CN114278019A - Assembled roof frame and preparation process and construction method thereof - Google Patents

Abstract

The invention relates to the technical field of roof buildings, in particular to an assembled roof frame and a preparation process and a construction method thereof, wherein the roof frame comprises upright posts, a roof panel, a cross beam and a wallboard; the preparation process comprises design and layout, wallboard positioning, flower shelf decomposition and flower shelf processing; the construction method comprises roof construction, flower stand assembly, wallboard pouring and waterproof treatment; the beneficial effects are that: adopt prefabricated assembled structure to carry out roofing building way, roofing computer lab and roofing pergola construction, through the installation of assembled, effectively improve on-the-spot efficiency of being under construction, practice thrift a large amount of materials, save labour's input, practice thrift construction period, greatly reduced engineering cost reduces the potential safety hazard in the work progress, accords with green construction theory.

Description

Assembled roof frame and preparation process and construction method thereof

The invention relates to the technical field of roof buildings, in particular to an assembled roof frame and a preparation process and a construction method thereof.

Background

The existing high-rise and super high-rise residential construction mostly adopts a new technology of combining an aluminum mould and an attached lifting scaffold, so that the construction efficiency is high, and the whole construction period is shortened.

When structure construction to roof layer structure, because of it is non-standard structure, need set up the scaffold of encorbelmenting again, adopt full hall scaffold + plank sheathing construction tradition construction process to construct, treat roofing pergola and computer lab structure construction completion, demolish all support bodies, just can carry out roofing building way construction, this construction process construction cycle is long, the operation degree of difficulty is big to there is certain potential safety hazard, postpones large-scale mechanical equipment's demolition time, causes construction cost's increase.

Disclosure of Invention

The invention aims to provide an assembled roof frame and a preparation process and a construction method thereof, and aims to solve the problems of long construction period and high operation difficulty of a roof layer.

In order to achieve the purpose, the invention provides the following technical scheme:

an assembled roof rack, the roof rack comprising:

the roof panel is provided with a positioning groove matched with the upright column for connection and a pre-buried column matched with the wallboard for pouring;

the inner cavity of the upright column is hollow up and down, the outer wall of the lower end of the upright column is inserted into the positioning groove, the inner cavity of the upper end of the upright column is provided with a middle boss, the upper end of the middle boss is provided with an upper slot, and the middle boss is provided with four groups of pouring holes which penetrate through the upper part and the lower part and are distributed in a circumferential array;

the beam is provided with a positioning pipe which is matched and spliced with the upper slot, the positioning pipe is provided with a through hole communicated with the pouring hole in a penetrating way, the positioning pipe and the upper slot are both provided with a transverse slot in a transverse penetrating way, and a transverse inserted rod is inserted in the transverse slot;

the wallboard comprises a pair of templates which are symmetrical front and back, a reinforcing steel bar frame fixed on the inner side of the templates through embedded columns, and a second pouring layer poured in the gap between the front template and the rear template.

Preferably, the locating column has vertically been pour in the middle of the constant head tank, fixed mounting has the supporting component on the locating column, be provided with the support ring through four groups connecting rod fixed connection's of circumference array distribution laminating stand inner wall on the supporting component.

Preferably, four groups of embedded rods distributed in a circumferential array are embedded and poured on the upper end face of the positioning column, the lower end of the supporting component is provided with a mounting hole matched and spliced with the embedded rods, and through holes are formed in the supporting component and the positioning column.

Preferably, a transversely extending embedded reinforcement cage is poured in the roof panel, reinforcing steel bars are inserted in the through holes, the lower ends of the reinforcing steel bars extend to the embedded reinforcement cage, and the upper ends of the reinforcing steel bars extend to the lower end of the middle boss.

Preferably, the upper slot is communicated with the inner cavity of the upright post through a pouring hole, the pouring hole is formed in the inner side of the through hole in the positioning tube, and a first pouring layer is poured in the through hole, the pouring hole and the inner cavity of the upright post.

Preferably, the lower end of the steel bar frame is provided with a sleeve, the roof panel and the cross beam are provided with a reserved groove corresponding to the wall panel, the embedded column is embedded and poured in the reserved groove on the roof panel, and the sleeve at the lower end of the steel bar frame is vertically inserted in the embedded column.

Preferably, the outer wall that stand and wallboard correspond is provided with the draw-in groove, the template is pegged graft in the draw-in groove, the position that corresponds with the clearance between the front and back template on the crossbeam is run through and is provided with the hole of building in advance.

A preparation process for realizing the assembled roof rack comprises the following steps:

designing and composing, designing according to a construction engineering method of a design drawing and according to a mode of an upright roof or an inverted roof, creating a three-dimensional model of the roof engineering by using a BIM modeling tool, wherein the three-dimensional model comprises all structural members, building lines, a roof equipment foundation structure, a construction method, a water falling port and the like, independently establishing a model for detail nodes, splitting and optimizing all the members according to the created three-dimensional BIM model, structurally designing member connecting nodes to meet the requirements of relevant specifications, numbering the split members after the design is met, and forming a prefabricated member production deepened drawing;

optimizing and typesetting in advance according to the actual size of the on-site roof, ensuring the on-site size to be consistent with the size of the on-site roof, and pouring and producing the roof panel which integrates heat preservation, water resistance and roof bricks according to the requirement;

positioning the wall boards, determining the position distribution of the wall boards in advance according to a design drawing, arranging a reserved groove at a corresponding position in advance when pouring and molding the roof board, and arranging a pre-buried column in the reserved groove according to the length of the wall board;

the roof flower shelf is decomposed, the roof flower shelf is divided into a horizontal component and a vertical component, the vertical component is deepened into an upright post, the horizontal component is deepened into a cross beam, the design of a connecting node meets the requirements of structural design and earthquake resistance grade, a positioning groove is arranged on the roof panel corresponding to the upright post according to a drawing, and a positioning column with a supporting assembly is arranged in the positioning groove;

the pergola processing sets up cavity inner chamber, has the middle boss of pouring the hole and the last slot that the cooperation crossbeam is connected on the stand, sets up the registration arm and the reservation groove that corresponds with the wallboard position with last slot connection on the crossbeam, sets up the hole of building in advance on the crossbeam according to the position of wallboard in the drawing.

An assembly construction process realized by the fabricated roof frame comprises the following steps:

the method comprises the following steps of (1) roof construction, wherein before roof structure concrete construction, building and structure drawings are combined, a roof structure such as a roof equipment foundation and a flue is subjected to primary formwork lifting, the roof structure is poured together with roof structure layer concrete, the elevation of a roof surface is controlled, slope finding is performed on a roof through elevation control, the flatness and slope finding of the roof are strictly controlled during roof structure construction, leveling and slope finding are performed at one time according to requirements, the structures such as the roof structure foundation and the equipment foundation are poured simultaneously with the roof surface concrete, the roof panel is transported to the site for assembly, and after assembly, seam splicing treatment is performed to ensure no leakage;

the method comprises the steps of flower stand assembly, namely, vertical splicing of an upright post is realized through a positioning groove, assembly of a cross beam and the upright post is realized through matching of an upper slot and a positioning pipe, transverse splicing of a transverse inserted rod and pre-installation of the upright post are realized, concrete pouring is performed on an inner cavity and a through hole of the upright post through a pouring hole, a first pouring layer is formed, and fixed connection of the upright post, the cross beam and a roof panel is realized;

pouring the wallboard, namely positioning, fixing and inserting the reinforcing steel frame on the wallboard through the embedded columns, installing a template outside the reserved grooves corresponding to the upper part and the lower part through the clamping grooves, pouring the inner cavity of the template through the pre-cast holes in the cross beam to form a second pouring layer, realizing the fixed connection between the wallboard and the upright columns, between the cross beam and the roof panel, and disassembling the template after the strength of the concrete layer of the second pouring layer reaches the standard;

and (3) waterproof treatment, namely after the prefabricated parts are installed, laying the integrated roof boards according to the typesetting design deepened drawing, after laying, performing special treatment on joints among the integrated boards, joints among the integrated boards and the prefabricated parts of the machine room and the flower stand, joints among the integrated boards and the peripheral parapet walls, and the like, and performing treatment on detailed nodes such as water resistance, expansion joints, water falling openings, drainage ditches and the like to ensure that the whole roof has no leakage.

Compared with the prior art, the invention has the beneficial effects that: the prefabricated assembly type structure is adopted for roof building construction, roof machine room and roof flower frame construction, and through the assembly type installation, the on-site construction efficiency is effectively improved, a large amount of materials are saved, the labor input is saved, the construction period is shortened, the engineering cost is greatly reduced, the potential safety hazard in the construction process is reduced, and the green construction concept is met.

Drawings

FIG. 1 is a schematic view of the construction structure of the present invention;

FIG. 2 is a top plan view of the wall panel construction of the present invention;

FIG. 3 is a schematic half-sectional view of a three-dimensional structure of a column according to the present invention;

FIG. 4 is a schematic perspective view of a beam according to the present invention;

fig. 5 is a schematic view of a three-dimensional structure of the roof panel of the present invention;

fig. 6 is a schematic perspective view of the support assembly of the present invention.

In the figure: 1. a roof panel; 2. a column; 3. a cross beam; 4. a wallboard; 5. embedding a reinforcement cage; 6. a positioning column; 7. positioning a groove; 8. a support assembly; 9. pouring holes; 10. a transverse insertion rod; 11. pre-drilling holes; 12. an upper slot; 13. a first casting layer; 14. reinforcing steel bars; 15. a template; 16. a card slot; 17. a reinforcing steel bar frame; 18. A sleeve; 19. pre-embedding the column; 20. a second pouring layer; 21. reserving a groove; 22. pre-burying a rod; 23. a through hole; 24. a positioning tube; 25. a through hole; 26. a transverse slot; 27. a support ring; 28. a connecting rod; 29. mounting holes; 30. a middle boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 6, the present invention provides a technical solution:

the utility model provides an assembled roof frame, roof frame include roof boarding 1 and are provided with constant head tank 7 that cooperation stand 2 is connected, and the inner chamber of stand 2 sets up to cavity from top to bottom, and the lower extreme outer wall of stand 2 is pegged graft in constant head tank 7, realizes through constant head tank 7 that the location of stand 2 is installed in advance.

The inner cavity of the upper end of the upright post 2 is provided with a middle boss 30, the upper end of the middle boss 30 is provided with an upper slot 12, the cross beam 3 is provided with a positioning tube 24 which is matched and spliced with the upper slot 12, and the positioning pre-installation of the cross beam 3 and the upright post 2 is realized by the splicing of the positioning tube 24 and the upper slot 12.

The positioning tube 24 and the upper slot 12 are both transversely provided with a transverse slot 26 in a penetrating manner, a transverse inserted rod 10 is inserted in the transverse slot 26, and the transverse inserted rod 10 is used for fixing the connection angle of the cross beam 3 and the upright post 2.

Four groups of pouring holes 9 which penetrate through the middle boss 30 up and down and are distributed in a circumferential array mode are arranged, a through hole 25 communicated with the pouring holes 9 is formed in the positioning pipe 24 in a penetrating mode, the upper inserting groove 12 is communicated with the inner cavity of the upright post 2 through the pouring holes 9, the pouring holes 9 are located in the inner side of the through hole 25 in the positioning pipe 24, a first pouring layer 13 is poured in the through hole 25, the pouring holes 9 and the inner cavity of the upright post 2, and the upright post 2, the roof panel 1 and the cross beam 3 are fixedly connected through pouring of the first pouring layer 13.

The roof panel 1 is provided with an embedded column 19 which is matched with the wall panel 4 to be poured, the wall panel 4 comprises a pair of templates 15 which are symmetrical front and back, a steel bar frame 17 which is fixed on the inner side of the templates 15 through the embedded column 19 and a second pouring layer 20 which is poured in a gap between the front and back templates 15, the lower end of the steel bar frame 17 is provided with a sleeve 18, the roof panel 1 and the cross beam 3 are provided with a preformed groove 21 corresponding to the wall panel 4 in position, the embedded column 19 is embedded and poured in the preformed groove 21 on the roof panel 1, the sleeve 18 at the lower end of the steel bar frame 17 is vertically inserted in the embedded column 19, the steel bar frame 17 is pre-installed through the matching of the sleeve 18 and the embedded column 19, the template 15 forms temporary support, and the wall panel 4 is fixedly installed under the pouring of the second pouring layer 20.

Example 1:

the positioning pre-installation of the upright post 2 is realized through the positioning groove 7, the positioning pre-installation of the beam 3 and the upright post 2 is realized by the insertion of the positioning pipe 24 and the upper slot 12, and the connection angle fixation of the beam 3 and the upright post 2 is realized through the transverse insertion rod 10.

Through the pouring of first pouring layer 13, realize the fixed connection between stand 2, roof boarding 1 and crossbeam 3, through setting up the cooperation of sleeve pipe 18 with embedded post 19, realize the preinstallation of steel reinforcement 17, form temporary support through template 15, and then under the pouring of second pouring layer 20, realize the fixed mounting of wallboard 4.

Example 2:

on embodiment 1's basis, this application still has the middle vertical reference column 6 of pouring of constant head tank 7, and fixed mounting has supporting component 8 on the reference column 6, is provided with the support ring 27 through four groups of connecting rod 28 fixed connection's of circumference array distribution laminating stand 2 inner wall on the supporting component 8, and the pre-buried four groups of embedded pole 22 of circumference array distribution of pouring of the up end of reference column 6, and the lower extreme of supporting component 8 is provided with the mounting hole 29 of pegging graft with the cooperation of embedded pole 22.

For the longer stand 2 of length, its centre of gravity height is higher, and the grafting installation in constant head tank 7 causes stand 2 to topple over easily or squint.

Through setting up the reference column 6 and extending the grafting height between roof boarding 1 and the stand 2, utilize pre-buried pole 22 and mounting hole 29's cooperation, realize supporting component 8's installation, realize supporting stand 2's inner wall through being provided with support ring 27, and then realize stand 2's vertical grafting, avoid empting.

Example 3:

on embodiment 2's basis, this application still has and all sets up through-hole 23 on supporting component 8 and reference column 6, has pour transversely extended embedded reinforcement cage 5 in the roof boarding 1, and it has reinforcing bar 14 to peg graft in the through-hole 23, and reinforcing bar 14's lower extreme extends to embedded reinforcement cage 5, and reinforcing bar 14's upper end extends to the lower extreme of middle boss 30.

For longer stand 2, the concrete column intensity that its outer wall and first layer 13 of pouring formed is not enough, can't satisfy the support needs.

Through setting up the location grafting that through-hole 23 realized reinforcing bar 14, and then through reinforcing bar 14 and pre-buried steel reinforcement cage 5 being connected, improved the joint strength between stand 2 and the roof boarding 1.

Example 4:

on embodiment 1's basis, this application still has and sets up draw-in groove 16 on the outer wall that stand 2 and wallboard 4 correspond, and template 15 pegs graft in draw-in groove 16, and the position that corresponds in the clearance between the crossbeam 3 and front and back template 15 runs through and is provided with prefabricated hole 11.

To the wallboard 4 of laminating stand 2, further improve the position accuracy of template 15 through setting up draw-in groove 16, cooperate adjustable prefabricated hole 11, realize conveniently pouring wallboard 4.

A preparation process for preparing the assembled roof frame comprises the following steps:

designing and composing, designing according to a construction engineering method of a design drawing and according to a mode of an upright roof or an inverted roof, creating a three-dimensional model of the roof engineering by using a BIM modeling tool, wherein the three-dimensional model comprises structural members, building lines, a roof equipment foundation structure, a construction method, a water falling port and the like, independently establishing a model for detailed nodes, splitting and optimizing the members according to the created three-dimensional BIM model, structurally designing connecting nodes of the members to meet the requirements of relevant specifications, correspondingly numbering the split members and the installation positions after the design is met, and forming a prefabricated member production deepened drawing;

optimizing and typesetting in advance according to the actual size of the on-site roof to ensure that the size of the on-site roof conforms to the size of the on-site roof, and pouring and producing the roof panel 1 which integrates heat preservation, water resistance and roof bricks into a whole according to the requirement;

positioning the wall boards, namely determining the position distribution of the wall boards 4 in advance according to a design drawing, and arranging reserved grooves 21 in corresponding positions in advance when pouring and forming the roof board 1;

arranging embedded columns 19 in the preformed grooves 21 according to the length of the wall plate 4;

the roof flower shelf is decomposed, the roof flower shelf is divided into horizontal components and vertical components, the vertical components are deepened into upright posts 2, the horizontal components are deepened into cross beams 3, the design of connecting nodes meets the requirements of structural design and earthquake resistance grade, and positioning grooves 7 are arranged on the roof panel 1 corresponding to the upright posts 2 according to a drawing;

a positioning column 6 with a supporting component 8 is properly selected and arranged in the positioning groove 7 according to the design length of the upright column 2;

selecting to insert and mount reinforcing steel bars 14 according to the design strength of the upright post 2;

processing a flower stand, wherein a hollow inner cavity, a middle boss 30 with a pouring hole 9 and an upper slot 12 matched with the beam 3 for connection are arranged on the upright post 2, and a positioning pipe 24 connected with the upper slot 12 and a reserved groove 21 corresponding to the position of the wall plate 4 are arranged on the beam 3;

determining the width of the preformed groove 21 according to the thickness of the wall plate 4;

weaving the reinforcing cage 17 according to the design strength of the wall panel 4;

a precast hole 11 is formed in the cross beam 3 according to the position and the length of the wall plate 4 in the drawing;

according to the installation angle between the cross beam 3 and the upright post 2, the upper slot 12 and the positioning pipe 24 are provided with a transverse slot 26, and the transverse insertion rod 10 is inserted and installed in the transverse slot 26 to realize the angle fixation between the upright post 2 and the cross beam 3.

An assembly construction process realized according to the fabricated roof truss prepared above comprises the following steps:

roof construction, before roof structure concrete construction, building and structure drawings need to be combined, roof structure such as a roof equipment foundation and a flue is lifted by a mould once, the roof structure is poured together with roof structure layer concrete, the elevation of a roof plate 1 is controlled, slope finding is carried out on the roof through elevation control, the flatness of the roof is controlled and the slope is found strictly during the roof structure construction, the roof is leveled and the slope is found once according to requirements, the structures such as the roof structure foundation and the equipment foundation are poured simultaneously with the roof concrete, then the roof plate 1 is transported to the site for assembly, the splicing treatment is carried out after the assembly is finished, no leakage is ensured, the splicing position and the parapet connecting position are subjected to special waterproof treatment after the integrated roof plate 1 is laid, and no leakage is ensured.

Then the flower shelf and the wall board 4 are correspondingly installed according to the number of the components:

the flower shelf assembly is characterized in that vertical splicing of the upright post 2 is realized through the positioning groove 7, positioning pre-installation of the beam 3 and the upright post 2 is realized through splicing of the positioning pipe 24 and the upper slot 12, fixing of a connection angle of the beam 3 and the upright post 2 is realized through the transverse inserted rod 10, concrete pouring is performed on an inner cavity and a through hole 25 of the upright post 2 through the pouring hole 9, a first pouring layer 13 is formed, and fixed connection of the upright post 2, the beam 3 and the roof panel 1 is realized;

pouring the wall board, namely positioning, fixing and splicing the steel bar frame 17 on the wall board 4 through the embedded columns 19, installing the template 15 at the outer side of the reserved groove 21 corresponding to the upper part and the lower part through the clamping groove 16, pouring the inner cavity of the template 15 through the prefabricated hole 11 on the cross beam 3 to form a second pouring layer 20, realizing the fixed connection between the wall board 4 and the upright post 2, between the cross beam 3 and the roof panel 1, and disassembling the template 15 after the concrete layer strength of the second pouring layer 20 reaches the standard;

and (3) waterproof treatment, namely after the prefabricated parts are installed, laying the integrated roof boards according to the typesetting design deepened drawing, after laying, performing special treatment on joints among the integrated boards, joints among the integrated boards and the prefabricated parts of the machine room and the flower stand, joints among the integrated boards and the peripheral parapet walls, and the like, and performing treatment on detailed nodes such as water resistance, expansion joints, water falling openings, drainage ditches and the like to ensure that the whole roof has no leakage.

Although the illustrative embodiments of the present application have been described above to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the embodiments, and various modifications within the spirit and scope of the present application defined and determined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims (9)

1. The utility model provides an assembled roof frame which characterized in that: the roof rack includes:

the roof panel (1) is provided with positioning grooves (7) connected with the matched upright posts (2) and embedded posts (19) poured by the matched wall panels (4);

the inner cavity of the upright post (2) is hollow up and down, the outer wall of the lower end of the upright post (2) is inserted into the positioning groove (7), a middle boss (30) is arranged in the inner cavity of the upper end of the upright post (2), an upper slot (12) is arranged at the upper end of the middle boss (30), and four groups of pouring holes (9) which penetrate through the upper part and the lower part and are distributed in a circumferential array are arranged on the middle boss (30);

the casting device comprises a cross beam (3), wherein a positioning pipe (24) which is matched and spliced with an upper slot (12) is arranged on the cross beam (3), a through hole (25) communicated with a casting hole (9) is arranged on the positioning pipe (24) in a penetrating mode, transverse slots (26) are arranged on the positioning pipe (24) and the upper slot (12) in a penetrating mode, and transverse insertion rods (10) are inserted into the transverse slots (26);

the wall plate (4) comprises a pair of templates (15) which are symmetrical front and back, a reinforcing steel bar frame (17) fixed on the inner side of each template (15) through a pre-buried column (19) and a second pouring layer (20) poured in a gap between the front template and the rear template (15).

2. A modular roof rack as claimed in claim 1, wherein: reference column (6) have vertically been pour in the middle of constant head tank (7), fixed mounting has supporting component (8) on reference column (6), be provided with support ring (27) through four groups connecting rod (28) fixed connection's of circumference array distribution laminating stand (2) inner wall on supporting component (8).

3. A modular roof rack as claimed in claim 2, wherein: four groups of embedded rods (22) distributed in a circumferential array are poured in an embedded mode on the upper end face of the positioning column (6), mounting holes (29) matched and spliced with the embedded rods (22) are formed in the lower end of the supporting component (8), and through holes (23) are formed in the supporting component (8) and the positioning column (6).

4. A modular roof rack according to claim 3, characterised in that: transversely extending embedded reinforcement cages (5) are poured in the roof panel (1), reinforcing steel bars (14) are inserted in the through holes (23), the lower ends of the reinforcing steel bars (14) extend to the embedded reinforcement cages (5), and the upper ends of the reinforcing steel bars (14) extend to the lower ends of the middle bosses (30).

5. A modular roof rack as claimed in claim 1, wherein: the upper inserting groove (12) is communicated with the inner cavity of the upright post (2) through a pouring hole (9), the pouring hole (9) is located on the inner side of a through hole (25) in the positioning tube (24), and a first pouring layer (13) is poured in the through hole (25), the pouring hole (9) and the inner cavity of the upright post (2).

6. A modular roof rack as claimed in claim 1, wherein: the lower end of the reinforcing steel bar frame (17) is provided with a sleeve (18), the roof panel (1) and the cross beam (3) are provided with a preformed groove (21) corresponding to the position of the wall panel (4), the pre-embedded columns (19) are pre-cast in the preformed groove (21) on the roof panel (1), and the sleeve (18) at the lower end of the reinforcing steel bar frame (17) is vertically inserted in the pre-embedded columns (19).

7. A modular roof rack as claimed in claim 1, wherein: the outer wall that stand (2) and wallboard (4) correspond is provided with draw-in groove (16), template (15) are pegged graft in draw-in groove (16), the position that corresponds with the clearance between front and back template (15) on crossbeam (3) is run through and is provided with prefabricated hole (11).

8. A manufacturing process for realizing the fabricated roof rack of any one of claims 1-7, wherein: the preparation process comprises the following steps:

designing and composing, designing according to a construction engineering method of a design drawing and according to a mode of an upright roof or an inverted roof, creating a three-dimensional model of the roof engineering by using a BIM modeling tool, wherein the three-dimensional model comprises all structural members, building lines, a roof equipment foundation structure, a construction method, a water falling port and the like, independently establishing a model for detail nodes, splitting and optimizing all the members according to the created three-dimensional BIM model, structurally designing member connecting nodes to meet the requirements of relevant specifications, numbering the split members after the design is met, and forming a prefabricated member production deepened drawing;

optimizing and typesetting in advance according to the actual size of the on-site roof, ensuring the on-site size to be consistent with the size of the on-site roof, and pouring and producing the roof panel (1) which integrates heat preservation, water resistance and roof bricks into a whole according to the requirement;

positioning the wall boards, determining the position distribution of the wall boards (4) in advance according to a design drawing, arranging a reserved groove (21) at a corresponding position in advance when pouring and forming the roof board (1), and arranging a pre-buried column (19) in the reserved groove (21) according to the length of the wall boards (4);

the roof flower shelf is disassembled, the roof flower shelf is divided into horizontal components and vertical components, the vertical components are deepened into stand columns (2), the horizontal components are deepened into cross beams (3), the design of a connecting node meets the requirements of structural design and earthquake resistance level, positioning grooves (7) are arranged on the roof panel (1) at positions corresponding to the stand columns (2) according to a drawing, and positioning columns (6) with supporting components (8) are arranged in the positioning grooves (7);

flower shelf processing, set up cavity inner chamber, have middle boss (30) of pouring hole (9) and last slot (12) that cooperation crossbeam (3) are connected on stand (2), set up registration arm (24) of being connected with last slot (12) and reserve groove (21) that correspond with wallboard (4) position on crossbeam (3), set up on crossbeam (3) according to the position of wallboard (4) in the drawing and build hole (11) in advance.

9. An assembly construction process realized by the fabricated roof rack prepared according to the claim 8, which is characterized in that: the construction process comprises the following steps:

the method comprises the following steps of (1) roof construction, wherein before roof structure concrete construction, building and structure drawings are combined, a roof structure such as a roof equipment foundation and a flue is lifted by a mould for one time and is poured together with roof structure layer concrete, the surface level of a roof panel (1) is controlled, slope finding is carried out on the roof through elevation control, the flatness and slope finding of the roof are strictly controlled during the roof structure construction, leveling and slope finding are carried out for one time according to requirements, the structures such as the roof structure foundation and the equipment foundation are poured together with the roof, the roof panel (1) is transported to the site for assembly, splicing treatment is carried out after the assembly is finished, no leakage is ensured, special waterproof treatment is carried out on splicing positions and parapet connection positions after the integral roof panel (1) is laid, no leakage is ensured, and a flower stand and a wallboard (4) are correspondingly installed according to the serial number of components;

the flower shelf assembly is characterized in that vertical splicing of the stand column (2) is realized through a positioning groove (7), the assembly of the beam (3) and the stand column (2) is realized through the matching of an upper slot (12) and a positioning pipe (24), the horizontal splicing of a horizontal inserted rod (10) and the pre-installation of the stand column (2) are realized, concrete pouring is carried out on an inner cavity and a through hole (25) of the stand column (2) through a pouring hole (9), a first pouring layer (13) is formed, and the fixed connection of the stand column (2), the beam (3) and the roof panel (1) is realized;

pouring the wallboard, namely positioning, fixing and inserting a reinforcement frame (17) on the wallboard (4) through a pre-embedded column (19), installing a template (15) at the outer side of a preformed groove (21) which corresponds to the wallboard up and down through a clamping groove (16), pouring the inner cavity of the template (15) through a pre-cast hole (11) on a cross beam (3), forming a second pouring layer (20), realizing the fixed connection between the wallboard (4) and a stand column (2), between the cross beam (3) and a roof panel (1), and disassembling the template (15) after the strength of a concrete layer of the second pouring layer (20) reaches a standard;

and (3) waterproof treatment, namely after the prefabricated parts are installed, laying the integrated roof boards according to the typesetting design deepened drawing, after laying, performing special treatment on joints among the integrated boards, joints among the integrated boards and the prefabricated parts of the machine room and the flower stand, joints among the integrated boards and the peripheral parapet walls, and the like, and performing treatment on detailed nodes such as water resistance, expansion joints, water falling openings, drainage ditches and the like to ensure that the whole roof has no leakage.

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