CN100402765C - Box-type building model and its construction method - Google Patents

Abstract

A box-type building formwork and its construction method. It is composed of wall panels, roof panels and square steel pipe columns. The wall panels include composite exterior wall panels, hollow structure wall panels, and composite frame wall panels. The feature is that there are The facing layer is equipped with a steel frame. The steel frame of the composite exterior wall panel is welded with a reinforced grid and poured with aerated concrete, and the external insulation board is installed; the steel frame of the hollow structure wall panel is welded with a reinforced grid and a light steel keel. The steel frame of the composite frame wall panel is welded with supporting rods and filled with the sound insulation core layer; the roof formwork is composed of a profiled steel bearing plate and a ceiling decorative panel, and the upper and lower sealing plates are welded at both ends of the square steel pipe column. The construction method is to transport the house model to the construction site, put together the building layers and pour concrete uniformly to form a steel and concrete composite structure. The invention can improve the modernization level of the construction industry, reduce the weight of the building model components, facilitate manufacture, transportation and hoisting, and improve the anti-seismic performance.

Description

Box-type building model and its construction method

technical field

The invention relates to a box-type building model and a construction method thereof.

Background technique

In the current civil construction projects, there are various building systems such as brick-concrete, frame, and frame-light, and the box-type building is one of the most industrialized and prefabricated, representing the direction of the modernization of the construction industry. The basic unit of the box-type building is the box house, which uses reinforced concrete as the basic material. It is made in the factory into a five-sided box-shaped house composed of four wall panels and one roof panel. . Compared with other building systems, box-type buildings have obvious advantages such as fast construction speed, short construction period, easy quality assurance and no clay bricks. Insufficient, especially box houses are heavy, and large hoisting and transportation equipment must be used, resulting in high mechanical costs, which offset the advantages of box buildings and hinder the further development of the modernization of the construction industry.

Contents of the invention

In order to overcome the above-mentioned shortcomings existing in the prior art and break through the bottleneck that restricts the modernization of the construction industry, the purpose of the present invention is to provide a box-type building model to simplify the manufacturing process of the box house, improve the quality of the project and use, and greatly reduce the cost of the product. Weight, further saving energy and reducing consumption, reducing project cost.

The technical scheme of the box-type building model of the present invention is:

A box-type building formwork is characterized in that it is composed of composite exterior wall panels, interior wall panels, roof formwork and steel pipe columns, and the composite exterior wall panels are composed of structural wall panels and external thermal insulation panels, and their shapes are uniform. It is rectangular and has openings for doors and windows. The structural wall panel is composed of a steel frame, a built-in reinforced grid frame and an aerated concrete slab. The steel frame is welded with channel steel, and the reinforced grid frame is placed in the frame and welded to the inside of the steel frame. Integrate, and the external thermal insulation panel is fixedly connected with the structural wall;

The inner wall panel has a hollow structure wall panel and a composite frame wall panel; the hollow structure wall panel is composed of a steel structure and a decorative panel, and their shape is rectangular to open a door opening; the steel structure part is composed of a steel frame, a three-dimensional steel bar The grid frame and light steel keel are welded. The steel frame is a rectangular frame welded by channel steel on the bottom and two side elevations and two valgus angle steel on the top. The two outer large surfaces of the steel structure There are multiple vertical light steel keels welded; the veneer is a lightweight thin plate, which is set on the two outer large surfaces of the steel structure, and is tightly connected with the light steel keel by adhesives and self-tapping screws. Hollow structural wall panels;

The composite frame wall panel is composed of a steel structure, a sound-insulating core layer and a facing layer, and their shape is rectangular, and a door opening is provided; the steel structure part is welded by a steel frame, an intermediate column, and a diagonal support rod ; The steel frame is a rectangular frame welded by the channel steel of the bottom surface and two side elevations and the U-shaped channel steel beam of the top surface, and the U-shaped channel steel beam is welded by two Z-shaped steels. The upper opening end is welded with a plurality of flat steel bars or connecting steel bars at equal intervals. The middle column and the oblique support rods are welded on the inner side of the steel frame with H-shaped steel and channel steel respectively; the sound-insulating core layer is set Within the steel frame; the finish layer is arranged on the two outer large surfaces of the steel structure and the sound-insulating core layer;

The roof formwork is composed of a profiled steel bearing plate and a ceiling decorative panel; the profiled steel bearing plate is a shaped product, and its two ends are respectively welded to the top surfaces of the steel frames of the wall panels on both sides. On the bottom surface of the steel bearing plate, self-tapping screws Fix the ceiling veneer to it to form the ceiling;

The steel pipe column is a square steel pipe, with sealing plates welded at both ends of the steel pipe column, wherein a round hole is opened in the center of the top sealing plate, and a keyway connection and horizontal positioning between upper and lower floors are welded at the corresponding position of the center of the bottom surface of the lower end sealing plate The diameter of the raised steel column is slightly smaller than the above-mentioned round hole. When assembling the house model, the steel tube column is vertically welded to the steel frame of the inner and outer wall panels, and the connecting plate at the top is horizontal to the top surface of the steel frame of the wall panel. Welding; the connecting plate is a right-angle L-shaped steel plate;

The box-type house model includes two forms: a single house model and an open conjoined half-width house model, and the single box-type house model is composed of an outer wall panel, three inner wall panels and four steel pipe columns , one piece of outer wallboard and three pieces of inner wallboard form a quadrilateral, four steel pipe columns are arranged at the four corners and welded together with the four wallboards, the profiled steel bearing plate of the roof mold and the top surface of the steel frame of the surrounding wallboards Weld and form a stable five-sided three-dimensional single box-type building model; the conjoined half-width house model is composed of two pieces of outer wall panels or inner wall panels connected into one, and three pieces of inner wall panels each of 1/2 longitudinal length Wall panels, two 1/2-area roof formworks and three steel pipe columns are assembled by electric welding to form an open conjoined half-width house formwork that is 1/2 deep but connected as a whole.

The building method of box type building house model of the present invention is:

A method for constructing a box-type building model, including fixing an outer wall panel and three inner wall panels around the pedestal respectively, and welding them together with four steel pipe columns at the four corners, and then welding the profiled steel bearing plate on the The top surface of the steel frame of the surrounding wall panels is connected to form a pentahedral box-type house model; the steel frames and steel pipe columns in each piece of wall panels form a three-dimensional frame through vertical welding and horizontal welding of the connecting plates, forming the entire box-type house model. The house model and the stressed skeleton of the building, and finally the ceiling is installed, and the wire pipes between the wall panels and the roof formwork are connected; it is characterized in that a combined outer wall or inner wall panel, and three pieces are each 1/2 longitudinal length The interior wall panels, two roof formworks each with a 1/2 area and three steel pipe columns are assembled by electric welding to form an open conjoined half-width house formwork that is 1/2 deep but connected as a whole; this conjoined half-width house The butt joint surface of the wall panels of the formwork is channel steel, which forms a closed steel pipe column after welding, while the butt joint surface of the top plate is welded with angle steel, and the two conjoined half-width house forms are combined so that the open sides correspond to each other and welded. Two complete and assembled monocoque house models are obtained.

The construction method of the aforementioned box-type building model, wherein the construction is divided into the following three steps:

The first step is foundation construction. Use the protruding steel column on the sealing plate at the bottom end of the square steel pipe column of the box-type house model as a key, and make it enter the round hole of the steel pipe column top sealing plate of the lower house model during hoisting to realize the keyway fit , to eliminate resonance by sliding, to achieve the purpose of vertical connection and vibration isolation;

The second step is the preparatory work before concrete pouring, including connecting the pipelines between the single house formwork and the independent formwork in series, binding the floor reinforcement mesh and reinforcement bars, and making them compatible with the reinforcement mesh in the shear wall formwork. The steel frame and the beam reinforcement in the steel channel at the top of the steel frame support wall are firmly welded; the roof formwork is temporarily supported; in order to prevent the hollow wall panel from expanding when the concrete is poured and shaken, it is clamped by pull bolts and wooden galvanized wires Twist double-sided wall panels;

The third step is to pour concrete on the floor and carry out maintenance. The concrete is pumped to the floor by the delivery pump. Firstly, the inside of the steel pipe column, the U-shaped groove of the steel frame and the cavity of the wall formwork are poured, and finally the floor slab is poured.

Cassette house formwork has various forms and specifications, and is equipped with wall panel formwork and roof panel formwork for independent use. There are the most pipes in the bathroom and kitchen. A pipe well is specially provided inside this box-type house model to facilitate the installation and replacement of vertical main pipes in the later stage, while the horizontal pipes are pre-installed in the factory during production. Inside the house model.

The aforementioned box-type building model, wherein the ceiling veneer refers to any one of gypsum particle board, fiber reinforced cement board, and light-weight boards that meet the design requirements; wherein the thermal insulation veneer and sound insulation core board refer to poly Benzene board, high-density rock wool board, cement fly ash foam core material and other thermal insulation and sound insulation materials that meet the design requirements; among them, the steel frame and steel grid can be made of ordinary steel, cold-formed thin Wall shapes and reinforcement.

In addition, the butt joint surface of the wall panels of the above-mentioned conjoined half-width house formwork is channel steel, which forms a closed steel pipe column after welding, while the joint surface of the top plate is welded with angle steel. After pouring concrete on site, steel pipe concrete columns and steel-concrete columns are formed respectively Combined dark beams. In order to ensure the overall stability of the house formwork during hoisting and transportation, a temporary connecting beam is welded at the bottom fillet of the butt joint surfaces of the three half-width wall formworks. When the conjoined half-width house formwork is transported, its 1/2 length forms the width of the car body to effectively solve the limitation of the transportation width. When installing on the construction site, only two conjoined half-width house forms need to be combined together to make The open surfaces correspond to each other and are welded to obtain two complete and assembled single box-type house models.

The beneficial effects of the present invention are:

1. Fast production speed: The box-type building model adopts steel frame welding and lightweight composite board installation technology, which can double the work efficiency and greatly shorten the processing and production time.

2. High product quality: The box-type building formwork replaces precast concrete with industrially produced plates. The product specifications, precision, toughness and firmness are greatly improved, and its surface smoothness is better than manual plastering.

3. One mold with multiple functions: The integrated box-type building formwork plays the role of formwork and support when concrete is poured on site, and after pouring is completed, it is integrated with concrete and becomes a permanent part of the entire building. Among them, the steel frame and steel mesh in the house formwork are combined with concrete to form a steel-concrete composite structure and a steel pipe concrete composite structure, while the lightweight composite wall panels with thermal insulation and sound insulation functions become the envelope and partition of the building. wall.

4. Energy saving and consumption reduction: it completely cancels clay bricks, which can save land resources to the greatest extent and reduce energy consumption.

5. Reduce mechanical costs: the box-type building model made of steel frame and lightweight composite board, its product weight is only 1/3 to 1/4 of the reinforced concrete box house, thus avoiding the use of large-tonnage cranes and transportation equipment , greatly reducing the cost of machinery and construction costs. Moreover, the box-type building formwork can be completed in the factory, and the wall panel formwork and roof formwork can also be transported to the construction site for assembly, further reducing transportation costs.

6. The construction is simple: the use of box-type building formwork for residential buildings and other civil building construction is simpler and faster than any current construction method. It only needs to hoist the box-type house formwork in place and connect it according to the drawings. Then pour concrete on the top plate, and the construction period is only 1/3 of the conventional construction method, or even shorter.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawings and examples.

Fig. 1 is an exploded perspective view of a single box-type house model of an embodiment of the present invention

Fig. 2 is an exploded perspective view of the conjoined half-width house model of the embodiment of the present invention

Fig. 3 a is the assembly plane view of the single box type house mold of the embodiment of the present invention

Fig. 3b is an assembly plan view of the conjoined half house model of the embodiment of the present invention

Fig. 4 is a three-dimensional schematic diagram of the assembly and construction of the box-type house formwork at the construction level of the whole building according to the embodiment of the present invention

Explanation of symbols in the figure:

10 Composite exterior wall panels 11 Structural wall panels 12 Steel frame

13 Reinforced grid frame 14 Aerated concrete slab 15 Lightweight insulation core layer

16 Finishing layer 17 Special pendant 18 External thermal insulation decorative panel

20 Composite frame wall panel 21 U-shaped channel steel beam 22 Intermediate steel column

23 Diagonal support member 24 Steel frame 25 Sound insulation core layer

26 finishing layers

30 hollow structure wall panel 31 steel frame 32 light steel keel

33 three-dimensional reinforced grid 34 decorative panels

40 Roof formwork 41 Profiled steel bearing plate 42 Ceiling veneer

50 square steel pipe column 51 column top sealing plate 52 column bottom sealing plate

53 connecting plate

60 conjoined exterior wall panels 71 channel steel columns

70 Half Width Composite Frame Wall Panel

80 semi-width hollow structure wall panels

90 conjoined interior wall panels

102 angle steel concealed beam

A Single Box Model B Independent Panel Wall Model C Bathroom Model

AA conjoined half house mold D independent roof mold E balcony mold

AA' conjoined half-width house model T stairwell house model F binding steel bars on site

AE single unit formwork G cast-in-place concrete LJ temporary connection bottom beam

AC single bathroom room model

Detailed ways

Example 1:

As shown in Figure 1, box-type building house formwork of the present invention, it is made up of composite exterior wall panel 10, complex box frame wall panel 20 or hollow structure 30, roof formwork 40 and steel pipe column 50: described composite exterior wall panel 10 is made up of Structural wall panels 11 and external thermal insulation decorative panels 18 are formed, and their shapes are all rectangular and have door and window openings. The width and height of the structural wall panel 11 are respectively equal to the designed interior clear width and clear height. The composite exterior wall panel 10 is composed of a steel frame 12 , a built-in steel grid 13 and an aerated concrete slab 14 . The steel frame 12 is welded with channel steel, the steel grid frame 13 is placed in the steel frame and welded together with the inside of the steel frame, and the aerated concrete slab 14 is made by pouring slurry into the frame and curing. The external thermal insulation decorative panel 18 is fixedly connected with the structural wall panel 11, and a special hanging piece 17 for connecting and fixing is provided on the back side thereof.

The interior wall panel includes a hollow structural wall panel 30 and a composite frame wall panel 20; the hollow structural wall panel 30 is composed of a steel structure and a decorative panel 34, and their shapes are rectangular and door openings are provided as required, and their length and height Respectively equal to the designed indoor net length and net height; the steel structure part is made of steel frame 31, three-dimensional steel grid frame 33, and light steel keel welding 32, and steel frame 31 is made of grooves on the bottom surface and two side facades A rectangular frame welded by steel and two valgus angle steels on the top surface. The three-dimensional steel grid frame 33 is placed in the steel frame and welded together with the inner side of the steel frame. There are multiple welds on the two outer large surfaces of the steel structure. Vertical light steel keel 32; the decorative panel 34 is a lightweight thin plate, which is arranged on the two outer large surfaces of the steel structure, and is tightly connected with the light steel keel 32 by adhesives and self-tapping screws to form a hollow Structural wall panel 30 can install electrical conduit and junction box in the middle cavity according to the design.

The composite frame wall panel 20 is composed of a steel structure, a sound-insulating core layer 25 and a facing layer 26. Their shapes are rectangular, and door openings are provided as required, and their length and height are respectively equal to the designed indoor net length and net height. The steel structure part is welded by the steel frame 24, the middle steel column 22, and the oblique support rods 23; A rectangular frame welded by the beam 21, the U-shaped channel steel beam 21 is formed by butt welding of two Z-shaped steels, and a plurality of flat steels or connecting steel bars are welded at equal intervals on the upper open end, and the middle steel column 22 and oblique support rods 23 are set as required, and are welded on the inner side of the steel frame 24 with H-shaped steel and channel steel respectively; according to the design, wire pipes and junction boxes are installed in the steel frame 24 in advance, and the sound insulation core layer 25 is arranged on the steel frame 24. Inside the frame; the finish layer 26 is arranged on the two outer large surfaces of the steel structure and the sound-insulating core layer 25 .

The roof formwork 40 is made up of a profiled steel bearing plate 41 and a ceiling decorative panel 42, the length of which is the designed interior width; Face-to-face welding, the profiled steel bearing plate 41 is combined with it to form a composite floor slab after concrete is poured on site, and the ceiling decorative panel 42 is fixed to it with self-tapping screws on the bottom surface of the steel bearing plate to form a ceiling. In the cavity of the two-layer board, install the wire duct and junction box according to the design.

The steel pipe column 50 is a square steel pipe, the column length of which is equal to the designed floor height, and sealing plates are welded at both ends of the steel pipe column, wherein a round hole is opened in the center of the top sealing plate 51 for hoisting and pouring of concrete. The corresponding position of the center of the bottom surface of the sealing plate 52 is welded with a raised steel column with a diameter slightly smaller than the circular hole for keyway connection and horizontal positioning between the upper and lower floors. When assembling the house model, the square steel pipe column 50 is welded vertically with the steel frame 12, 24 of the inner and outer wall panels, and is welded horizontally with the top surface of the wall panel steel frame by the connecting plate 53 at its top; the connecting plate 53 is a right angle Made of L-shaped steel plate.

The box-type house model, each single box-type house model is composed of an outer wall board 10, three inner wall boards 20 or 30 and four square steel pipe columns 50, one outer wall board and three inner wall boards Enclosed in a quadrangular shape, the four-plate steel pipe column is divided into four corners and welded into one body with four wall panels. The profiled steel bearing plate 41 of the roof formwork 40 is welded to the top surface of the steel frame of the surrounding wall panels to form a stable pentahedron box. single building model.

Each single box-type building model A is made up of an exterior wall panel 10, three interior wall panels 20 and 30, a roof formwork 40 and four steel pipe columns 50; its construction method is: the exterior wall panel 10, the interior The wall panels 20 or 30 are respectively fixed around the pedestal, and welded together with the four square steel tube columns 50 at the four corners, and then the profiled steel bearing plate 41 is welded on the top surface of the steel frame of the surrounding wall panels to form a pentahedron box type house model; the steel frame and square steel pipe columns in each piece of wall panels are formed by vertical welding and horizontal welding of connecting plates to form a three-dimensional frame, which constitutes the entire box-type house model and the stressed skeleton of the building, and finally installs the ceiling veneer 42, connect the wire conduits between each wallboard and roof formwork. As shown in Figure 3, the box-type house formwork has various forms and specifications, and is equipped with wall panel form B and roof panel form D for independent use as shown in Figure 3a.

Example 2:

The conjoined half-width house model is shown in Figure 2 and Figure 3b. When a complete single-box building model is not allowed to be wide enough due to the restrictions of traffic and transport vehicles, the two-unit model is used to divide horizontally. Assembled by the method, it is characterized in that it is composed of two connected external wall panels 60 or internal wall panels 90, three half-width composite frame wall panels 70 or half-width structural wall panels 80 each of which is 1/2 the longitudinal length. and two roof formworks 40 each with a 1/2 area and three square steel pipe columns 50 are assembled into an open-type conjoined half-width house formwork AA or AA' that is 1/2 deep but connected into one by electric welding. The butt joint surface of the wall panels of this conjoined half-width house formwork is channel steel 71, which forms a closed steel pipe column after welding, while the joint surface of the top plate is welded with angle steel concealed beams 102, and after pouring concrete on site, steel pipe concrete columns and steel-concrete columns are formed respectively. Combined dark beams. In order to ensure the overall stability of the house formwork during hoisting and transportation, a temporary connecting beam LJ is welded at the bottom fillet of the butt joint surfaces of the three half-width wall formworks. When the conjoined half-width house model AA is transported, its 1/2 length forms the width of the car body to effectively solve the limitation of the transportation width. When installing on the construction site, only two conjoined half-width house models AA and AA' Combining them together so that their open faces correspond to each other and being welded, two complete and assembled single box-type house models can be obtained.

Example 3:

The connection and assembly methods of the box-type building formwork at the construction site are shown in Figure 3a and Figure 3b. When the number of rooms in the same row is odd or it is necessary to set up a separate hall, it is shown in Figure 3a. Assembled by the connection method, the installation is to separate the two single box-type house forms A and A, and connect the middle with an independent wall formwork B and an independent roof formwork D to form a new room in the middle. This method can not only avoid the adjacent wall The overlapping of bodies can reduce the unit cost, and can create a large open room. When the number of rooms in the same row is an even number or the room model is not allowed to be wide enough due to the restrictions of traffic and transport vehicles, as shown in Figure 3b, a conjoined half-width room model is used for docking. The half-width house forms AA and AA' are closely arranged so that their open faces correspond to each other and welded, thus forming two complete box-type house models A and A connected in parallel. In the plane combination of the box-type house model, the balcony formwork can also be used to block the outer wall, and the independent wall panel formwork can be used to divide the hall and room, which can not only achieve twice the result with half the effort, but also greatly improve the transportation efficiency and further reduce the cost.

Example 4:

The construction process of this box-type building model when it is used to build a multi-storey building is shown in Figure 4. First, the foundation construction is carried out, and after completion, it enters the main construction stage. First, the single box-type house model A and the conjoined Half-width room model AA, single-unit connected room model AE, single-unit bathroom model AC, toilet room model C, balcony model E, stairwell room model T, independent panel wall formwork B, and independent roof formwork D are transported from the factory to On the construction site, hoist it in place according to the position marked on the drawing, and then use electric welding to connect the room formwork horizontally. When the box-type house model is used for the vertical connection between the upper and lower floors, rigid welding is not used, but a sliding vibration-isolation connection is used. Make it enter the round hole of the top sealing plate of the lower room formwork column at the same time, realize the keyway fit, eliminate the resonance by sliding, and achieve the purpose of vertical connection and shock isolation. The second step is to prepare for concrete pouring, including connecting the pipelines between the single house formwork and the independent formwork in series, binding the floor reinforcement mesh and reinforcement bars, and making them compatible with the reinforcement mesh in the shear wall formwork. The beam reinforcement in the steel channel at the top of the frame and the frame support wall is firmly welded; the roof formwork is temporarily supported; in order to prevent the hollow wall plate from expanding when the concrete is poured and vibrated, the strands are clamped by pull bolts and wooden galvanized wires Tight double-sided wall panels. The third step is to pour the concrete on the floor and carry out maintenance. The concrete is pumped to the floor by the delivery pump. First, the steel pipe, the U-shaped groove of the steel frame and the cavity of the wall form are poured, and finally the floor slab is poured. The solidified concrete is combined with the formwork of each part to form concrete-filled steel tube columns, steel-concrete composite beams, reinforced concrete shear walls, and ribbed composite floors, respectively, and so on, until the construction of all floors is completed, as shown in Figure 4 Show. The last stage of on-site construction is roof insulation and waterproofing, vertical water and electricity main pipeline connection in the building, door and window installation, and decoration work. Since most of the work has been completed in the factory, these post-work on site become very simple and fast.

Claims (3)

1. a box type building house formwork, is characterized in that, it is made up of composite exterior wall panel, interior wall panel, top board formwork and steel pipe column, and described composite exterior wall panel is made up of structural wallboard and exterior insulation veneer, its The shapes are all rectangular and have openings for doors and windows. The structural wall panels are composed of steel frames, built-in reinforced grids and aerated concrete slabs. The steel frames are welded with channel steel. The inner side is welded into one body, and the outer thermal insulation panel is fixedly connected with the structural wall; The inner wall panel has a hollow structure wall panel and a composite frame wall panel; the hollow structure wall panel is composed of a steel structure and a decorative panel, and their shape is rectangular to open a door opening; the steel structure part is composed of a steel frame, a three-dimensional steel bar The grid frame and light steel keel are welded. The steel frame is a rectangular frame welded by channel steel on the bottom and two side elevations and two valgus angle steel on the top. The two outer large surfaces of the steel structure There are multiple vertical light steel keels welded; the veneer is a lightweight thin plate, which is set on the two outer large surfaces of the steel structure, and is tightly connected with the light steel keel by adhesives and self-tapping screws. Hollow structural wall panels; The composite frame wall panel is composed of a steel structure, a sound-insulating core layer and a facing layer, and their shape is rectangular, and a door opening is provided; the steel structure part is welded by a steel frame, an intermediate column, and a diagonal support rod ; The steel frame is a rectangular frame welded by the channel steel of the bottom surface and two side elevations and the U-shaped channel steel beam of the top surface, and the U-shaped channel steel beam is welded by two Z-shaped steels. The upper opening end is welded with a plurality of flat steel bars or connecting steel bars at equal intervals. The middle column and the oblique support rods are welded on the inner side of the steel frame with H-shaped steel and channel steel respectively; the sound-insulating core layer is set Within the steel frame; the finish layer is arranged on the two outer large surfaces of the steel structure and the sound-insulating core layer; The roof formwork is composed of a profiled steel bearing plate and a ceiling decorative panel; the profiled steel bearing plate is a shaped product, and its two ends are respectively welded to the top surfaces of the steel frames of the wall panels on both sides. On the bottom surface of the steel bearing plate, self-tapping screws Fix the ceiling veneer to it to form the ceiling; The steel pipe column is a square steel pipe, with sealing plates welded at both ends of the steel pipe column, wherein a round hole is opened in the center of the top sealing plate, and a keyway connection and horizontal positioning between upper and lower floors are welded at the corresponding position of the center of the bottom surface of the lower end sealing plate The diameter of the raised steel column is slightly smaller than the above-mentioned round hole. When assembling the house model, the steel tube column is vertically welded to the steel frame of the inner and outer wall panels, and the connecting plate at the top is horizontal to the top surface of the steel frame of the wall panel. Welding; the connecting plate is a right-angle L-shaped steel plate; The box-type house model includes two forms: a single house model and an open conjoined half-width house model, and the single box-type house model is composed of an outer wall panel, three inner wall panels and four steel pipe columns , one piece of outer wallboard and three pieces of inner wallboard form a quadrilateral, four steel pipe columns are arranged at the four corners and welded together with the four wallboards, the profiled steel bearing plate of the roof mold and the top surface of the steel frame of the surrounding wallboards Weld and form a stable five-sided three-dimensional single box-type building model; the conjoined half-width house model is composed of two pieces of outer wall panels or inner wall panels connected into one, and three pieces of inner wall panels each of 1/2 longitudinal length Wall panels, two 1/2-area roof formworks and three steel pipe columns are assembled by electric welding to form an open conjoined half-width house formwork that is 1/2 deep but connected as a whole. 2. A method for constructing a box-type building model, comprising fixing an outer wall panel and three inner wall panels around the pedestal respectively, and welding them together with four steel pipe columns at the four corners, and then attaching the profiled steel bearing plate It is welded on the top surface of the steel frame of the surrounding wall panels and connected to form a pentahedral box-type house model; the steel frames and steel pipe columns in each piece of wall panels form a three-dimensional frame through vertical welding and horizontal welding of the connecting plates, forming the whole The box-type house formwork and the stress-bearing skeleton of the building, and finally the ceiling is installed, and the wire pipes between the wall panels and the roof formwork are connected; The longitudinal length of the inner wall panels, two roof formworks of 1/2 area each, and three steel pipe columns are assembled by electric welding to form a 1/2 deep but connected one-piece half-width house form; The butt joint surface of the wall panels of the half-width house formwork is channel steel, which is welded to form a closed steel pipe column, while the joint face of the top plate is welded with angle steel, and the two conjoined half-width house forms are combined so that the open sides correspond to each other and are welded. Two complete and assembled single box-type house models can be obtained. 3. the construction method of box-type building model according to claim 2, is characterized in that, its construction is divided into following three steps: The first step is foundation construction. Use the protruding steel column on the sealing plate at the bottom end of the square steel pipe column of the box-type house model as a key, and make it enter the round hole of the steel pipe column top sealing plate of the lower house model during hoisting to realize the keyway fit , to eliminate resonance by sliding, to achieve the purpose of vertical connection and vibration isolation; The second step is the preparatory work before concrete pouring, including connecting the pipelines between the single house formwork and the independent formwork in series, binding the floor reinforcement mesh and reinforcement bars, and making them compatible with the reinforcement mesh in the shear wall formwork. The steel frame and the beam reinforcement in the steel channel at the top of the steel frame support wall are firmly welded; the roof formwork is temporarily supported; in order to prevent the hollow wall panel from expanding when the concrete is poured and shaken, it is clamped by pull bolts and wooden galvanized wires Twist double-sided wall panels; The third step is to pour concrete on the floor and carry out maintenance. The concrete is pumped to the floor by the delivery pump. Firstly, the inside of the steel pipe column, the U-shaped groove of the steel frame and the cavity of the wall formwork are poured, and finally the floor slab is poured.

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