CN111561095A - Connection structure and installation method of sloping roof of box-board assembled steel structure building - Google Patents

Abstract

The invention provides a connection structure and an installation method of a box-board-assembled steel structure building sloping roof. The connection structure of the box-board-assembled steel structure building sloping roof includes an outer connector and an inner connector, wherein the outer connector has The double-roof external connector and the single-roof-wall external connector respectively connect two roof panels, as well as the roof panel and the wall panel from the outside; the inner connector has a double-roof internal connector and a single-roof- The inner connecting piece of the wall and the inner connecting piece of the three-roof cover respectively connect the two-roof cover plates, the roof board and the wall body board, and the three-roof cover plate from the inner side, and the outer connecting piece and the inner connecting piece are connected and fixed. The connection structure of the sloping roof of the box-board-assembled steel structure building provided by the invention can not only realize the reliable connection of the roof panels, but also has the advantages of simple structure, convenient construction and low cost, can adapt to the roof connection of different slopes, and can be widely used in In the box-panel-assembled steel structure.

Description

Connection structure and installation method of sloping roof of box-board assembled steel structure building

technical field

The invention generally relates to the field of building structure engineering, mainly relates to a connection structure and an installation method of a sloping roof of a box-board assembled steel structure building, and can be specifically applied to an assembled steel structure building.

Background technique

In recent years, box-plate prefabricated steel structures have been widely used in high-rise buildings. The design of this building structural system is inspired by the superstructure of ships. It is mainly composed of stiffeners and steel plates. This structural system is simple in structure and light in weight. It has high bearing capacity and strong energy consumption capacity, which can meet the mechanical performance requirements of high-rise buildings. At the same time, the structural system adopts the concept of prefabrication, and the box panels are all prefabricated in the factory, which only needs to be assembled on site, which is not only convenient for construction, but also efficient in installation. It is a new type of prefabricated steel structure system, which greatly shortens the construction time.

The box-board prefabricated steel structure house adopts the above structural system, which can not only meet the mechanical performance requirements of the house, but also realize rapid installation and improve installation efficiency. However, the residential roof of this structural system is made of box-shaped steel plates, and the connection between the roofs is complicated. Moreover, the connection of the roof system of this new type of steel structure system has no reference. How to achieve reliable and closed connection Good roof connections are critical.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to propose a connection structure of a box-board assembled steel structure building sloping roof system, which can not only realize reliable connection of roof panels, but also has simple structure, convenient construction and low cost. It can adapt to roof connections of different angles, and can be widely used in box-board assembled steel structures.

The technical scheme of the present invention is as follows:

The invention first provides a connection structure of a box-board-assembled steel structure building with a sloping roof. The box-board-assembled steel structure building includes a roof board and a wall board, and the roof boards are connected and fixed to form a sloping roof. The body plate and the sloping roof are connected and fixed to form a box-plate prefabricated steel structure building; including external connectors and internal connectors, of which:

The outer connector has:

The double-roof outer connector is arranged on the outside of the ridge where the two adjacent roof panels intersect, is fixed with the two roof panels, and connects the two roof panels from the outside;

The single roof-wall external connector is arranged on the outside of the eaves where the adjacent roof panels and wall panels intersect, and is fixed with the roof panels and wall panels, and connects the roof panels and wall panels from the outside;

The inner connector has:

The double-roof inner connecting piece is arranged inside the ridge where the two adjacent roof panels intersect, and is fixed with the two roof panels, connecting the two roof panels from the inner side;

The single roof-in-wall connector is arranged inside the eaves where the adjacent roof panels and wall panels intersect, fixed with the roof panels and wall panels, and connects the roof panels and wall panels from the inside;

The inner connecting piece of the three-roof cover is arranged inside the ridge where the adjacent three-roof cover plates intersect, and is fixed with the three-roof cover plate, and connects the three-roof cover plate from the inner side;

In addition, the outer connector and the inner connector are connected and fixed.

As a specific improvement, both the roof panel and the wall panel adopt a box-shaped steel plate structure composed of panels and stiffeners.

As a specific improvement, angle steel is used for the external connection, and the angle steel is covered at each ridge and eaves, and is welded and sealed with the roof panel and the wall panel.

As a specific improvement, the inner connecting piece is welded by rectangular thin steel plates, including the bottom plate, the end plate and the reinforcing plate. It is welded vertically to the base plate for connecting external connectors.

As a specific improvement, the inner connecting piece of the double roof is a double stiffening rib connecting piece, the reinforcing plate is arranged in the center of the bottom plate, and there are two end plates, which are symmetrically arranged at both ends of the bottom plate with respect to the reinforcing plate, and are used for connecting with the adjacent two The stiffeners of the roof panel are welded and fixed; the single roof-wall connector has the same structure and is used for welding and fixing with the stiffeners of the adjacent roof panels and wall panels.

As a specific improvement, the three-roof inner connecting piece is a three-stiffening rib connecting piece, the reinforcing plate is arranged in the center of the bottom plate, and there are three end plates, two of which are symmetrically arranged at both ends of the bottom plate with respect to the reinforcing plate, and the other is arranged on the bottom plate. In the vertical direction of the connecting line of the two pieces, it is used for welding and fixing with the stiffening ribs of the adjacent three-roof cover plates.

As a specific improvement, the size of the end plate is larger than the cross-sectional dimension of the stiffener to which it is connected, and the end plate is welded and fixed to the stiffener to which it is connected.

As a specific improvement, the height of the reinforcing plate extends to the outer connecting piece and is fixed by welding.

As a specific improvement, the inclination angle of the end panels is determined according to the angle between the two adjacent roof panels or the angle between the adjacent roof panels and wall panels.

The present invention further provides a method for installing a sloping roof of a box-board-assembled steel structure building, comprising the following steps:

S10: At the single roof-wall connection, at the eaves outside the roof, fasten the angle steel to the roof panel and the wall panel, and then weld the angle steel to the roof panel and the wall panel; At the eaves on the inner side of the cover, the end plates of the double-stiffened rib connector are welded to the panels and stiffeners of the roof panel and the wall panel respectively, and the reinforcing plate of the double-stiffened rib connector is welded to the angle steel on the outside of the roof;

S20: Where the double roof is connected to the horizontal ridge, on the outside of the roof at the horizontal ridge, fasten the angle steel to the roof plate, and then weld and fix the angle steel and the roof plate; The end plate of the double-stiffened rib connector is welded with the panels and stiffeners of each roof panel, and the reinforcing plate of the double-stiffened rib connector is welded with the angle steel on the outside of the roof;

S30: At the intersection of the three roof ridges, on the outside of the roof at the inclined roof ridge, the end of the angle steel is cut, then fastened to the roof plate, and the angle steel is assembled at the intersection of the three roof ridges and fixed with the roof plate by welding; On the inner side of the roof at the sloping ridge, the end plates of the three-stiffener connectors are welded to the panels and stiffeners of each roof plate, and the reinforcing plates of the three-stiffener connectors are welded to the angle steel on the outside of the roof;

S40: At the intersection of double roof and double walls, on the outside of the wall, fasten the angle steel closely to the wall-wall connection, then weld the angle steel to the panel and stiffener of the wall panel, and extend the sloped roof ridge and The angle steel at the connection of the single roof-wall to the intersection of the double roof and the double wall shall be welded as a whole.

The beneficial effects of the present invention relative to the prior art are as follows: the present invention provides a connection structure of a box-board-assembled steel structure building sloping roof, which can not only realize reliable connection of roof panels, but also has simple structure, convenient construction and low cost. , It can adapt to the roof connection of different slopes, and can be widely used in box-board assembled steel structures. Specifically, it has at least the following practical effects:

(1) The outer connector and inner connector are respectively welded to the roof panel, the panel of the wall panel and the stiffener from the outer and inner sides to enhance the integrity of the entire roof system from the outer and inner sides, and improve the assembly of the box panel. The strength and stability of the roof system of the steel structure building;

(2) The outer connector and the inner connector are also connected and fixed to each other, which ensures the safety and reliability of the connection of each component;

(3) The outer connector is welded with angle steel, which is covered at each ridge and eaves, and is sealed and welded with the roof panel and wall panel, which can not only enhance the integrity of the entire roof system, but also prevent the roof from generating water leakage;

(4) The inner connecting piece adopts the stiffening rib connecting piece welded by rectangular thin steel plate, which has simple structure and convenient installation, and can be applied to L-shaped stiffening rib and T-shaped stiffening rib box plate;

(5) By processing the end plates of the stiffener connectors into different angles, it can be applied to roof systems with different slopes;

(6) Both the outer connector and the inner connector are prefabricated in the factory, and only need to be installed on site, which greatly reduces the construction time and construction difficulty.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention, so there is no technical The substantive meaning above, any modification of the structure, the change of the proportional relationship or the adjustment of the size should still fall within the technical content disclosed in the present invention without affecting the effect and the purpose that the present invention can produce. within the range that can be covered.

FIG. 1 is a schematic diagram of the connection of the outer side of the roof according to an embodiment of the present invention;

2 is a schematic diagram of a double stiffener connector according to an embodiment of the present invention;

3 is a schematic diagram of a three-stiffener connector according to an embodiment of the present invention;

4 is a schematic diagram of a roof connection at the intersection of three roof ridges according to an embodiment of the present invention;

5 is a schematic diagram of the connection at the horizontal ridge of the double roof according to an embodiment of the present invention;

6 is a schematic diagram of a single roof-wall connection according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a connection at the intersection of a double roof and a double wall according to an embodiment of the present invention.

The accompanying drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application, but do not constitute a limitation to the present invention. The meanings of the symbols in the figure are:

Ⅰ—Intersection of three roof ridges, Ⅱ—Double roof connecting horizontal ridge, Ⅲ—Single roof-wall connection, Ⅳ—Double roof—Double wall intersection, 1a—Double roof external connecting piece 1, 1b—Double-roof external connector 2, 1c—Double-roof external connector 3, 1d—Single roof-Wall external connector 1, 1e—Single roof-Wall external connector 2, 2a—End plate , 2b - bottom plate, 2c - reinforcing plate, 3a - roof plate one, 3b - roof plate two, 3c - roof plate three, 4a - wall plate one, 4b - wall plate two, 5 - angle steel.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

In the description of the present invention, it is to be understood that the terms "comprising/comprising", "consisting of" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a product, device, A process or method includes not only those elements, but may also include other elements, if desired, not expressly listed, or elements inherent to the product, device, process, or method. Without further limitation, an element defined by the phrases "comprising/comprising", "consisting of" does not preclude the presence of additional elements in the product, device, process or method comprising said element same elements.

It is also to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc. indicate orientation or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device, component or structure referred to must have a specific orientation, be configured in a specific orientation or The operation should not be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Referring to FIG. 1, the present invention first provides a connection structure of a sloping roof of a box-board-assembled steel structure building. The box-board-assembled steel structure building takes a box-board-assembled steel structure house as an example, including a roof board and a wall. The roof panel includes a roof panel 1 3a, a roof panel 2 3b, and a roof panel 3 3c. The roof panel 1 3a and the roof panel 2 3b are longitudinal roof panels in this embodiment, and the roof panel 3 3c is a horizontal roof panel; the wall panel includes a wall panel 1 4a, a wall panel 2 4b, the wall panel 1 4a is a longitudinal wall panel, and the wall panel 2 4b is a horizontal wall panel. The sloping roof is formed by connecting and fixing between them, and the wall panel and the sloping roof are connected and fixed to form a box-board assembled steel structure building.

As shown in FIGS. 4-6 , in the present invention, both the roof panel and the wall panel adopt a box-shaped steel plate structure composed of panels and stiffeners, thus forming a box-panel assembled steel structure building.

As an improvement of the present invention, the connection structure of the sloping roof includes an outer connector and an inner connector, wherein:

The outer connector has:

The double-roof outer connecting piece is arranged on the outside of the ridge where the two adjacent roofing boards intersect, and is fixed to the two roofing boards, connecting the two roofing boards from the outside; see Figure 1, the double-roofing outer connecting piece 1a connects the roofs The first plate 3a and the second roof plate 3b, the double-roof outer connecting piece 2 1b connects the second roof plate 3b and the third roof plate 3c, and the double-roof outer connecting piece 3 1c connects the roof plate 1 3a and the third roof plate 3c.

Single roof-wall external connector, set on the outside of the eaves where the adjacent roof panels and wall panels intersect, fixed with the roof panels and wall panels, and connects the roof panels and wall panels from the outside; see Figure 1 , Figure 7, a single roof - external wall connector 1d connects the roof panel 1 3a and the wall panel 1 4a, and the single roof - external wall connector 2 1e connects the roof panel 3c and the wall panel 2 4b.

The middle and outer connecting pieces of the invention are welded by angle steel, and the angle steel is covered at each roof ridge and eaves, and is sealed and welded with the roof plate and the wall body plate. In this way, the integrity of the entire roof system is enhanced on the outside of the roof, and water leakage is also prevented from occurring in the roof. The angle steel is prefabricated at the factory and only needs to be assembled on site.

The inner connector has:

The double-roof inner connecting piece is arranged inside the ridge where the two adjacent roof panels intersect, and is fixed with the two roof panels to connect the two roof panels from the inner side. Referring to Figure 2, Figure 5, Figure 6, the present invention provides a specific double-roof inner connecting piece structure, which is a double stiffening rib connecting piece. The plate 2a has two pieces, which are symmetrically arranged on the two ends of the bottom plate 2b with respect to the reinforcing plate 2c, and are used for welding with the panels and the stiffeners of the two adjacent roof panels (the first roof panel 3a and the second roof panel 3b in the figure) fixed.

A single roof-in-wall connecting piece is arranged inside the eaves where the adjacent roof panels and wall panels intersect, is fixed with the roof panels and the wall panels, and connects the roof panels and the wall panels from the inside; The structure of the single roof-wall inner connector is the same as that of the double roof inner connector, see Figure 6, and is used to connect with adjacent roof panels and wall panels (in the figure, roof panel-3a and wall panel-4a are shown in the figure). ) of the panels and stiffeners are fixed by welding.

The three-roof inner connecting piece is arranged inside the ridge where the adjacent three-roof slabs intersect, is fixed with the three-roof slab, and connects the three-roof slabs from the inside. Referring to Figure 3 and Figure 4, the present invention provides a specific three-roof inner connecting piece structure, which is a three-stiffening rib connecting piece. The reinforcing plate 2c is arranged in the center of the bottom plate 2b for connecting the outer connecting piece. There are three pieces, two of which are symmetrically arranged on both ends of the bottom plate 2b with respect to the reinforcing plate 2c, and the other piece is arranged in the vertical direction of the connecting line between the two pieces, which is used for connecting with the adjacent three roof decking boards (the roof decking board 1 3a in the figure). , The panels and stiffeners of the second roof panel 3b and roof panel 3 3c) are welded and fixed.

In the invention, the roof panel and the wall panel are welded and fixed from the outside of the roof through the outer connector, and welded and fixed from the inside of the roof through the inner connector, and the inner connector is welded with the panels and stiffeners of the roof panel and the wall panel. At the same time, the outer connector and the inner connector are also connected and fixed to each other, which improves the strength and stability of the box-board-assembled steel structure building roof system, ensures the safety and reliability of the connection of each component, and prevents accidental super-large loads (such as wind loads). ) brings security risks.

As a specific improvement, the size of the end plate 2a is larger than the cross-sectional dimension of the stiffening rib to which it is connected, so as to facilitate the welding and fixing of the end plate and the stiffening rib to which it is connected.

As a specific improvement, the height of the reinforcing plate 2c extends to the outer connecting piece and is welded and fixed therewith.

As a specific improvement, the inclination angle of the end panel 2a is determined according to the angle between the two adjacent roof panels or the angle between the adjacent roof panel and the wall panel, which is applicable to roof systems with different slopes.

The present invention also relates to a method for installing a sloping roof of a box-board-assembled steel structure building, which is completed by the following steps:

Referring to Figure 1, Figure 6, Figure 7, installation of single roof-wall joint III: at the eaves on the outside of the roof, fasten the angle steel of the single roof-wall external connection piece - 1d to the roof. Plate one 3a and wall plate one 4a, then weld the angle steel with roof plate one 3a and wall plate one 4a; at the eaves on the inner side of the roof, connect the end plates 2a of the double stiffener connectors to the roof respectively. The panels and stiffeners of plate one 3a and wall plate one 4a are welded, and the reinforcing plate 2c of the double stiffener connector is welded to the angle steel on the outside of the roof;

Referring to Figure 1 and Figure 5, installation II at the horizontal ridge of the double roof: on the outside of the roof at the horizontal ridge, fasten the angle steel of the double roof outer connector-1a to the roof panel-3a and the roof. Plate two 3b, and then weld the angle steel and the roof plate to fix it; on the inner side of the roof at the horizontal ridge, connect the end plate 2a of the double stiffener connector to the panels and stiffeners of the roof plate one 3a and the roof plate two 3b Welding, the reinforcing plate 2c of the double stiffener connection is welded with the angle steel on the outside of the roof;

Referring to Figure 1 and Figure 4, installation I at the intersection of the three roof ridges: on the outside of the roof at the inclined roof ridge, connect the double roof outer connector 1a, the double roof outer connector 2 1b, and the double roof outer connector 3 1c The end of the angle steel is cut, and then tightly fastened to the roof plate one 3a, the second roof plate 3b and the third roof plate 3c, and the angle steel is assembled at the intersection of the three roof ridges and fixed with the roof plate by welding; On the inside of the roof at the ridge, the end plate 2a of the three-stiffener connector is welded to the panels and stiffeners of each roof panel, and the reinforcing plate 2c of the three-stiffener connector is welded to the horizontal angle steel on the outside of the roof;

Referring to Figure 1 and Figure 7, installation at the intersection of double roof and double wall IV: on the outside of the wall, fasten the angle steel 5 to the wall-wall connection, and then attach the angle steel to the panel and stiffener of the wall panel Weld and fix, and extend the angle steel at the sloping ridge and the single roof-wall connection to the intersection of the double roof and the double wall, and weld the four into a whole.

To sum up, the connection form of the box-board assembled steel structure building sloping roof system of the present invention is simple in structure and convenient in construction, can adapt to the connection of roofs with different slopes, the connection nodes are safe and reliable, and the integrity of the entire roof is increased. , making the entire roof system safe and reliable. The proposal of the connection form of the box-board prefabricated steel structure residential sloping roof system not only solves the problem of roof connection, but also promotes the application of the box-board prefabricated steel structure, which is of great significance to promoting the development of steel structure housing in my country.

By now, those skilled in the art will recognize that, although exemplary embodiments of the present invention have been illustrated and described in detail herein, it is still possible to directly follow the present disclosure without departing from the spirit and scope of the present invention. Numerous other variations or modifications can be identified or derived consistent with the principles of the present invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. The connection structure of the sloping roof of the box-board assembled steel structure building. The box-board assembled steel structure building includes a roof board and a wall board. The roof boards are connected and fixed to form a sloping roof, and the wall board and the slope The roof is connected and fixed to form a box-board assembled steel structure building; it is characterized in that it includes an outer connector and an inner connector, wherein: The outer connector has: The double-roof outer connector is arranged on the outside of the ridge where the two adjacent roof panels intersect, is fixed with the two roof panels, and connects the two roof panels from the outside; The single roof-wall external connector is arranged on the outside of the eaves where the adjacent roof panels and wall panels intersect, and is fixed with the roof panels and wall panels, and connects the roof panels and wall panels from the outside; The inner connector has: The double-roof inner connecting piece is arranged inside the ridge where the two adjacent roof panels intersect, and is fixed with the two roof panels, connecting the two roof panels from the inner side; The single roof-in-wall connector is arranged inside the eaves where the adjacent roof panels and wall panels intersect, fixed with the roof panels and wall panels, and connects the roof panels and wall panels from the inside; The inner connecting piece of the three-roof cover is arranged inside the ridge where the adjacent three-roof cover plates intersect, and is fixed with the three-roof cover plate, and connects the three-roof cover plate from the inner side; In addition, the outer connector and the inner connector are connected and fixed. 2 . The connection structure of the sloping roof of a box-board-assembled steel structure building according to claim 1 , wherein the roof board and the wall board both adopt a box-shaped steel plate structure composed of panels and stiffeners. 3 . 3. The connection structure of the box-board assembly type steel structure building sloping roof according to claim 1 is characterized in that, the outer connector adopts angle steel, and the angle steel is covered at each ridge and eaves, and is connected with the roof plate and the wall. Plate welded seal. 4. The connection structure of the sloping roof of a box-board-assembled steel structure building according to claim 2, wherein the inner connecting piece is formed by welding a rectangular thin steel plate, comprising a bottom plate, an end plate and a reinforcing plate, and the end plate is formed by welding. It is welded to the bottom plate at a certain inclination angle to connect the stiffeners and panels in different directions, and the stiffener is welded to the bottom plate vertically to connect the external connectors. 5. The connection structure of the sloping roof of a box-board-assembled steel structure building according to claim 4, wherein the inner connecting piece of the double roof is a double stiffening rib connecting piece, the reinforcing plate is arranged in the center of the bottom plate, and the end plate There are two pieces, which are symmetrically arranged on both ends of the bottom plate with respect to the reinforcing plate, and are used for welding and fixing with the stiffening ribs of the adjacent two roof panels; the single roof-wall connecting piece has the same structure and is used for connecting with the adjacent roof panels. It is welded and fixed with the stiffener of the wall panel. 6. The connection structure of the sloping roof of a box-board-assembled steel structure building according to claim 4, characterized in that, the inner connecting piece of the three roofs is a three stiffening rib connecting piece, the reinforcing plate is arranged in the center of the bottom plate, and the end plate There are three pieces, two of which are symmetrically arranged on the two ends of the bottom plate with respect to the reinforcement plate, and the other piece is arranged in the vertical direction of the connecting line of the two pieces, and is used for welding and fixing with the reinforcement ribs of the adjacent three-roof cover plates. 7. The connection structure of the box-board-assembled steel structure building sloping roof according to claim 4, wherein the size of the end plate is larger than the cross-sectional dimension of the stiffener to which it is connected, and the end plate is welded and fixed to the stiffener to which it is connected. . 8 . The connection structure of the box-board-assembled steel structure building sloping roof according to claim 4 , wherein the height of the reinforcing plate extends to the outer connecting piece and is fixed by welding. 9 . 9. The connection structure of the box-board-assembled steel structure building sloping roof according to claim 4, wherein the inclination angle of the end plate is based on the angle between the adjacent two roof panels or the adjacent roof panels to which it is connected. Determined with the angle between the wall panel. 10. The installation method of the sloping roof of the box-board assembly type steel structure building is characterized in that comprising the following steps: S10: At the single roof-wall connection, at the eaves outside the roof, fasten the angle steel to the roof panel and the wall panel, and then weld the angle steel to the roof panel and the wall panel; At the eaves on the inner side of the cover, the end plates of the double-stiffened rib connector are welded to the panels and stiffeners of the roof panel and the wall panel respectively, and the reinforcing plate of the double-stiffened rib connector is welded to the angle steel on the outside of the roof; S20: Where the double roof is connected to the horizontal ridge, on the outside of the roof at the horizontal ridge, fasten the angle steel to the roof plate, and then weld and fix the angle steel and the roof plate; The end plate of the double-stiffened rib connector is welded with the panels and stiffeners of each roof panel, and the reinforcing plate of the double-stiffened rib connector is welded with the angle steel on the outside of the roof; S30: At the intersection of the three roof ridges, on the outside of the roof at the inclined roof ridge, the end of the angle steel is cut, then fastened to the roof plate, and the angle steel is assembled at the intersection of the three roof ridges and fixed with the roof plate by welding; On the inner side of the roof at the sloping ridge, the end plates of the three-stiffener connectors are welded to the panels and stiffeners of each roof plate, and the reinforcing plates of the three-stiffener connectors are welded to the angle steel on the outside of the roof; S40: At the intersection of double roof and double walls, on the outside of the wall, fasten the angle steel closely to the wall-wall connection, then weld the angle steel to the panel and stiffener of the wall panel, and extend the sloped roof ridge and Weld the angle steel at the joint of single roof-wall to the intersection of double roof and double wall, and weld the four as a whole.

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