CN216475513U - Metal roof - Google Patents

Abstract

The utility model provides a metal roofing, including the daylighting top that is located central point and the metal roofing of laying along the top eaves outward from the daylighting top, metal roofing and daylighting top handing-over department, metal roofing low-lying department all are equipped with the hoop gutter around the roofing, and the metal roofing includes from bottom to top in order and main part steel construction connection's steel adaptor, primary and secondary purlin structure, lay thermal insulation construction, fossil fragments adaptor, violently indulge fossil fragments and roof boarding on primary and secondary purlin structure. The technical problem of the connection structure of the daylighting roof and the metal roof is solved through the scheme, and the daylighting roof has the advantages of good drainage effect and convenience in roof modeling; meanwhile, the manufacturing cost is low, the popularization is convenient, the limit is reasonable, the wind pressure resistance is realized, and the expansion caused by heat and the contraction caused by cold are free; the whole roof board has stable performance, can be permanently used, can be widely applied to metal roof decoration of various large-scale buildings, and meets the requirements of drainage and lighting.

Description

Metal roof

Technical Field

The utility model relates to the field of building construction, and particularly belongs to a metal roof.

Background

Along with the development of society, roof structure shape is diversified, and roof structure needs to solve waterproof, heat preservation, thermal-insulated, fall make an uproar, drainage and fire prevention scheduling problem, guarantees the stability of intensity, rigidity and whole space of roof component. The roof can usually play a role of capping in the installation of the building to guarantee that the building has corresponding sunshade and rain-proof effects, along with the upgrade of building materials, the roof materials are gradually upgraded into concrete and metal from original wood and bricks, wherein the metal roof panels have better crack resistance compared with other roof materials, can reduce the roof seepage phenomenon, and further protect the dryness degree in the building, so the use frequency of the metal roof panels is more and more, and the metal roof panels are gradually popular with people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a metal roof, which aims to solve the technical problem that the combination structure of a metal roof plate and a daylighting roof is unreasonable in the prior art; and solves the problem of poor drainage performance of the metal roof in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a metal roofing characterized in that: comprises a daylighting top positioned at the central part and a metal roof paved by cornice from the upper part of the outer edge of the daylighting top, the joint of the metal roof and the daylighting roof and the low-lying part of the metal roof are provided with annular gutters around the roof, the metal roof comprises a steel adaptor, a primary purline structure, a secondary purline structure, a heat insulation structure, a keel adaptor, a transverse and longitudinal keel and a roof panel, wherein the steel adaptor, the primary purline structure and the secondary purline structure are sequentially connected with a main steel structure from bottom to top, the steel adaptor comprises two oppositely arranged hot galvanizing channel steel connectors, the primary and secondary purline structures comprise hot galvanizing square pipe primary purlines and hot galvanizing angle steel secondary purlines arranged between adjacent hot galvanizing square pipe primary purlines, the adjacent hot galvanizing square pipe primary purlines are arranged in an included angle or positioned on the same straight line, and the spliced end part is positioned between the two hot galvanizing channel steel connectors and is fixed with the hot galvanizing channel steel connectors on two sides through stainless steel bolt groups respectively; the heat insulation structure comprises an upper galvanized steel plate, a lower galvanized steel plate and tinfoil paper heat insulation rock wool, wherein the tinfoil paper heat insulation rock wool is arranged between the two galvanized steel plates in a staggered and superposed manner, the tinfoil paper heat insulation rock wool is fixed with the upper galvanized steel plate through a rock wool nail, and the lower galvanized steel plate is fixed with a hot-dip galvanized square pipe main purline through a flange self-tapping nail; the keel adapter comprises a square steel pipe support, a bearing steel plate and four hot-dip galvanized square steels, wherein the square steel pipe support is sequentially arranged on a hot-dip galvanized square pipe main purline from bottom to top; the transverse keel and the longitudinal keel comprise square pipe main keels of which the end parts are fixed with the two hot galvanized square steels and square pipe secondary keels arranged between the adjacent square pipe main keels, and the square pipe secondary keels and the square pipe main keels are subjected to stretch bending treatment; the roof panel comprises a hot-dip galvanized steel plate laid on the transverse and longitudinal keels, channel steel and an aluminum single plate, wherein the channel steel and the aluminum single plate are arranged on the square pipe main keels and the square pipe secondary keels, the aluminum single plate is a hyperbolic irregular metal plate, the periphery of the aluminum single plate is bent downwards, the inner side of a bent part is fixed by bolts after being attached to the inner side of a channel steel flange plate, and an angle brace is arranged between the inner side of the bent part and the transverse and longitudinal keels;

the circumferential gutter comprises an inner side gutter which is positioned below the transverse and longitudinal keel and on the lower edge of the daylighting roof and an outer side gutter which is positioned below the metal roof depression and the transverse and longitudinal keel, the left side top surface elevation of the inner side gutter far away from the daylighting roof is higher than the right side top surface elevation, the circumferential gutter comprises a bottom supporting steel pipe which is supported between longitudinal steel ribs of a main steel structure, a gutter steel framework which is arranged on the bottom supporting steel pipe, hot-dip galvanized steel plates which are laid on the inner side and the outer side of the gutter steel framework and heat-preservation rock wool which is arranged between two layers of hot-dip galvanized steel plates, wherein the hot-dip galvanized steel plate on the outer side of the left side gutter extends upwards to a square pipe keel to form a sealing plate between the heat-preservation structure and the roof plate, the upper part of the hot-dip galvanized steel plate on the outer side of the right side gutter is sealed by a special-shaped aluminum single plate, and the special-shaped aluminum single plate comprises an outer side vertical structure, an oblique structure and an inner side vertical structure which is fixed with a daylighting roof aluminum profile material, the oblique structure and the lower edge of the daylighting roof are in smooth oblique transition, the gutter on the outer side comprises a gutter bottom supporting steel pipe supported between longitudinal steel ribs of a main steel structure, a steel skeleton arranged on the gutter bottom supporting steel pipe, hot-dip galvanized steel plates laid on the inner side and the outer side of the steel skeleton, heat-insulating rock wool arranged between two layers of hot-dip galvanized steel plates, a sealing aluminum single plate with a U-shaped section and a perforated aluminum single plate arranged above the gutter and between two side roof plates, wherein the steel skeleton is arranged on the steel skeleton; the notches of the sealed aluminum single plates on the two sides are arranged in a back-to-back manner, the top surface of the aluminum single plate is 3% inclined towards the inner side of the gutter, the hot-dip galvanized steel plate on the outer side is turned up to the top surface of the heat insulation structure, and the lower sides of the sealed aluminum single plates are fixed with the hot-dip galvanized steel plate through sealant;

the daylighting top includes netted daylighting top main part steel construction and passes through the aluminium alloy supports the glass panels on netted daylighting top main part steel construction, netted daylighting top main part steel construction is formed by the concatenation of a plurality of triangle steel structures, every six the triangle steel structure encloses admittedly in the steel pipe outside, and steel pipe top surface passes through the steel sheet and seals, single glass panels with three angle steel structural shape suit, every six glass panels encloses admittedly and locates on the steel cylinder on the steel sheet, steel cylinder top surface is sealed, and the bottom is fixed with the steel sheet through the angle steel, the below that adjacent glass panels concatenation seam or glass panels are close to edge under the inboard gutter is located to the aluminium alloy briquetting that includes H type aluminium alloy pressure seat, inverted F type aluminium alloy subframe and is used for connecting H type aluminium alloy pressure seat and inverted F type aluminium alloy subframe.

Preferably, polyurethane waterproof paint, fiber mesh cloth, a yellow sand layer and polyurethane finish paint are arranged on the hot-dip galvanized steel plate outside the gutter from inside to outside, and overflow pipes and water falling pipes are arranged at the bottoms of the inner gutter and the outer gutter.

Furthermore, the hot-dip galvanized steel channel connecting piece is directly fixed with the main steel structure or fixed with a bracket arranged on the main steel structure, the bracket is a triangular supporting structure formed by splicing hot-dip galvanized angle steel, and an oblique reinforcing support is arranged between the hot-dip galvanized steel channel connecting piece positioned at the inner gutter and the main steel structure.

Furthermore, the upper transverse part of the inverted F-shaped aluminum alloy auxiliary frame is fixed below the glass panel through double-sided structural adhesive, the aluminum alloy pressing block is of a T-shaped structure, two sides of the transverse part of the T-shaped structure are pressed and fixed on the lower transverse parts of the inverted F-shaped aluminum alloy auxiliary frames on two sides, the middle part of the T-shaped structure is fixed with a bolt notch arranged at the center of the transverse part of the H-shaped aluminum alloy pressing seat through a bolt, the bottom surface of the transverse part of the T-shaped structure and two sides of the bolt are provided with screw rod limiting parts, the bolt notch comprises nut limiting parts arranged at two sides of the bolt, the top surface of the nut limiting part is an inwards concave groove, the bottom of the screw rod limiting part is limited in the groove, the two sides of the nut limiting part on the transverse part of the H-shaped aluminum alloy pressing seat are respectively provided with adhesive tape limiting grooves, W-shaped adhesive tapes are arranged between the adhesive tape limiting grooves on two sides, two sides of the W-shaped adhesive tapes are respectively limited in the adhesive tape limiting grooves on two sides, and two wave troughs in the middle part are adhered to the top surface of the transverse part of the H-shaped aluminum alloy pressing seat, the wave crest is pasted with the top surface of the nut limiting part.

Further, the H-shaped aluminum alloy pressing seat is fixed with the main steel structure of the net-shaped daylighting roof through a U-shaped groove, a notch of the U-shaped groove is arranged downwards, an insulating gasket is laid on the top surface, the transverse part of the H-shaped aluminum alloy pressing seat is fixed with the U-shaped groove through a screw, and the corner of the U-shaped groove is a round angle.

Furthermore, reinforcing ribs are arranged in the aluminum veneer, and the end parts of the reinforcing ribs, the bent parts and the middle parts of the reinforcing ribs and the aluminum veneer bottom plate are fixed through angle codes and bolts.

Furthermore, be located eave department metal roofing including locating main purlin between the steel construction roof beam, violently indulge the fossil fragments and lay the roof boarding on violently indulging the fossil fragments through vertical switching structure is connected with main purlin, be located the eave bottom surface be equipped with the light trough on the roof boarding, adjacent aluminium veneer concatenation department is located to the light trough, corresponds the setting with the channel-section steel.

Furthermore, a left inverted F-shaped aluminum alloy auxiliary frame of the aluminum profile, which is positioned below the lower edge of the inner gutter of the glass panel, is replaced by an inverted hook-shaped aluminum alloy auxiliary frame, the upper part of the vertical part of the inverted hook-shaped aluminum alloy auxiliary frame is fixed with the structure of the inner vertical part through bolts, a galvanized flat iron is arranged between the inverted hook-shaped aluminum alloy auxiliary frame and the glass panel, the galvanized flat iron is fixed with the top surface of the U-shaped groove, the circumferential length of the galvanized flat iron is 100mm, and the galvanized flat iron is positioned at the 1/4 position of the lower edge of the glass panel.

Furthermore, a stainless steel circular steel tube, a horizontal stainless steel connecting plate and a vertical stainless steel connecting plate are sequentially arranged on the bottom surface of the bearing steel plate of the keel adapter positioned above the daylighting roof, and the vertical stainless steel connecting plate penetrates through the splicing seam of the glass panel and is welded and fixed with the main body steel of the reticular daylighting roof.

More preferably, four hot-galvanized angle steels for fixing the annular beam are arranged on the top surface of the bearing steel plate of the keel adapter positioned above the daylighting roof, the annular beam is formed by splicing a plurality of 120 x 80 x 4mm hot-galvanized square tubes end to end, a hot-galvanized angle steel secondary keel is connected between every two adjacent annular beams, a square tube secondary keel is connected between each annular beam and the square tube main keel, and the square tube main keel is formed by splicing a plurality of 90 x 60 x 4mm hot-galvanized square tubes end to end.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

the technical problem of the joint structure of the daylighting roof and the metal roof is solved through the scheme, and the metal roof has the advantages of good drainage effect and convenience in roof modeling; meanwhile, the manufacturing cost is low, the popularization is convenient, the limiting is reasonable, the wind pressure resistance is realized, and the expansion caused by heat and the contraction caused by cold are free; the whole roof board has stable performance, can be permanently used, can be widely applied to metal roof decoration of various large-scale buildings, and meets the requirements of drainage and lighting.

Drawings

FIG. 1 is a schematic structural view of a metal roof according to the present application;

FIG. 2 is a schematic structural view of a metal roof to which the present application relates;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural diagram of an aluminum veneer to which the present application relates;

FIG. 5 is a schematic structural view of an inboard gutter to which the present application relates;

FIG. 6 is an enlarged view of part A of FIG. 5;

FIG. 7 is a schematic structural view of a lateral gutter to which the present application relates;

FIG. 8 is a schematic view of the structure of the cornice according to the present application;

FIG. 9 is a structural diagram of the positional relationship between the steel cylinder and the steel pipe according to the present application;

fig. 10 is a schematic structural view of an aluminum profile according to the present application.

Reference numerals: 100-daylighting roof; 101-a glass panel; 102-a steel pipe; 103-a steel cylinder; 104-H type aluminum alloy pressing seat; 105-inverted F-shaped aluminum alloy subframe; 106-aluminum alloy briquettes; 107-screw limit stop; 108-nut limit; 109-adhesive tape limiting grooves; a 110-W type adhesive tape; 111-barb-like aluminum alloy subframe; 112-an insulating spacer; 113-U-shaped groove; 114-galvanized flat iron; 200-cornice; 201-main purlin; 202-vertical transfer structure; 203-lamp groove; 300-metal roofing; 301-hot galvanizing channel steel connecting piece; 302-hot galvanizing square tube main purline; 303-stainless steel bolt group; 304-hot galvanizing angle steel secondary purline; 306-galvanized steel sheet; 307-tinfoil paper heat preservation rock wool; 308-rock wool nail; 309-supporting the square steel tube; 310-bearing steel plate; 311-hot dip galvanized square steel; 312-square tube main keel; 313-square tube secondary keel; 315-channel steel; 316-aluminum veneer; 319-reinforcing ribs; 320-stainless steel round steel pipe; 321-horizontal stainless steel connecting plate; 322-vertical stainless steel connecting plates; 323-hot dip galvanized angle steel; 324-hot galvanizing angle steel secondary keel; 325-ring beam; 400-inner gutter; 401-bottom support steel tube; 402-gutter steel skeleton; 403-special-shaped aluminum veneer; 500-lateral gutter; 501-supporting a steel pipe at the bottom of a gutter; 502-steel skeleton; 503-perforated aluminum single plate; 504-sealed aluminum veneer; 505-an overflow pipe; 506-a downpipe; 600-main body steel structure; 601-corbel; 602-diagonal reinforcing support.

Detailed Description

In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.

The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the utility model. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The utility model provides a metal roofing, as shown in fig. 1, including the daylighting top 100 that is located central part and the metal roofing 300 of laying along the upward direction cornice 200 from the daylighting top 100 outer, metal roofing 300 and daylighting top 100 handing-over department, metal roofing 300 low-lying department all is equipped with the hoop gutter around the roofing, metal roofing 300 includes the steel adaptor of being connected with main part steel construction 600 in order from bottom to top, primary and secondary purlin structure, lay the insulation construction on primary and secondary purlin structure, the fossil fragments adaptor, violently indulge fossil fragments and roof boarding.

As shown in fig. 2, the steel adaptor includes two oppositely disposed galvanized steel channel connectors 301, the galvanized steel channel connectors 301 are made of 16# channel steel, the primary and secondary purline structures belong to a first layer of framework and include a galvanized square pipe primary purline 302 and a galvanized angle steel secondary purline 304 arranged between the adjacent galvanized square pipe primary purlines 302, the adjacent galvanized square pipe primary purlines 302 are arranged at an included angle as shown in fig. 3 or on the same straight line, the spliced end portions are located between the two galvanized steel channel connectors 301 and are fixed to the galvanized steel channel connectors 301 on both sides respectively through stainless steel bolt groups 303, the galvanized square pipe primary purline 302 and the galvanized steel channel connectors 301 are fixed by screwing first and then welding first, and the stainless steel bolt groups 303 adopt 2-M16-150 stainless steel bolt groups;

the heat preservation structure comprises an upper layer of galvanized steel plate 306, a lower layer of galvanized steel plate 306 and tinfoil paper heat preservation rock wool 307 arranged between the two layers of galvanized steel plates 306 in a staggered overlapping mode, wherein the tinfoil paper heat preservation rock wool 307 is fixed with the upper layer of galvanized steel plate 306 through a rock wool nail 308, the number of rock wool nails 308@ is not less than 8 per square, the lower layer of galvanized steel plate 306 is fixed with a hot galvanizing square pipe main purline 302 through a flange plate self-tapping nail 305, the thickness of the galvanized steel plate 306 is 0.6mm, the overlapping portion of the splicing portion is not less than 50mm, the tinfoil paper heat preservation rock wool 307 is 50+50mm, and the unit weight is 150kg/m 3; in the application, the galvanized steel sheet 306 and the unnumbered galvanized steel sheet are galvanized steel sheets with the same type and different thicknesses;

the keel adapter comprises a square steel pipe support 309, a bearing steel plate 310 and four hot-dip galvanized square steels 311, wherein the square steel pipe support 309 is sequentially arranged on the hot-dip galvanized square pipe main purline 302 from bottom to top, the bearing steel plate 310 is arranged on the top surface of the square steel pipe support 309, the hot-dip galvanized square steels 311 are vertically arranged on the bearing steel plate 310, and the hot-dip galvanized square steels 311 are 60 x 4mm hot-dip galvanized steel square pipes;

the transverse and longitudinal keels (second-layer skeleton) comprise square pipe main keels 312 of which the end parts are fixed with the two hot-galvanized square steel pieces 311 and square pipe secondary keels 313 arranged between the adjacent square pipe main keels 312, the square pipe secondary keels 313 and the square pipe main keels 312 are subjected to bending treatment, the square pipe secondary keels 313 are located at the circumferential position of the roof, preferably 60 × 4mm square hot-galvanized pipes are selected, and the square pipe main keels 312 are located at the position of the roof, which is in a shape of emitting from the center to the outside, preferably 90 × 60 × 4mm hot-galvanized square pipes;

the roof panel comprises a hot galvanized steel plate laid on the transverse and longitudinal keels, channel steel 315 and an aluminum single plate 316 arranged on the square pipe main keels 312 and the square pipe secondary keels 313, the aluminum single plate 316 is a hyperbolic irregular metal plate, preferably a 3mm thick fluorocarbon-sprayed aluminum single plate, the periphery of the aluminum single plate 316 is bent downwards, the inner side of the bent part is fixed by bolts after being attached to the inner side of a flange plate of the channel steel 315, an angle connector is arranged between the inner side of the bent part and the transverse and longitudinal keels, when the metal roof 300 above the daylighting roof 100 is sealed, it should be noted that a water control gap is reserved between the sealing plate and the daylighting roof 100, so that the daylighting roof can conveniently flow into the annular gutter, the sealing plate treatment and the roof plate treatment are the same in mode and comprise an aluminum single plate and steel ribs, the notch of the channel steel 315 is upward, the aluminum single plate 316 is fixed with the main keel 312 of the square tube and is arranged annularly at the same time, structural adhesive or night scene lamps are filled in the aluminum single plate, and the sealing position of the aluminum single plate 316 adopts angle steel to replace channel steel 315 for sealing treatment;

the annular gutter comprises an inner side gutter 400 and an outer side gutter 500, wherein the inner side gutter 400 is located on the lower edge of the lighting roof 100 and below the transverse and longitudinal keels 300, the outer side gutter 500 is located on the lower portion of the metal roof 300, the inner side gutter 400 is mainly used for collecting rainwater on the lighting roof 100, and the outer side gutter 500 is mainly used for collecting rainwater on the metal roof 300.

As shown in fig. 5 and 6, the left top surface of the inner gutter 400 far from the daylighting roof 100 is higher than the right top surface, the bottom surface of the inner gutter 400 is almost tightly attached to the main steel structure 600, and therefore, a vertical adapter is not required to be arranged, and a support is directly arranged in the main steel structure 600, specifically, the inner gutter includes a bottom support steel pipe 401 (which is made of the same material as the main purline 302 of the hot galvanizing square pipe and is 120 × 80 × 4mm hot galvanizing square pipe) supported between the longitudinal steel ribs of the main steel structure 600, a gutter steel frame 402 arranged on the bottom support steel pipe 401, hot galvanizing steel plates arranged on the inner side and the outer side of the gutter steel frame 402, and heat preservation rock wool arranged between two layers of hot galvanizing steel plates, wherein the gutter steel frame 402 is formed by splicing 50 × 5mm hot galvanizing steel pipes and comprises a horizontal and longitudinal support, the thickness of the hot galvanizing steel plate at the gutter is 3mm, the material is 316, and the width of the inner gutter 400 is 500mm, the left side is 800mm high and the right side is 350mm high. The hot-dip galvanized steel sheet of the left side gutter outside (towards the gutter side) upwards extends to square pipe secondary joist 313 and forms the sealing plate between insulation construction and the roof boarding, and the hot-dip galvanized steel sheet top in the right side gutter outside seals through special-shaped aluminium veneer 403, and special-shaped aluminium veneer 403 includes outside vertical structure, slant structure and the inboard vertical structure of fixed with daylighting top 100 aluminium alloy, and the slant structure is along smooth slant transition with daylighting top 100 down. Waterproof materials are arranged on the hot-dip galvanized steel plates on the outer sides of the gutters and comprise polyurethane waterproof coatings, fiber mesh cloth, yellow sand layers and polyurethane finish paint which are sequentially arranged from inside to outside, the waterproof materials extend to the daylighting roof 100, and overflow pipes 505 and water falling pipes 506 are arranged at the bottoms of the inner side gutters 400 and the outer side gutters 500.

As shown in fig. 7, the outer gutter 500 includes a gutter bottom support steel pipe 501 supported between longitudinal steel ribs of a main steel structure 600, a steel skeleton 502 provided on the gutter bottom support steel pipe 501, hot-dip galvanized steel plates laid on the inner side and the outer side of the steel skeleton 502, heat-insulating rock wool provided between two layers of the hot-dip galvanized steel plates, a sealing aluminum single plate 504 provided between the heat-insulating structures on both sides of the gutter and roof panels and having a U-shaped cross section, and a perforated aluminum single plate 503 provided above the gutter and between the roof panels on both sides; the steel skeleton 502 is formed by splicing 50 x 5mm hot-dip galvanized steel pipes, the notches of the sealing aluminum veneers 504 on the two sides are arranged in a back-to-back mode, the top surface of the sealing aluminum veneers is 3% inclined towards the inner side of the gutter, the hot-dip galvanized steel plate on the outer side is turned up to the top surface of the heat preservation structure, and the lower side of the sealing aluminum veneers 504 is fixed with the hot-dip galvanized steel plate through a sealant; waterproof materials are arranged on the hot-dip galvanized steel plates on the outer sides of the gutter and comprise polyurethane waterproof paint (the thickness of the polyurethane waterproof paint is 2 mm), fiber mesh cloth, a yellow sand layer and polyurethane finish paint which are sequentially arranged from inside to outside (the polyurethane waterproof paint is coated twice), and the concrete construction method of the waterproof materials comprises the following steps: the polyurethane waterproof coating is brushed with the back which is sprinkled with yellow sand and fully covered with fiber mesh cloth, then the polyurethane finish paint is brushed twice, the total thickness of a dry film is 80um, the color is dark gray, the construction method of the waterproof material is the same, the waterproof material is required to return to the top surfaces of the sealed aluminum veneer 504 and the metal roof 300, the perforated aluminum veneer 503 is in a frame shape with a downward notch, elliptical perforations with the width of 30mm and the length of less than 90mm are arranged on the periphery and the top surface, the lower edge of the frame-shaped perforated aluminum veneer 503 is fixed with the aluminum veneer 316 through angle steel, the waterproof material is required to be positioned at the inner side of the perforated aluminum veneer 503,

as shown in fig. 9 and 10, the lighting roof 100 is arched and comprises a main steel structure of a net-shaped lighting roof and a glass panel 101 supported on the main steel structure of the net-shaped lighting roof through an aluminum profile, the main steel structure of the net-shaped lighting roof is an arched structure formed by splicing a plurality of triangular steel structures, every six triangular steel structures are enclosed and fixed outside a steel tube 102, the top surface of the steel tube 102 is sealed through a steel plate, a single glass panel 101 is adapted to the triangular steel structure, every six glass panels 101 are enclosed and fixed on a steel cylinder 103 arranged on the steel plate, a sealant and a structural adhesive are arranged between the glass panel 101 and the cylinder 103, the top surface of the steel cylinder 103 is sealed, the bottom is fixed with the steel plate through an angle steel, the aluminum profile is arranged below the splicing seam of the adjacent glass panels 101 or below the lower edge of the glass panel 101 close to the inner gutter 400, and comprises an H-shaped aluminum alloy press seat 104, an inverted F-shaped aluminum alloy subframe 105 and an aluminum alloy press block 106 for connecting the H-shaped aluminum alloy press seat 104 and the inverted F-shaped aluminum alloy subframe 105, the upper transverse part of the inverted F-shaped aluminum alloy auxiliary frame 105 is fixed below the glass panel 101 through double-sided structural adhesive, the aluminum alloy pressing block 106 is of a T-shaped structure, two sides of the transverse part of the T-shaped structure are pressed and fixed on the lower transverse parts of the inverted F-shaped aluminum alloy auxiliary frames 105 on two sides, the middle part of the T-shaped structure is fixed with a bolt notch arranged at the center of the transverse part of the H-shaped aluminum alloy pressing seat 104 through a bolt, the bottom surface of the transverse part of the T-shaped structure and two sides of the bolt are provided with screw rod limiting parts 107, the bolt notch comprises nut limiting parts 108 arranged at two sides of the bolt, the top surface of the nut limiting part 108 is an inwards concave groove, the bottom of the screw rod limiting part 107 is limited in the groove, adhesive tape limiting grooves 109 are respectively arranged on the transverse part of the H-shaped aluminum alloy pressing seat 104 and two sides of the nut limiting parts 108, a W-shaped adhesive tape 110 is arranged between the adhesive tape limiting grooves 109 on two sides, two sides of the W-shaped adhesive tape 110 are respectively limited in the adhesive tape limiting grooves 109 on two sides, two wave troughs in the middle part and the top surface of the transverse part of the H-shaped aluminum alloy pressing seat 104, the crest is pasted with nut locating part 108 top surface, H type aluminum alloy presses seat 104 to pass through U type groove 113 and netted daylighting top main part steel construction fixed, and the 113 notch in U type groove sets up downwards, and insulating gasket 112 has been laid to the top surface, and H type aluminum alloy presses the horizontal part of seat 104 to pass through the screw rod and fixes with U type groove 113, and the 113 bights in U type groove are the fillet, and the 113 notches in U type groove set up as required to the plane or with the inclined plane (fig. 6 is the inclined plane, fig. 10 is the plane).

In addition, the left side inverted F-shaped aluminum alloy auxiliary frame 105 of the aluminum profile located below the lower edge of the inner gutter 400 of the glass panel 101 is replaced by an inverted hook-shaped aluminum alloy auxiliary frame 111, the inverted hook-shaped aluminum alloy auxiliary frame 111 and the inner vertical part structure are fixed through bolts, a galvanized flat iron 114 is arranged between the inverted hook-shaped aluminum alloy auxiliary frame 111 and the glass panel 101, the galvanized flat iron 114 is fixed with the top surface of the U-shaped groove 113, the circumferential length of the galvanized flat iron 114 is 100mm, and the galvanized flat iron 114 is located at the 1/4 position of the lower edge of the glass panel 101.

Hot-galvanize channel-section steel connecting piece 301 is direct fixed with main steel structure 600, or fixed with the bracket 601 of locating on main steel structure 600, and the triangle-shaped bearing structure is formed for hot-galvanize angle steel concatenation to bracket 601, is located to be equipped with slant enhancement support 602 between hot-galvanize channel-section steel connecting piece 301 of inboard gutter 400 department and the main steel structure 600, and consequently, it is far away apart from main steel structure 600 to locate the roof boarding, and hot-galvanize channel-section steel connecting piece 301 is higher, consequently needs to strengthen hot-galvanize channel-section steel connecting piece 301's support intensity.

As shown in fig. 4, a reinforcing rib 319 is arranged in the aluminum single plate 316, and the end part and the bent part of the reinforcing rib 319 and the middle part are fixed with the bottom plate of the aluminum single plate 316 through an angle bracket and a bolt.

Being located 200 places of cornicing metal roofing 300 including locating main purlin 201 between steel structural beam 603, violently indulging the fossil fragments and laying the roof boarding on violently indulging the fossil fragments through what vertical through-connection structure 202 was connected with main purlin 201, being located and being equipped with light trough 203 on the roof boarding of cornicing 200 bottom surfaces, light trough 203 locates adjacent aluminium veneer 316 concatenation department, corresponds the setting with channel-section steel 315, steel structural beam 603 belongs to main steel structural 600, here violently indulges the fossil fragments and is formed by 60 by the stretch bending preparation of 4mm hot-galvanize square steel pipe.

The bottom surface of a bearing steel plate 310 of a keel adaptor above the daylighting roof 100 is sequentially provided with a stainless steel round steel pipe 320, a horizontal stainless steel connecting plate 321 and a vertical stainless steel connecting plate 322, namely in order to adapt to the structure of the daylighting roof 100, the keel adaptor above the daylighting roof 100 is different from the structure of the keel adaptor at other positions, the vertical stainless steel connecting plate 322 passes through a splicing seam of a glass panel 101 and is welded and fixed with the main steel of the reticular daylighting roof, the top surface of the bearing steel plate 310 is provided with four hot-galvanized angle steels 323 for fixing annular beams 325 (namely the four hot-galvanized square steels 311 are replaced by the hot-galvanized angle steels 323), the annular beams 325, the main purlins 302 and 201 of the hot-galvanized square pipes are all made of 120 × 80 × 4mm hot-galvanized square pipes, hot-galvanized secondary keels 324 are connected between adjacent annular beams 325 (namely the square pipes 313 are replaced by the hot-galvanized secondary keels 324), and the square pipes 313 are connected between the annular beams 325 and the square pipes 312, the square tube main keel 312 is formed by splicing a plurality of 90 × 60 × 4mm hot galvanized square tubes end to end, and the hot galvanized angle steel 323 and the hot galvanized angle steel secondary keel 324 are made of L50 × 50 × 5mm white fluorocarbon spray-coated hot galvanized angle steel.

Specific examples of the present application are provided below:

the whole roof is made of hyperbolic irregular metal plates except the daylighting top, the height is 0.000-23.542, the total area is about 8500 square, the plate specification is about 1500 x 2000mm, 2431 plates are totally, the frameworks are hyperbolic curved arcs, and the machining requirements of all components, the frameworks and the aluminum plates are different in size.

(1) High-precision modeling: modeling is carried out according to drawing nodes by adopting rhinoceros software, and models are built in the models according to the butt joint relations of the framework, the support, the aluminum plate folding edge and the like. The order of all materials can be accurately placed according to the model, all materials are numbered, and three-dimensional coordinates of all fixed point positions are provided;

(2) all hyperbolic irregular aluminum plates are divided into grids according to the models to be placed in order, a processing factory manufactures high-precision wood models according to the models, and pre-assembly is carried out after production is completed, so that the aluminum plates are prevented from being installed on the roof.

(3) And processing the galvanized steel square tube according to the serial number, and numbering. All point positions provide coordinates according to the model, the total station is equipped to pay off high-precision installation according to the point coordinates provided by the rhinoceros, and recheck is carried out after the installation is finished.

The metal roof installation steps are as follows:

1. installing a first layer of framework;

2. installing an iron plate and heat insulation cotton;

3. mounting a second layer of framework;

4. installing a waterproof iron plate;

5. mounting and gluing an aluminum plate;

6. cleaning after completion;

7. cornice and streamer mounting

Installing main materials on the first layer of framework: 16# galvanized steel channel (hot-galvanize channel-section steel connecting piece 301), 120 80 × 4mm galvanized square tube (hot-galvanize square tube main purline 302), the installation order is according to A-B-C-D-EF, AB is homonymy hot-galvanize channel-section steel connecting piece 301, EF is homonymy hot-galvanize channel-section steel connecting piece 301, C is the extreme point that hot-galvanize square tube main purline 302 is connected with A, D is the extreme point that hot-galvanize square tube main purline 302 is connected with B, E sets up with A relatively, F sets up with B relatively.

The method comprises the following specific steps:

(1) and (4) positioning and placing points by the total station according to the coordinates given by the BIM model, two-dimensional coordinates and elevation. The total station placing point is set according to the actual situation on site, because the roof is not good in the view of photovoltaic, the high point of the building should be selected, and the total station placing point needs to be moved frequently due to alternate operation. Therefore, the total station selects the column top of the main steel structure at a high point, and a surveyor operating platform is built. Considering that the main structure is not closed and has a certain deformation amount, the coordinate of the placement point is checked frequently to see whether the coordinate moves. The steel structure is taken up and is pitched the latent scaffold frame and set up and can't set up the target position, and it is too many to alternate operating personnel, leads to putting some personnel and removes the difficulty. Therefore, in summary, the construction period is ensured by increasing the number of the normal measuring instruments by 3 times.

(2) The roof has serious insertion operation and complete skeleton installation integrity, so the roof is considered to be processed on the ground. And processing steel according to the processing drawing corresponding to the data derived from the BIM model, and installing the drawing to write a corresponding number.

(3) And (3) installing AB channel steel: and finding out a corresponding coordinate point position (the coordinate point is arranged on the main steel structure beam) according to the drawing number by using a crane. One 16# galvanized steel channel (processing member) is hung and installed, and corresponds to two coordinate points. When the device is installed, the device is vertical to the horizontal plane when the device is installed by using a horizontal ruler or a hanging hammer auxiliary component. When main part steel construction girder steel slope was greater than 15 degrees, channel-section steel skew structure beam bottom increased the channel-section steel and increased the bracing to guarantee perpendicular atress, when being greater than 0 degree and being less than 15 degrees, the notch to one side was cut to the channel-section steel bottom, in order to guarantee perpendicular atress. In order to guarantee that the channel steel in the construction period is processed according to the processing data of the BIM model, if structural deviation occurs during hoisting, the channel steel is immediately rectified and modified according to the actual size condition so as to guarantee the installation of the next procedure. (consider loss 10%).

(4) Installation of a CD square tube (hot galvanizing square tube main purline 302): and finding out a corresponding coordinate point position (the coordinate point is printed on the channel steel) according to the drawing number, and using a crane. And one screw is hung to assist in positioning, and one galvanized square tube (processing component) with the length of 120 x 80 x 4mm corresponds to 4 coordinate points. Two of the 4 coordinate points are located square tube length direction, and the other two coordinate points control the square tube surface to be parallel to the completion. And (4) rechecking the point coordinates of the total station after the installation is finished so as to ensure the installation of the next procedure.

(5) And E, mounting the EF channel steel after rechecking is finished, wherein the mounting is required to be vertical to the horizontal plane, and tightening the square tube.

(6) And 5# angle iron @575mm is arranged perpendicular to the square tube, and the measuring tape or the range finder is used for measuring, returning the size to the ground for processing and hoisting.

(7) Full welding, welding slag cleaning and antirust paint.

The main material for installing the heat insulation cotton is as follows: 0.6mm thick galvanized steel sheet, 300 × 6mm galvanized steel sheet component, 50mm thick heat preservation cotton. The installation sequence is as follows: iron sheet-component-insulation cotton.

The method comprises the following specific steps:

(1) the galvanized steel plate with the thickness of 0.6mm is installed according to the arrangement position staggered arrangement of No. 5 angle steel, wherein the installation is larger than 50mm, and the installation sequence is from a low point to a high point. The 1220mm wide galvanized steel sheet is rolled up, cut according to the recheck size, hoisted by a crane, installed and fixed by self-tapping screws with the installation and fixing interval less than 300mm, staggered and fixed, and glue is injected at the lap joint position of the iron plates before installation. And after the installation is finished, the second glue injection sealing is carried out at the joint.

(2) 300 × 6mm galvanized steel sheet component installation, provide the coordinate according to the BIM model and beat the point, the point position is according to component connection position size cutting 0.6mm galvanized steel sheet opening, the welding installation processed component, full weld, remove the welding slag, brush the anti-rust paint, the opening part is beaten and is glued sealedly.

(3) 50mm thick heat preservation cotton installation, rock wool nail beat glue fix every square be no less than 8, cut rock wool installation after the glue is dry, two-layer heat preservation cotton need be greater than 50mm staggered joint and beat glue from top to bottom, surface course heat preservation cotton has aluminium foil paper, and the piece is the inseparable joint.

Mounting main materials of the second layer of framework: 90 60 by 4mm galvanized square tube (processed according to BIM model data in advance, the square tube main keel 312), 60 by 4mm galvanized square tube (processed according to BIM model data in advance, the square tube secondary keel 313) and 5# galvanized angle iron (an angle code for fixing the aluminum veneer) connecting piece. The installation sequence is as follows: dotting-90 × 60 × 4mm galvanized square tube-60 × 4mm galvanized square tube-rechecking.

The method comprises the following specific steps:

(1) the total station provides coordinate points according to the BIM model, the point points are marked on 300 × 300 galvanized steel plates, and the two-dimensional coordinates and the elevation are marked, such as the points of Y90-0008A and Y90-0006B. According to the processed 5# angle steel connecting piece with the point elevation, the projection position of 90 × 60 × 4mm galvanized square tube is drawn on the 300 × 300 galvanized steel plate, the 5# angle steel connecting piece on one side is fixed through spot welding, the 90 × 60 × 4mm galvanized square tube is positioned by using a horizontal ruler in an auxiliary mode (considering negative deviation), and the 90 × 60 × 4mm galvanized square tube is fixed through spot welding. Dots Y90-007A and Y90-0005B were struck again, two cases: 1. the point location is at the middle point of the upper surface skin end of the square tube, which indicates that the installation is correct, and the 5# angle steel connecting piece on the other side is fully welded; 2. and the point position is not positioned at the middle point of the upper surface skin end of the square tube, the member fixed by spot welding is adjusted according to the position of the point position, and the 5# angle steel connecting piece on the other side is fully welded after the adjustment is finished. During installation, the arch height direction of the square pipe needs to be noticed.

(2) According to the point positions Y90-007A and Y90-0005B which are arranged in a corresponding offset mode, the galvanized square tube with the thickness of 60 x 4mm is adopted. Need to pay attention to the lamp area position during the installation and need raise 30mm installation.

(3) And after the whole installation is finished, whether the installation position of the aluminum plate is in the center line of the keel is rechecked according to the point position placement point. And if the deviation is found, readjusting the framework, fully welding the whole body after the adjustment is finished, removing welding slag, and brushing antirust paint. Prevent weighing down the stainless steel installation, lightning protection installation is reserved

The main materials for installing the waterproof iron plate are as follows: 0.4mm thick galvanized steel sheet; sealing glue

The method comprises the following specific steps:

(1) the 1220mm wide galvanized steel sheet is rolled up, and is cut according to the size of a rechecked framework, the self-tapping screw is used for daubing, the installation and fixation intervals are smaller than 300mm, the steel sheet is fixed in a staggered mode, and glue is injected into the lap joint position of the iron plate and the upper surface of the framework before installation. And after the installation is finished, the second glue injection sealing is carried out at the joint.

The aluminum plate is installed and glued with the main materials: a hyperbolic aluminum veneer 3mm thick; sealing glue

The method comprises the following specific steps:

(1) before installation, firstly, according to an installation control point provided by a BIM model, placing a point and marking on a galvanized iron sheet with the thickness of 0.4 mm. And simultaneously rechecking the size of the straight edge of the aluminum veneer.

(2) The aluminum plate is large and easy to deform, so that the aluminum plate is selected to be hoisted and hung one by one. The frame has negative deviation during installation, and the height of the frame is adjusted by a rubber gasket during installation of the aluminum plate.

(3) Lightning protection, cleaning of glue seams, filling of foam rods and gluing.

This project eaves mouth and ribbon skeleton and main part steel construction interference ratio are serious, mean that aluminum plate installation does not have the adjustment space, and the skeleton need be according to the actual position of interfering in scene, cut off and install again. And (4) mounting the framework by spot welding according to the aluminum plate mounting control points provided by the BIM model, and fully welding after the adjustment is finished.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A metal roofing characterized in that: the hot-dip galvanized steel roof comprises a daylighting roof (100) positioned at the central part and a metal roof (300) paved by cornices (200) from the upper direction outside the daylighting roof (100), wherein annular gutter grooves are formed at the joint of the metal roof (300) and the daylighting roof (100) and at the lower position of the metal roof (300) around the roof, the metal roof (300) comprises a steel adaptor, a primary purlin structure and a secondary purlin structure, a heat insulation structure, a keel adaptor, a transverse longitudinal keel and a roof plate, the steel adaptor is sequentially connected with a main steel structure (600) from bottom to top, the primary purlin structure and the secondary purlin structure comprise a main hot-dip galvanized steel channel connector (301) arranged in the opposite directions, the main secondary purlin structure comprises a main hot-dip galvanized square pipe (302) and a secondary angle steel (304) arranged between the main hot-dip galvanized square pipe purlins (302) adjacent to each other, the main hot-dip galvanized square pipe purlins (302) are arranged at an included angle or positioned on the same straight line, the spliced end parts are positioned between the two hot galvanizing channel steel connectors (301) and are respectively fixed with the hot galvanizing channel steel connectors (301) on the two sides through stainless steel bolt groups (303); the heat insulation structure comprises an upper layer of galvanized steel plate (306), a lower layer of galvanized steel plate (306) and tinfoil paper heat insulation rock wool (307) which is arranged between the two layers of galvanized steel plates (306) in a staggered and superposed mode, wherein the tinfoil paper heat insulation rock wool (307) is fixed with the upper layer of galvanized steel plate (306) through a rock wool nail (308), and the lower layer of galvanized steel plate (306) is fixed with a main purline (302) of a hot galvanized square pipe through a flange plate self-tapping nail (305); the keel adapter comprises square steel pipe supports (309) sequentially arranged on a hot-galvanized square pipe main purline (302) from bottom to top, bearing steel plates (310) arranged on the top surfaces of the square steel pipe supports (309), and four hot-galvanized square steels (311) vertically arranged on the bearing steel plates (310); the transverse keel and the longitudinal keel comprise square pipe main keels (312) with the end parts fixed with the two hot galvanized square steels (311) and square pipe secondary keels (313) arranged between the adjacent square pipe main keels (312), and the square pipe secondary keels (313) and the square pipe main keels (312) are subjected to stretch bending treatment; the roof panel comprises a hot-dip galvanized steel plate laid on the transverse and longitudinal keels, and channel steel (315) and an aluminum single plate (316) which are arranged on the square pipe main keels (312) and the square pipe secondary keels (313), the aluminum single plate (316) is a hyperbolic irregular metal plate, the periphery of the aluminum single plate (316) is bent downwards, the inner side of the bent part is fixed by bolts after being attached to the inner side of a flange plate of the channel steel (315), and an angle code is arranged between the inner side of the bent part and the transverse and longitudinal keels;

daylighting top (100) include netted daylighting top main steel structure and support glass panels (101) on netted daylighting top main steel structure through the aluminium alloy, netted daylighting top main steel structure is formed by the concatenation of a plurality of triangle steel structures, every six the triangle steel structure encloses admittedly in steel pipe (102) outside, and steel pipe (102) top surface passes through steel sheet seal, and is monolithic glass panels (101) with triangle steel structure shape suits, every six glass panels (101) enclose admittedly and locate on steel tube (103) on the steel sheet, steel tube (103) top surface seal, and it is fixed with the steel sheet that the angle steel is passed through to the bottom, the aluminium alloy is located the below of adjacent glass panels (101) splice seam or glass panels (101) and is close to the below along under inboard gutter (400), presses seat (104), the vice frame of reverse F type aluminium alloy (105) and is used for connecting the aluminium alloy that H type aluminium alloy pressed seat (104) and vice frame (105) of reverse F type aluminium alloy pressed A block (106);

the hot galvanizing channel steel connecting piece (301) is directly fixed with the main steel structure (600) or fixed with a bracket (601) arranged on the main steel structure (600), the bracket (601) is a triangular supporting structure formed by splicing hot galvanizing angle steel, and an oblique reinforcing support (602) is arranged between the hot galvanizing channel steel connecting piece (301) at the inner side gutter (400) and the main steel structure (600).

2. A metal roofing as defined in claim 1, wherein: the circumferential gutter comprises an inner side gutter (400) and an outer side gutter (500), wherein the inner side gutter (400) is positioned below the transverse and longitudinal keel and along the lower edge of the daylighting roof (100), the outer side gutter (500) is positioned at the lower depression of the metal roof (300) and below the transverse and longitudinal keel, the left side top surface of the inner side gutter (400) far away from the daylighting roof (100) is higher than the right side top surface, the left side top surface comprises a bottom supporting steel pipe (401) supported between the longitudinal steel ribs of a main steel structure (600), a gutter steel frame (402) arranged on the bottom supporting steel pipe (401), hot galvanized steel plates laid on the inner side and the outer side of the gutter steel frame (402), and heat-insulating rock wool arranged between two layers of hot galvanized steel plates, wherein the hot galvanized steel plate on the outer side of the left side gutter upwards extends to a square tube secondary keel (313) to form a sealing plate between a heat-insulating structure and the roof plate, and the hot galvanized steel plate on the outer side of the right side gutter is sealed through a special-shaped aluminum single plate (403), the special-shaped aluminum single plate (403) comprises an outer side vertical structure, an oblique structure and an inner side vertical structure fixed with a daylighting roof (100) aluminum profile, wherein the oblique structure is in smooth oblique transition with the lower edge of the daylighting roof (100), the outer side gutter (500) comprises a gutter bottom supporting steel pipe (501) supported between longitudinal steel ribs of a main steel structure (600), a steel skeleton (502) arranged on the gutter bottom supporting steel pipe (501), hot galvanized steel plates laid on the inner side and the outer side of the steel skeleton (502), heat-insulating rock wool arranged between two layers of hot galvanized steel plates, a sealing aluminum single plate (504) with a U-shaped cross section and arranged between the heat-insulating structures on the two sides of the gutter and a roof panel, and a perforated aluminum single plate (503) arranged above the gutter and between the roof panels on the two sides; the notches of the sealing aluminum veneers (504) on the two sides are arranged in a back-to-back mode, the top surface of the sealing aluminum veneers is 3% inclined towards the inner side of the gutter, the hot-dip galvanized steel plate on the outer side of the sealing aluminum veneers (504) is turned upwards to the top surface of the heat insulation structure, and the lower sides of the sealing aluminum veneers (504) are fixed with the hot-dip galvanized steel plate through sealants; polyurethane waterproof paint, fiber mesh cloth, a yellow sand layer and polyurethane finish paint are arranged on the hot-dip galvanized steel plate on the outer side of the gutter from inside to outside, and an overflow pipe (505) and a water falling pipe (506) are arranged at the bottoms of the inner gutter (400) and the outer gutter (500).

3. A metal roofing as defined in claim 1, wherein: the upper transverse part of the inverted F-shaped aluminum alloy auxiliary frame (105) is fixed below the glass panel (101) through double-sided structural adhesive, the aluminum alloy pressing block (106) is of a T-shaped structure, two sides of the transverse part of the T-shaped structure are pressed and fixed on the lower transverse parts of the inverted F-shaped aluminum alloy auxiliary frames (105) on two sides, the middle part of the T-shaped structure is fixed with a bolt notch arranged at the center of the transverse part of the H-shaped aluminum alloy pressing seat (104) through a bolt, screw limiting parts (107) are arranged on the bottom surface of the transverse part of the T-shaped structure and two sides of the bolt, the bolt notch comprises nut limiting parts (108) arranged on two sides of the bolt, the top surface of each nut limiting part (108) is an inwards concave groove, the bottom of each screw limiting part (107) is limited in the corresponding groove, adhesive tape limiting grooves (109) are respectively arranged on the transverse part of the H-shaped aluminum alloy pressing seat (104) and two sides of each nut limiting part (108), and a W-shaped adhesive tape (110) is arranged between the adhesive tape limiting grooves (109) on two sides, two sides of the W-shaped rubber strip (110) are respectively limited in the rubber strip limiting grooves (109) at two sides, two wave troughs at the middle part are adhered to the top surface of the transverse part of the H-shaped aluminum alloy pressing seat (104), and wave crests are adhered to the top surface of the nut limiting part (108).

4. A metal roofing as defined in claim 1, wherein: h type aluminum alloy presses seat (104) to pass through U type groove (113) to be fixed with netted daylighting top main part steel construction, U type groove (113) notch sets up downwards, and insulating gasket (112) have been laid to the top surface, and H type aluminum alloy presses horizontal portion of seat (104) to pass through the screw rod to be fixed with U type groove (113), U type groove (113) bight is the fillet.

5. A metal roofing as defined in claim 1, wherein: be equipped with strengthening rib (319) in aluminium veneer (316), strengthening rib (319) tip with department of buckling, middle part and aluminium veneer (316) bottom plate pass through angle sign indicating number and bolt fastening.

6. A metal roofing as defined in claim 1, wherein: be located eaves (200) department metal roofing (300) including locating main purlin (201) between steel structural beam (603), violently indulge the fossil fragments and lay the roof boarding on violently indulging the fossil fragments through vertical transition structure (202) and being connected with main purlin (201), be located eaves (200) bottom surface be equipped with light trough (203) on the roof boarding, adjacent aluminium veneer (316) concatenation department is located in light trough (203), corresponds the setting with channel-section steel (315).

7. A metal roof as claimed in claim 4, wherein: the left inverted-F-shaped aluminum alloy auxiliary frame (105) of the aluminum profile, located below the lower edge of the inner gutter (400) of the glass panel (101), is replaced by an inverted-hook-shaped aluminum alloy auxiliary frame (111), the upper portion of the vertical portion of the inverted-hook-shaped aluminum alloy auxiliary frame (111) and the structure of the inner vertical portion are fixed through bolts, a galvanized flat iron (114) is arranged between the inverted-hook-shaped aluminum alloy auxiliary frame (111) and the end portion of the glass panel (101), and the galvanized flat iron (114) is fixed to the top surface of the U-shaped groove (113).

8. A metal roof covering according to claim 4, wherein: the bottom surface of a bearing steel plate (310) of the keel adaptor above the daylighting roof (100) is sequentially provided with a stainless steel round steel pipe (320), a horizontal stainless steel connecting plate (321) and a vertical stainless steel connecting plate (322), and the vertical stainless steel connecting plate (322) penetrates through a splicing seam of the glass panel (101) and is welded and fixed with the main body steel of the reticular daylighting roof.

9. A metal roof covering according to claim 4, wherein: four hot-dip galvanized angle steels (323) used for fixing the annular beam (325) are arranged on the top surface of a bearing steel plate (310) of the keel adapter positioned above the daylighting roof (100), the annular beam (325) is formed by splicing a plurality of 120-80-4 mm hot-dip galvanized square tubes end to end, a hot-dip galvanized angle steel secondary keel (324) is connected between every two adjacent annular beams (325), a square tube secondary keel (313) is connected between the annular beam (325) and the square tube primary keel (312), and the square tube primary keel (312) is formed by splicing a plurality of 90-60-4 mm hot-dip galvanized square tubes end to end.

Images