CN217949331U - Modularization steel house room - Google Patents

Abstract

The utility model provides a modularized steel structure house, which relates to the technical field of house construction, and comprises a plurality of module units and a limb connecting unit, wherein the module units are fixedly connected through the limb connecting unit; each module unit comprises a steel beam and a steel column; the module unit also comprises an outer sleeve, the bottom of the outer sleeve is provided with a switching piece, the lower end of the switching piece is fixedly connected with the upper end of the steel column of the module unit below, the outer sleeve is used for sleeving the lower end of the steel column of the module unit above, and the upper end of the switching piece is tightly propped against the lower end of the steel column of the module unit above; the steel beam is connected to the wall plate of the outer sleeve. Through the utility model discloses, allies oneself with limb modularization building and has solved current modularization building junction and lead to the node to pass power complicacy, structural component overlap because of many roof beams many posts, and the outer sleeve makes each module unit connection's of modularization house node pass power more clear and definite simultaneously, and makes the section bar selection range of girder steel and steel column more extensive.

Description

Modularization steel house room

Technical Field

The utility model belongs to the technical field of housing construction technique and specifically relates to a modularization steel house room is related to.

Background

The modular building refers to a building which divides the building into a plurality of module units, the structural framework, pipelines, decoration, equipment, fixed furniture and the like in the module units are finished in advance, even the exterior decoration can be finished in advance, and then the module units are transported to a construction site to be spliced together like building blocks. The modular building is a high-level stage of the industrial development of the building as a highly integrated assembly type building, realizes the technical advantages of high-efficiency construction, environmental protection, convenient disassembly and the like through high prefabrication rate, and is highly consistent with the construction requirements of the standardized design, the industrialized production, the assembly construction and the integrated decoration of the assembly type building.

The modular building is mainly divided into a steel structure module unit, a concrete structure module unit and a wood structure module unit according to different structural materials. The steel structure module unit is compared in both the quality is lighter and structural strength is higher in the back, makes things convenient for the hoist and mount transportation, has obtained more extensive application.

In modular buildings, the connection between the modular units is crucial. The joints of each modular unit often have the connection characteristics of multiple beams and multiple columns, such as two columns and four beams of corner columns, "four columns and eight beams" of side columns and "eight columns and sixteen beams" of center columns, and it is the key of modular building construction to ensure that the joints have enough strength, good enough reliability, fault-tolerant space and convenient construction, installation and detection.

In order to solve the problems, the existing improvement method is to connect each module unit through a coupling unit so as to avoid overlapping of multi-beam and multi-column structural members caused by overlapping and splicing of adjacent modules and improve the assembly performance of the system. Specifically, in the patent with the application number of 202020631790.4 and the name of composite connecting node for a coupled modular assembly type steel structure, the node for the coupled modular assembly type steel structure house is provided, and a module unit and a coupled unit are connected at the joint of a square steel pipe column by using the composite connecting mode of an inner sleeve and angle steel, so that the green and efficient node connecting mode of factory welding and field assembly is completely realized, and the problems of complex force transmission at the node and overlapping structural members caused by multiple beams and multiple columns of the traditional modular building are solved.

However, the joint structure for splicing the coupling unit and the module unit is too complex, the assembly is difficult, the operation space is limited, the field assembly efficiency is low, the time and the labor are wasted, and the existing connection mode of the coupling unit and the module unit is only suitable for connecting the square steel pipe column and the H-shaped steel beam, so that the type selection of the steel column and the steel beam is limited.

Disclosure of Invention

An object of the utility model is to provide a modularization steel house room to among the solution prior art, modularization building concatenation department leads to the node to pass power complicacy, structural component overlap because of many roof beams multicolumns, and current allies oneself with limb unit and modular unit's connected mode only is applicable to the section bar selection limited class of technical problem that square steel tubular column and H shaped steel roof beam connected and lead to girder steel and steel column.

The utility model provides a modular steel structure house, which comprises a plurality of module units and a limb connecting unit, wherein the module units are fixedly connected through the limb connecting unit; each module unit comprises a steel beam and a steel column; the module unit also comprises an outer sleeve, the bottom of the outer sleeve is provided with a switching piece, the lower end of the switching piece is fixedly connected with the upper end of the steel column of the module unit below, the outer sleeve is used for sleeving the lower end of the steel column of the module unit above, and the upper end of the switching piece is connected with the lower end of the steel column of the module unit above; the steel beam is connected to the wall plate of the outer sleeve.

Furthermore, the steel beam and the steel column are H-shaped steel.

Furthermore, the limb connecting unit also comprises an upper L-shaped outer connecting piece, the upper L-shaped outer connecting piece comprises a first vertical limb and a first horizontal limb which are perpendicular to each other, the first vertical limb is fixedly connected with the outer sleeve, and the first horizontal limb is fixedly connected with the outer side of the flange plate on one side of the steel beam close to the outer sleeve.

Furthermore, the limb connecting unit further comprises a lower L-shaped outer connecting piece, the lower L-shaped outer connecting piece comprises a second vertical limb and a second horizontal limb which are perpendicular to each other, the second vertical limb is fixedly connected with the outer sleeve, and the second horizontal limb is fixedly connected with the outer side of the lower flange plate on one side, close to the outer sleeve, of the steel beam.

Furthermore, the limb connecting unit also comprises an upper L-shaped inner connecting piece, the upper L-shaped inner connecting piece comprises a third vertical limb and a third horizontal limb which are perpendicular to each other, the third vertical limb is fixedly connected with the outer sleeve, and the third horizontal limb is fixedly connected with the inner side of the flange plate on one side of the steel beam, which is close to the outer sleeve.

Furthermore, the limb connecting unit further comprises a lower L-shaped inner connecting piece, the lower L-shaped inner connecting piece comprises a fourth vertical limb and a fourth horizontal limb, the fourth vertical limb and the fourth horizontal limb are perpendicular to each other, the fourth vertical limb is fixedly connected with the outer sleeve, and the fourth horizontal limb is fixedly connected with the inner side of the lower flange plate on one side, close to the outer sleeve, of the steel beam.

Furthermore, the upper L-shaped outer connecting piece and/or the lower L-shaped outer connecting piece are/is provided with stiffening ribs.

Further, bolt holes are formed in the outer sleeve, the steel column, the steel beam, the upper L-shaped outer connecting piece, the lower L-shaped outer connecting piece, the upper L-shaped inner connecting piece and the lower L-shaped inner connecting piece, and the outer sleeve, the steel column, the steel beam, the upper L-shaped outer connecting piece, the lower L-shaped outer connecting piece, the upper L-shaped inner connecting piece and the lower L-shaped inner connecting piece are fixedly connected through high-strength bolts penetrating through the bolt holes.

Furthermore, the adaptor is a flat plate, and the flat plate is parallel to the horizontal plane.

The utility model provides a modularization steel house room's beneficial effect is:

the utility model provides a modular steel structure house, which comprises a plurality of module units and a limb connecting unit, wherein the module units are fixedly connected through the limb connecting unit; each module unit comprises a steel beam and a steel column; the module unit also comprises an outer sleeve, the bottom of the outer sleeve is provided with a switching piece, the lower end of the switching piece is fixedly connected with the upper end of the steel column of the module unit below, the outer sleeve is used for sleeving the lower end of the steel column of the module unit above, and the upper end of the switching piece is tightly propped against the lower end of the steel column of the module unit above; the steel beam is connected to the wall plate of the outer sleeve.

Through the utility model discloses, set up the outer sleeve on every modular unit, two modular unit's steel column passes through outer bushing, and the other fixed connection of horizontally girder steel is on the exterior wall board of outer sleeve for intermodule connection can not be because stope and post and the node structure is complicated, and the assembly nature that has improved the node connection just passes power more clearly and definitely, and this kind of node structure is applicable to opening cross-section steel columns such as the H shaped steel of changing materials of drawing materials. Through selecting for use the girder steel column of opening cross-section, can accelerate the construction speed of mill, it is more convenient still to make the site Assembly, makes the connection of modular unit and allies oneself with limb unit more reliable, and the atress is more reasonable, and it is more convenient to assemble. The utility model provides a current modularization building junction lead to the node to pass power complicacy, structural component overlap because of many posts on the multi-beam, and the connected mode of current allies oneself with limb unit and modular unit only is applicable to the technical problem such as the section bar selection of square steel tubular column and H shaped steel roof beam connection leading to girder steel and steel column is limited.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an outer sleeve in a modular steel structure house provided by an embodiment of the present invention;

fig. 2 is a schematic view of connection between an outer sleeve and a lower module unit steel column and a horizontal steel beam in a modular steel structure house provided by an embodiment of the present invention;

fig. 3 is a schematic view illustrating the connection between an outer sleeve, upper and lower module unit steel columns, and horizontal steel beams in a modular steel structure house according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating connection between the lower L-shaped outer connecting member and the lower L-shaped inner connecting member and the outer sleeve and the steel beam in the modular steel structure house according to the embodiment of the present invention;

fig. 5 is a schematic connection diagram (a single steel beam) after the installation of the connection node in the modular steel structure house provided by the embodiment of the present invention is completed;

fig. 6 is a schematic connection diagram (a plurality of steel beams) after the installation of the connection nodes in the modular steel structure house provided by the embodiment of the present invention is completed;

fig. 7 is a schematic structural view of a stiffening rib added to the upper/lower L-shaped outer connecting member in the modular steel structure house according to an embodiment of the present invention.

Icon: 100-an outer sleeve; 110-an adaptor; 200-upper L-shaped external connecting piece; 210-lower L-shaped outer connector; 220-a stiffener; 300-upper L-shaped inner connector; 310-lower L-shaped inner connector; 400-high strength bolt.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected or metallurgically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments and features of the embodiments described below can be combined with each other without conflict.

The modular building is a building which divides the building into a plurality of modular units, the structural frameworks, pipelines, decorations, equipment, fixed furniture and the like in the modular units are finished in a factory in advance, the decorations on the outer surface of the modular units can be finished in advance, and then the modular units are conveyed to a construction site and are assembled together like building blocks. The modular building is a high-level stage of the industrial development of the building, achieves the technical advantages of environmental protection, high-efficiency construction, convenient disassembly and the like through high prefabrication rate, and is identical with the construction requirements of standardized design, factory production, assembly construction and integrated decoration of the assembly building.

The modular building is mainly divided into a steel structure module unit, a concrete structure module unit and a wood structure module unit according to different structural materials. Steel construction modular unit compares in the back both quality lighter and have higher intensity, and convenient hoist and mount transportation has obtained more extensive application.

In modular buildings, the connection between the modular units is crucial. The joints of each module unit have the characteristics of multi-beam and multi-column connection, and the key points for modular building construction are to ensure reasonable structure, reliable force transmission, fault-tolerant space and convenience of construction, installation and detection of the joints. In order to solve the problems, the existing improvement method is to connect each module unit through the limb connecting unit in a bolt connection mode, so that the problem of multiple beams and multiple columns at the overlapping and splicing position of adjacent modules is solved, the node structure at the connecting position is simplified, however, in the method, the horizontal connection between the steel columns of the upper module unit and the lower module unit and the steel beams needs to be completed simultaneously when the steel columns of the upper module unit and the lower module unit are vertically spliced, the node structure is still complex, the existing connection mode of the limb connecting unit and the module unit is only suitable for connecting the square steel pipe column and the H-shaped steel beam, and the type selection of the steel columns and the steel beams is limited.

Based on this, the utility model provides a modularization steel house room to modular building junction leads to the node to pass power complicacy, structural component to overlap because of many roof beams multicolumns in solving prior art, and current allies oneself with limb unit and modular unit's connected mode only is applicable to the section bar selection limited class of steel beam and steel column that leads to in the connection of square steel tubular column and H shaped steel roof beam.

The utility model provides a modular steel structure house, as shown in figures 1 to 3, comprising a plurality of module units and a limb connecting unit, wherein the module units are fixedly connected through the limb connecting unit; each module unit comprises a steel beam and a steel column; the module unit further comprises an outer sleeve 100, the bottom of the outer sleeve 100 is provided with an adapter 110, the lower end of the adapter 110 is fixedly connected with the upper end of the steel column of the module unit below, the outer sleeve 100 is used for sleeving the lower end of the steel column of the module unit above, and the upper end of the adapter 110 is tightly propped against the lower end of the steel column of the module unit above; the steel beams are attached to the walls of outer sleeve 100.

Through the embodiment of the utility model provides a, set up outer sleeve 100 on every modular unit, two modular unit's steel column passes through outer sleeve 100 and connects about making, and horizontally girder steel difference fixed connection is on the outer wall board of outer sleeve 100 respectively for intermodule connects can not be because of stoplog and post and the node structure is complicated, and the assembly nature that has improved the nodal connection just passes power more clearly and definitely, and this kind of node structure is applicable to open cross section steel columns such as the H shaped steel of changing materials of drawing materials. The technical problems that the existing modularized building connection part is complex in node force transmission and overlapped in structural members due to the fact that multiple beams and multiple columns are adopted, and the existing connection mode of the coupling units and the module units is only suitable for section selection limitation of steel beams and steel columns due to the fact that the square steel tube columns and the H-shaped steel beams are connected are solved.

In this embodiment, the plurality of module units are fixedly connected by the coupling unit, that is, the steel beams and the steel columns at the connection nodes of the plurality of module units all meet at the outer sleeve 100. Specifically, outer sleeve 100 has been previously fixedly attached to the upper ends of the steel columns of the lower modular unit at the factory by adapter 110. After arriving at a construction site, the lower ends of the steel columns of the upper module units are inserted into the outer sleeves 100 and connected and fixed with the outer sleeves 100, in which case the lower ends of the steel columns of the module units and the upper ends of the steel columns of the lower module units are pressed against the inside of the outer sleeves 100 through the adapters 110, and the outer sleeves 100 limit their horizontal displacement so that they can be fixed relatively in all directions. The horizontal steel beams are already fixedly connected to the outer wall plate of the outer sleeve 100 in a factory, and the horizontal steel beams and the outer wall plate do not interfere with each other, so that the fixed connection among the plurality of module units is completed.

It should be noted that the fixed connection of the outer sleeve 100 to the steel beam and the steel column is performed in advance in a factory, and the connection manner is generally welding, and may be other connection manners as long as the relative fixation of the outer sleeve 100 and the steel column is ensured.

Optionally, the steel beam and the steel column are H-shaped steel. It should be noted that the type selection of girder steel and steel column also can be other convenient open cross sections of assembly, and not necessarily the H shaped steel in this embodiment, as long as can guarantee that the connected node passes power reliably.

In this embodiment, as shown in fig. 4 to 6, the limb coupling unit further includes an upper L-shaped external connecting member 200, the upper L-shaped external connecting member 200 includes a first vertical limb and a first horizontal limb perpendicular to each other, the first vertical limb is fixedly connected with the outer sleeve 100, and the first horizontal limb is fixedly connected with the outer side of the upper flange plate on one side of the steel beam close to the outer sleeve 100; the limb coupling unit further comprises a lower L-shaped outer connecting member 210, the lower L-shaped outer connecting member 210 comprises a second vertical limb and a second horizontal limb which are perpendicular to each other, the second vertical limb is fixedly connected with the outer sleeve 100, and the second horizontal limb is fixedly connected with the outer side of the lower flange plate at one side of the steel beam close to the outer sleeve 100.

Specifically, two mutually perpendicular portions of the upper L-shaped outer connecting member 200 and the lower L-shaped outer connecting member 210 are fixedly connected to the steel beam and the outer sleeve 100, respectively, so that the connection of the steel beam to the outer sleeve 100 can be conveniently assembled by the upper L-shaped outer connecting member 200 and the lower L-shaped outer connecting member 210. Meanwhile, the upper L-shaped outer connecting member 200 and the lower L-shaped outer connecting member 210 can also transmit the internal force of the upper/lower flanges of the steel beam to the outer sleeve 100 and the steel column of the upper module assembly, so that the force transmission effect of the joint is improved, and the structure of the joint is more reasonable.

In this embodiment, the limb coupling unit further includes an upper L-shaped inner connecting member 300, the upper L-shaped inner connecting member 300 includes a third vertical limb and a third horizontal limb perpendicular to each other, the third vertical limb is fixedly connected with the outer sleeve 100, and the third horizontal limb is fixedly connected with the inner side of the upper flange plate at one side of the steel beam close to the outer sleeve 100; the limb coupling unit further comprises a lower L-shaped inner connecting member 310, wherein the lower L-shaped inner connecting member 310 comprises a fourth vertical limb and a fourth horizontal limb which are perpendicular to each other, the fourth vertical limb is fixedly connected with the outer sleeve 100, and the fourth horizontal limb is fixedly connected with the inner side of the lower flange plate at one side of the steel beam close to the outer sleeve 100.

Specifically, two perpendicular portions of the upper L-shaped inner connecting member 300 and the lower L-shaped inner connecting member 310 are fixedly connected to the inner side of the steel beam flange plate and the outer sleeve 100, respectively, so that the connection between the steel beam and the outer sleeve 100 can be easily assembled by the upper L-shaped inner connecting member 300 and the lower L-shaped inner connecting member 310. Meanwhile, the upper L-shaped inner connecting member 300 and the lower L-shaped inner connecting member 310 can also transmit the internal force of the upper/lower flanges of the steel beam to the outer sleeve 100 and the steel column of the upper module assembly, thereby improving the force transmission effect of the joint and making the structure of the joint more reasonable.

Preferably, as shown in fig. 7, the stiffener 220 is provided on the upper L-shaped outer connecting member 200 and/or the lower L-shaped outer connecting member 210. The stiffening ribs 220 can further enhance the rigidity of the upper L-shaped outer connecting piece 200 and the lower L-shaped outer connecting piece 210, and improve the force transmission performance of the node.

Preferably, bolt holes are formed in the outer sleeve 100, the steel column, the steel beam, the upper L-shaped outer connecting member 200, the lower L-shaped outer connecting member 210, the upper L-shaped inner connecting member 300 and the lower L-shaped inner connecting member 310, and the outer sleeve 100, the steel column, the steel beam, the upper L-shaped outer connecting member 200, the lower L-shaped outer connecting member 210, the upper L-shaped inner connecting member 300 and the lower L-shaped inner connecting member 310 are fixedly connected by high-strength bolts 400 penetrating through the bolt holes. It should be noted that the fixing connection may be implemented by other fastening means instead of the high-strength bolt 400 as in this embodiment, as long as the connection is reliable.

However, the high-strength bolt 400 has the advantages that since the welding of the outer sleeve 100 with the steel beam and the steel column is previously completed in a factory, no welding-required parts are required in a construction site, and the connection and fixation of all the parts can be completed by the bolt connection of the high-strength bolt 400, so that the modules are convenient to install and easy to detach.

Optionally, the adaptor 110 is a flat plate, and the flat plate is parallel to the horizontal plane. It should be noted that the adapter plate is not necessarily a flat plate structure in the present embodiment, and for example, the adapter 110 may also be a protrusion extending inward from the inner wall of the bottom of the outer sleeve 100, so long as it is ensured that the lower end of the steel column of the upper module unit and the upper end of the steel column of the lower module unit can be fixedly connected through the adapter 110 in the outer sleeve 100, and the contact surfaces of the adapter 110 and the lower end of the steel column of the upper module unit and the upper end of the steel column of the lower module unit are both kept parallel to the horizontal plane.

Having described the specific structure of the modular steel house, the following description will be made of the modular steel house and the method of installing the coupling units therein.

First, the inner and outer sleeves 100 have been welded to the upper ends of the H-section steel columns of the modular unit at the factory via the adapters 110, at which time the adapters 110 at the bottom of the outer sleeves 100 abut against the upper ends of the H-section steel columns, and then the H-section steel beams of the modular unit are welded to the outer wall plates of the outer sleeves 100, again at the factory, as shown in fig. 2.

At the construction site, the lower modular unit is first placed, and then the H-section steel columns of the upper modular unit are lowered into the outer sleeve 100 above the transition piece 110 and connected at the sides by high-strength bolts 400, as shown in fig. 3.

After the connection of the steel columns of the upper and lower module units is completed, the vertical limbs and the horizontal limbs of the lower L-shaped outer connection member 210 are fixed to the outer sides of the lower flange plates of the outer sleeve 100 and the H-shaped steel beam, respectively, and the vertical limbs and the horizontal limbs of the lower L-shaped inner connection member 310 are fixed to the inner sides of the lower flange plates of the outer sleeve 100 and the H-shaped steel beam, respectively, as shown in fig. 4.

Then, the vertical limbs and the horizontal limbs of the upper L-shaped outer connecting member 200 are fixed to the outer sides of the upper flange plates of the outer sleeve 100 and the H-shaped steel beam, respectively, and the vertical limbs and the horizontal limbs of the upper L-shaped inner connecting member 300 are fixed to the inner sides of the upper flange plates of the outer sleeve 100 and the H-shaped steel beam, respectively, as shown in fig. 5 and 6.

It should be noted that, the bolt holes adapted to the high-strength bolts 400 are formed in advance in each of the above components, and the components can be directly connected and fixed by the high-strength bolts 400 in the installation process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. The modular steel structure house is characterized by comprising a plurality of module units and a limb coupling unit, wherein the module units are fixedly connected through the limb coupling unit;

each module unit comprises a steel beam and a steel column;

the module unit further comprises an outer sleeve (100), an adapter (110) is arranged at the bottom of the outer sleeve (100), the lower end of the adapter (110) is fixedly connected with the upper end of a steel column of the module unit below, the outer sleeve (100) is used for sleeving the lower end of the steel column of the module unit above, and the upper end of the adapter (110) is tightly propped against the lower end of the steel column of the module unit above;

the steel beam is connected to the wall plate of the outer sleeve (100).

2. The modular steel house of claim 1, wherein the steel beams and the steel columns are H-section steel.

3. The modular steel structural house according to claim 2, wherein the coupling unit comprises an upper L-shaped outer connecting member (200), the upper L-shaped outer connecting member (200) comprises a first vertical limb and a first horizontal limb perpendicular to each other, the first vertical limb is fixedly connected with the outer sleeve (100), and the first horizontal limb is fixedly connected with the outer side of the steel beam near the flange plate on one side of the outer sleeve (100); the limb coupling unit further comprises a lower L-shaped outer connecting piece (210), wherein the lower L-shaped outer connecting piece (210) comprises a second vertical limb and a second horizontal limb which are perpendicular to each other, the second vertical limb is fixedly connected with the outer sleeve (100), and the second horizontal limb is fixedly connected with the outer side of the lower flange plate on one side, close to the outer sleeve (100), of the steel beam; the limb coupling unit further comprises an upper L-shaped inner connecting piece (300), the upper L-shaped inner connecting piece (300) comprises a third vertical limb and a third horizontal limb which are perpendicular to each other, the third vertical limb is fixedly connected with the outer sleeve (100), and the third horizontal limb is fixedly connected with the inner side of the flange plate on one side, close to the outer sleeve (100), of the steel beam; the limb coupling unit further comprises a lower L-shaped inner connecting piece (310), the lower L-shaped inner connecting piece (310) comprises a fourth vertical limb and a fourth horizontal limb which are perpendicular to each other, the fourth vertical limb is fixedly connected with the outer sleeve (100), and the fourth horizontal limb is fixedly connected with the inner side of the lower flange plate on one side, close to the outer sleeve (100), of the steel beam.

4. The modular steel house according to claim 3, characterized in that the upper L-shaped outer connector (200) and/or the lower L-shaped outer connector (210) is provided with stiffening ribs (220).

5. The modular steel house according to claim 3, wherein bolt holes are formed in the outer sleeve (100), the steel column, the steel beam, the upper L-shaped outer connecting member (200), the lower L-shaped outer connecting member (210), the upper L-shaped inner connecting member (300) and the lower L-shaped inner connecting member (310), and the outer sleeve (100), the steel column, the steel beam, the upper L-shaped outer connecting member (200), the lower L-shaped outer connecting member (210), the upper L-shaped inner connecting member (300) and the lower L-shaped inner connecting member (310) are fixedly connected by high-strength bolts (400) penetrating through the bolt holes.

6. The modular steel house according to claim 1, characterized in that the adaptor (110) is a flat plate, which is parallel to the horizontal plane.

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