CN108222390B - Rice-shaped bamboo decorative steel framework and construction method - Google Patents
Rice-shaped bamboo decorative steel framework and construction method Download PDFInfo
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- CN108222390B CN108222390B CN201711441568.7A CN201711441568A CN108222390B CN 108222390 B CN108222390 B CN 108222390B CN 201711441568 A CN201711441568 A CN 201711441568A CN 108222390 B CN108222390 B CN 108222390B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 251
- 239000010959 steel Substances 0.000 title claims abstract description 251
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 149
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 148
- 241001330002 Bambuseae Species 0.000 title claims abstract description 148
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 148
- 239000011425 bamboo Substances 0.000 title claims abstract description 148
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 35
- 238000005034 decoration Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 238000013461 design Methods 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 26
- 238000010079 rubber tapping Methods 0.000 claims description 19
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- 235000007164 Oryza sativa Nutrition 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 13
- 235000009566 rice Nutrition 0.000 claims description 13
- 238000010586 diagram Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
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- 238000003466 welding Methods 0.000 claims description 4
- 238000011960 computer-aided design Methods 0.000 claims description 3
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- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 244000271437 Bambusa arundinacea Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 240000001857 Phyllostachys elegans Species 0.000 description 1
- 235000015299 Phyllostachys elegans Nutrition 0.000 description 1
- 235000017200 Phyllostachys vivax Nutrition 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
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Abstract
The invention relates to a rice-shaped bamboo decorative steel frame and a construction method, wherein one ends of a plurality of main steel members are fixedly connected together at any space angle to form a steel frame node in a shape of a Chinese character 'mi', and the steel frame node forms a three-dimensional steel frame containing the node in the shape of the Chinese character 'mi' through the main steel member and the secondary steel member of the steel frame; a triangle with any shape is formed by the secondary steel components in any plane formed between the primary steel components, a small triangle bamboo ornament is formed by pasting bamboo chips on the triangle, and U-shaped bamboo ornament frames are wrapped outside all the primary and secondary steel components of the three-dimensional steel frame. The invention can manufacture various outer elevation decorations according to different building functions and shapes, and can solve the technical problems of very complex shapes, up to 8 rods at the joints, steel frame joints intersecting different angles and space planes and great processing, manufacturing and mounting difficulties of bamboo decorative frame joints.
Description
Technical Field
The invention relates to a bamboo decorative steel frame, in particular to a rice-shaped bamboo decorative steel frame and a construction method.
Background
Along with the improvement of the living standard of people, the aesthetic feeling pursuit of the beautiful environment and the external decoration of the building is higher and higher, and building designers design diversified external elevation decoration according to different building functions and shapes. Bamboo has high wind and light reputation, green and elegant bamboo decoration, cheap and fine bamboo, rich raw materials and good durability, is popular among people, and is one of important choices of a plurality of architects and owners.
Because the connection technology of bamboo and reinforced concrete structure is not mature enough, bamboo decoration is connected with the main body structure by means of rigid materials, and then the decoration is carried out in a mode of wrapping rigid materials. The common bamboo veneer is simple and elegant, and the construction process is simple. The invention relates to a bamboo decorative steel framework, which has very complex modeling, up to 8 steel square pipes at joints and very large installation volume. Meanwhile, the steel frameworks are all perpendicular to the outer wall surface, all planes of the bamboo decorations are intersected at different angles, and the processing and manufacturing difficulties and the installation difficulties are very high.
Disclosure of Invention
The invention aims to provide a rice-shaped bamboo decorative steel frame and a construction method thereof, which are used for construction of the rice-shaped bamboo decorative steel frame with complex bamboo decorative surface modeling, up to 8 steel square tubes at joints and large installation body, wherein the steel frame is vertical to the outer wall surface, and the planes of the bamboo decorative steel frame are intersected at different angles.
The technical scheme of the invention is as follows: one end of each of the plurality of main steel members is fixedly connected together at any space angle to form a steel frame node in a shape like a Chinese character 'mi', and the steel frame node forms a three-dimensional steel frame containing the node in the shape like the Chinese character 'mi' through the main steel members of the steel frame; a triangle with any shape is formed by the secondary steel components in any plane formed between the primary steel components, a small triangle bamboo ornament is formed by pasting bamboo chips on the triangle, and U-shaped bamboo ornament frames are wrapped outside all the primary and secondary steel components of the three-dimensional steel frame.
The U-shaped bamboo decorative frame is fixed on the main steel member and the secondary steel member of the steel framework through self-tapping screws, the distance between the self-tapping screws is 500mm, and outdoor structural adhesive is coated on the screws.
And special glue, bamboo powder and putty are mixed and filled in the gaps between the U-shaped bamboo decorative frames.
The construction method for fixing the rice-shaped bamboo decorative steel frame by using structural adhesive and self-tapping screws on two ends of the bamboo chips of the small triangle bamboo decorative steel comprises the following steps:
1) And (3) designing a three-dimensional steel framework: designing a three-dimensional steel framework according to a design effect diagram, wherein the three-dimensional steel framework comprises connecting nodes of the three-dimensional steel framework and a main body structure, and connecting nodes of main and secondary steel members of the three-dimensional steel framework, in particular to 'rice' -shaped nodes;
2) When the main body structure is constructed, the design, the processing and the pre-embedding construction of the three-dimensional steel framework and the main body connecting piece are carried out according to the three-dimensional steel framework diagram;
3) Processing, manufacturing and installing construction of primary and secondary steel components
(1) And according to the design drawing of the three-dimensional steel framework, carrying out three-dimensional modeling on the three-dimensional steel framework by utilizing the BIM technology, and carrying out processing, manufacturing and pre-assembling simulation.
(2) Computer aided machining design: according to the processing design diagram, a three-dimensional coordinate point method is adopted in a computer to complete all the processing diagrams of the main and secondary steel components;
(3) Performing pre-assembly simulation construction on each node structure of the three-dimensional steel framework by using BIM three-dimensional modeling and a computer-aided machining design drawing;
(4) Selecting a three-dimensional steel framework, processing, manufacturing and installing a 1:1 solid template, and guiding large-area processing, manufacturing, installing and constructing through the solid template construction;
(5) According to design and three-dimensional modeling of the main and secondary steel members and the geometric size requirement of the nodes, on the basis of the calculation book laying aided design, a five-dimensional automatic cutting machine is adopted to cut and process the ports of the steel members into shapes with variable cutting openings meeting the requirements of the nodes of the steel members, the shapes of the space curves of the members are met, and the cutting process ensures that the two ends of each steel member meet the connection requirement of the ports of the nodes with other steel members, wherein the port requirements comprise connection plane angles and space angles;
(6) The main steel member connected with the main structure is required to meet the requirements of horizontal grid, vertical grid and space angle of the main steel member on the outer vertical surface of the building, and the welding seam connection requirement of the port of the steel member and the embedded part is required to be ensured;
(7) The general installation principle of the three-dimensional steel framework of the building outer vertical surface is that the steel framework is firstly up and then down, and firstly inside and then outside; the installation sequence is as follows: the triangular steel framework perpendicular to the wall surface is installed and fixed, the main steel member connected with the main body structure is installed and fixed, and the secondary steel member connected with the main steel member is connected and fixed;
4) After the three-dimensional steel frame is installed, bamboo decoration construction and installation are carried out
After the three-dimensional steel framework is installed, triangular bamboo chips are stuck and fixed, then steel member U-shaped bamboo frames are installed, the U-shaped bamboo frames are wrapped on the main steel member and the secondary steel member, the steel structure is required to be fully and completely wrapped in the visual range of eyes, and the construction steps are as follows:
(1) Checking the installed three-dimensional steel frame, and carrying out actual measurement on the sizes of the main steel member and the secondary steel member, particularly the three-dimensional size of a port at a connecting node of each member;
(2) According to the actual measured sizes of the main steel member and the secondary steel member, blanking the U-shaped bamboo frame, and blanking the U-shaped bamboo frame according to the size and angle of the ports of the U-shaped bamboo frame and the three-dimensional size of the ports of each main steel member and the secondary steel member, and considering the different lengths and port sizes of the U-shaped bamboo frames on the two sides of the same steel member;
(3) According to the small triangle shape and the side length of the three-dimensional steel frame, bamboo chips are processed and manufactured, and special attention is paid to the lengths of the bamboo chips at different positions and the port angles at two ends, and the small triangle bamboo chips are stuck and fixed;
(4) U-shaped bamboo frames of all the main and secondary steel members are installed;
(5) And (3) accurately repairing, cleaning and coating outdoor protective oil on the node parts of all the main and secondary steel members, and checking and accepting.
The bamboo chips and the U-shaped bamboo frames are installed:
(1) The design of the steel frame of the bamboo decorations containing the rice-shaped is contrasted, and the processing of the bamboo chips and the U-shaped bamboo frames required by the small triangle bamboo decorations is completed according to the design drawing and the on-site measurement size;
(2) The bamboo chips are stuck and fixed on the corresponding main and secondary steel components, and the two ends of the bamboo chips are secondarily fixed with the main and secondary steel components by adopting outdoor structural adhesive and self-tapping screws;
(3) The U-shaped bamboo frame is arranged on a three-dimensional steel framework with'm' -shaped nodes: the method comprises the steps of firstly coating outdoor special adhesive in an inner groove of a processed U-shaped bamboo frame, then pre-fixing the U-shaped bamboo frame on a main steel member and a secondary steel member, fixing the U-shaped bamboo frame by adopting self-tapping screws, coating outdoor structural adhesive on the self-tapping screws at a spacing of 500mm, reinforcing connection of the U-shaped bamboo frame and the main steel member and the secondary steel member, carrying out secondary treatment on gaps existing between the U-shaped bamboo frame, mixing the outdoor special adhesive with bamboo powder and putty, and filling the gaps.
The beneficial effects of the invention are as follows: the invention can manufacture various outer elevation decorations according to different building functions and shapes. And can solve bamboo decorations installation node, the molding is very complicated, node department is up to 8 member, the great technical problem of processing preparation and installation difficulty.
The bamboo facing has complex modeling, up to 8 steel square pipes at the joints, large installation volume, and simultaneously, the steel framework is all perpendicular to the outer wall surface, and different planes with different angles of each component are intersected at the joints. The invention solves the technical problem in construction of the light steel frame with the bamboo ornament in the shape of the Chinese character 'mi'. The construction method can be used for manufacturing and installing the m-shaped bamboo decorative steel frame, can solve the construction and installation of the same-plane multi-rod piece common node, and can also solve the construction and installation construction of different-plane multi-angle multi-rod piece common node. The invention can solve the installation and construction of various forms of steel frameworks and bamboo decorative frames on the outer facade of the building, and realize the pursuit of architects on the diversity and the variability of the outer facing of the building. Adding color for beautifying building and city.
Drawings
FIG. 1 is a schematic view of a three-dimensional steel frame structure;
FIG. 2 is a schematic view of a three-dimensional steel frame with small triangular bamboo chips mounted thereon;
FIG. 3 is a schematic view of a three-dimensional steel frame with small triangular bamboo chips and a bamboo decorative frame mounted thereon;
FIG. 4 is a schematic elevational view of a main body structure and a three-dimensional steel frame;
fig. 5 is a side elevation cross-sectional view of a main body structure and a solid steel frame.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1 to 3, one end of a plurality of main steel members 11 are fixedly connected together at any spatial angle to form a steel frame node 10 in a shape of a Chinese character 'mi', and the steel frame node 10 forms a three-dimensional steel frame containing the node in a shape of a Chinese character 'mi' through the main steel members 11 of the steel frame; a triangle with any shape is formed by the secondary steel members 12 in any plane formed between the main steel members 11, a small triangle bamboo ornament is formed by pasting bamboo chips 13 on the triangle, and U-shaped bamboo ornament frames 14 are wrapped outside all the main steel members 11 and the secondary steel members 12 of the three-dimensional steel frame.
The U-shaped bamboo decorative frame 14 is fixed on the main and secondary steel members 11, 12 of the steel framework through self-tapping screws, the distance between the self-tapping screws is 500mm, and outdoor structural adhesive is coated on the screws. The special glue for the outside of the user in the gap between the U-shaped bamboo decorative frames 14 is mixed with bamboo powder and putty for filling.
The two ends of the bamboo sheet 13 of the small triangle bamboo ornament are fixed with the main and secondary steel members 11, 12 by structural adhesive and self-tapping screws.
As shown in fig. 4 and 5, a three-dimensional steel frame of a'm' -shaped node is arranged on a main body structure 1, the joint of the three-dimensional steel frame 3 and the main body structure 1 is a main body joint 4, and a main body outer enclosure 2 is arranged between the main body structures 1.
Main steel member main material: 60X 4 galvanized steel square pipe, U-shaped frame bamboo decorative material: 1860×90×40mm, stainless steel self-tapping screw, bamboo decorative hole-supplementing sheet, inlet structural adhesive, etc. It is required that the main steel members are not uniformly spliced with short materials. Before the steel section is coated, the steel section should be thoroughly derusted by adopting methods such as sand blasting, shot blasting and the like. After rust removal, epoxy rich primer two degrees, cloud iron intermediate coat two degrees and fluorocarbon finish paint two degrees should be sprayed. All the steel components should be continuously welded along the periphery and polished and smoothly transited. The bamboo ornament material is made of natural, environment-friendly and wear-resistant bamboo materials with the growth period of 4-7 years, and the bamboo materials meet the technical requirements of outdoor corrosion resistance, mildew resistance, B1-level fire resistance and the like.
The invention relates to a construction method of a rice-shaped bamboo decorative steel framework, which comprises the following steps:
1) And (3) deep design of a steel framework: before the primary and secondary steel components are processed, deep design is carried out, and a complete processing design diagram which meets the processing and manufacturing precision requirements is formed. According to the design effect diagram, the three-dimensional steel framework is deeply designed, and comprises connecting nodes of the three-dimensional steel framework and a main body structure, connecting nodes of main and secondary steel members of the three-dimensional steel framework, in particular to 'rice' -shaped nodes and the like.
2) When the main body structure is constructed, the design, the processing and the pre-embedding construction of the three-dimensional steel framework and the main body connecting piece are carried out according to the deepened design drawing.
3) Processing, manufacturing and installing construction of primary and secondary steel components
(1) And according to the deepened design drawing, performing three-dimensional modeling on the three-dimensional steel framework by using a BIM technology, and performing processing, manufacturing and pre-assembling simulation.
(2) Computer aided machining design: and according to the processing design diagram, a three-dimensional coordinate point method is adopted in a computer to complete all the processing diagrams of the main and secondary steel components.
(3) And performing pre-assembly simulation construction on each node structure of the three-dimensional steel framework by using BIM three-dimensional modeling and a computer-aided machining design drawing.
(4) And selecting a three-dimensional steel framework form of complex nodes and typical nodes on site, processing, manufacturing and installing a 1:1 entity template, and perfecting each fine link of the installation process through the entity template manufacturing and construction. Guiding large-area processing, manufacturing, installation and construction. And carrying out processing, manufacturing, installation and construction on the components comprehensively according to the requirements of the entity templates.
(5) And cutting and processing the ports of the main and secondary steel members into shapes with variable cutting openings meeting the requirements of the member nodes by adopting a five-dimensional automatic cutting machine on the basis of the computer aided design according to the deepened design and the three-dimensional modeling and the geometric size requirements of the nodes, thereby meeting the shape of the member space curve. The cutting process should ensure that both ends of each component meet the node port connection requirements of the other components. The port requirements include connection plane angle, space angle.
Because each steel component of "meter" font is located the different horizontal elevation and the vertical elevation of building facade respectively, its angle of connection and port shape at node department also are different. The computer-aided design and the five-dimensional automatic cutting machine are used for cutting and processing the steel square pipe ends of the steel members meeting the 'rice' -shaped design of the bamboo decorative light steel framework, so that the three-dimensional angle of the end of each steel member at the 'rice' -shaped byte point meets the installation requirement, and meanwhile, the horizontal grid and the vertical grid of the steel member on the outer facade of the building can be met, and the connection of the steel member with the embedded part of the outer facade of the building is met.
In order to ensure the decoration effect, each processing component can be correctly installed, and the requirements on the on-site measurement positioning accuracy are very high. The measurement positioning is in principle carried out from the middle to the two sides. According to different division sizes of the vertical steel members, each vertical line is popped up on the wall, and the horizontal elevation control lines are marked. Through high-precision measurement unwrapping wire, inspection structure's elevation and embedded part business turn over elevation size, accurate unwrapping wire data provides reliable assurance for on-the-spot installation.
And checking the deviation of the embedded part through the lofting elastic line, and correcting in time. After the embedded part is rechecked without errors, the garbage on the embedded part should be carefully cleaned, and rust removal treatment is carried out.
Two ends of each outer wall are provided with 2 vertical steel wires and 8 horizontal steel wires.
And cutting and installing the steel frameworks one by one on site according to the deviation sizes of the embedded parts. The steel member connected with the main structure meets the requirements of horizontal division, vertical division and space angle of the steel member on the outer vertical surface of the building, and ensures the requirement of weld joint connection of the port of the steel member and the embedded part.
The main steel member and the secondary steel member are directly welded, and the welding seam is continuously welded along the whole circumference and polished and smoothly transited. All welds must be polished smooth.
Mounting process and sequence:
the general installation principle of the steel frame of the building outer vertical surface is that the steel frame is firstly up and then down, and firstly inside and then outside; the installation sequence is as follows: the triangular steel framework perpendicular to the wall surface is installed and fixed, the main component connected with the main structure is installed and fixed, and the secondary component connected with the main component is connected and fixed. And installing on the outer wall scaffold. And (5) factory numbering, and assembling and welding on floors. Every connecting steel square pipe must have 3 point connection with the vertical component, and the straightness cell size should satisfy the designing requirement, and the installation of inclined plane component is carried out every frame after the vertical component is accomplished.
4) After the three-dimensional steel framework is installed, construction and installation of small triangular bamboo chips and U-shaped bamboo frame bamboo decorations are carried out
And (3) performing fluorocarbon spraying (second degree) after performing batch embedding and polishing on all the steel members again, and mounting the bamboo chips after the fluorocarbon spraying is finished. The U-shaped bamboo frame is wrapped on the steel member, and the steel structure is required to be fully and completely wrapped in the visual range of human eyes. The construction sequence is from top to bottom, and the construction process flow is as follows:
checking the installed steel frame 10 (figure 3), measuring and paying off, installing the small triangle bamboo decorations 11 (figure 4), installing the U-shaped bamboo frames 12 (figure 5), accurately repairing the detailed node parts, cleaning, applying outdoor protective oil and checking and accepting.
Before the bamboo decorative plate is installed, the construction quality of the steel framework is checked again, and the quality is high and the arrangement position of the framework is greatly influenced. Particularly, the deviation of the perpendicularity and the flatness of the wall surface can influence the whole horizontal position. Actual measurement of the dimensions of the steel components, particularly the three-dimensional dimensions of the ports at the connection nodes of the components, is performed.
And (5) carrying out blanking processing on the U-shaped bamboo frame according to the actual measurement size of the steel member. The size and angle of the U-shaped bamboo frame port must be strictly processed according to the three-dimensional size of each component port, and the different lengths and port sizes of the U-shaped bamboo frames on the two sides of the same steel component should be considered.
(1) Comparing the design of the steel frame of the bamboo decorations containing the rice shape, and processing the bamboo chips and the U-shaped bamboo frames required by the small triangle bamboo decorations according to the design drawing and the on-site measurement size in a factory; and the small triangular inner bamboo board and the U-shaped bamboo frame are manufactured for finished product protection.
(2) And pasting and fixing the small triangular bamboo chips in the steel frame. And (3) pasting and fixing the bamboo chips on the corresponding main and secondary steel members. And two ends of the bamboo chip are secondarily fixed with the steel member by adopting outdoor structural adhesive and self-tapping screws.
(3) All primary and secondary steel member bamboo decorations are installed: the U-shaped bamboo frame is arranged on a three-dimensional steel framework with'm' -shaped nodes: the outdoor special adhesive is coated in the inner groove of the processed U-shaped bamboo frame, then the U-shaped bamboo frame is pre-fixed on the main steel member and the secondary steel member, the U-shaped bamboo frame is fixed by adopting tapping screws, the interval is 500mm, and the tapping screws are coated with outdoor structural adhesive to strengthen the connection between the U-shaped bamboo frame and the main steel member and the secondary steel member. And (3) carrying out secondary treatment on gaps existing between the U-shaped bamboo frames, mixing outdoor special glue with bamboo powder and putty, and filling the gaps.
In the construction process, the self-made pistol drill supporting framework is combined for auxiliary installation, so that the installation quality is ensured, and the installation efficiency is improved. And the power of the pistol drill is adjusted to ensure that the screw is not damaged or broken and is smoothly installed.
And (3) carrying out secondary treatment on gaps existing between the U-shaped bamboo frames, mixing outdoor special glue with bamboo powder and putty, and filling the gaps.
Filling the screw holes, polishing the filling parts, and brushing special outdoor oil according to the process requirements to ensure that the whole effect is consistent.
And (3) accurately repairing, cleaning, coating outdoor protective oil and checking and accepting the detailed node parts.
Claims (5)
1. One end of a plurality of main steel members in the 'rice' -shaped bamboo decorative steel frame are fixedly connected together at any space angle to form a 'rice' -shaped steel frame node, and the steel frame node forms a three-dimensional steel frame containing the 'rice' -shaped node through the main steel members of the steel frame; triangle with arbitrary shape is formed by secondary steel components in any plane formed between the main steel components, small triangle bamboo decorations are formed by pasting bamboo chips on the triangle, U-shaped bamboo decorations frames are wrapped outside all the main and secondary steel components of the three-dimensional steel frame, and the method is characterized by comprising the following steps:
1) And (3) designing a three-dimensional steel framework: designing a three-dimensional steel framework according to a design effect diagram, wherein the three-dimensional steel framework comprises connecting nodes of the three-dimensional steel framework and a main body structure, and connecting nodes of main and secondary steel members of the three-dimensional steel framework, and the connecting nodes are shaped like Chinese character 'mi';
2) When the main body structure is constructed, the design, the processing and the pre-embedding construction of the three-dimensional steel framework and the main body connecting piece are carried out according to the three-dimensional steel framework diagram;
3) Processing, manufacturing and installing construction of primary and secondary steel components
(1) According to the design drawing of the three-dimensional steel framework, three-dimensional modeling is carried out on the three-dimensional steel framework by utilizing the BIM technology, and processing, manufacturing and pre-assembling simulation are carried out;
(2) Computer aided machining design: according to the processing design diagram, a three-dimensional coordinate point method is adopted in a computer to complete all the processing diagrams of the main and secondary steel components;
(3) Performing pre-assembly simulation construction on each node structure of the three-dimensional steel framework by using BIM three-dimensional modeling and a computer-aided machining design drawing;
(4) Selecting a three-dimensional steel framework, processing, manufacturing and installing a 1:1 solid template, and guiding large-area processing, manufacturing, installing and constructing through the solid template construction;
(5) The main steel member and the secondary steel member are modeled in a three-dimensional mode according to the design and the geometric size requirement of the nodes, on the basis of the computer aided design, a five-dimensional automatic cutting machine is adopted to cut and process the ports of the steel members into shapes with variable cutting openings meeting the requirements of the nodes of the steel members, the shapes of the space curves of the members are met, and the cutting process ensures that the two ends of each steel member meet the connection requirement of the ports of the steel members and the nodes of other steel members, wherein the port requirements comprise connection plane angles and space angles;
(6) The main steel member connected with the main structure is required to meet the requirements of horizontal grid, vertical grid and space angle of the main steel member on the outer vertical surface of the building, and the welding seam connection requirement of the port of the steel member and the embedded part is required to be ensured;
(7) The general installation principle of the three-dimensional steel framework of the building outer vertical surface is that the steel framework is firstly up and then down, and firstly inside and then outside; the installation sequence is as follows: the triangular steel framework perpendicular to the wall surface is installed and fixed, the main steel member connected with the main body structure is installed and fixed, and the secondary steel member connected with the main steel member is connected and fixed;
4) After the three-dimensional steel frame is installed, bamboo decoration construction and installation are carried out
After the three-dimensional steel framework is installed, triangular bamboo chips are stuck and fixed, then steel member U-shaped bamboo frames are installed, the U-shaped bamboo frames are wrapped on the main steel member and the secondary steel member, the steel structure is required to be fully and completely wrapped in the visual range of eyes, and the construction steps are as follows:
(1) Checking the installed three-dimensional steel frame, and carrying out actual measurement on the sizes of the main steel member and the secondary steel member, wherein the three-dimensional sizes of ports at the connecting nodes of the members are measured;
(2) According to the actual measured sizes of the main steel member and the secondary steel member, blanking the U-shaped bamboo frame, and blanking the U-shaped bamboo frame according to the size and angle of the ports of the U-shaped bamboo frame and the three-dimensional size of the ports of each main steel member and the secondary steel member, and considering the different lengths and port sizes of the U-shaped bamboo frames on the two sides of the same steel member;
(3) According to the shape and side length of the small triangle in the three-dimensional steel frame, processing and manufacturing the bamboo chips, paying attention to the lengths of the bamboo chips at different positions and the angles of the ports at the two ends, and pasting and fixing the small triangle bamboo chips;
(4) U-shaped bamboo frames of all the main and secondary steel members are installed;
(5) And (3) accurately repairing, cleaning and coating outdoor protective oil on the node parts of all the main and secondary steel members, and checking and accepting.
2. The construction method of the 'rice' -shaped bamboo decorative steel frame according to claim 1, which is characterized in that: the bamboo chips and the U-shaped bamboo frames are installed:
(1) The design of the steel frame of the bamboo decorations containing the 'rice' -shape is contrasted, and the processing of the bamboo chips and the U-shaped bamboo frames required by the small triangle bamboo decorations is completed according to the design drawing and the on-site measurement size;
(2) The bamboo chips are stuck and fixed on the corresponding main and secondary steel components, and the two ends of the bamboo chips are secondarily fixed with the main and secondary steel components by adopting outdoor structural adhesive and self-tapping screws;
(3) The U-shaped bamboo frame is arranged on a three-dimensional steel framework with'm' -shaped nodes: the method comprises the steps of firstly coating outdoor special adhesive in an inner groove of a processed U-shaped bamboo frame, then pre-fixing the U-shaped bamboo frame on a main steel member and a secondary steel member, fixing the U-shaped bamboo frame by adopting self-tapping screws, coating outdoor structural adhesive on the self-tapping screws at a spacing of 500mm, reinforcing connection of the U-shaped bamboo frame and the main steel member and the secondary steel member, carrying out secondary treatment on gaps existing between the U-shaped bamboo frame, mixing the outdoor special adhesive with bamboo powder and putty, and filling the gaps.
3. The construction method of the 'rice' -shaped bamboo decorative steel frame according to claim 1, which is characterized in that: the U-shaped bamboo decorative frame is fixed on the main steel member and the secondary steel member of the steel framework through self-tapping screws, the distance between the self-tapping screws is 500mm, and outdoor structural adhesive is coated on the screws.
4. The construction method of the 'rice' -shaped bamboo decorative steel frame according to claim 3, which is characterized in that: and special glue, bamboo powder and putty are mixed and filled in the gaps between the U-shaped bamboo decorative frames.
5. The construction method of the 'rice' -shaped bamboo decorative steel frame according to claim 1, which is characterized in that: and the two ends of the bamboo chip of the small triangle bamboo ornament are fixed with the main and secondary steel components by using structural adhesive and self-tapping screws.
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