A modular assembled steel structure house

Abstract

The present invention relates to a modular steel structure house with joint limbs. The steel structure house is composed of integrated room module units, joint limb units and auxiliary units. All units are prefabricated in a factory and transported to the site for assembly, and all bolt connections are adopted during the on-site assembly process. The standardized and modular integrated room module units are assembled by joint limb units with easily adjustable sizes, which makes the building layout more flexible while solving the problems of repeated waste of structural components, difficult connection, and complex force transmission caused by stacked beams, parallel columns, and double plates in existing modular buildings. The modular steel structure house with joint limbs can complete 70%-80% of the construction workload in the factory. It is a highly factory-based and industrialized prefabricated and assembled house. All bolt connections are adopted for on-site assembly, which avoids on-site welding operations, greatly shortens the on-site construction period and saves labor, and reduces the water, air and noise pollution to the environment caused by on-site construction.

Description

Technical Field

[0001] The invention belongs to the field of house construction and relates to an assembled steel structure house, in particular to a joint modular assembled steel structure house. Background Art

[0002] Modular construction refers to the division of a building into several spatial modules. All structural skeletons, equipment, pipelines, decoration, and fixed furniture in the modules are ready, and the facade decoration can also be completed. These modular components are transported to the construction site and assembled together like "building blocks". As a highly integrated prefabricated building, modular building is an advanced stage of the development of building industrialization. While achieving a high prefabrication rate, it has technical advantages such as green environmental protection, efficient construction, and convenient disassembly. It is highly consistent with the construction mode of standardized design, factory production, assembly construction, and integrated decoration of prefabricated buildings.

[0003] Modular building units can be divided into steel structure modular units, concrete structure modular units and wood structure modular units according to different structural materials. Compared with the latter two, steel structure modular units are lightweight, high-strength and convenient for lifting and transportation, and have been widely used. The "Technical Code for Steel Structure Modular Buildings" (T / CECS 507-2018) and "Technical Standard for Light Modular Steel Structure Combined Houses" (JGJ / T 466-2019) promulgated by the China Association for Engineering Construction Standardization and the Ministry of Housing and Urban-Rural Development will further promote the rapid development of my country's steel structure modular building industry.

[0004] Regarding the modular layout and structural system of steel structure modular buildings, the relevant specifications and standards have the following provisions: Article 3.2.5 of the Technical Standard for Light Modular Steel Structure Combined Houses (JGJ / T 466-2019) requires that the plane design of modular buildings should adopt different stacking forms such as plane movement, alternating withdrawal, stepped cantilever arrangement, pyramid stacking, etc. of standard modules to achieve diverse building functional requirements. Article 5.5.1 of the Technical Code for Steel Structure Modular Buildings (T / CECS 507-2018) states that "modular buildings can be divided into pure modular structures, modular-steel frame hybrid structures, modular-steel frame support hybrid structures, modular-cylinder hybrid structures, etc. according to the main lateral force resistance system."

[0005] Although the steel structure modular building technology has developed rapidly, there are still some outstanding problems. First, due to the size limitation of standard module units, only changing their stacking form to achieve different assembly forms still has certain limitations, and it is difficult to flexibly adjust the floor area and building space layout; secondly, the "Technical Code for Steel Structure Modular Building" (T / CECS 507-2018) 5.8.8 clearly states that "the connection between module units is the key part of steel structure modular buildings, with the connection characteristics of multiple columns and multiple beams, such as the 'two columns and four beams' of the corner column, the 'four columns and eight beams' of the side column, and the 'eight columns and sixteen beams' of the middle column, which should have high strength and good reliability; the node connection between module units should have fault tolerance space during construction on site, which is convenient for construction, installation and testing", so modular buildings have high requirements on the node performance and installation error of the connection between module units; finally, the existing modular buildings cannot avoid the problem of "multiple beams, multiple columns and multiple panels". The research results of Professor CDAnna's paper "Seismic Overstrength in Braced Frames of Modular Steel Buildings" show that it is difficult for the double-layer beams of the modular structure to work in an ideal collaborative state, which causes great differences in the structural stress performance; especially the complex structure of the nodes where multiple components such as "eight columns and sixteen beams" meet, low connection stiffness, and poor integrity will have an extremely adverse effect on the overall bearing capacity and seismic performance of the structure. Summary of the invention

[0006] In view of the problems existing in the above-mentioned prior art, the present invention provides a modular steel structure house with joint limbs, which is composed of integrated room module units, joint limb units and auxiliary units. All units are prefabricated in the factory and transported to the site for assembly, and all are connected by bolts during the on-site assembly process. The standardized and modular integrated room module units are assembled with joint limb units with easily adjustable sizes, which makes the building layout more flexible and solves the problems of repeated waste of structural components, difficult connection, and complex force transmission caused by multiple beams, columns and plates in existing modular buildings.

[0007] The integrated room module unit requires that the width of each module be limited within 3.6 m, and both the length and width are designed based on the modular principle, and finally presented as a standardized and factory-made box-type module unit. It is composed of a top plate, side plates and a steel structure frame. The top plate is composed of a lightweight structural plate, its upper floor decoration layer, the mechatronic, plumbing and heating pipelines embedded in the interlayer and the lower ceiling decoration layer. The side plates are divided into types such as the outer enclosure type, the household separation type and the internal partition type, and are all composed of a middle substrate and the maintenance and decoration layers on both sides. The material structure of the maintenance and decoration surface layer is determined by the functional requirements of different types of side plates. The steel structure frame includes four structural columns. Bolt holes are reserved at both the upper and lower ends of the structural columns. The upper ends of adjacent structural columns are connected by structural beams to form the main frame beams. Parallel or grid-shaped secondary beams are arranged between the main frame beams. The lower ends of the frame columns are fixed by installation brackets. When it is used in a building with a relatively large number of floors or irregular in plan and vertical directions and requires relatively high lateral stiffness and torsional stiffness, lateral force resisting elements such as steel braces or steel plate walls can be added between the steel frame columns of the integrated room module unit.

[0008] The coupled member unit is a functionally integrated modular rectangular flat plate unit with an easily adjustable planar dimension for assembling adjacent integrated room module units. It is composed of a functional plate and coupled beams embedded in the functional plate. The functional plate is composed of a lightweight structural plate, its upper floor decoration layer, the mechatronic, plumbing and heating pipelines embedded in the interlayer and the lower ceiling decoration layer. The coupled beams are divided into three types: the coupled beams embedded in two opposite sides of the functional plate, the coupled beams embedded in two adjacent sides of the functional plate, and the coupled beams embedded in three sides of the functional plate. Among them, the coupled beams embedded in two opposite sides of the functional plate include two parallel coupled beams. Parallel or grid-shaped secondary beams can be arranged between the coupled beams. Corresponding bolt holes are provided at the ends and on the outer sides of the coupled beams. The coupled beams embedded in two adjacent sides of the functional plate include two coupled beams arranged in an "L" shape. Corresponding bolt holes are provided at their ends and on the outer sides. The coupled beams embedded in three sides of the functional plate include three coupled beams arranged in a "凵" shape. Reserved corresponding bolt holes are provided at the ends and on the outer sides of the coupled beams.

[0009] The accessory units include a balcony module unit, a pitched roof module unit, an integrated wallboard unit, and an integrated floor unit. The balcony module unit consists of a top plate, side plates, and a steel frame. The top plate is composed of a lightweight structural board, an upper floor decoration layer, mechatronic and plumbing pipelines embedded in the interlayer, and a lower ceiling decoration layer. The side plates are of the peripheral enclosure type and are composed of a middle substrate and maintenance and decoration layers on both sides. The material structure of the maintenance and decoration surface layer is determined by different energy-saving decoration requirements. The steel structure frame includes two structural columns with bolt holes reserved at both the upper and lower ends. The upper ends of the two structural columns are connected by a structural beam. Perpendicular to this structural beam, a cantilever beam is rigidly connected to the upper end of each structural column, forming a "U"-shaped layout of the main frame beam at the upper ends of the two columns. Parallel secondary beams are arranged between the main frame beams, and the lower ends of the frame columns are fixed by mounting brackets. The pitched roof module unit includes a light steel truss structure layer, a thermal insulation layer, a waterproof layer, and a roofing layer. The integrated wallboard unit is in the form of prefabricated large panels in the factory and is connected in an embedded manner with the integrated room module unit and the coupled member unit on site, playing the role of peripheral enclosure and space separation. When the building has more than three floors or is in a high-intensity earthquake area, steel diagonal braces, steel plates and other lateral force resisting members can also be arranged inside the integrated wallboard to improve the overall lateral resistance of the house. The integrated floor unit is a prefabricated light steel functional floor in the factory.

[0010] The coupled member modular prefabricated steel structure house can be assembled layer by layer according to the building design scheme with integrated room module units, coupled member units, and accessory units. During the process of arranging and assembling the integrated room module units, coupled member units, and accessory units on a certain floor of the coupled member modular prefabricated steel structure house, first, the building plane is divided into a combination of several rectangular blocks with a single room or a specific building functional area; second, following the principle of layout from the four corners and the periphery to the middle, the integrated room module units are preferentially arranged at the rectangular block positions at the four corners of the building plane, and then sequentially towards the interior of the building plane, and the integrated room modules are arranged at intervals on the divided rectangular blocks; next, the coupled member units are arranged on the rectangular blocks between adjacent integrated room module units, and then the integrated room module units are assembled into a whole; finally, the accessory units are assembled, including filling and installing the integrated floor on the rectangular blocks outside the module area and the coupled member area to form a complete planar structure of the floor of this layer, ensuring smooth force transmission; then, the balcony module unit, integrated wallboard unit, pitched roof module unit and other accessory units are installed according to the building design requirements. Thus, the arrangement and assembly of all the integrated room module units, coupled member units, and accessory units on this layer are completed. For a multi-story coupled member modular prefabricated steel structure house, the arrangement and assembly of the integrated room module units, coupled member units, and accessory units on the first floor can be carried out first according to the above method, and then the arrangement and assembly of the integrated room module units, coupled member units, and accessory units on the second floor, third floor until the top floor are carried out in sequence according to the above method until the assembly of the entire coupled member modular prefabricated steel structure house is completed.

[0011] The specific connection method of the integrated room module unit and the joint unit in the joint modular prefabricated steel structure house is as follows:

[0012] (1) Mark the opposite sides and the number of opposite columns of the integrated room module units, and determine the existing SⅠ, SⅡ or SⅣ layout. Before using the joint unit to connect the integrated room module units, it is necessary to mark the opposite sides and the number of opposite columns of the integrated room module units. The definitions of opposite sides and opposite columns are as follows: the two faces closest to the distance between two adjacent integrated room module units A and B are defined as the opposite sides (PA, PB) of the two integrated room module units. The two adjacent integrated room module units (A, B) refer to the two modules with the closest distance between the centers of the integrated room module units. There are two structural columns (ZA1, ZA2) in the opposite side PA, and the opposite side P There are two structural columns (ZB1, ZB2) in B. When the plane where ZA1 and ZB1 or ZB2 are located is perpendicular to PA, ZB1 or ZB2 is called the opposite column of PA, and ZA1 is called the corresponding column of the opposite column. Similarly, when the plane where ZA2 and ZB1 or ZB2 are located is perpendicular to PA, ZB1 or ZB2 is also called the opposite column of PA, and ZA2 is called the corresponding column of the opposite column. Then, for any opposite face P, the number of opposite columns is any value among 0, 1, and 2, and the number of opposite columns of PA and PB is shown in Table 1.

[0013] Table 1 Comparison table of the number of columns facing each other in adjacent PA and PB

[0014]

[0015] For the above four situations, the occurrence of situation SⅢ can be avoided by reasonably arranging the integrated room module units. Therefore, when using the coupling unit to connect the integrated room module units, only situations SⅠ, SⅡ and SⅣ need to be considered.

[0016] (2) When the integrated room module units are connected by coupling units, they must be connected in the order of "SⅠ first and then SⅡ", that is, after all the facing columns in the SⅠ situation in the integrated room module units are connected by the coupling beams embedded in the coupling units, the facing columns in the SⅡ situation are connected. For situation SⅠ, when connecting, the four ends of the embedded coupling beams in the coupling units can be directly connected to the top ends of the four structural columns respectively by high-strength bolts; situation SⅡ also includes two situations. Assuming that the width of the opposite side PA is greater than that of the opposite side PB, SⅡ1 is when the projection of the non-opposite column of the PB surface on the PA surface is within the range of the opposite side PA, and the opposite sides PA and PB are on the same side of the plane formed by the two facing columns; SⅡ2 is when the projection of the non-opposite column of the PB surface on the PA surface is outside the range of the opposite side PA When the exterior is outside, the opposite PA and PB are located on the opposite sides of the plane formed by the two opposite columns. For situation SⅡ1, at this time, the principle of "minimizing cantilevers" must be followed, and the coupling unit must give priority to satisfying the connection between the two structural columns on the opposite PB and the integrated room module unit A, that is, the beam ends of the first coupling beam of the coupling unit must be connected to the top ends of the two opposite columns through high-strength bolts, the first end of the second coupling beam must be connected to the top end of the structural column of the non-opposite column on PB through high-strength bolts, the second end of the second coupling beam must be connected to the structural beam on PA through high-strength bolts, and there are nodes on PA that are not connected to the coupling unit; for situation SⅡ2, in the actual design process, this situation has an obvious partition effect on the two adjacent integrated modules, which is not conducive to the continuity of the building function. Therefore, situation SⅡ2 needs to be avoided in the design process.

[0017] (3) When all the connections of SⅠ and SⅡ are completed, the number of free structural columns on the two opposite sides of SⅣ is usually no more than 2. At this time, we only need to select the appropriate type of coupling unit according to the principle of proximity and make the connection.

[0018] (4) By integrating the floor slabs to fill the building space outside the module area and the joint area, all the floor slabs form a complete plane structure to ensure the integrity of the house.

[0019] (5) Complete the assembly of auxiliary units such as balcony modules, sloping roof modules and integrated wall panel units.

[0020] The beneficial effects of the present invention are:

[0021] The modular prefabricated steel structure house is a module-joint structure, and the structural force skeleton forms a lateral force resistance system such as a steel frame structure, a steel frame-support structure or a steel frame-steel plate shear wall structure, with a clear force transmission path, safe and reliable. The calculation and analysis can use the frame structure, frame-support structure or frame-shear wall structure as a mechanical model, and according to the current structural design specifications, general commercial design software can be used for design and calculation, which is convenient for engineering application.

[0022] The modular assembled steel structure house is an integrated room module unit that is assembled and arranged at intervals by means of joint units. While retaining the advantages of highly integrated modular buildings, it cleverly avoids the problems of repeated waste of structural components such as stacked beams, parallel columns, and double plates in traditional modular buildings, and can significantly increase the building's usable area.

[0023] The "single beam, single column, single plate" structural form of the joint modular prefabricated steel structure house also overcomes the shortcomings of traditional modular buildings such as the large differences in structural integrity caused by the difficulty in coordinated work of laminated beams and side-by-side columns, reduces the difficulty of connecting beam-column nodes, and greatly facilitates the on-site assembly of modules.

[0024] The modular prefabricated steel structure house can meet more architectural design requirements of plan layouts and facade shapes by introducing highly integrated joint units with easily adjustable sizes into traditional modular buildings, and better achieve the diversified architectural functional goals of modular houses.

[0025] The architectural design of the joint modular prefabricated steel structure house follows the principle of modular coordination, and can realize the standardized design and production of building space and structural components. At the same time, the integrated room module units are completely produced in modular form. Its modular, standardized and shared design concept can significantly save costs.

[0026] The modular prefabricated steel structure house can complete 70%-80% of the construction work in the factory. It is a highly factory-based and industrialized prefabricated house. All on-site assembly is done by bolt connections, avoiding on-site welding operations, greatly shortening the on-site construction period and saving labor, and reducing water, air and noise pollution to the environment caused by on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only exemplary and do not limit the present invention, wherein:

[0028] Figure 1 This is the building plan room or functional area division and unit layout diagram of Example 1, where M1 is the bathroom module, M2 is the kitchen module, M3 is the living room module, M4 is the bedroom module, L1-2, L2-3, L3-4, L1-4 are the joint units between the integrated room module units, FL1 is the integrated floor unit in the auxiliary unit, and the size unit is: mm.

[0029] Figure 2This is a schematic diagram of the structural dimensions and specifications of the integrated room module units and joint units used in Example 1, wherein M1 is the bathroom module, M2 is the kitchen module, M3 is the living room module, M4 is the bedroom module, L1-2, L2-3, L3-4, and L1-4 are the joint units between the integrated room modules, and the dimensions are in mm.

[0030] Figure 3 It is an exploded schematic diagram of the single-layer units in Example 1 before assembly, M1 is the bathroom module, M2 is the kitchen module, M3 is the living room module, M4 is the bedroom module, L1-2, L2-3, L3-4, L1-4 are the joint units between the integrated room module units, and FL1 is the integrated floor unit in the auxiliary unit.

[0031] Figure 4 This is an overall schematic diagram of the single-layer units in Example 1 after assembly.

[0032] Figure 5 This is the building plan room or functional area division and unit layout diagram of Example 2, where M1 is the secondary bedroom module, M2 is the kitchen and bathroom integrated module, M3 is the living room module, M4 is the master bedroom module, L1-2, L2-3, L3-4, L1-4 are the joint units between the integrated room module units, FL1 is the integrated floor unit in the auxiliary unit, and the size unit is: mm.

[0033] Figure 6 This is a schematic diagram of the structural dimensions and specifications of the integrated room module units and coupling units used in Example 2, wherein M1 is the secondary bedroom module, M2 is the kitchen and bathroom module, M3 is the living room module, and M4 is the master bedroom module. L1-2, L2-3, L3-4, and L1-4 are coupling units between the integrated room modules, and the dimensions are in mm.

[0034] Figure 7 It is an exploded diagram of the single-layer units in Example 2 before assembly, wherein M1 is the secondary bedroom module, M2 is the kitchen and bathroom integrated module, M3 is the living room module, M4 is the master bedroom module, L1-2, L2-3, L3-4, L1-4 are the joint units between the integrated room module units, and FL1 is the integrated floor unit in the auxiliary unit.

[0035] Figure 8 This is an overall schematic diagram of the single-layer units in Example 2 after assembly.

[0036] Fig. 9This is the building plan room or functional area division and unit layout diagram of Example 3, where M1, M2, M3, and M4 are bedroom module 1, bedroom module 2, bedroom module 3, and bedroom module 4 respectively, L1-2, L2-3, L3-4, and L1-4 are joint units between each integrated room module unit, and FL1 is an integrated floor unit in the auxiliary unit, and the unit of size is: mm.

[0037] Fig.10 This is a schematic diagram of the structural dimensions and specifications of the integrated room module units and the joint units used in Example 3, wherein M1, M2, M3, and M4 are bedroom module 1, bedroom module 2, bedroom module 3, and bedroom module 4, respectively; L1-2, L2-3, L3-4, and L1-4 are joint units between the integrated room module units, and the dimensions are in mm.

[0038] Fig.11 It is an exploded schematic diagram of the single-layer units in Example 3 before assembly, wherein M1, M2, M3, and M4 are bedroom module 1, bedroom module 2, bedroom module 3, and bedroom module 4 respectively, L1-2, L2-3, L3-4, and L1-4 are the joint units between the integrated room module units, and FL1 is the integrated floor unit in the auxiliary unit.

[0039] Fig.12 This is an overall schematic diagram of the single-layer units in Example 3 after assembly.

[0040] Fig.13 This is the building plan room or functional area division and unit layout diagram of Example 4, wherein M1, M2, M5, M6, M7, and M8 are dormitory room modules 1-8, M4 is a bathroom module, M3 is a dormitory module without a balcony, L1-2, L2-3, L3-4, L4-5, L5-6, L6-7, L7-8, L1-8, L2-7, and L3-6 are joint units between each integrated room module unit, and FL1, FL2, and FL3 are integrated floor units in the auxiliary units. The unit of size is mm.

[0041] Fig.14 This is a schematic diagram of the structural dimensions and specifications of the integrated room module units and joint units used in Example 4, wherein M1, M2, M5, M6, M7, and M8 are dormitory room modules, M4 is a bathroom module, M3 is a dormitory module without a balcony, and L1-2, L2-3, L3-4, L4-5, L5-6, L6-7, L7-8, L1-8, L2-7, and L3-6 are joint units between the integrated room module units, and the dimensions are in mm.

[0042] Fig.15It is an exploded schematic diagram of the single-layer units in Example 4 before assembly, wherein M1, M2, M5, M6, M7, and M8 are dormitory room modules, M4 is a bathroom module, M3 is a dormitory module without a balcony, L1-2, L2-3, L3-4, L4-5, L5-6, L6-7, L7-8, L1-8, L2-7, and L3-6 are joint units between the integrated room module units, and FL1, FL2, and FL3 are integrated floor units in the auxiliary units.

[0043] Fig.16 This is an overall schematic diagram of the single-layer units in Example 4 after assembly. DETAILED DESCRIPTION

[0044] Example 1

[0045] Now take a residential building with an outer axis dimension of 11.6m×10.5m as an example ( Figure 1 ), the method and process of assembling modular steel structure houses are described in detail, and the specific steps are as follows:

[0046] 1. Arrange integrated room module units

[0047] In order to avoid the occurrence of SⅡ2 and SⅢ, and considering the limitation that the width of the integrated room module unit is less than 3.6m, the building plane is divided into a combination of several rectangular blocks based on rooms or specific building functional areas. The division results are shown in Figure 1 Arrange the integrated room module units according to the above methods and principles. Figure 1 The bold dashed box shown is the integrated room module unit, where M1 is the bathroom module, M2 is the kitchen module, M3 is the living room module, and M4 is the bedroom module.

[0048] 2. Arrange the joint units and assemble the integrated room module units

[0049] Since all the integrated room module units are SⅠ, the joint units with two pairs of sides embedded with joint beams of corresponding width can be directly selected. For each pair of adjacent integrated room module units, the four ends of the joint beam are respectively connected to the four structural columns directly opposite the integrated room module units by bolts. The number and specifications of integrated room module units required for assembling a single-story house, as well as the number of joint units and structural specifications, are detailed in Figure 2 .

[0050] 3. Arrange integrated floor units and assemble joint units

[0051] After the integrated room module units M1, M2, M3, and M4 are assembled with joint units according to step 2, the rectangular block surrounded by the four joint units L1-2, L2-3, L3-4, and L1-4 is neither a module area nor a joint area. It is necessary to arrange the integrated floor unit FL1 on the building plane outside the module area and the joint area to connect the four joint units into a complete plane structure to ensure the integrity of the house.

[0052] 4. Assemble other auxiliary units

[0053] Finally, the balcony module, the pitched roof module, the integrated wall panel unit and other auxiliary units are assembled according to the architectural design. Example 1 The arrangement of the single-layer integrated room module unit, the joint unit and the auxiliary unit is shown in the exploded diagram before assembly. Figure 3 After the assembly, the single-story house looks like Figure 4 shown.

[0054] Example 2

[0055] Now take a residential building with an outer axis dimension of 11.0m×10.5m as an example ( Figure 5 ), the method and process of assembling modular steel structure houses are described in detail, and the specific steps are as follows:

[0056] 1. Arrange integrated room module units

[0057] In order to avoid the occurrence of SⅡ2 and SⅢ, and considering the limitation that the width of the integrated room module unit is less than 3.6m, the building plane is divided into a combination of several rectangular blocks based on rooms or specific building functional areas. The division results are shown in Figure 5 Arrange the integrated room module units according to the above methods and principles. Figure 5 The bold dotted box shown is the integrated room module unit, where M1 is the secondary bedroom module, M2 is the kitchen and bathroom module, M3 is the living room module, and M4 is the master bedroom module.

[0058] 2. Arrange the joint units and assemble the integrated room module units

[0059] according to Figure 5As a result of the division, the integrated room module units M1 and M2, M2 and M3, and M1 and M4 are all in the case of sⅠ, and only the case between M3 and M4 is SⅡ1. According to the order of "SⅠ first and then SⅡ", the limb units with two pairs of embedded limb beams of corresponding width can be directly selected. Between the integrated room module units M1 and M2, between M2 and M3, and between M1 and M4, the four ends of the limb beams are respectively connected to the four structural columns directly opposite the integrated room module units by bolts. After the connection is completed, only the lower right node of M4 and the lower left node of M3 are left as vacant nodes. At this time, according to the principle of proximity, the limb unit L3-4 with two pairs of embedded limb beams of appropriate width should be selected. The two limb beams are respectively connected to the lower right node of M4 and the lower left node of M3, as well as the upper left node of M3 and the right structural beam of M4. The number and specifications of the integrated room module units required for assembling a single-story house, as well as the number and structural specifications of the limb units, are detailed in Figure 6 .

[0060] 3. Arrange integrated floor units and assemble joint units

[0061] After the integrated room module units M1, M2, M3, and M4 are assembled with joint units according to step 2, the rectangular block surrounded by the four joint units L1-2, L2-3, L3-4, and L1-4 is neither a module area nor a joint area. It is necessary to arrange the integrated floor unit FL1 on the building plane outside the module area and the joint area to connect the four joint units into a complete plane structure to ensure the integrity of the house.

[0062] 4. Assemble other auxiliary units

[0063] Finally, the balcony module, the pitched roof module, and the integrated wall panel unit and other auxiliary units are assembled according to the architectural design. Example 2 The arrangement of the single-layer integrated room module unit, the joint unit and the auxiliary unit is shown in the exploded diagram before assembly. Figure 7 After the assembly, the single-story house looks like Figure 8 shown.

[0064] Example 3

[0065] Now take a residential building with an outer axis dimension of 12.4m×9.3m as an example ( Fig. 9 ), the method and process of assembling modular steel structure houses are described in detail, and the specific steps are as follows:

[0066] 1. Arrange integrated room module units

[0067] In order to avoid the occurrence of SⅡ2 and SⅢ, and considering the limitation that the width of the integrated room module unit is less than 3.6m, the building plane is divided into a combination of several rectangular blocks based on rooms or specific building functional areas. The division results are shown in Fig. 9 Arrange the integrated room module units according to the above methods and principles. Fig. 9 The bold dotted box shown is the integrated room module unit, where M1, M2, M3, and M4 are bedroom module 1, bedroom module 2, bedroom module 3, and bedroom module 4 respectively.

[0068] 2. Arrange the joint units and assemble the integrated room module units

[0069] according to Fig. 9 As a result of the division, the integrated room module units M1 and M2, M1 and M4, and M3 and M4 are all in the case of sⅠ, and only the case between M2 and M3 is SⅣ. According to the order of "SⅠ first and then SⅡ", the limb unit with two pairs of embedded limb beams of appropriate width can be directly selected. Between the integrated room module units M1 and M2, M1 and M4, and M3 and M4, the four ends of the limb beam are respectively connected to the four structural columns directly opposite the integrated room module unit by bolts. After the connection is completed, only the upper right node of M3 is left as an empty node. At this time, according to the principle of proximity, the limb unit L2-3 with two pairs of embedded limb beams of appropriate width should be selected. The two limb beams are respectively connected to the upper right node of M3 and the lower structural beam of M2, and the upper left node of M3 and the limb main beam of L1-2. The number and specifications of the integrated room module units required for assembling a single-story house, as well as the number and structural specifications of the limb units, are detailed in Fig.10 .

[0070] 3. Arrange integrated floor units and assemble joint units

[0071] After the integrated room module units M1, M2, M3, and M4 are assembled with joint units according to step 2, the rectangular block surrounded by the four joint units L1-2, L2-3, L3-4, and L1-4 is neither a module area nor a joint area. It is necessary to arrange the integrated floor unit FL1 on the building plane outside the module area and the joint area to connect the four joint units into a complete plane structure to ensure the integrity of the house.

[0072] 4. Assemble other auxiliary units

[0073] Finally, the balcony module, the pitched roof module, and the integrated wall panel unit and other auxiliary units are assembled according to the architectural design. Example 3 The arrangement of the single-layer integrated room module unit, the joint unit and the auxiliary unit is shown in the exploded diagram before assembly. Fig.11 After the assembly, the single-story house looks like Fig.12 shown.

[0074] Example 4

[0075] Now take a residential building with an outer axis dimension of 28.8m×18.0m as an example ( Fig.13 ), the method and process of assembling modular steel structure houses are described in detail, and the specific steps are as follows:

[0076] 1. Arrange integrated room module units

[0077] In order to avoid the occurrence of SⅢ, and considering the limitation that the width of the integrated room module unit is less than 3.6m, the building plane is divided into a combination of several rectangular blocks based on rooms or specific building functional areas. The division results are shown in Fig.13 Arrange the integrated room module units according to the above methods and principles. Figure 1 The positions indicated in bold dashed boxes are integrated room module units, where M1, M2, M5, M6, M7, and M8 are dormitory room modules, M4 is a bathroom module, and M3 is a dormitory module without a balcony.

[0078] 2. Arrange the joint units and assemble the integrated room module units

[0079] according to Fig.13As a result of the division, only the space between M2 and M3 is SⅡ1, and the space between other integrated modules is SⅠ. According to the order of "SⅠ first and SⅡ later", the joint units L1-8, L2-7, L3-6 and L4-5 with two pairs of sides embedded in the joint beam with a width of 3600mm and a length of 2800mm can be directly selected, and the four ends of the joint main beam are respectively placed between the integrated room module units M1 and M8, between M2 and M7, between M3 and M6, and between M4 and M5. The four structural columns on the opposite side of the integrated room module unit are connected by bolts respectively. The joint units L1-2, L7-8 and L5-6 with two pairs of sides embedded with joint beams with a width of 7200mm and a length of 3600mm are selected. The four ends of the joint beams are connected to the four structural columns on the opposite side of the integrated room module unit by bolts respectively between the integrated room module units M1 and M2, between M7 and M8, and between M5 and M6. The joint beams are connected by bolts between M6 and M7. If the distance is too far, two limb units with two pairs of embedded limb beams with a width of 7200mm and a length of 3600mm are selected and connected in sequence to form L6-7. The limb unit L3-4 with two pairs of embedded limb beams with a width of 6000mm and a length of 3600mm is selected. Between the integrated room module units M3 and M4, the four ends of the limb beam are respectively connected to the four structural columns directly opposite the integrated room module units by bolts. After the connection is completed, only the upper right node of M2 and the upper left node of M3 are left as vacant nodes. At this time, according to the principle of proximity, two limb units with two pairs of embedded limb beams with a width of 6000mm and a length of 3600mm should be selected and connected in sequence to form L2-3. The next two limb beams are respectively connected to the lower right node of M2 and the lower left node of M3, as well as the upper left node of M3 and the right structural beam of M2. The number and specifications of the integrated room module units required for assembling a single-story house, as well as the number of limb units and structural specifications, are detailed in Fig.14 .

[0080] 3. Arrange integrated floor units and assemble joint units

[0081] After the integrated room module units M1, M2, M3, M4, M5, M6, M7, and M8 are assembled with coupling units according to step 2, the vacant block is neither a module area nor a coupling area. It is necessary to arrange the integrated floor units FL1, FL2, and FL3 on the building plane outside the module area and the coupling area to connect all the coupling units into a complete plane structure to ensure the integrity of the house.

[0082] 4. Assemble other auxiliary units

[0083] Finally, the balcony module, the pitched roof module, and the integrated wall panel unit and other auxiliary units are assembled according to the architectural design. Example 4 The arrangement of the single-layer integrated room module unit, the joint unit and the auxiliary unit is shown in the exploded diagram before assembly. Fig.15 After the assembly, the single-story house looks like Fig.16 shown.

Claims

1. A modular steel structure house, characterized in that: The joint modular assembled steel structure house is composed of integrated room module units, joint units and auxiliary units. All units are prefabricated in the factory and transported to the site for assembly. The joint units are functional integrated modular rectangular flat plate units with easily adjustable plane dimensions for assembling adjacent integrated room module units. The connections between the integrated room module units, joint units and auxiliary units are all bolted. The steps of assembling the integrated room module unit and the joint unit are as follows: (1) Mark the opposite sides and the number of opposite columns of the integrated room module unit, and determine the existing SⅠ, SⅡ or SⅣ layout; (2) Connect the integrated room module units using joint units in the order of "SⅠ first and then SⅡ"; (3) According to the principle of proximity, select the appropriate type of joint unit to connect the two empty structural columns on the opposite sides of situation SⅣ; (4) By integrating the floor slabs to fill the building space outside the module area and the joint area, all the floor slabs form a complete plane structure to ensure the integrity of the house; (5) Complete the assembly of balcony modules, sloped roof modules, integrated wall panel units and other auxiliary units; Wherein, the joint unit is composed of a functional board and a joint beam embedded in the functional board; Among them, the two modules whose centers of the integrated room module units are closest are recorded as two adjacent integrated room module units A and B; the two faces closest to each other between the two adjacent integrated room module units A and B are recorded as opposite faces PA and PB; there are two structural columns ZA1 and ZA2 in the opposite face PA, and there are two structural columns ZB1 and ZB2 in the opposite face PB. When the plane where ZA1 and ZB1 or ZB2 are located is perpendicular to PA, ZB1 or ZB2 is called the opposite column of PA, and ZA1 is called the corresponding column of the opposite column. Similarly, when the plane where ZA2 and ZB1 or ZB2 are located is perpendicular to PA, ZB1 or ZB2 is also called the opposite column of PA, and ZA2 is called the corresponding column of the opposite column. The SⅠ situation means that the number of columns facing each other in the opposite side PA is 2, and the number of columns facing each other in the opposite side PB is 2; The SⅡ situation means that the number of columns facing each other in the opposite PA is 1, and the number of columns facing each other in the opposite PB is 1; The SIV situation means that the number of directly opposite columns in the directly opposite PA is 0, and the number of directly opposite columns in the directly opposite PB is 0.

2. The modular assembled steel structure house according to claim 1 is characterized in that: The integrated room module unit requires that the width of each module be limited to within 3.6m, and the length and width are designed based on the principle of modularization, and finally presented as a standardized, factory-made box-type module unit.

3. The modular assembled steel structure house according to claim 1 or 2, characterized in that: The described integrated room module unit is composed of a top plate, side plates and a steel structure frame. The top plate consists of a lightweight structural plate, an upper floor decorative layer, mechanical and electrical, water supply and drainage pipelines embedded in the interlayer, and a lower ceiling decorative layer. The side plates are divided into peripheral enclosure types, household separation types and internal partition types. The steel structure frame includes four structural columns, and bolt holes are reserved at both the upper and lower ends of the structural columns. The upper ends of adjacent structural columns are connected by structural beams to form the main frame beams, and parallel or grid-shaped secondary beams are arranged between the main frame beams. The lower ends of the frame columns are fixed by installation brackets.

4. The modular assembled steel structure house according to claim 1 is characterized in that: The described functional plate consists of a lightweight structural plate, an upper floor decorative layer, mechanical and electrical, water supply and drainage pipelines embedded in the interlayer, and a lower ceiling decorative layer. The coupled beams are divided into three types: coupled beams embedded in two opposite sides of the functional plate, coupled beams embedded in two adjacent sides of the functional plate, and coupled beams embedded in three sides of the functional plate. Among them, the coupled beams embedded in two opposite sides of the functional plate include two parallel coupled beams, and parallel or grid-shaped secondary beams can be arranged between the coupled beams. Corresponding bolt holes are provided at the ends and on the outer sides of the coupled beams. The coupled beams embedded in two adjacent sides of the functional plate include two coupled beams arranged in an "L" shape, and corresponding bolt holes are provided at their ends and on the outer sides. The coupled beams embedded in three sides of the functional plate include three coupled beams arranged in a "凵" shape, and corresponding bolt holes are reserved at the ends and on the outer sides of the coupled beams.

5. The modular assembled steel structure house according to claim 1 is characterized in that: The described accessory unit includes a balcony module unit, a pitched roof module unit, an integrated wall panel unit and an integrated floor slab. Among them, the integrated wall panel unit is in the form of a factory precast large panel, and realizes an embedded connection with the integrated room module unit and the coupled unit on site. The integrated floor slab is a light steel functional floor slab precast in the factory.

6. The modular assembled steel structure house according to claim 5 is characterized in that: When the building has more than three floors or is in a high-intensity seismic area, steel diagonal braces or steel plates are also provided in the integrated wall panels.

7. The modular assembled steel structure house according to any one of claims 1 to 3, characterized in that: The described integrated room module unit should follow the principle of layout from the surrounding and the periphery to the middle in a rectangular block divided by a single room or a certain building space according to the building floor plan. At the same time, the integrated room module units are distributed at intervals.

8. The modular assembled steel structure house according to claim 1 is characterized in that: For a multi-story coupled modular prefabricated steel structure house, after the unit layout and assembly of the first floor are completed, the plane unit layout and assembly of the second floor, the third floor and up to the top floor are carried out in sequence according to the above assembly method to complete the assembly of the entire multi-story coupled modular prefabricated steel structure house.

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