CN115341657A - Steel frame heat insulation system and construction method - Google Patents
Steel frame heat insulation system and construction method Download PDFInfo
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- CN115341657A CN115341657A CN202210972237.0A CN202210972237A CN115341657A CN 115341657 A CN115341657 A CN 115341657A CN 202210972237 A CN202210972237 A CN 202210972237A CN 115341657 A CN115341657 A CN 115341657A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 150
- 239000010959 steel Substances 0.000 title claims abstract description 150
- 238000009413 insulation Methods 0.000 title claims abstract description 104
- 238000010276 construction Methods 0.000 title claims description 19
- 238000004321 preservation Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 9
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 claims description 5
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 13
- 238000010008 shearing Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/66—Sealings
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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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2415—Brackets, gussets, joining plates
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Abstract
The application provides a steel frame heat preservation system includes: the steel column, the steel beam, the heat insulation plate and the shear brace are arranged on the heat insulation plate; the heat insulation board is sequentially provided with a heat insulation and sound insulation layer, a waterproof layer, a protective layer and a reflecting layer from inside to outside; the shear brace includes: the shear support main rod and the plate connecting piece, and the main rod bolt hole and the plate connecting piece bolt hole; the beam-column connecting member includes: the device comprises a square steel pipe, a flange connecting plate, a web connecting plate, a cross brace connecting plate, a structural reinforcing plate and a beam-column connecting piece bolt hole; the plate column connector includes: the first counter-pulling connecting piece is connected with the first counter-pulling connecting piece through a first connecting piece, a first connecting piece and a second connecting piece; beam column connecting piece and board column connecting piece make steel column, girder steel, heated board and shear force prop to be connected and become a whole, and joint strength is high, and connection process convenient and fast, structural integrity is good.
Description
Technical Field
The application belongs to the technical field of constructional engineering, and particularly discloses a steel frame heat preservation system and a construction method thereof.
Background
At present, the building energy consumption accounts for about 30 percent of the total social energy consumption, and the building energy consumption accounts for the largest proportion of the total social energy consumption, so the building energy saving becomes the key for improving the energy utilization rate and reducing the pollution emission, and therefore, a structural heat insulation system is necessary to be perfected, and the energy consumption caused by poor heat insulation effect is fully reduced.
With the acceleration of the progress of building industrialization and housing industrialization in China, the application and research of novel assembly buildings become one of the main heat points of the current building field research. The assembled steel structure heat insulation system has the advantages of simple and convenient construction, high construction speed, controllable construction quality and the like. However, the existing assembly type steel structure heat insulation system has the problems of more field welding work, improper heat bridge treatment, poor heat insulation effect and the like. In view of this, a steel frame thermal insulation system with simple and convenient construction, high construction speed, good thermal insulation effect and controllable construction quality needs to be developed to meet the requirements of building industrialization and building energy conservation.
Disclosure of Invention
In view of the above-mentioned defect or not enough among the prior art, this application aims at providing one kind and can promote the assembly effect, and the construction speed is faster, the higher steel framework heat preservation system of heat preservation effect.
In a first aspect, a steel frame insulation system, comprising: the system comprises a steel column, a steel beam, an insulation board, a shear brace, a beam-column connecting piece for connecting the steel column and the steel beam and a plate-column connecting piece for connecting the steel column and the insulation board; the heat insulation board is sequentially provided with a heat insulation and sound insulation layer, a waterproof layer, a protective layer and a reflecting layer from inside to outside; the shear brace includes: the shear support main rod and the plate connecting piece, and the main rod bolt hole and the plate connecting piece bolt hole; the beam-column connecting member includes: the device comprises square steel pipes, flange connecting plates, web connecting plates, cross brace connecting plates, structural reinforcing plates and beam-column connecting piece bolt holes; the plate column connector includes: the connecting device comprises hollow I-shaped steel, a longitudinal connecting plate, a transverse connecting plate, a first counter-pull connecting piece, a first plate column bolt hole and a second plate column bolt hole.
According to the technical scheme provided by the embodiment of the application, the insulation boards are overlapped in pairs to form a steel structure insulation wall, and triangular plate grooves, pouring holes and vent holes are formed in the splicing positions of the beam plates of the insulation boards; the steel beam of the heat-insulation plate at the joint of the beam plate is not in contact with the heat-insulation plate, and the cast-in-place heat-insulation component can be filled at the joint of the beam plate through the pouring hole.
According to the technical scheme provided by the embodiment of the application, the shear support main rods are arranged between two adjacent steel columns in a crossed manner, and the plate connecting pieces are welded at trisection points of the shear support main rods; the shearing force support main rod and the plate column connecting piece are respectively provided with a main rod bolt hole and a plate connecting piece bolt hole at the end part.
According to the technical scheme that this application embodiment provided, the welding is established to square steel pipe cover on the steel column, eight edge of a wing connecting plates and four web connecting plates are on a parallel with ground and perpendicular to ground welding respectively the square steel pipe outside, eight bridging connecting plates and two structure reinforcing plates perpendicular to ground welding respectively the edge of a wing connecting plate outside with the square steel pipe is inboard, just, the other end and the steel column welding of two structure reinforcing plates.
According to the technical scheme that this application embodiment provided, hollow I-steel can overlap and establish on the steel column, longitudinal tie plate and transverse connection plate weld respectively in the web and the edge of a wing outside of hollow I-steel, just, first plate column bolt hole is all seted up at tip suitable position to longitudinal tie plate and transverse connection plate.
According to the technical scheme that this application embodiment provided, longitudinal tie plate and transverse connection board and second plate column bolt hole interval arrangement, just, the second plate column bolt hole sets up hollow I-steel web does not set up longitudinal tie plate department.
According to the technical scheme provided by the embodiment of the application, the first counter-pulling connecting piece penetrates through the insulation board and the first plate column bolt hole to realize the connection of the insulation board and the plate column connecting piece; the two ends of the first counter-pull connecting piece are covered with L-shaped local heat-insulating strips extending along the height direction of the steel column, and the local heat-insulating strips are made of aerogel or other materials with good heat-insulating performance.
According to the technical scheme provided by the embodiment of the application, the steel column, the steel beam, the heat insulation plate, the shear support, the beam-column connecting piece and the plate-column connecting piece are connected with each other by adopting GFRP or other bolts made of low-thermal-conductivity materials.
In a second aspect, a construction method of a steel frame heat insulation system comprises the following steps: prefabricating a steel column, a steel beam, an insulation board, a shear brace, a beam column connecting piece and a plate column connecting piece in a factory, and arranging bolt holes at proper positions; in addition, a triangular plate groove, a pouring hole and a vent hole are formed in the proper position of the connecting position of the beam plate of the heat insulation plate; installing a steel column at a proper position, and installing a plate column connecting piece and a beam column connecting piece; hoisting the steel beam to a corresponding position, and connecting the steel column and the steel beam through a beam-column connecting piece; installing a shear brace and a heat insulation plate; laying local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates; and pouring the cast-in-place heat insulation component through the pouring hole.
In summary, the present application discloses a steel frame insulation system, based on the above specific technical scheme, the shear brace is used to connect an insulation board and a beam-column connecting piece, the beam-column connecting piece is used to connect a steel column, a steel beam and the shear brace, the plate-column connecting piece is used to connect the steel column and the insulation board, and the bolt connection is adopted, so that the construction operation difficulty is low, the construction speed is high, and sufficient safety reliability is provided; the inside reinforcing plate that is provided with of beam column connecting piece has strengthened beam column connecting piece's intensity, makes beam column connected node's atress more reasonable, has improved beam column connected node's node intensity, makes the holistic stability of structure better, just, be provided with the shearing force on the beam column connecting piece and prop the connecting plate, make the shearing force prop more convenient and fast reliable and link together with beam column connecting piece.
The two insulation boards are overlapped to form the wall body of the steel frame, and the insulation boards and the steel columns are connected through the board column connecting pieces and the shear braces; the longitudinal connecting plates and the transverse connecting plates of the plate column connecting piece are arranged at intervals, a web plate of the hollow I-beam, which is not provided with the longitudinal connecting plates and the transverse connecting plates, is provided with a second plate column bolt hole, the second plate column bolt hole is used for connecting a steel column and the plate column connecting piece, and a first counter-pull connecting piece penetrating through the longitudinal connecting plates and the transverse connecting plates is used for connecting the heat-insulating plate and the beam column connecting piece, so that the connecting mode is convenient, quick, safe and reliable, and the structural integrity of the connecting mode is not influenced; the beam-slab joints are filled to form cast-in-place heat insulation components, so that heat loss possibly caused by the beam-slab joints is reduced, the heat insulation effect of the beam-slab joints is enhanced, and the overall heat insulation effect is improved; in addition, the first counter-pulling connecting piece at the plate column connecting part is covered with the local heat preservation strip, so that a heat bridge at the plate column connecting part is eliminated, and the heat preservation effect is further improved.
The welding of the board connecting piece that this application shearing force propped is in the trisection department that the shearing force propped the mobile jib, utilizes the bolted connection two-layer heated board that passes the board connecting piece, has strengthened the joint strength of heated board, has improved the wholeness of structure, in addition, steel column, girder steel, heated board, shearing force prop, the bolt of GFRP or other low heat conductivity materials is all adopted in the mutual connection of beam column connecting piece and board column connecting piece, has reduceed the calorific loss that alternate bolt department probably caused, has strengthened holistic heat preservation effect.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a steel frame insulation system;
FIG. 2 is a schematic structural view of a beam-slab joint;
FIG. 3 is a schematic view of a shear support;
FIG. 4 shows a top view of the structure of the beam-column connection;
FIG. 5 is a front view of the beam-column connection;
FIG. 6 is a schematic view of the construction of a plate column connector;
FIG. 7 is a schematic view of a first counter-pull connector and a partial insulating strip;
FIG. 8 is a schematic view of a bolted beam panel;
figure 9 shows a schematic view of the clamped beam panel construction.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, which illustrate a schematic structural diagram of a steel frame insulation system.
In fig. 1, a steel frame insulation system comprises: steel column 1, girder steel 2, heated board 3 and shear brace 4 to and be used for connecting steel column 1 and girder steel 2's beam column connecting piece 5 and be used for connecting steel column 1 and heated board 3's board column connecting piece 6.
Wherein:
referring to the structure of the beam-slab joint shown in fig. 2, the heat-insulating board 3 is sequentially provided with a heat-insulating and sound-insulating layer 301, a waterproof layer 302, a protective layer 303 and a reflective layer 304 from inside to outside, and the heat-insulating and sound-insulating layer 301 and the reflective layer 304 are used for double-layer heat insulation, so that the heat-insulating performance of the structure is enhanced.
Referring to the structure of the shear brace shown in fig. 3, the shear brace 4 includes: a shear support stem 401 and a plate connector 402, and a stem bolt hole 403 and a plate connector bolt hole 404.
Referring to the structure of the beam-column connecting member shown in fig. 4 and 5, the beam-column connecting member 5 includes: square steel tubes 501, flange connection plates 502, web connection plates 503, cross brace connection plates 504 and structural reinforcement plates 505, and beam column connector bolt holes 506.
Referring to the structure of the plate column connector shown in fig. 6, the plate column connector 6 includes: hollow i-section 601, longitudinal connecting plate 602, transverse connecting plate 603 and first counter-pull connector 606, and first and second plate stud holes 604 and 605.
After the steel column 1, the steel beam 2, the heat insulation plate 3, the shear brace 4, the beam-column connecting piece 5 and the plate-column connecting piece 6 are manufactured, the steel column 1 is installed at a proper position, the plate-column connecting piece 6 and the beam-column connecting piece 5 are installed, the plate-column connecting piece 6 and the beam-column connecting piece 5 are welded together, the structural integrity is enhanced, the steel beam 2 is hoisted to a corresponding position, and the steel column 1 and the steel beam 2 are connected through the beam-column connecting piece 5; installing a shear brace 4 and an insulation board 3; the shear support 4 is used for connecting the adjacent steel columns 1 and connecting the heat-insulation plates 3; the beam column connecting piece 5 is used for connecting the steel column 1, the steel beam 2 and the shear brace 4, the plate column connecting piece 6 is used for connecting the steel column 1 and the heat insulation plate 3, and is connected through bolts, so that the construction operation difficulty is low, the construction speed is high, and the sufficient safety and reliability are realized.
Referring to fig. 2, in a preferred embodiment, the insulation boards 3 are stacked two by two to form a steel structure insulation wall, and triangular board grooves 7, pouring holes 8 and vent holes 9 are formed in the insulation boards 3 at the joints of the beam boards. Specifically, the steel beam 2 of the heat-insulation board 3 is not in contact with the heat-insulation board 3 at the beam-slab connection position, and the cast-in-place heat-insulation component 10 can be filled at the beam-slab connection position through the pouring hole 8; the pouring holes 8 and the vent holes 9 are all achieved through pre-buried PVC pipes.
After the steel column 1, the steel beam 2, the heat-insulation board 3, the shear brace 4, the beam-column connecting piece 5 and the plate-column connecting piece 6 are connected and fixed, the beam-slab joint is filled through a pouring hole 8 to form a cast-in-place heat-insulation component 10, an air vent 9 is convenient for air to be removed in the filling process, and a triangular plate groove 7 is used for reinforcing the connection between the cast-in-place heat-insulation component 10 and the heat-insulation board 3; the heat loss possibly caused by the beam-slab joint is reduced, and the heat insulation effect of the beam-slab joint is enhanced.
Referring to fig. 3, in the above embodiment, the shear support main rod 401 is crosswise disposed between two adjacent steel columns 1. Specifically, the plate connecting piece 402 is welded at the trisection point of the shear support main rod 401; the ends of the shear support main rod 401 and the plate column connecting piece 402 are respectively provided with a main rod bolt hole 403 and a plate connecting piece bolt hole 404.
After steel column 1 and girder steel 2 installation are accomplished, install the shear force through beam column connecting piece 5 between adjacent steel column 1 and prop 4, installation heated board 3 to through board connecting piece 402 and low heat conductivity bolt, connect the reinforcement to two-layer heated board 3, strengthened the joint strength of heated board, improved the wholeness of structure, just, the bolt is provided with the aerogel outward, prevents that bolt department from causing calorific loss.
Referring to fig. 4 and 5, in the above embodiment, the square steel tube 501 is sleeved and welded on the steel column 1. Specifically, the eight flange connecting plates 502 and the four web connecting plates 503 are welded to the outer side of the square steel tube 501 in parallel to the ground and perpendicular to the ground, the eight bridging connecting plates 504 and the two structural reinforcing plates 505 are welded to the outer side of the flange connecting plates 502 and the inner side of the square steel tube 501 in perpendicular to the ground, and the other ends of the two structural reinforcing plates 505 are welded to the steel column 1.
The square steel tube 501 and the structural reinforcing plate 505 are welded on the steel column 1, so that the steel column 1 is connected with the beam-column connecting piece 5; the flange connecting plate 502 and the web connecting plate 503 are matched with the beam-column connecting piece bolt hole 506 and the low-thermal-conductivity bolt, so that the connection between the steel beam 2 and the beam-column connecting piece 5 is realized; the shear brace connecting plate 504 is matched with a beam-column connecting piece bolt hole 506 and a low-thermal-conductivity bolt, so that the connection of a shear brace 4 and a beam-column connecting piece 5 is realized; adopt bolted connection completely, connect convenient and the reliability is high, in addition, be provided with structure reinforcing plate 505, make beam column connected node's atress more reasonable, improved beam column connected node's node intensity, make the holistic stability of structure better, be provided with shear support connecting plate 504, make shear support 4 link together with beam column connecting piece 5 more convenient and more reliably.
Referring to fig. 6, in the above embodiment, the hollow i-beam 601 may be sleeved on the steel column 1, the longitudinal connecting plate 602 and the transverse connecting plate 603 are respectively welded to the outer sides of the web and the flange of the hollow i-beam 601, and the longitudinal connecting plate 602 and the transverse connecting plate 603 are both provided with the first plate-column bolt hole 604 at suitable positions on the end portions. Specifically, the longitudinal connecting plates 602 and the transverse connecting plates 603 are arranged at intervals with second plate column bolt holes 605, the second plate column bolt holes 605 are arranged at the positions where the longitudinal connecting plates 602 are not arranged on the web of the hollow i-shaped steel 601, and the distance between two adjacent longitudinal connecting plates 602 or transverse connecting plates 603 in the height direction of the steel column 2 is recommended to be 400-600mm, so that the plate column is higher in connecting strength and better in integrity.
The hollow I-shaped steel 601 is matched with a second plate column bolt hole 605 and a low-thermal-conductivity bolt, so that the connection between the steel column 1 and the plate column connecting piece 6 is realized; the longitudinal connecting plate 602, the transverse connecting plate 603 and the first counter-pull connecting piece 606 are matched with the first plate column bolt hole 604, so that the connection between the heat insulation plate 3 and the plate column connecting piece 6 is realized; the connection mode is convenient, fast, safe and reliable, and the structural integrity of the connector is not influenced.
Referring to fig. 7, in the above embodiment, the first counter-pull connecting member 606 passes through the insulation board 3 and the first plate-column bolt hole 604, so as to connect the insulation board 3 and the plate-column connecting member 6; specifically, the two ends of the first counter-pulling connecting piece 606 are covered with L-shaped local heat-insulating strips 11 extending along the height direction of the steel column 1, and the local heat-insulating strips 11 are made of aerogel or other materials with good heat-insulating performance.
After the shear brace 4 is installed and fixed, the heat insulation plate 3 is hoisted to a corresponding position, and the heat insulation plate 3 and the plate column connecting piece 6 are connected through the first counter-pull connecting piece 606, so that the connection is convenient, quick, safe and reliable; the local heat preservation strip 11 made of aerogel materials covers the first counter-pulling connecting piece 606 at the joint of the plate column, so that a heat bridge at the joint of the plate column is eliminated, and the heat preservation effect is further improved.
Referring to fig. 8 and 9, as another preferred embodiment, a beam-slab connecting device 12 may be disposed at a beam-slab connection position for reinforcing connection between the insulation board 4 and the whole body; alternatively, the first beam panel connection device 121 or the second beam panel connection device 122 may be employed.
In a specific application scenario, when the first beam-slab connecting device 121 is used, in fig. 8, the first beam-slab connecting device 121 includes: the steel beam connecting plate 1211 is welded on the lower flange of the steel beam 2, and is provided with bolt holes for inserting the second counter-pulling connecting piece 1212; in addition, the second counter-pulling connecting pieces 1212 are arranged at intervals, and the interval distance is recommended to be 400-600mm, so that the influence on the heat preservation effect of the beam-slab joint is reduced as much as possible while the connection strength of the beam-slab is ensured.
After the insulation board 3 is connected and fixed with the board column connecting pieces 6 and the shear braces 4, second counter-pull connecting pieces 1212 are inserted to realize the connection and fixation of the steel beam 2 and the insulation board 3, so that the connection strength of the insulation board 3 is enhanced, the structural integrity is improved, a steel beam connecting plate 1211 is welded on the lower flange of the steel beam 2, the strength of the steel beam 2 is enhanced, and the safety guarantee of the structure is improved; and, the second pair of pull connectors 1212 is made of GFRP or other low thermal conductivity material, which reduces the heat loss that may be caused at the second pair of pull connectors 1212.
In a specific application scenario, when the second beam-slab connecting device 122 is used, in fig. 9, the second beam-slab connecting device 122 includes: the T-shaped connecting plate 1221, the T-shaped supporting plate 1222, the connecting screw 1223, the fixture block 1224 and the spring 1225; the flange of the T-shaped connecting plate 1221 is anchored to the protective layer 203, and a web plate of the T-shaped connecting plate 1221 is provided with a bolt hole matched with the connecting screw 1223; the web of the T-shaped supporting plate 1222 is welded on the lower flange of the steel beam 2, the fixture block 1224 and the spring 1225 are placed between the lower flange of the steel beam 2 and the flange of the T-shaped supporting plate 1221, one end of the spring 1225 is connected with the web of the T-shaped supporting plate 1221, and the other end of the spring 1224 is connected with the fixture block 1224; the connecting screw 1223 is in a variable cross-section form, and one end of the small cross section of the connecting screw 1223 is placed in a bolt hole formed in the lower flange of the steel beam 2; in addition, the second beam-slab connecting devices 122 are arranged at intervals, and the interval distance is recommended to be 400-600mm, so that the influence on the heat preservation effect of the beam-slab joint is reduced as much as possible while the beam-slab connecting strength is ensured.
When the heat insulation board 3 is installed, the web plate of the T-shaped connecting plate 1221 pushes the fixture block 1224, the fixture block 1224 moves towards the spring 1225, the connecting screw 1223 immediately falls into a bolt hole formed in the web plate of the T-shaped connecting plate 1221, and the second beam-slab connecting device 122 is started to connect the heat insulation board 3 and the steel beam 2; the beam-slab connection is automatic, so that labor force is greatly saved, the connection quality is reliable, and the structure has higher integral stability; and, T type connecting plate 1221 adopts GFRP or other low heat conductivity material, has reduced the heat loss that the roof beam board junction probably caused.
In order to obtain the steel frame heat insulation system in the above embodiment, the present application further provides a specific construction step of the steel frame heat insulation system, that is: the method comprises the following steps:
prefabricating a steel column, a steel beam, an insulation board, a shear brace, a beam column connecting piece and a plate column connecting piece in a factory, and arranging bolt holes at proper positions; in addition, a triangular plate groove, a pouring hole and a vent hole are formed in the proper position of the connection position of the beam plate of the heat insulation plate;
installing a steel column at a proper position, and installing a plate column connecting piece and a beam column connecting piece;
hoisting the steel beam to a corresponding position, and connecting the steel column and the steel beam through a beam-column connecting piece;
installing a shear brace and a heat insulation plate;
laying local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates;
and pouring the cast-in-place heat insulation component through the pouring hole.
The foregoing description is only exemplary of the preferred embodiments of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. A steel frame heat preservation system which characterized in that:
the method comprises the following steps: the steel column comprises a steel column (1), a steel beam (2), an insulation board (3), a shear brace (4), a beam-column connecting piece (5) for connecting the steel column (1) and the steel beam (2) and a plate-column connecting piece (6) for connecting the steel column (1) and the insulation board (3);
the heat-insulation board (3) is sequentially provided with a heat-insulation sound-insulation layer (301), a waterproof layer (302), a protective layer (303) and a reflecting layer (304) from inside to outside;
the shear brace (4) comprises: a shear support main rod (401) and a plate connecting piece (402), as well as a main rod bolt hole (403) and a plate connecting piece bolt hole (404);
the beam-column connection member (5) includes: the beam-column connecting piece comprises square steel pipes (501), flange connecting plates (502), web connecting plates (503), cross brace connecting plates (504), structural reinforcing plates (505) and beam-column connecting piece bolt holes (506);
the plate-column connection (6) comprises: the connecting structure comprises hollow I-shaped steel (601), a longitudinal connecting plate (602), a transverse connecting plate (603), a first counter-pull connecting piece (606), a first plate stud bolt hole (604) and a second plate stud bolt hole (605).
2. The steel frame insulation system of claim 1, wherein:
the heat insulation plates (3) are overlapped in pairs to form a steel structure heat insulation wall, and triangular plate grooves (7), pouring holes (8) and vent holes (9) are formed in the heat insulation plates (3) at the splicing positions of the beam plates; the steel beam (2) of the heat-insulation plate (3) is not in contact with the heat-insulation plate (3) at the beam-slab joint, and the cast-in-place heat-insulation component (10) can be filled at the beam-slab joint through the pouring hole (8).
3. The steel frame insulation system of claim 1, wherein:
the shear support main rod (401) is arranged between two adjacent steel columns (1) in a crossed mode, and the plate connecting piece (402) is welded at the trisection point of the shear support main rod (401); the end parts of the shear support main rod (401) and the plate column connecting piece (402) are respectively provided with a main rod bolt hole (403) and a plate connecting piece bolt hole (404).
4. The steel frame insulation system of claim 1, wherein:
the square steel tube (501) is sleeved and welded on the steel column (1), the eight flange connecting plates (502) and the four web connecting plates (503) are welded on the outer side of the square steel tube (501) in a mode of being parallel to the ground and perpendicular to the ground respectively, the eight cross brace connecting plates (504) and the two structural reinforcing plates (505) are welded on the outer side of the flange connecting plates (502) and the inner side of the square steel tube (501) in a mode of being perpendicular to the ground respectively, and the other ends of the two structural reinforcing plates (505) are welded with the steel column (1).
5. The steel frame insulation system of claim 1, wherein:
the hollow I-shaped steel (601) can be sleeved on the steel column (1), the longitudinal connecting plate (602) and the transverse connecting plate (603) are respectively welded to the outer sides of a web plate and a flange of the hollow I-shaped steel (601), and the longitudinal connecting plate (602) and the transverse connecting plate (603) are respectively provided with a first plate-column bolt hole (604) at a proper position of the end part.
6. The steel frame insulation system of claim 5, wherein:
the longitudinal connecting plates (602) and the transverse connecting plates (603) are arranged at intervals with second plate column bolt holes (605), and the second plate column bolt holes (605) are arranged at the positions where the longitudinal connecting plates (602) are not arranged on the web of the hollow I-shaped steel (601).
7. The steel frame insulation system of claim 1, wherein:
the first counter-pulling connecting piece (606) penetrates through the heat insulation plate (3) and the first plate column bolt hole (604) to realize the connection of the heat insulation plate (3) and the plate column connecting piece (6); the end part of the first counter-pulling connecting piece (606) is covered with an L-shaped local heat-insulating strip (11) extending along the height direction of the steel column (1), and the local heat-insulating strip (11) is made of aerogel or other materials with good heat-insulating performance.
8. The steel frame insulation system of claim 1, wherein:
the steel column (1), the steel beam (2), the heat insulation plate (3), the shear support (4), the beam-column connecting piece (5) and the plate-column connecting piece (6) are connected with each other through GFRP or other bolts made of low-heat-conductivity materials.
9. A construction method of a steel frame heat insulation system is characterized by comprising the following steps:
the method comprises the following steps:
prefabricating a steel column, a steel beam, an insulation board, a shear brace, a beam column connecting piece and a plate column connecting piece in a factory, and arranging bolt holes at proper positions; in addition, a triangular plate groove, a pouring hole and a vent hole are formed in the proper position of the connecting position of the beam plate of the heat insulation plate;
installing a steel column at a proper position, and installing a plate column connecting piece and a beam column connecting piece;
hoisting the steel beam to a corresponding position, and connecting the steel column and the steel beam through a beam-column connecting piece;
installing a shear brace and a heat insulation plate;
laying local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates;
and pouring the cast-in-place heat insulation component through the pouring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210972237.0A CN115341657B (en) | 2022-08-16 | Steel frame heat preservation system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210972237.0A CN115341657B (en) | 2022-08-16 | Steel frame heat preservation system and construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN115341657A true CN115341657A (en) | 2022-11-15 |
| CN115341657B CN115341657B (en) | 2024-04-26 |
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