CN113565221A - CAM system simple structure for construction of building refuge layer - Google Patents
CAM system simple structure for construction of building refuge layer Download PDFInfo
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- CN113565221A CN113565221A CN202110831456.2A CN202110831456A CN113565221A CN 113565221 A CN113565221 A CN 113565221A CN 202110831456 A CN202110831456 A CN 202110831456A CN 113565221 A CN113565221 A CN 113565221A
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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
- E04B1/38—Connections for building structures in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/642—Protecting metallic construction elements against corrosion
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
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Abstract
The invention provides a simplified and easy structure of a CAM system for construction of a building refuge layer, which relates to the technical field of building construction and comprises a bearing concrete wall, a structural beam concrete wall and bearing steel bars, wherein a GL1 steel beam and the bearing concrete wall are respectively connected in two connection modes with the bearing steel bars, 20 HRB400 bearing steel bars with the diameter of 20 are connected with a perforated welding plug at the back of a steel plate and are combined with a bracket steel beam to connect the bearing concrete wall with smaller thickness with GL1, meanwhile, the middle of the connecting steel plate is connected with a GL1 bearing concrete wall and a thicker bearing concrete wall by adopting the HRB400 bearing steel bars with the diameter of 20 and the perforated welding plug, the GL1 with the bearing force of different thicknesses of the bearing concrete wall is connected, the stability and the bearing force of the building concrete wall are increased, the adaptability is increased, the steel surface is derusted to carry out surface treatment, the steel surface is coated by using priming paint, finishing paint, fire-resistant paint and fireproof paint, the firmness of the welded steel surface and welding seams are effectively guaranteed, the service life of the steel during assembly and use is prolonged, and the steel is convenient for building construction and use.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a simple structure of a CAM (computer-aided manufacturing) system for building refuge layer construction.
Background
Urban super high-rise buildings are more and more, and refuge floors are required to be arranged in high-rise buildings with the height of more than 100 meters in consideration of fire safety. The refuge layer has different building functions from the standard layer, so the structure is different, and the refuge layer different from the standard layer needs to locally cantilever the structural beam plate.
According to chinese patent No. CN208533997U, a climbing frame refuge layer structure comprises: the structural slab, fix constructional column on the structural slab, the oblique pull rod of at least one between structural slab and constructional column is connected in the slope, and structural slab and constructional column all install on climbing the frame through the guide bracket. The refuge layer of the utility model has simple structure, can bear larger pressure, and can be quickly and conveniently connected with the climbing frame through the guide seat, thereby playing the role of safety protection and reducing the construction cost;
according to the construction method of the high-position connected structure suspended type formwork support disclosed by the Chinese patent No. CN 101886468B. The invention adopts the procedures of installing the box-type steel hanging column, installing the steel beam, the profiled steel sheet, welding the shear-resistant stud, binding the reinforcing mesh and pouring the floor bearing plate concrete to complete the high-position connected structure suspension type template. The invention solves the defects of large supporting material consumption, long construction period, high reinforcement cost, high construction cost, large dead weight, large construction difficulty and the like of the traditional bearing full-hall supporting frame and the traditional high-altitude heavy operation platform. The invention makes full use of the self bearing capacity of the steel main beam of the conversion layer, so that the combined floor slab is used as an operation platform to set up a template support frame in the construction stage and used as a permanent refuge layer of the super high-rise building in the use stage, thereby ensuring the safety of high-altitude operation, saving construction cost and increasing the use area.
Above-mentioned first patent document adopts the unsettled opening and closing of taking refuge layer of carrying out of external layer of taking refuge, and it is poor carrying out unsettled bearing capacity, and stability is not high, and the second patent document adopts the steel principal amount to pour the construction, to the structure of the concrete wall of different floors, can't carry out the adaptation, and pour and bear used steel surface and unprocessed, the hardness and the practical life of concrete are influenced when carrying out concrete placement to impurity such as surface oil reservoir, dust, are unfavorable for actual building construction and use.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a simple and easy CAM system structure for construction of a building refuge layer, and solves the problems of poor bearing force and short steel service life of the existing building refuge layer construction.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the CAM system simple structure for construction of the building refuge layer comprises a bearing concrete wall, a structural beam concrete wall and a bearing steel bar, the outer edge of the bearing concrete wall is fixedly provided with a bearing frame, two sides of the top surface of the bearing concrete wall are fixedly provided with connecting steel plates, the edge of the connecting steel plate is fixed with the side surface of the bearing frame, the back surface of the connecting steel plate is welded with bearing steel bars, and 20 bearing steel bars are arranged on the back of the connecting steel plate in a 5 multiplied by 4 distribution manner, a bracket steel beam is arranged between the bearing concrete wall and the adjacent connecting steel plate, the bracket steel beam comprises a warp-wise bearing beam and a weft-wise connecting beam, the warp-wise bearing beams are uniformly arrayed between the adjacent connecting steel plates in a horizontal straight line manner, the weft-wise connecting beams are uniformly arrayed in a vertical direction, the edges of the warp bearing beams are welded with the inner walls of the weft connecting beams, and GL1 steel beams are fixedly arranged on one side, close to the bracket steel beams, of the bearing concrete wall;
the two sides of the top surface of the bearing concrete wall are fixedly provided with connecting steel plates, the connecting steel plates and the outer part of the bearing concrete wall are respectively provided with a bearing frame, bearing steel bars are welded between the adjacent connecting steel plates, the number of the bearing steel bars is 20, the bearing steel bars are distributed and arranged between the connecting steel plates by 5 multiplied by 4, the surface of one side of the bearing concrete wall is fixedly provided with a GL1 steel beam, and the bottom surface of the GL1 steel beam penetrates through the connecting steel plates at the two sides through the bearing steel bars;
structure roof beam concrete wall top surface one side is equipped with two GL1 girder steels, and adjacent GL1 girder steel runs through perpendicularly mutually, one side that GL1 girder steel was kept away from to structure roof beam concrete wall bottom surface is equipped with a pair of steel connecting plate, and steel connecting plate is perpendicular with structure roof beam concrete wall bottom surface, structure roof beam concrete wall is equipped with the bearing frame with the equal welding in steel connecting plate outside surface edge, and adjacent steel connecting plate top surface and the equal symmetry in bottom surface are equipped with the bearing crab-bolt, and the bearing crab-bolt is equipped with 10 altogether, bearing crab-bolt outer wall surface welding is equipped with the bearing reinforcing bar, and bearing reinforcing bar cross-section quadrangle, and bearing reinforcing bar outer wall surface and the welding of steel connecting plate inner wall, and the bearing reinforcing bar is along the even array distribution of bearing crab-bolt length direction.
The CAM system simplified structure steel structure processing technology for building refuge layer construction comprises the following steps:
sp 1: pretreating (A), namely polishing and cleaning the surface of the GL1 steel beam, the connecting steel plate, the bearing steel bar, the bearing anchor bolt, the bearing frame and the bracket steel beam before blanking, and then performing surface shot blasting and sand blasting, wherein the rust removal grade is Sa2.5 grade, and the surface roughness is Rz40-75 mu m;
sp 2: pretreating (B), wherein the GL1 steel beam, the connecting steel plate, the bearing steel bar, the bearing anchor bolt, the bearing frame and the bracket steel beam are subjected to surface dust removal, paint spraying and drying after shot blasting and rust removal, and the paint spraying thickness is 20 mu m;
sp 3: coating a primer, namely cleaning the surface of the pretreated steel, and spraying an inorganic zinc-rich primer on the surface of the cleaned steel, wherein the thickness of the primer is 80 mu m;
sp 4: coating finish paint, namely conveying the steel coated with the primer to an assembly site for welding, and coating a layer of polyurethane finish paint on the surface, wherein the thickness of the finish paint is 80 mu m;
sp 5: repairing and coating, namely hoisting and welding the steel coated with the finish paint in sections, and coating and repairing paint on the damaged part of the steel surface, wherein the repaired paint is inorganic zinc-rich primer and epoxy sealing paint, and the thickness of the repaired paint is 40 mu m;
sp 6: and (4) protective coating, namely uniformly spraying fireproof coating on the surface of the steel.
Preferably, oil stain, salt and impurities on the surface of the steel part are cleaned during the surface pretreatment, 70% of steel shots and 30% of water chestnut sand are adopted for integral sand washing during shot blasting and rust removal, and the sand washing pressure is 5-7kg/cm2The dry and clean compressed air drives the abrasive to spray the metal surface.
Preferably, when the pretreatment is performed with shot blasting and rust removal, the relative humidity of air is controlled to be 85% by measuring with a dry-wet thermometer and then converting with a table look-up table, the surface temperature of the steel plate is kept to be 3 +/-0.5 ℃ by measuring with a steel plate temperature meter, and environmental parameter control of sand blasting operation is achieved by adopting a dehumidifier, a heating dryer and the like.
Preferably, the inner surface and the outer surface of the steel are subjected to sand blasting treatment simultaneously during the pretreatment and sand blasting, sand blasting environment detection is performed every 24 hours, the spraying distance during the sand blasting is 120-200mm, and the spraying angle is 60-70 degrees.
Preferably, the surface coating is carried out 4 hours after the pretreatment sand blasting treatment is qualified, and the pre-coating treatment is carried out on the parts which are difficult to spray, such as the welding seams, the angular positions and the like of the steel part before the coating.
Preferably, when painting and spraying paint, a thermometer is adopted to measure and control the ambient temperature to be 5-38 ℃, a relative humidity meter and a dry humidity rocking meter are adopted to control the air relative humidity to be 85%, and explosion prevention and the like are adopted to perform painting illumination.
Preferably, the size of the connecting steel plate on the top surface of the load-bearing concrete wall is 700mm multiplied by 600mm, the load-bearing steel bar on the top surface of the load-bearing concrete wall is HRB400 type with the diameter of 20mm, the length of the load-bearing steel bar is 305mm, and the length of the load-bearing anchor bolt is 100 mm.
Advantageous effects
The invention provides a simple structure of a CAM system for construction of a building refuge layer. The method has the following beneficial effects:
1. the GL1 steel beam and the bearing concrete wall are respectively connected by two connection modes of the GL1 steel beam and the bearing steel bar, 20 HRB400 bearing steel bars with the diameter of 20 are adopted at the back of the connecting steel plate to be combined with a bracket steel beam to connect the bearing concrete wall with smaller thickness with GL1, and 20 HRB400 bearing steel bars with the diameter of 20 are adopted in the middle of the connecting steel plate to be connected with GL1 and a thicker bearing concrete wall to connect the GL1 with the bearing force of different thicknesses of the bearing concrete wall, so that the stability and the bearing force of the building concrete wall are increased.
2. The invention adopts different connection modes of the same parts between the GL1 steel beam and the bearing concrete wall and the structural beam concrete wall to increase the diversity and the adaptability of the connection of the GL1 steel beam, so that the GL1 steel beam is used when being connected, the GL1 steel beam is prevented from colliding with the bearing steel bar in the structural beam concrete wall, the GL1 steel beam is convenient to be used for connection construction, and the adaptability is increased.
3. The steel surface is subjected to shot blasting and rust removal for surface treatment, and the surface of the steel is coated by the primer, the finish, the refinishing paint and the fireproof paint, so that the surface weather resistance of the welded steel and the firmness of a welding seam are effectively guaranteed, the service life of the steel during assembly and use is prolonged, and the steel is convenient for building construction and use.
Drawings
FIG. 1 is a connection structure diagram of a load-bearing concrete wall before hoisting according to the present invention;
FIG. 2 is a structural view of a load-bearing concrete wall before being hoisted in the invention;
FIG. 3 is a structural diagram of the structural beam concrete wall connection before the hoisting of the present invention;
FIG. 4 is a structural diagram of a corbel steel beam before hoisting according to the invention;
FIG. 5 is a process flow diagram of the present invention;
FIG. 6 is a flow chart of the pretreatment of the present invention;
FIG. 7 is a main simulation diagram of the present invention;
FIG. 8 is a partial simulation of the present invention;
FIG. 9 is a sub-simulation of the present invention.
Wherein: 1. a load-bearing concrete wall; 2. GL1 steel beams; 3. connecting steel plates; 4. a load-bearing reinforcing bar; 5. structural beam concrete walls; 6. a load-bearing anchor bolt; 7. a load-bearing frame; 8. a bracket steel beam; 801. a warp spandrel girder; 802. and the latitudinal direction is connected with the beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-4, comprises a bearing concrete wall 1, a structural beam concrete wall 5 and a bearing steel bar 4, wherein a bearing frame 7 is fixedly arranged at the outer edge of the bearing concrete wall 1, connecting steel plates 3 are fixedly arranged at two sides of the top surface of the bearing concrete wall 1, the edge of the connecting steel plate 3 is fixed with the side surface of the bearing frame 7, the back surface of the connecting steel plate 3 is welded with a bearing steel bar 4, and 20 bearing steel bars 4 are arranged, the bearing steel bars 4 are distributed and arranged on the back of the connecting steel plates 3 in a 5 multiplied by 4 mode, a bracket steel beam 8 is arranged between the bearing concrete wall 1 and the adjacent connecting steel plates 3, the bracket steel beam 8 comprises a warp-wise bearing beam 801 and a weft-wise connecting beam 802, the warp-wise bearing beams 801 are uniformly arrayed in a horizontal straight line between the adjacent connecting steel plates 3, the weft-wise connecting beams 802 are uniformly arrayed in a vertical direction, the edge of the longitudinal bearing beam 801 is welded with the inner wall of the latitudinal connecting beam 802, and a GL1 steel beam 2 is fixedly arranged on one side of the bearing concrete wall 1 close to the bracket steel beam 8; the width of the bracket steel beam 8 is 300mm, two connection modes with the bearing steel beam 4 are adopted, 20 HRB400 bearing steel beams 4 with the diameter of 20 are welded on the back of the connecting steel plate 3, the stability and the bearing force of the building concrete wall are increased by combining the bracket steel beam 8 with the bearing concrete wall 1 with smaller thickness and GL1, the connecting steel plates 3 are fixedly arranged on the two sides of the top surface of the bearing concrete wall 1, the bearing frames 7 are respectively arranged on the outer parts of the connecting steel plates 3 and the bearing concrete wall 1, the bearing steel beams 4 are welded between the adjacent connecting steel plates 3, the bearing steel beams 4 are provided with 20, the bearing steel beams 4 are distributed and arranged between the connecting steel plates 3 by 5 multiplied by 4, the GL1 steel beam 2 is fixedly arranged on the surface of one side of the bearing concrete wall 1, the bottom surface of the GL1 steel beam 2 penetrates between the connecting steel plates 3 through the two sides by the bearing steel beams 4, the connecting steel plates 3 on the top surface of the bearing concrete wall 1 are 700mm multiplied by 600mm in size, the bearing steel beam 4 on the top surface of the bearing concrete wall 1 is of HRB400 type with the diameter of 20mm, the length is 305mm, the length of the bearing anchor bolt 6 is 100mm, 20 HRB400 bearing steel bars 4 and GL1 with the diameter of 20 are connected between the middle of the connecting steel plates 3 by adopting a through hole welding plug, the GL1 of the bearing force of different thicknesses of the bearing concrete wall 1 is connected, the stability and the bearing force of the building concrete wall are increased, when the concrete building is actually used, after the bearing steel bars 4 are welded between the adjacent connecting steel plates 3, the concrete is poured, the bearing steel bars 4 are connected and fixed with the connecting steel plates 3 and the bearing concrete wall 1, the bearing force of the wall body is increased, two GL1 steel beams 2 are arranged on one side of the top surface of the structural beam concrete wall 5, the adjacent GL1 steel beams 2 are mutually vertical, one side of the bottom surface of the structural beam concrete wall 5, far away from the GL1 steel beams 2, is provided with a pair of the connecting steel plates 3, the connecting steel plates 3 are vertical to the bottom surface of the structural beam concrete wall 5, the outer surface edges of the structural beam concrete wall 5 and the connecting steel plates 3 are respectively welded with a bearing frame 7, the equal symmetry of 3 top surfaces of adjacent steel sheets of connection and bottom surface is equipped with bearing crab-bolt 6, and bearing crab-bolt 6 is equipped with 10 altogether, the welding of 6 outer wall surfaces of bearing crab-bolt is equipped with bearing reinforcing bar 4, and bearing reinforcing bar 4 cross-section quadrangle, and 4 outer wall surfaces of bearing reinforcing bar and the welding of 3 inner walls of steel sheets of connection, and bearing reinforcing bar 4 is along the even array distribution of 6 length direction of bearing crab-bolt, adopt the different connected mode of the same part between GL1 girder steel 2 and the bearing concrete wall 1 and the structure roof beam concrete wall 5, carry out the increase of the variety and the suitability that GL1 girder steel 2 connects, use when making GL1 girder steel 2 connect the use, prevent GL1 girder steel 2 and the inside reinforcing bar of structure roof beam concrete wall 5 from producing the collision, the construction of GL1 girder steel 2 of being convenient for is used, increase the suitability.
The second embodiment is as follows:
as shown in fig. 5 and 6, the CAM system of the construction of the building refuge layer simplifies the processing technology of the steel structure with the simple structure:
sp 1: pretreating A, GL1 steel beam 2, connecting steel plate 3, bearing steel bar 4, bearing anchor bolt 6, bearing frame 7 and bracket steel beam 8, polishing and cleaning the surface before blanking, and then performing surface shot blasting and rust removing treatment and sand blasting, wherein the rust removing grade is Sa2.5 grade, and the surface roughness is Rz40-75 mu m;
sp 2: b, preprocessing a steel beam 2 of GL1, a connecting steel plate 3, a bearing steel bar 4, a bearing anchor bolt 6, a bearing frame 7 and a bracket steel beam 8, performing surface dust removal, paint spraying and drying after shot blasting and rust removal, wherein the paint spraying thickness is 20 mu m;
sp 3: coating a primer, namely cleaning the surface of the pretreated steel, and spraying an inorganic zinc-rich primer on the surface of the cleaned steel, wherein the thickness of the primer is 80 mu m;
sp 4: coating finish paint, namely conveying the steel coated with the primer to an assembly site for welding, and coating a layer of polyurethane finish paint on the surface, wherein the thickness of the finish paint is 80 mu m;
sp 5: repairing and coating, namely hoisting and welding the steel coated with the finish paint in sections, and coating and repairing paint on the damaged part of the steel surface, wherein the repaired paint is inorganic zinc-rich primer and epoxy sealing paint, and the thickness of the repaired paint is 40 mu m;
sp 6: and (4) protective coating, namely uniformly spraying fireproof coating on the surface of the steel.
When in shot blasting rust removal, 70% of steel shot and 30% of water chestnut sand are adopted for integral sand washing, dry and clean compressed air with the sand washing pressure of 5-7kg/cm2 is adopted to drive the abrasive to spray on the metal surface, the manual sand blasting grade is ST3, the sand blasting rust removal is carried out on the steel surface, and the quality of the rust removal is the key of the whole coating quality. Oxide scales and iron rust generally exist on the surface of the ferrous metal, and the oxide scales and the iron rust must be removed before coating, otherwise, the adhesive force service life of a coating is seriously influenced, and economic loss is caused; because it can remove scale and rust, and can form a certain roughness on the metal surface, and can increase the binding force between coating and metal surface, because of the fluidity of construction work, the construction adopts dry sand-blasting rust-removing method, generally uses copper sand or steel shot, etc. as abrasive material, and uses the dry and clean compressed air with 5-7kg/cm2 pressure to drive abrasive material to spray on the metal surface, and can remove the scale and rust on the steel surface, and when the steel plate is pretreated, the relative humidity of air can be controlled by table look-up conversion measured by dry-wet thermometer, and the steel plate temperature can be kept at 3 + -0.5 deg.C, and when the steel plate is pretreated, the special pretreatment equipment can be used for automatic ball-blasting rust-removing, dust-removing, paint-spraying and drying before blanking, and when the surface is pretreated, the greasy dirt on the steel surface can be cleaned, Cleaning salt and impurities, cleaning or scrubbing surface oil stains by using a special cleaning agent until no visible oil stains exist, inspecting the cleaning condition of the surface oil stains by using a water spraying method, cleaning chalk marks on the surface, cleaning paint and dust by using manpower, performing sand blasting treatment on the inner surface and the outer surface of a steel product simultaneously during pretreatment sand blasting, performing sand blasting environment detection every 24 hours, performing surface coating on the steel product 4 hours after the pretreatment sand blasting treatment inspection is qualified at a spray distance of 120-200mm and a spray angle of 60-70 degrees, performing pre-coating treatment on difficult-to-spray positions such as welding seams and angular positions of the steel product before coating, selecting an abrasive specification which can meet the requirements of cleanliness and roughness in a standard, measuring the temperature and humidity of a construction environment and the surface temperature of the steel product, performing environment control by using dehumidification, heating and the like if the requirements of the construction environment are not met, and periodically inspecting the abrasive in the use process, after sand blasting, cleaning a workpiece by using a sand sucking and dust sucking group, removing sand and dust by using a high-power sand sucking machine and manual assistance, and performing vacuum dust sucking by using a high-power dust sucking machine to thoroughly clean the surface of the workpiece; and after the dust collection is finished and the self-inspection and the special inspection are qualified, reporting to a supervision engineer for acceptance.
When painting and spraying paint, a thermometer is adopted to measure and control the environmental temperature to be 5-38 ℃, a relative humidity instrument is adopted, a dry humidity rocking meter is adopted to control the air relative humidity to be 85%, painting illumination is carried out by adopting explosion prevention and the like, the surface of a component is required to be checked and marked before painting, a manual or electric tool is adopted to carry out polishing treatment according to the following table, repair welding is carried out when necessary, sharp edges or other edges are ground by a grinding wheel to enable the sharp edges or other edges to be in smooth transition, the minimum curvature radius is 2mm, round corners can not be processed, visible splashes are removed by a scraper or a grinding wheel machine aiming at the splashes on the surface after sand blasting, obtuse splashes can not be polished, repair welding undercut, undercut which is deeper than 0.8mm or narrower than the depth needs repair welding or polishing, repair welding or polishing is carried out aiming at the surface damage to be preprocessed, surface damage which is deeper than 0.8mm, pits or cracks need to be repaired by repair welding or polishing, aiming at manual welding seams, manual welding seams with surface roughness exceeding 3mm or welding seams with impurities are required to be polished by a polisher until the surface roughness is less than 3mm, aiming at automatic welding seams, special treatment is generally not required, aiming at front welding seams, front welding seams with iron grooves and pits are treated according to the requirements of undercut, aiming at welding arcs, treatment is carried out according to the requirements of splash and surface damage, aiming at cutting surfaces, polishing is carried out until the roughness is less than 1mm, when surface spray painting and coating are carried out, coating is carried out within 4 hours after the surface sand blasting treatment is qualified, the coating surface is protected before coating, secondary pollution is prevented, all parts which are difficult to spray such as welding seams, corners and the like are pre-coated before spraying primer, so as to ensure the paint film thickness of the parts, pay attention to the curing period and the mixed service period of paint, construction can be carried out when the curing period is over, and use is forbidden when the mixed service period is exceeded, in the construction process, a proper amount of coating is prepared according to construction requirements, construction is strictly carried out according to a coating process, the coating is uniform, the defects of sagging, leaking spraying, dry spraying and the like do not occur, different paint types select different paint pumps, a spray gun and a working surface keep proper distance and 90-degree angle, the paint can be diluted by not more than 5% of a specified value for convenient spraying, in order to ensure the thickness of a coated dry film, the thickness of the wet film is continuously and automatically measured by applying a wet film card (except inorganic zinc) during coating, the calculation formula is that the thickness of the wet film is equal to the thickness of the dry film, multiplied by (1+ dilution ratio) multiplied by 100 divided by solid content (V), the interval time of recoating is determined according to the actual environmental factors such as temperature and humidity of construction, the like, the strict execution is carried out, parameters such as construction environmental conditions, the types, the number, the coating parts and the like of the paint are correctly recorded, the adhesive tape to be welded is pasted for protection within the range of 50mm, during the coating construction, adopt the cleanness of filter paper and cotton to inspect, detect the viscosity of paint through the viscosity cup, detect the wet film thickness through wet film tester, the mill application should be arranged the component in the workshop as far as possible and is under construction, carries out the application construction to on-the-spot rainy day, because humidity is big, is unfavorable for anticorrosive paint's construction, and this project engineering volume is big simultaneously, and the engineering quality requires highly. Therefore, necessary rainproof measures are required, and a movable coating shed can be erected for relative closed construction.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. CAM system simplification simple structure of layer construction of taking refuge of building, including bearing concrete wall (1), structure roof beam concrete wall (5) and bearing reinforcing bar (4), its characterized in that: the fixed bearing frame (7) that is equipped with of bearing concrete wall (1) outside edge, the fixed steel connecting plate (3) that is equipped with in bearing concrete wall (1) top surface both sides, and steel connecting plate (3) edge and bearing frame (7) side are fixed, steel connecting plate (3) back welding is equipped with bearing reinforcing bar (4), and bearing reinforcing bar (4) are equipped with 20, and bearing reinforcing bar (4) adopt 5 x 4 distribution arrangement at steel connecting plate (3) back, be equipped with bracket girder steel (8) between bearing concrete wall (1) and adjacent steel connecting plate (3), bracket girder steel (8) include warp direction spandrel girder (801) and latitudinal direction tie beam (802), the even array of horizontal straight line between adjacent steel connecting plate (3) of warp direction spandrel girder (801), latitudinal direction tie beam (802) are along the even array of vertical direction, and warp direction spandrel girder (801) edge and latitudinal direction tie beam (802) inner wall welding, a GL1 steel beam (2) is fixedly arranged on one side, close to the corbel steel beam (8), of the bearing concrete wall (1);
the steel plate assembly is characterized in that connecting steel plates (3) are fixedly arranged on two sides of the top surface of the bearing concrete wall (1), bearing frames (7) are arranged outside the connecting steel plates (3) and the bearing concrete wall (1), bearing steel bars (4) are welded between every two adjacent connecting steel plates (3), 20 bearing steel bars (4) are arranged, the bearing steel bars (4) are distributed and arranged between the connecting steel plates (3) in a 5 x 4 mode, a GL1 steel beam (2) is fixedly arranged on the surface of one side of the bearing concrete wall (1), and the bottom surface of the GL1 steel beam (2) penetrates through the connecting steel plates (3) on two sides through the bearing steel bars (4);
two GL1 steel beams (2) are arranged on one side of the top surface of the structural beam concrete wall (5), and the adjacent GL1 steel beams (2) are mutually penetrated and vertical, one side of the bottom surface of the structural beam concrete wall (5) far away from the GL1 steel beam (2) is provided with a pair of connecting steel plates (3), the connecting steel plate (3) is vertical to the bottom surface of the structural beam concrete wall (5), the outer surface edges of the structural beam concrete wall (5) and the connecting steel plate (3) are respectively welded with a bearing frame (7), the top surface and the bottom surface of the adjacent connecting steel plate (3) are respectively symmetrically provided with a bearing anchor bolt (6), 10 bearing anchor bolts (6) are arranged, the outer wall surface of each bearing anchor bolt (6) is welded with a bearing steel bar (4), the section of the bearing steel bar (4) is quadrilateral, the outer wall surface of the bearing steel bar (4) is welded with the inner wall of the connecting steel plate (3), and the bearing reinforcing steel bars (4) are uniformly distributed in an array along the length direction of the bearing anchor bolt (6).
2. The CAM system simplified structure steel structure processing technology for building refuge layer construction is characterized in that:
sp 1: the method comprises the following steps of (A) preprocessing, wherein the GL1 steel beam (2), the connecting steel plate (3), the bearing steel bar (4), the bearing anchor bolt (6), the bearing frame (7) and the bracket steel beam (8) are subjected to surface shot blasting and sand blasting after the surfaces are polished and cleaned before discharging, the rust removal grade is Sa2.5 grade, and the surface roughness is Rz40-75 mu m;
sp 2: pretreating (B), wherein the GL1 steel beam (2), the connecting steel plate (3), the bearing steel bar (4), the bearing anchor bolt (6), the bearing frame (7) and the bracket steel beam (8) are subjected to surface dust removal, paint spraying and drying after shot blasting and rust removal, and the paint spraying thickness is 20 mu m;
sp 3: coating a primer, namely cleaning the surface of the pretreated steel, and spraying an inorganic zinc-rich primer on the surface of the cleaned steel, wherein the thickness of the primer is 80 mu m;
sp 4: coating finish paint, namely conveying the steel coated with the primer to an assembly site for welding, and coating a layer of polyurethane finish paint on the surface, wherein the thickness of the finish paint is 80 mu m;
sp 5: repairing and coating, namely hoisting and welding the steel coated with the finish paint in sections, and coating and repairing paint on the damaged part of the steel surface, wherein the repaired paint is inorganic zinc-rich primer and epoxy sealing paint, and the thickness of the repaired paint is 40 mu m;
sp 6: and (4) protective coating, namely uniformly spraying fireproof coating on the surface of the steel.
3. The CAM system simplified structure for construction of a building refuge layer according to claim 2, characterized in that: the pretreatment surface is cleaned to remove oil stain, salt and impurities on the surface of the steel part, 70% of steel shots and 30% of water chestnut sand are adopted for integral sand washing during shot blasting and rust removal, and the sand washing pressure is 5-7kg/cm2The dry and clean compressed air drives the abrasive to spray the metal surface.
4. The CAM system simplified structure for construction of a building refuge layer according to claim 2, characterized in that: when the pretreatment is performed with shot blasting and rust removal, a dry-wet thermometer is adopted for measurement, then table look-up is carried out, conversion is carried out, the air relative humidity is controlled to be 85%, a steel plate temperature meter is adopted for measurement, the surface temperature of a steel plate is kept to be 3 +/-0.5 ℃, and a dehumidifier, a heating dryer and the like are adopted for achieving the environmental parameter control of sand blasting operation.
5. The CAM system simplified structure for construction of a building refuge layer according to claim 2, characterized in that: and carrying out sand blasting treatment on the inner surface and the outer surface of the steel simultaneously during the pretreatment and sand blasting, and carrying out sand blasting environment detection every 24 hours, wherein the spraying distance during the sand blasting is 120-200mm, and the spraying angle is 60-70 degrees.
6. The CAM system simplified structure for construction of a building refuge layer according to claim 2, characterized in that: and performing surface coating 4 hours after the pretreatment sand blasting treatment is qualified, and performing pre-coating treatment on the difficult-to-spray positions such as the welding seams and the angular positions of the steel parts before coating.
7. The CAM system simplified structure for construction of a building refuge layer according to claim 2, characterized in that: when coating and spraying paint, a thermometer is adopted to measure and control the ambient temperature to be 5-38 ℃, a relative humidity meter and a dry humidity megger are adopted to control the air relative humidity to be 85%, and explosion prevention and the like are adopted to perform painting illumination.
8. The CAM system simplified structure for construction of building refuge layer according to claim 1, characterized in that: the size of the connecting steel plate (3) on the top surface of the bearing concrete wall (1) is 700mm multiplied by 600mm, the bearing steel bar (4) on the top surface of the bearing concrete wall (1) adopts HRB400 type with the diameter of 20mm, the length is 305mm, and the length of the bearing anchor bolt (6) is 100 mm.
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| JP2003138643A (en) * | 2001-11-02 | 2003-05-14 | Mitsui Home Co Ltd | Floor structure |
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- 2021-07-22 CN CN202110831456.2A patent/CN113565221B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003138643A (en) * | 2001-11-02 | 2003-05-14 | Mitsui Home Co Ltd | Floor structure |
| CN102888991A (en) * | 2012-10-25 | 2013-01-23 | 南通纺织职业技术学院 | Large-scale profile steel beam and concrete combined house roof constructing method |
| CN104153465A (en) * | 2014-08-27 | 2014-11-19 | 中建八局第三建设有限公司 | Connecting structure of heavy-load GRC curtain wall system and all-steel main structure |
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