column inner connecting ribs is placed in the hollow cavity provided by the lower module steel pipe column, and the upper part of the column inner connecting ribs is anchored to the cast-in-place concrete in the hollow cavity provided by the upper module steel pipe column, and the upper part of the column inner connecting ribs is anchored to the cast-in-place concrete in the hollow cavity provided by the lower module steel pipe column; The above-mentioned connecting bars in the columns are welded on the inner walls of the upper module steel pipe columns and the lower module steel pipe columns; stirrups and tension steel bars are arranged at the integral cast-in-place floor slabs of the floors; tension steel bars are arranged in the above-mentioned upper module steel pipe columns and the lower module steel pipe columns; the above-mentioned tension steel bars are arranged at the positions of the steel beam flanges of the upper module steel pipe columns and the lower module steel pipe columns.

2. The on-site assembly structure for steel frame modular buildings according to claim 1, characterized in that The top plate of the lower module structure is provided with tie bars for tying the connecting bars in the columns.

3. The on-site assembly structure for steel frame modular buildings according to claim 1, characterized in that The top plate of the lower module structure is provided with stirrups and tensioning steel bars for connecting the connecting bars in the columns.

4. The on-site assembly structure for steel frame modular buildings according to claim 1, characterized in that The above-mentioned tension reinforcement perforation plugs are welded at the flanges of the steel beams in the upper module steel pipe columns and the lower module steel pipe columns.

5. The on-site assembly structure for steel frame modular buildings according to claim 1, characterized in that A sealing steel plate is provided at the bottom of the cast-in-place concrete to prevent leakage during grouting.

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