CN114856188B - Construction method for mounting special-shaped roof - Google Patents
Construction method for mounting special-shaped roof Download PDFInfo
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- CN114856188B CN114856188B CN202110147763.9A CN202110147763A CN114856188B CN 114856188 B CN114856188 B CN 114856188B CN 202110147763 A CN202110147763 A CN 202110147763A CN 114856188 B CN114856188 B CN 114856188B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
Abstract
The application relates to the technical field of building construction, in particular to a construction method for installing a special-shaped roof, which comprises the following steps: step one, site survey: measuring the coordinate value of the original steel structure, the coordinate of the top of the column and the error of the original steel structure; step two, inputting a model: inputting the coordinates measured in the first step into a BIM model, and observing whether collision occurs in the model; step three, construction positioning: positioning the height of the purlin supporting plate before site construction, and producing and processing the purlin supporting plate; fourth, first installation: the purlin supporting plate, the purlin, the roof bottom plate, the split heads and the lining purlins are sequentially installed on the original steel structure; step five, second installation: the device comprises a mounting support, a roof board, a clamp and a decorative board keel; step six, processing the aluminum veneer and the secondary joist; and step seven, mounting a fish scale-shaped aluminum veneer. The application has the installation and construction efficiency of improving special-shaped metal roofing.
Description
Technical Field
The application relates to the technical field of building construction, in particular to a construction method for installing a special-shaped roof.
Background
At present, along with the rapid development of the industry in China, steel structure houses, especially light steel roof structures, are increasingly widely applied to industrial buildings due to the advantages of light dead weight, good anti-seismic performance, fast construction progress, large span, large space at the lower part of the roof and the like, and along with the further improvement of the development level of the building engineering in China, the house quality of the current steel structure is increasingly good, which is mainly determined based on excellent structural design, on one hand, the steel structure house is characterized by being lighter than common materials, on the other hand, the steel structure house is superior to other structures in anti-seismic performance, and has certain superiority in the aspects of construction progress and the like.
The steel structure roof has been used widely, the light steel roof has the advantages of light weight, high strength, beautiful appearance, shock resistance, simple construction and the like because of being compared with the traditional heavy roof, but the installation construction of the special-shaped metal roof is still a difficult point in construction so far, the traditional two-dimensional design construction drawing is difficult to show the effect after the special-shaped metal roof is formed, the construction unit is always checked whether the drawing has a defect according to the construction experience in the early stage, the layout is reasonable or not, and the rationality of the drawing is difficult to be comprehensively considered because of the limitation of the two-dimensional data, so the research on the BIM technology of the new technology is very necessary to fully play the advantage of the three-dimensional data.
Disclosure of Invention
In order to improve the installation and construction efficiency of the special-shaped metal roof, the application provides a construction method for installing the special-shaped metal roof.
The construction method for installing the special-shaped roof adopts the following technical scheme:
a construction method for installing a special-shaped roof comprises the following steps:
step one, site survey: measuring the coordinate value of the original steel structure, the coordinate of the top of the column and the error of the original steel structure;
step two, inputting a model: inputting the coordinates measured in the first step into a BIM model, creating each layer structure of the roof in the model according to the model given by the design institute, simulating the coordinates actually measured in the first step on site, and observing whether collision occurs in the model;
step three, construction positioning: positioning the height of the purlin supporting plate before site construction, and producing and processing the purlin supporting plate;
fourth, first installation: the purlin supporting plate, the purlin, the roof bottom plate, the split heads and the lining purlins are sequentially installed on the original steel structure;
step five, second installation: the device comprises a mounting support, a roof board, a clamp and a decorative board keel;
step six, processing the aluminum veneer and the secondary joist;
and step seven, mounting a fish scale-shaped aluminum veneer.
Through adopting above-mentioned technical scheme, through leading-in three-dimensional modeling software with the position coordinate of steel construction skeleton, and carry out space combination simulation with roof boarding and steel construction skeleton in three-dimensional modeling software, just can confirm the size and the position of the support plate of the awkward that installs between girder steel and roof boarding, make when installing, just can install the support plate of the awkward on the girder steel directly, and be convenient for follow-up roof boarding and the installation of fish scale form aluminium veneer, and the radian after the installation accords with the design requirement, need not to adjust and rework, the installation is more accurate fast. The purpose of quickly constructing the special-shaped roof is achieved.
Optionally, when the position coordinates of the original steel structure are measured in the first step, the position coordinates of the two ends of the steel beam and the coordinates of the top of the roof top pillar need to be determined, and an error of the position coordinates of the original steel structure needs to be measured.
Through adopting above-mentioned technical scheme, only need measure the coordinate value at every girder steel both ends, just can obtain the position coordinate of steel construction skeleton, and the coordinate measurement at both ends is more convenient.
Optionally, when the construction positioning is performed in the third step, the position and the height of the purlin supporting plates are required to be positioned before the construction, the positions of the purlin supporting plates on two sides of the roof board are determined according to the bending radian in the roof board model at the design position, a straight line is determined through two points, and the positions of the purlin supporting plates are determined in a mode that one arc is determined through three points; the position of the purlin supporting plate in the middle of the roof panel is determined by connecting two purlin supporting plates on two sides, and the intersection point of the connecting lines and the middle steel girder; when the size of the purlin pallet is determined, the length of the purlin pallet is determined through the distance between the steel beam and the roof board, and the inclination angle of the purlin pallet is determined through the normal direction of the roof board.
By adopting the technical scheme, the mounting positions and the number of the support plates can be determined through the bending radian of the roof plate, so that the support effect of the support plates on the roof plate is better; when the position of the purlin supporting plate is determined, the position of the awkward supporting plate positioned on the middle steel beam can be directly obtained only by determining the positions of the awkward supporting plates on two sides of the roof board, and the operation is more convenient; when the size of the purlin pallet is determined, the length of the supporting plate positioned between the steel beam and the roof board can be directly determined due to the determination of the position between the steel beam and the roof board, and the inclination angle of the supporting plate can be determined by the normal line of the arc surface of the roof board, so that the upper surface of the supporting plate is perpendicular to the normal line of the roof board, and the roof board mounted on the supporting plate meets the designed radian requirement.
Optionally, when step four is first installed, with purlin backing plate fixed connection on the girder steel to with purlin and purlin backing plate connection, after the purlin installation, check the position of purlin, cut off the unnecessary length at every purlin both ends, then from down up installation roofing bottom plate, split heads, lining purlin and roof boarding in proper order on the purlin.
Through adopting above-mentioned technical scheme, check the position of every purlin, guarantee that the mounted position of purlin is unanimous with the mounted position of design, cut unnecessary part in every purlin both ends, guarantee that the length of purlin is unanimous with the width of aluminium magnesium manganese roof boarding, guarantee that the molding of special-shaped roofing after the installation reaches expected requirement, after confirming mounted position and the size of purlin, on the purlin at installation roofing bottom plate, split heads, lining purlin and roof boarding in proper order.
Optionally, during the second installation, determining the installation position of the support according to the position and the size of each roof board, and determining the size of the roof board according to the arch height of the roof board and the arch height of the roof board; the two sides of the roof board are mounted on the support by the clamp, and the decorative board keel is mounted on the clamp.
Through adopting above-mentioned technical scheme, because the support is mainly supported fixedly to the mounting panel, through position and the size of confirm the mounting panel, can confirm the position of the support that is used for supporting the mounting panel.
Optionally, a heat insulation layer, a waterproof layer, a dampproof layer and a sound absorption layer are arranged between the roof bottom plate and the roof plate.
Through adopting above-mentioned technical scheme, heat preservation, waterproof layer, dampproof course and the attraction layer that set up can guarantee indoor temperature, prevent the effect of indoor rain leakage and dampproofing and sound insulation.
Optionally, in the sixth step, the aluminum veneer and the secondary joist are fixedly installed in advance, and the aluminum alloy hook is installed on the secondary joist.
Through adopting above-mentioned technical scheme, according to the data that obtains in the model, in the mill in advance come out aluminium veneer and thorn fossil fragments to with aluminium veneer and secondary joist rigid coupling into an organic whole, convenient subsequent installation has improved installation effectiveness greatly, aluminium veneer and secondary joist are installed the back, mark, in the in-process of scene actual installation, construct according to the sign can.
Optionally, in the seventh step, the aluminum alloy hooks are sequentially installed according to the serial numbers of the processed aluminum veneers, so that the aluminum alloy hooks are connected to the aluminum alloy hanging seats.
By adopting the technical scheme, the position and the size of the fish scale-shaped aluminum veneer are determined when the drawing is designed, so that data can be directly extracted from the three-dimensional model, and the installation position of the connecting component can be determined by installing the connecting component at the lower end of the hook on the fish scale-shaped aluminum veneer, so that the subsequent installation of the fish scale-shaped aluminum veneer is facilitated.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the position coordinates of the steel structure framework are led into the three-dimensional modeling software, and the roof board and the steel structure framework are subjected to space combination simulation in the three-dimensional modeling software, so that the size and the position of the support plate installed between the steel beam and the roof board can be determined, the support plate can be directly installed on the steel beam during installation, the installation of the follow-up roof board and the fish scale-shaped aluminum single board is facilitated, the radian after the installation meets the design requirement, the adjustment and the reworking are not needed, and the installation is faster and more accurate. The aim of quickly constructing the special-shaped roof is fulfilled;
2. when the position and the size of the purlin supporting plates are determined, the installation positions and the number of the supporting plates can be determined through the bending radian of the roof plate, so that the supporting effect of the supporting plates on the roof plate can be better; when the position of the purlin supporting plate is determined, the position of the awkward supporting plate positioned on the middle steel beam can be directly obtained only by determining the positions of the awkward supporting plates on two sides of the roof board, and the operation is more convenient; when the size of the purlin pallet is determined, the length of the supporting plate positioned between the steel beam and the roof board can be directly determined due to the determination of the position between the steel beam and the roof board, and the inclination angle of the supporting plate can be determined by the normal line of the arc surface of the roof board, so that the upper surface of the supporting plate is perpendicular to the normal line of the roof board, and the roof board mounted on the supporting plate meets the designed radian requirement.
Drawings
FIG. 1 is a schematic flow diagram of an embodiment of the present application;
FIG. 2 is a schematic view of the overall construction of the roofing structure of the present application;
fig. 3 is a schematic structural view of a connection assembly embodied in the present application.
Reference numerals illustrate: 1. a steel beam; 2. roof boarding; 21. buckling edges; 3. purlin supporting plate; 4. purlin; 5. a split heads; 6. lining; 7. a support; 71. a fixing plate; 72. a support plate; 73. a clamping column; 9. a clamp; 91. a first clamping plate; 92. a first channel steel; 93. a second clamping plate; 10. a connection assembly; 101. angle steel; 102. a second channel steel; 103. a hook; 104. and a limit bolt.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses a construction method for installing a special-shaped roof, which comprises the following steps:
step one: and measuring the position of the built original steel structure on site, and measuring the position coordinates of the two ends of each steel beam 1 during measurement, wherein the coordinates can adopt the coordinate values of a Chinese coordinate network, so that the coordinates of the steel structure on the space position are obtained, and in the measurement process, the coordinates of the top end of the roof top column and the error between the original steel structure and the actually measured data are measured.
Step two: and modeling by using BIM technology, inputting coordinate values of two ends of each steel beam 1 on the steel structure in the first step into BIM modeling software, thereby generating a three-dimensional model of the roof steel structure in the software, then creating each layer structure of the roof in the model, and performing space fitting in the three-dimensional model, so that the position relationship between the steel structure and each layer structure of the roof at a clear display position in the three-dimensional model can be realized. The three-dimensional modeling software can be rhinoceros software, has wider application range, can quickly make architectural modeling of various graceful curved surfaces, and is very convenient to operate.
Install purlin layer board 3 and purlin 4 between steel construction and the roofing bottom plate, wherein purlin layer board 3 is U type channel-section steel, and purlin layer board 3 sets up perpendicularly with steel construction's girder steel 1, purlin layer board 3 can pass through welded mode fixed connection on girder steel 1, purlin layer board 3 is provided with a plurality ofly along its length direction equidistance interval on every girder steel 1, two purlin layer boards 3 on every girder steel 1 are a set of, the opening of two purlin layer boards of same group sets up towards the direction that is opposite to, form the installation space that is used for supplying purlin 4 embedding between two purlin layer boards 3, purlin 4 is perpendicular with every girder steel 1, and purlin 4 can install between two purlin layer boards 3 on girder steel 1, pass through bolt fixed connection between purlin layer board 3 and the purlin 4, wherein the lower surface of purlin 4 does not contact between girder steel 1.
A plurality of square-shaped split heads 5 are uniformly and fixedly connected to each purline 4 along the length direction of the purline through self-tapping screws, the opening direction of each split head 5 is perpendicular to the length direction of the purline 4, a plurality of square-shaped lining bars 6 are fixedly connected to the plurality of split heads 5 positioned on the same purline 4 through self-tapping screws, and each lining bar 6 is connected with a plurality of split heads 5; a plurality of supports 7 which are integrally in an inverted T shape are uniformly fixedly connected on the surface of the bushing 6 far away from the split heads 5 along the length direction, and the supports 7 comprise a fixed plate 71 fixedly connected on the bushing 6, a supporting plate 72 vertically fixedly connected on one side of the fixed plate 71 far away from the bushing 6 and a clamping column 73 fixedly connected on one side of the supporting plate 72 far away from the fixed plate 71.
The roof bottom plate is formed by splicing a plurality of mounting plates, two opposite sides of each mounting plate are outwards bent to form buckling edges 21, and the roof bottom plate can be mounted by wrapping the buckling edges 21 on the clamping columns 73. When the distance between the steel beam 1 and the roof bottom plate is in error with the distance in the expected design, the installation height of the purline 4 can be adjusted by changing the height of the supporting plate, so that the roof bottom plate installed on the support 7 meets the expected design requirement.
Step three: the construction positioning is carried out, the position and the size of the purlin supporting plate 3 are required to be positioned during site construction, and the purlin supporting plate 3 is produced and processed according to the determined position and size; in BIM modeling software, the installation positions and the installation quantity of purlin supporting plates 3 are determined, a straight line is determined through two points, an arc is determined through three points, and the positions and the quantity of the purlin supporting plates 3 to be installed are determined according to the bending radian of the designed roof bottom plate. When the number of purlin supporting plates 3 is determined, the positions of the purlin supporting plates 3 on two sides of a roof bottom plate are determined, two purlin supporting plates 3 on two sides in the same horizontal plane are connected, and the intersection point between the connecting line and the middle steel girder 1 is the position of the purlin supporting plates 3 fixedly connected on the middle steel girder 1, so that the number of the purlin supporting plates to be installed and the position of each supporting plate in the moment can be determined. And then the length of the emergency supporting plate can be determined according to the distance between the steel beam 1 and the roof bottom plate at the installation position of the emergency supporting plate, the lower surface of the emergency supporting plate is perpendicular to the normal direction of the arc surface of the roof bottom plate at the emergency supporting plate, and the inclination angle between the emergency supporting plate and the steel beam 1 can be determined, so that the installation position and the installation quantity of the emergency supporting plate which need to be installed and the length and the inclination angle of the emergency supporting plate at different positions are finally determined.
And processing the supporting plates, recording the number of the supporting plates which are required to be installed, the length, the inclination angle and other dimensions of each supporting plate, processing each supporting plate according to the record, and marking each supporting plate after processing so as to facilitate the subsequent installation.
Step four: the method comprises the steps of firstly installing, finding out coordinates of the awkward supporting plates in a three-dimensional model according to the marks of the awkward supporting plates, positioning the awkward supporting plates on a construction site through positioning equipment such as a GPS (global positioning system), positioning the positions where the awkward supporting plates need to be installed, and fixedly installing each awkward supporting plate on the corresponding coordinate positions; mounting purlines 4, namely mounting the purlines 4 in a mounting space formed between two different supporting plates in the same group through bolts, and positioning the positions of the two ends of the purlines 4, wherein the width of a roof bottom plate is gradually changed along with the inclination angle and the height of a roof, so that after the purlines 4 are mounted, the positions of the two ends of each purline 4 and the positions in a three-dimensional model are checked, and redundant parts of the two ends of the purlines 4 are cut off to meet the mounting width of a system; after the installation of the purlines 4 is completed, paving the roofing bottom plate on a plurality of purlines 4 through self-tapping screws; after the installation split heads 5 and lining purlins are paved, the split heads 5 are fixedly connected to the purlins 4, the opening Fang Xi of each split head 5 is perpendicular to the length direction of each purlin 4, and the lining purlins which are strip-shaped are installed on the surfaces of the split heads 5 located on the same purlin 4 and the split heads 5 away from the purlins 4, so that each lining purlin is connected with a plurality of split heads 5.
Step five: and for the second time, firstly, installing the support 7 on the lining purlin. The installation position of the support 7 needs to be determined in the three-dimensional model before the support 7 is installed, the installation position of the support 7 needs to be determined according to the position of the roof board 2 because the support 7 is installed on the lower side of the roof board 2, the size and the coordinates of each installation plate need to be determined firstly because the roof board 2 is formed by splicing a plurality of installation plates, the width of each installation plate is 430mm, and the length of each installation plate needs to be determined according to the bending radian and the arch height of the roof. Since the mounting plate itself is rectangular plate-like, and both sides are provided with the fastening edges 21 which are fitted with the support 7, the mounting plate can be bent only in the width direction, and cannot be bent in the length direction. When confirming the length of every mounting panel, can break the mounting panel in circular arc kink department according to the arch height of roofing for a plurality of mounting panels splice the crooked radian that forms the established roofing jointly, thereby can confirm the length and the coordinate of every mounting panel. The mounting positions and the number of the mounts 7 can then be determined from the positions of the mounting plates, and finally the mounts 7 are mounted on the bushing 6 according to the mounting positions determined in the three-dimensional model.
Before the roof board 2 is installed, a sound absorption layer, a moisture-proof layer, a waterproof layer and a heat preservation layer are sequentially paved between a roof bottom plate and the roof board 2 from bottom to top, sound absorption cotton with the specification of 50mm thick is paved, the volume weight is 24kg/m, and a layer of white non-woven fabric is paved on the upper surface of the roof bottom plate when the sound absorption layer is paved; the laid moisture-proof layer is a PE moisture-proof film; the waterproof layer laid is a waterproof breathable film with the thickness of 0.49 mm; the heat preservation is the heat preservation rock wool of bilayer 75mm thick, and the bulk density is 140kg/m to when laying the heat preservation, need carry out the staggered joint overlap joint between every heat preservation, prevent that heat from losing in the gap between two adjacent heat preservation, the staggered joint concatenation has effectively increased thermal insulation properties.
After the sound absorption layer, the moisture-proof layer, the waterproof layer and the heat preservation layer are paved on the roof bottom plate, the roof plate 2 is installed, and the buckling edges 21 on two sides of the roof plate 2 are clamped on the clamping posts 73 of the supporting seat, so that the installation of the roof plate 2 is completed; the support seat is provided with the fixture 9, after the two sides of the roof board 2 are installed on the clamping columns 73, the fixture 9 is installed on the support seat 7, the roof board 2 is fixedly connected to the support seat 7, the fixture 9 is arranged at intervals along the length direction of the lining 6, the support seat comprises a first clamping plate 91, a first channel steel 92 fixedly connected to one end of the first clamping plate 91, far away from the clamping columns 73, and a second clamping plate 93 connected to one side of the first clamping plate 91 through bolts, the first clamping plate 91 and the second clamping plate 93 are outwards bent towards one end of the clamping columns 73 to form clamping grooves for embedding the clamping columns 73 and the buckling edges 21, and the opening of the first channel steel 92 faces to one side, far away from the first clamping plate 91, for embedding decorative plate keels. The decorative board fossil fragments length direction is unanimous with several style of calligraphy lining, and simultaneously imbeds in the opening of a plurality of first channel-section steel 92 of same length direction.
Step six: processing an aluminum veneer and a secondary keel;
before the squamous aluminium veneer of installation fish, accomplish aluminium veneer and secondary joist processing in the mill in advance, the secondary joist is rectangular frame structure, and the secondary joist is installed in aluminium veneer towards the one side of decorative board fossil fragments to when processing, become integrative with aluminium veneer and secondary joist fixed connection, make things convenient for subsequent installation, improve installation effectiveness.
Step seven: mounting a fish scale-shaped aluminum veneer;
be provided with coupling assembling 10 between decorative board fossil fragments and secondary joist, coupling assembling 10 that sets up can install aluminium veneer on decorative board fossil fragments, coupling assembling 10 is provided with a plurality ofly along decorative board fossil fragments's length direction interval, four coupling assembling 10 are a set of, fixed connection respectively is in secondary joist orientation decorative board fossil fragments one side and be located four angular position departments of secondary joist, coupling assembling 10 is including two angle steel 101 of rigid coupling in decorative board fossil fragments relative both sides and the second channel-section steel 102 of rigid coupling on two angle steel 101, the second channel-section steel 102 opening is used for being connected with aluminium veneer towards one side of keeping away from decorative board fossil fragments.
After the roof board 2 is installed, the clamping grooves formed by the first clamping plate 91 and the second clamping plate 93 are directly clamped on the clamping columns 73, the positions of the first clamping plate 91 and the second clamping plate 93 are fixed through bolts, then the decorative board keel is fixed in the opening of the first channel steel 92, and the connecting assembly 10 is fixed on the decorative board keel.
Because the connecting component 10 is directly matched with the aluminum veneer in an installation way, the position and the size of the aluminum veneer are designed according to the required modeling when the drawing is designed, and the position and the size of the aluminum veneer can be directly extracted from the three-dimensional modeling software and are fixed. Therefore, the position of the connecting component 10 to be installed can be determined by the position and the size of the aluminum veneer, and when the installation position of the connecting component 10 is determined, the center of the second channel steel 102 is consistent with the center of the hook 103 on the aluminum veneer, so that the hook 103 on the aluminum veneer can be conveniently installed on the connecting component 10 subsequently. After the decoration plate keel is installed, the installation position of the connecting component 10 is directly positioned on the construction site, and finally the connecting component 10 is installed on the decoration plate keel through bolts.
And then extracting the position and the size of each fish scale-shaped aluminum veneer from the three-dimensional modeling software, marking, processing according to the size of each extracted fish scale-shaped aluminum veneer, and marking on each fish scale-shaped aluminum veneer after processing is finished. When in field installation, each fish scale-shaped aluminum veneer is directly installed on the connecting component 10 at the corresponding position. Specifically, the hook 103 on the fish scale-shaped aluminum veneer is directly placed into the opening of the second channel steel 102, then the fish scale-shaped aluminum veneer is slid so that the limit groove on the hook 103 can be hooked on the limit bolt 104, two limit nuts are screwed, and the fish scale-shaped aluminum veneer can be installed by fixing the position of the hook 103 through the two limit nuts.
The implementation principle of the construction method for installing the special-shaped roof is as follows: in the process of installing the roof board 2, the installation position and the size of the awkward supporting plate are determined according to the three-dimensional model by means of the three-dimensional modeling software, and then the awkward supporting plate is subjected to the order processing, so that the awkward supporting plate after the processing is finished can be directly installed. By determining the mounting position of the abutment 7 and the dimensions of the mounting plate in the three-dimensional model, the abutment 7 and the roof board 2 can be mounted directly on the bushing 6, and finally the connection assembly 10 is mounted again, and the hooks 103 on the fish scale aluminium veneer are hooked in the limit bolts 104 on the second channel steel 102. All the dimensions are calculated on the three-dimensional model, so that the installation and fixation can be directly carried out at the corresponding position during the installation, and the installation is very convenient.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. A construction method for installing a special-shaped roof is characterized by comprising the following steps: the method comprises the following steps:
step one, site survey: measuring the coordinate value of the original steel structure, the coordinate of the top of the column and the error of the original steel structure;
step two, inputting a model: inputting the coordinates measured in the first step into a BIM model, creating each layer structure of the roof in the model according to the model given by the design institute, simulating the coordinates actually measured in the first step on site, and observing whether collision occurs in the model;
step three, construction positioning: positioning the height of the purlin supporting plate (3) before site construction, and producing and processing the purlin supporting plate (3);
fourth, first installation: the purlin supporting plate (3), the purlin (4), the roof bottom plate, the split heads (5) and the lining purlin are sequentially arranged on the original steel structure;
step five, second installation: the mounting support (7), the roof board (2), the clamp (9) and the decorative board keel; the installation position of the support (7) is determined according to the position and the size of each roof board (2), and when the size of the roof board (2) is determined, the determination is required according to the arched height of the roof board (2) and the arched height of the roof board (2) per se; mounting two sides of the roof board (2) on the support (7) through the arranged clamps (9), and mounting the decorative board keels on the clamps (9);
step six, processing the aluminum veneer and the secondary joist; fixedly mounting an aluminum veneer and a secondary keel in advance, and mounting a set aluminum alloy hook (103) on the secondary keel;
step seven, installing fish scale-shaped aluminum veneers, numbering the plates according to the processed aluminum veneers, and installing the aluminum alloy veneers in sequence, so that the aluminum alloy hooks (103) are connected to the aluminum alloy hanging seats.
2. The method for constructing the special-shaped roof installation according to claim 1, wherein the method comprises the following steps: when the position coordinates of the original steel structure are measured in the first step, the position coordinates of the two ends of the steel beam (1) and the coordinates of the top of the roof top column are required to be determined, and errors of the position coordinates of the original steel structure are required to be measured.
3. The method for constructing the special-shaped roof installation according to claim 1, wherein the method comprises the following steps: when the construction positioning is carried out, the position and the height of the purlin supporting plates (3) are required to be positioned before the construction, the positions of the purlin supporting plates (3) on two sides of the roof plate (2) are determined according to the bending radian in a roof plate (2) model at the design position, a straight line is determined through two points, and the positions of the purlin supporting plates (3) are determined in a mode that an arc is determined through three points; the position of the purlin supporting plate (3) in the middle of the roof board (2) is determined by connecting two purlin supporting plates (3) on two sides, and the connecting line is intersected with the middle steel beam (1); when the size of the purlin supporting plate (3) is determined, the length of the purlin supporting plate (3) is determined through the distance between the steel beam (1) and the roof board (2), and the inclination angle of the purlin supporting plate (3) is determined through the normal direction of the roof board (2).
4. The method for constructing the special-shaped roof installation according to claim 1, wherein the method comprises the following steps: when step four is installed for the first time, purlin layer board (3) fixed connection is on girder steel (1) to with purlin (4) and purlin layer board (3) are connected, after purlin (4) installation, check the position of purlin (4), cut off the unnecessary length at every purlin (4) both ends, then from last roofing bottom plate, split heads (5), lining purlin and roof boarding (2) of installing down in proper order on purlin (4).
5. The method for constructing the special-shaped roof installation according to claim 1, wherein the method comprises the following steps: an insulating layer, a waterproof layer, a dampproof layer and a sound absorbing layer are arranged between the roof bottom plate and the roof plate (2).
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| CN114856188B true CN114856188B (en) | 2023-07-14 |
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| CN116607685B (en) * | 2023-07-11 | 2023-09-22 | 北京建工四建工程建设有限公司 | Curved roof construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4168596A (en) * | 1977-05-06 | 1979-09-25 | The Ceco Corporation | Standing seam metal roof structure and method of assembly |
| CN102518266B (en) * | 2011-11-30 | 2014-08-27 | 哈尔滨工业大学空间钢结构幕墙有限公司 | Waterproof thermal-insulated metal roof |
| CN209339464U (en) * | 2018-10-19 | 2019-09-03 | 中建三局基础设施建设投资有限公司 | A kind of novel waterproof air previous metal Roof |
| CN109784004B (en) * | 2019-04-02 | 2023-05-26 | 中国十七冶集团有限公司 | BIM technology-based special-shaped metal roof installation construction method |
| CN110056137A (en) * | 2019-04-30 | 2019-07-26 | 中国十七冶集团有限公司 | A kind of profiled metal roofing Parametric designing construction method based on BIM technology |
| CN111042449A (en) * | 2020-01-14 | 2020-04-21 | 中建一局集团建设发展有限公司 | Wave crest fixed metal roof structure and construction method thereof |
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