CN115341657B - Steel frame heat preservation system and construction method - Google Patents
Steel frame heat preservation system and construction method Download PDFInfo
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- CN115341657B CN115341657B CN202210972237.0A CN202210972237A CN115341657B CN 115341657 B CN115341657 B CN 115341657B CN 202210972237 A CN202210972237 A CN 202210972237A CN 115341657 B CN115341657 B CN 115341657B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 157
- 239000010959 steel Substances 0.000 title claims abstract description 157
- 238000004321 preservation Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title description 15
- 238000009413 insulation Methods 0.000 claims abstract description 80
- 239000010410 layer Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 8
- 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
- 238000005266 casting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 13
- 238000005265 energy consumption Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Joining Of Building Structures In Genera (AREA)
- Building Environments (AREA)
Abstract
The application provides a steel frame heat preservation system, which comprises: the heat-insulating plate comprises a steel column, a steel beam, a heat-insulating plate and a shear brace, and 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 heat-insulating plate; the heat insulation board is sequentially provided with a heat insulation sound insulation layer, a waterproof layer, a protective layer and a reflecting layer from inside to outside; the shear strut includes: a shear stay main rod and plate connector and a main rod bolt hole and a plate connector bolt hole; the beam column connector comprises: square steel pipes, flange connecting plates, web connecting plates, scissor brace connecting plates and structural reinforcing plates, and beam column connecting piece bolt holes; the panel post connector includes: the device comprises hollow I-steel, a longitudinal connecting plate, a transverse connecting plate, a first pull-to-pull connecting piece, a first plate column bolt hole and a second plate column bolt hole; the beam column connecting piece and the plate column connecting piece enable the steel column, the steel beam, the heat insulation plate and the shear support to be connected into a whole, the connecting strength is high, the connecting process is convenient and fast, and the 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% of the total social energy consumption, and the proportion of the total social energy consumption is the largest, so that the building energy conservation becomes the key for improving the energy utilization rate and reducing the pollution emission, and therefore, the heat preservation system of the structure is necessary to be perfected, and the energy loss caused by poor heat preservation effect is sufficiently reduced.
Along with the acceleration of the progress of building industrialization and residence industrialization in China, the application and research of the novel fabricated building become one of main hot spots for the research in the current building field. The assembled steel structure heat preservation system has the advantages of simple and convenient construction, high construction speed, controllable construction quality and the like. However, the existing assembled steel structure heat preservation system has the problems of more field welding work, improper treatment of heat bridge problems, poor heat preservation effect and the like. In view of the above, it is necessary to develop a steel frame insulation system which is simple and convenient to construct, fast in construction speed, good in insulation effect and controllable in construction quality, so as to meet the requirements of building industrialization and building energy conservation.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings in the prior art, the present application aims to provide a steel frame insulation system capable of improving assembly effect, having faster construction speed and higher insulation effect.
In a first aspect, a steel frame insulation system comprises: the heat-insulating plate comprises a steel column, a steel beam, a heat-insulating plate and a shear brace, and 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 heat-insulating plate; the heat insulation board is sequentially provided with a heat insulation sound insulation layer, a waterproof layer, a protective layer and a reflecting layer from inside to outside; the shear strut includes: a shear stay main rod and plate connector and a main rod bolt hole and a plate connector bolt hole; the beam column connector comprises: square steel pipes, flange connecting plates, web connecting plates, scissor brace connecting plates and structural reinforcing plates, and beam column connecting piece bolt holes; the panel post connector includes: hollow I-steel, longitudinal connection board, transverse connection board and first pair of connecting piece that draws, first board post bolt hole and second board post bolt hole.
According to the technical scheme provided by the embodiment of the application, the heat-insulating plates are overlapped in pairs to form a steel structure heat-insulating wall body, and triangular plate grooves, pouring holes and vent holes are formed in the joint of the beam plates of the heat-insulating plates; the steel beam of the heat-insulating plate at the joint of the beam and the plate is not contacted with the heat-insulating plate, and the joint of the beam and the plate can be filled with a cast-in-place heat-insulating member through casting holes.
According to the technical scheme provided by the embodiment of the application, the shear support main rod is arranged between two adjacent steel columns in a crossing way, and the plate connecting piece is welded at the trisection point of the shear support main rod; the shear stay mobile jib and board connecting piece are offered mobile jib bolt hole and board connecting piece bolt hole respectively at the tip.
According to the technical scheme provided by the embodiment of the application, the square steel pipe is sleeved and welded on the steel column, the eight flange connecting plates and the four web connecting plates are respectively welded on the outer side of the square steel pipe in parallel with the ground and perpendicular to the ground, the eight scissor support connecting plates and the two structural reinforcing plates are respectively welded on the outer side of the flange connecting plates and the inner side of the square steel pipe in perpendicular to the ground, and the other ends of the two structural reinforcing plates are welded with the steel column.
According to the technical scheme provided by the embodiment of the application, the hollow I-steel can be sleeved on the steel column, the longitudinal connecting plate and the transverse connecting plate are respectively welded on the outer sides of the web plate and the flange of the hollow I-steel, and the longitudinal connecting plate and the transverse connecting plate are respectively provided with a first plate column bolt hole at a proper position of the end part.
According to the technical scheme provided by the embodiment of the application, the longitudinal connecting plates and the transverse connecting plates are arranged at intervals with the second plate column bolt holes, and the second plate column bolt holes are arranged at the positions where the hollow I-steel webs are not provided with the longitudinal connecting plates.
According to the technical scheme provided by the embodiment of the application, the first pair of pull connecting pieces penetrate through the heat insulation plate and the first plate column bolt holes to realize the connection of the heat insulation plate and the plate column connecting pieces; the first is to drawing the connecting piece both ends to cover and to have the local heat preservation strip that L shape along steel column direction of height extended, just, local heat preservation strip adopts aerogel or other heat preservation performance good materials.
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 by bolts made of GFRP or other low-thermal-conductivity materials.
In a second aspect, a construction method of a steel frame insulation system includes the following steps: prefabricating steel columns, steel beams, heat insulation plates, shear supports, beam column connectors and plate column connectors in factories, and arranging bolt holes at proper positions; the heat-insulating plate is provided with a triangular plate groove, a pouring hole and a vent hole at proper positions at the joints of the beam plates; installing steel columns at proper positions, and installing column connectors and beam column connectors; hoisting the steel beam to the corresponding position, and connecting the steel column and the steel beam through a beam column connecting piece; installing a shear stay and a heat insulation plate; paving local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates; and pouring the cast-in-place heat preservation component through the pouring holes.
In summary, the application discloses a steel frame heat insulation system, based on the above specific technical scheme, the shear support is used for connecting a heat insulation board and a beam column connecting piece, the beam column connecting piece is used for connecting a steel column, a steel beam and the shear support, and the board column connecting piece is used for connecting the steel column and the heat insulation board, and is connected by bolts, so that the construction operation difficulty is low, the construction speed is high, and the safety and reliability are sufficient; the inside reinforcing plate that is provided with of beam column connecting piece has strengthened the intensity of beam column connecting piece, makes the atress of beam column connected node more reasonable, has improved beam column connected node's node intensity, makes the holistic stability of structure better, just, be provided with the shear force on the beam column connecting piece and prop the connecting plate, make the shear force prop more convenient reliably and be in the same place with the beam column connecting piece connection.
According to the application, two heat-insulating plates are overlapped to form a wall body of a steel frame, and a plate column connecting piece and a shear support are used for connecting the heat-insulating plates and the steel column; the longitudinal connecting plates and the transverse connecting plates of the plate column connecting pieces are arranged at intervals, the hollow I-steel is not provided with a second plate column bolt hole on a web plate at the position of the longitudinal connecting plates and the transverse connecting plates, the second plate column bolt hole is used for connecting a steel column with the plate column connecting pieces, and a first opposite-pull connecting piece penetrating through the longitudinal connecting plates and the transverse connecting plates is used for connecting a heat-insulating plate with a beam column connecting piece; the beam-slab connection is filled with the cast-in-place heat preservation component, so that the heat loss possibly caused by the beam-slab connection is reduced, the heat preservation effect of the beam-slab connection is enhanced, and the overall heat preservation effect is improved; in addition, the first pair of pull connecting pieces at the connecting positions of the plate columns are covered with the local heat preservation strips, so that a heat bridge at the connecting positions of the plate columns is eliminated, and the heat preservation effect is further improved.
The plate connecting piece of the shear brace is welded at the trisection point of the main rod of the shear brace, and the two layers of heat insulation plates are connected by the bolts penetrating through the plate connecting piece, so that the connection strength of the heat insulation plates is enhanced, the structural integrity is improved, and in addition, the steel columns, the steel beams, the heat insulation plates, the shear brace, the beam column connecting piece and the plate column connecting piece are connected by bolts made of GFRP or other low-thermal-conductivity materials, so that the heat loss possibly caused by penetrating the bolts is reduced, and the integral heat insulation effect is enhanced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a steel frame insulation system;
FIG. 2 is a schematic view of the structure of a beam-slab joint;
FIG. 3 shows a schematic view of the shear strut;
FIG. 4 is a top view of the beam-column connector;
FIG. 5 is a front view of the beam-column connector;
FIG. 6 is a schematic view of a plate column connector;
FIG. 7 is a schematic view of the first pair of pull connectors and a partial heat preservation bar;
FIG. 8 is a schematic view of a bolted beam panel;
Fig. 9 is a schematic view of a structure of a clamped beam plate.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 for a schematic structural diagram of a steel frame insulation system.
In fig. 1, a steel frame insulation system comprising: steel column 1, girder steel 2, heated board 3 and shear force prop 4, be used for connecting steel column 1 with girder steel 2's beam column connecting piece 5 and be used for connecting steel column 1 with heated board 3's board post connecting piece 6.
Wherein:
Referring to the structure of the beam-slab joint shown in fig. 2, the thermal insulation board 3 is sequentially provided with a thermal insulation and sound insulation layer 301, a waterproof layer 302, a protective layer 303 and a reflective layer 304 from inside to outside, and the thermal insulation performance of the structure is enhanced by adopting the thermal insulation and sound insulation layer 301 and the reflective layer 304 to insulate heat in a double-layer manner.
Referring to the structure of the shear stay shown in fig. 3, the shear stay 4 includes: a shear stay bar 401 and plate connector 402, and a main bar bolt hole 403 and plate connector bolt hole 404.
Referring to the structure of the beam-column connector shown in fig. 4 and 5, the beam-column connector 5 includes: square steel pipes 501, flange connection plates 502, web connection plates 503, a cross brace connection plate 504 and a structural reinforcement plate 505, and beam column connection bolt holes 506.
Referring to the structure of the post connector shown in fig. 6, the post connector 6 includes: hollow i-steel 601, longitudinal web 602, transverse web 603 and first pair of pull connectors 606, first and second stud bolt holes 604, 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 beam 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 the corresponding position, and the steel column 1 and the steel beam 2 are connected through the beam column connecting piece 5; a shear stay 4 and a heat insulation plate 3 are installed; the shear brace 4 is used for connecting adjacent steel columns 1 and connecting an insulation board 3; the beam column connecting piece 5 is used for connecting the steel column 1, the steel beam 2 and the shear stay 4, the plate column connecting piece 6 is used for connecting the steel column 1 and the heat insulation plate 3, and the construction operation difficulty is low, the construction speed is high, and the sufficient safety and reliability are achieved.
Referring to fig. 2, in a preferred embodiment, the heat insulation boards 3 are stacked two by two to form a steel structure heat insulation wall, and the heat insulation boards 3 are provided with triangular board grooves 7, pouring holes 8 and ventilation holes 9 at the joints of the beam and the board. Specifically, the steel beam 2 of the heat-insulating plate 3 at the joint of the beam and the plate is not contacted with the heat-insulating plate 3, and the cast-in-place heat-insulating member 10 can be filled at the joint of the beam and the plate through the casting hole 8; the pouring holes 8 and the vent holes 9 are all realized through pre-buried PVC pipes.
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 connected and fixed, filling and forming a cast-in-place heat insulation member 10 at the beam plate connecting part through a pouring hole 8, wherein an air vent 9 is convenient for air to be seen and discharged in the filling process, and a triangular plate groove 7 is used for reinforcing the connection between the cast-in-place heat insulation member 10 and the heat insulation plate 3; the heat loss possibly caused by the beam-slab joint is reduced, and the heat preservation effect of the beam-slab joint is enhanced.
Referring to fig. 3, in the above embodiment, the shear supporting main rods 401 are disposed between two adjacent steel columns 1 in a crossing manner. Specifically, the plate connector 402 is welded at the third bisector of the shear stay 401; the shear stay 401 and the plate connector 402 are provided with a main rod bolt hole 403 and a plate connector bolt hole 404 at the ends respectively.
After the steel column 1 and the steel beam 2 are installed, the shear struts 4 are installed between the adjacent steel columns 1 through the beam column connecting pieces 5, the heat insulation plates 3 are installed, and the two layers of heat insulation plates 3 are connected and reinforced through the plate connecting pieces 402 and the low-thermal-conductivity bolts, so that the connection strength of the heat insulation plates is enhanced, the structural integrity is improved, aerogel is arranged outside the bolts, and heat loss is prevented at the bolts.
Referring to fig. 4 and 5, in the above embodiment, the square steel pipe 501 is sleeved and welded on the steel column 1. Specifically, the eight flange connection plates 502 and the four web connection plates 503 are welded on the outer side of the square steel pipe 501 in parallel to the ground and perpendicular to the ground, the eight scissor brace connection plates 504 and the two structural reinforcement plates 505 are welded on the outer side of the flange connection plates 502 and the inner side of the square steel pipe 501 in perpendicular to the ground, and the other ends of the two structural reinforcement plates 505 are welded with the steel column 1.
The square steel pipe 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 connection plate 502 and the web connection plate 503 are matched with beam column connection piece bolt holes 506 and low-thermal-conductivity bolts, so that the steel beam 2 is connected with the beam column connection piece 5; the shear stay connecting plate 504 is matched with a beam column connecting piece bolt hole 506 and a low thermal conductivity bolt to realize the connection of the shear stay 4 and the beam column connecting piece 5; the bolt connection is adopted completely, the connection is convenient and the reliability is high, in addition, the structure reinforcing plate 505 is arranged, so that the stress of the beam column connection node is more reasonable, the node strength of the beam column connection node is improved, the overall stability of the structure is better, the shear support connecting plate 504 is arranged, and the shear support 4 is more conveniently and reliably connected with the beam column connecting piece 5.
Referring to fig. 6, in the above embodiment, the hollow i-steel 601 may be sleeved on the steel column 1, the longitudinal connecting plate 602 and the transverse connecting plate 603 are welded on the outer sides of the web and the flange of the hollow i-steel 601, and the longitudinal connecting plate 602 and the transverse connecting plate 603 are provided with first plate column bolt holes 604 at appropriate positions of the end portions. Specifically, the longitudinal connecting plates 602 and the transverse connecting plates 603 are arranged at intervals with the 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 webs of the hollow I-steel 601, and the spacing between the two adjacent longitudinal connecting plates 602 or transverse connecting plates 603 along the height direction of the steel column 2 is recommended to be 400-600mm, so that the connection strength of the plate column is higher, and the integrity is better.
The hollow I-steel 601 is matched with a second plate column bolt hole 605 and a low-thermal-conductivity bolt to realize the connection of the steel column 1 and the plate column connecting piece 6; the longitudinal connecting plate 602, the transverse connecting plate 603 and the first pair of pull connecting pieces 606 are matched with the first plate column bolt holes 604, so that the connection between the heat insulation plate 3 and the plate column connecting pieces 6 is realized; the connection mode is convenient and fast, safe and reliable, and the structural integrity is not affected.
Referring to fig. 7, in the above embodiment, the first pair of pull connectors 606 pass through the insulation board 3 and the first board stud bolt holes 604 to connect the insulation board 3 and the board stud connectors 6; specifically, two ends of the first pair of pull connectors 606 are covered with an L-shaped local heat insulation strip 11 extending along the height direction of the steel column 1, and the local heat insulation strip 11 is made of aerogel or other materials with good heat insulation performance.
After the shear stay 4 is installed and fixed, the heat insulation plate 3 is hoisted to the corresponding position, and the heat insulation plate 3 and the plate column connecting piece 6 are connected by the first pair of pull connecting pieces 606, so that the connection is convenient, quick, safe and reliable; the first pair of pull connectors 606 at the connection of the plate and the column are covered with the local heat preservation strips 11 made of aerogel, so that a heat bridge at the connection of the plate and the 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 provided at the beam-slab joint for reinforcing the connection of the thermal insulation board 3 to the whole; alternatively, either the first beam-plate connection 121 or the second beam-plate connection 122 may be employed.
In a specific application scenario, when the first beam-slab connecting device 121 is used, fig. 8, the first beam-slab connecting device 121 includes: the steel beam connecting plate 1211 and the second opposite-pull connecting piece 1212, wherein the steel beam connecting plate 1211 is welded on the lower flange of the steel beam 2, and is provided with a bolt hole for inserting the second opposite-pull connecting piece 1212; in addition, the second opposite-pull connectors 1212 are arranged at intervals, and the interval distance is recommended to be 400-600mm, so that the influence on the heat insulation effect of the beam-slab joint is reduced as much as possible while the beam-slab joint strength is ensured.
After the connection and fixation of the insulation board 3, the board column connecting piece 6 and the shear brace 4 are completed, the second opposite-pull connecting piece 1212 is inserted, so that the connection and fixation of the steel beam 2 and the insulation board 3 are realized, the connection strength of the insulation board 3 is enhanced, the structural integrity is improved, the 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 split connector 1212 is formed of GFRP or other low thermal conductivity material, which reduces the heat loss at the second split connector 1212.
In a specific application scenario, when the second beam-slab connecting device 122 is used, fig. 9, the second beam-slab connecting device 122 includes: a T-shaped connection plate 1221, a T-shaped pallet 1222, a connection screw 1223, a latch 1224, and a spring 1225; the flange of the T-shaped connecting plate 1221 is anchored on the protective layer 203, and the web of the T-shaped connecting plate 1221 is provided with bolt holes 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 clamping 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 is connected with the clamping block 1224; the connecting screw 1223 adopts a variable cross section mode, 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, the interval spacing is recommended to be 400-600mm, and the influence on the heat preservation effect of the beam-slab connecting position is reduced as far as possible while the beam-slab connecting strength is ensured.
When the heat insulation plate 3 is installed, the web plate of the T-shaped connecting plate 1221 pushes the clamping block 1224, the clamping block 1224 moves towards the spring 1225, the connecting screw rod 1223 falls into a bolt hole formed in the web plate of the T-shaped connecting plate 1221 immediately, and the second beam plate connecting device 122 is started to realize the connection between the heat insulation plate 3 and the steel beam 2; the beam plate connection is automatic, so that labor force is greatly saved, the connection quality is reliable, and the structure is higher in overall stability; and, the T-shaped connecting plate 1221 adopts GFRP or other low thermal conductivity materials, so that the heat loss possibly caused by the connection position of the beam and the plate is reduced.
In order to obtain the steel frame heat preservation system in the embodiment, the application further provides specific construction steps of the steel frame heat preservation system, namely: the method comprises the following steps:
Prefabricating steel columns, steel beams, heat insulation plates, shear supports, beam column connectors and plate column connectors in factories, and arranging bolt holes at proper positions; the heat-insulating plate is provided with a triangular plate groove, a pouring hole and a vent hole at proper positions at the joints of the beam plates;
installing steel columns at proper positions, and installing column connectors and beam column connectors;
Hoisting the steel beam to the corresponding position, and connecting the steel column and the steel beam through a beam column connecting piece;
Installing a shear stay and a heat insulation plate;
Paving local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates;
And pouring the cast-in-place heat preservation component through the pouring holes.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (5)
1. The utility model provides a steel frame heat preservation system which characterized in that:
comprising the following steps: the steel column (1), the steel beam (2), the heat-insulating plate (3) and the shear brace (4), and 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 heat-insulating plate (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 strut (4) comprises: a shear stay (401) and plate connector (402), a stay bolt hole (403) and a plate connector bolt hole (404); the shear supporting main rods (401) are arranged between two adjacent steel columns (1) in a crossing mode, and the plate connecting pieces (402) are welded at the trisection points of the shear supporting main rods (401); the shear stay main rod (401) and the plate connecting piece (402) are respectively provided with a main rod bolt hole (403) and a plate connecting piece bolt hole (404) at the end parts;
The beam column connector (5) comprises: square steel pipes (501), flange connection plates (502), web connection plates (503), a scissor brace connection plate (504) and a structural reinforcing plate (505), and beam column connection piece bolt holes (506); the square steel pipe (501) is sleeved and welded on the steel column (1), eight flange connecting plates (502) and four web connecting plates (503) are respectively welded on the outer side of the square steel pipe (501) parallel to the ground and perpendicular to the ground, eight scissor supporting connecting plates (504) and two structure reinforcing plates (505) are respectively welded on the outer side of the flange connecting plates (502) and the inner side of the square steel pipe (501) perpendicular to the ground, and the other ends of the two structure reinforcing plates (505) are welded with the steel column (1);
the panel column connection (6) comprises: hollow I-steel (601), a longitudinal connecting plate (602), a transverse connecting plate (603) and a first pair of pull connecting pieces (606), and a first plate stud bolt hole (604) and a second plate stud bolt hole (605); the hollow I-steel (601) is sleeved on the steel column (1), the longitudinal connecting plate (602) and the transverse connecting plate (603) are respectively welded on the outer sides of a web plate and a flange of the hollow I-steel (601), and the longitudinal connecting plate (602) and the transverse connecting plate (603) are provided with first plate column bolt holes (604) at proper positions of the end parts; 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 positions where the longitudinal connecting plates (602) are not arranged on the webs of the hollow I-steel (601); the first opposite-pulling connecting piece (606) penetrates through the heat insulation plate (3) and the first plate column bolt hole (604) to connect the heat insulation plate (3) and the plate column connecting piece (6); the hollow I-steel (601) is matched with a second plate column bolt hole (605) and a low-thermal-conductivity bolt to realize connection of the steel column (1) and the plate column connecting piece (6).
2. A steel frame insulation system according to claim 1, wherein:
the heat-insulating plates (3) are overlapped in pairs to form a steel structure heat-insulating wall body, and triangular plate grooves (7), pouring holes (8) and vent holes (9) are formed in the joint of the beam plates of the heat-insulating plates (3); the heat insulation board (3) is not contacted with the steel beam (2) at the joint of the beam and the board (3), and the cast-in-place heat insulation component (10) is filled at the joint of the beam and the board through the casting hole (8).
3. A steel frame insulation system according to claim 1, wherein:
The end part of the first opposite-pull connecting piece (606) is covered with an L-shaped local heat preservation strip (11) extending along the height direction of the steel column (1), and the local heat preservation strip (11) is made of aerogel or other materials with good heat preservation performance.
4. A steel frame insulation system according to claim 1, wherein:
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 board column connecting piece (6) are connected by bolts made of GFRP or other low-thermal conductivity materials.
5. A steel frame insulation system constructed using the steel frame insulation system of any one of claims 1-4, characterized in that: the method comprises the following steps:
Prefabricating steel columns, steel beams, heat insulation plates, shear supports, beam column connectors and plate column connectors in factories, and arranging bolt holes at proper positions; the heat-insulating plate is provided with a triangular plate groove, a pouring hole and a vent hole at proper positions at the joints of the beam plates;
installing steel columns at proper positions, and installing column connectors and beam column connectors;
Hoisting the steel beam to the corresponding position, and connecting the steel column and the steel beam through a beam column connecting piece;
Installing a shear stay and a heat insulation plate;
Paving local heat preservation strips at the joints of the longitudinal and transverse heat preservation plates;
And pouring the cast-in-place heat preservation component through the pouring holes.
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| CN202210972237.0A CN115341657B (en) | 2022-08-16 | 2022-08-16 | Steel frame heat preservation system and construction method |
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| CN202210972237.0A CN115341657B (en) | 2022-08-16 | 2022-08-16 | Steel frame heat preservation system and construction method |
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