CN212641853U - Low-energy-consumption steel structure building special part heat-insulation bridge node - Google Patents
Low-energy-consumption steel structure building special part heat-insulation bridge node Download PDFInfo
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- CN212641853U CN212641853U CN202020941268.6U CN202020941268U CN212641853U CN 212641853 U CN212641853 U CN 212641853U CN 202020941268 U CN202020941268 U CN 202020941268U CN 212641853 U CN212641853 U CN 212641853U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 124
- 239000010959 steel Substances 0.000 title claims abstract description 124
- 238000009413 insulation Methods 0.000 title claims abstract description 75
- 238000005265 energy consumption Methods 0.000 title claims abstract description 19
- 238000004321 preservation Methods 0.000 claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 10
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 239000004590 silicone sealant Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- 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
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Abstract
The utility model provides a low energy consumption steel construction building special parts heat preservation disconnected heat bridge node, the body of C type angle steel is fixed and by the heat preservation cladding with the front end of main joist, and the front end of main joist and the interval b of heat preservation are more than or equal to 1.5 d. The front end of the C-shaped angle steel penetrates out of the front face of the heat preservation layer and is fixed with the tail end of the secondary keel, the tail end of the C-shaped angle steel is coated by the heat preservation layer, and the distance a between the tail end of the C-shaped angle steel and the heat preservation layer is larger than or equal to 1.5 d. The front end of the secondary keel is provided with the steel member fixedly connected with the aluminum plate. The tail end of the main keel is fixed with the I-shaped steel beam through bolts. The advantages are that: the supporting structure of the original single keel is changed into the supporting structure combined by the main keel and the secondary keel, and the main keel and the secondary keel are separated by the heat insulation cushion block and are fixed by the bolts, so that the purpose of forming the heat-insulating bridge is achieved. The number of heat bridge points is reduced, the heat loss at the node of a single main keel is reduced, and finally the integral heat bridge value of the building is greatly reduced.
Description
Technical Field
The utility model relates to a heat preservation disconnected heat bridge joint field of being correlated with especially relates to a low energy consumption steel construction building special position heat preservation disconnected heat bridge joint.
Background
The design of no heat bridge is one of five main technical points of low energy consumption building.
The traditional method for building curtain wall supporting system is as follows: the aluminum plates forming the building curtain wall are connected with the building main body structure through the main keels and the secondary keels, the main keels need to penetrate through the heat insulation layer of the outer wall of the building main body, point heat bridges are generated at the positions, and energy loss is caused, and specific reference can be made to fig. 1.
However, the construction method of the main keel of the existing steel structure building curtain wall can form the point heat bridge at the position of the main keel, so that energy loss and condensation risks are caused. According to the above example, the heat loss caused by accumulation at the above plurality of thermal bridges has a non-negligible effect on the energy consumption of the building.
In conclusion, how to provide a heat bridge cut-off structure at a main keel of a curtain wall supporting structure can reduce the number of point heat bridges at the joint of the main keel and a secondary keel, and the problem to be solved urgently is formed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low energy consumption steel construction building special parts keeps warm and breaks heat bridge node for solve and lead to the high problem of overall building structure calorific loss at a plurality of thermal bridges of curtain bearing structure main joist department position formation.
In order to realize the above-mentioned purpose, the utility model provides a low energy consumption steel construction building special parts keeps warm and breaks heat bridge node, including I-steel roof beam, heat preservation, aluminum plate, still include: main joist, secondary joist, C type angle steel, steel member. The body of the C-shaped angle steel is fixed with the front end of the main keel and is coated by the heat-insulating layer, and the distance b between the front end of the main keel and the heat-insulating layer is more than or equal to 1.5 d. The front end of C type angle steel is worn out and is connected with the end fixed connection of secondary joist from the front of heat preservation, and the end of C type angle steel is by the heat preservation cladding. The front end of the secondary keel is provided with a steel member fixedly connected with the aluminum plate. The tail end of the main keel is fixed with the I-shaped steel beam through a bolt; wherein d is the bolt diameter +2 mm.
Preferably, the distance a between the tail end of the C-shaped angle steel and the heat insulation layer is more than or equal to 1.5 d.
Preferably, a heat insulation cushion block is clamped between the C-shaped angle steel and the main keel, and the three are fixed through bolts.
Preferably, as for the above technical solution, the C-shaped angle iron and the heat insulation cushion block are arranged in axial symmetry with the main keel, specifically, the arrangement order is C-shaped angle iron-heat insulation cushion block-main keel-heat insulation cushion block-C-shaped angle iron, and the above structural members are fixed by bolts.
Preferably, in the above-described embodiment, d is +2mm in bolt diameter.
Preferably, the joint between the front end of the C-shaped angle steel and the secondary joist and the joint between the secondary joist and the steel member are fixed by welding.
Preferably, the gaps between the main keels and the wall are coated with silicone sealant and covered with waterproof and vapor-proof films, and the gaps between the main keels and the heat-insulating layer are filled with foamed polyurethane.
The utility model provides a low energy consumption steel construction building special parts keeps warm and breaks heat bridge node, the body of C type angle steel is fixed with the front end of main joist and is just by the heat preservation cladding, and the front end of main joist and the interval b of heat preservation are more than or equal to 1.5 d. The front end of the C-shaped angle steel penetrates out of the front face of the heat preservation layer and is fixed with the tail end of the secondary keel, the tail end of the C-shaped angle steel is coated by the heat preservation layer, and the distance a between the tail end of the C-shaped angle steel and the heat preservation layer is larger than or equal to 1.5 d. The front end of the secondary keel is provided with the steel member fixedly connected with the aluminum plate. The tail end of the main keel is fixed with the I-shaped steel beam through bolts.
The utility model has the advantages that: the supporting structure of the original single keel is changed into the supporting structure combined by the main keel and the secondary keel, and the main keel and the secondary keel are separated by the heat insulation cushion block and are fixed by the bolts, so that the purpose of forming the heat-insulating bridge is achieved. The number of heat bridge points is reduced, the heat loss at the node of a single main keel is reduced, and finally the integral heat bridge value of the building is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that fig. 2 to 5 in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 illustrates a prior art solution described in the background of the present invention.
Fig. 2 is the embodiment of the utility model provides a low energy consumption steel construction building special position keeps warm and breaks heat bridge node's schematic structure.
Fig. 3 is a schematic structural diagram ii provided in the embodiment of the present invention.
Fig. 4 is a schematic sectional view (enlarged) taken along a direction a-a' in fig. 2.
Fig. 4a is a schematic cross-sectional view of the structure shown in fig. 2.
FIG. 5 is a flow chart of a method for manufacturing a thermal insulation bridge node at a special part of a low-energy-consumption steel structure building.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Now combine specific attached drawings to explain the technical scheme of the utility model, as shown in fig. 2, fig. 2 is the structure schematic diagram that the embodiment of the utility model provides includes: i-shaped steel beam 1, heat preservation 2, aluminum plate 3, main joist 4, secondary joist 5, C type angle steel 6, steel member 7.
Specifically, the method comprises the following steps:
the front end of the C-shaped angle steel 6 penetrates out of the front face of the heat preservation layer 2 and is fixed with the tail end of the secondary keel 5 through welding. The body of C type angle steel 6 is fixed and is wrapped by heat preservation 2 with the front end of main joist 4, and the end of C type angle steel 6 also is wrapped by heat preservation 2, and main joist 4 runs through wall body 8.
And a heat insulation cushion block is clamped between the body part of the C-shaped angle steel 6 and the main keel 4, a bolt 11 sequentially penetrates through the C-shaped angle steel 6, the heat insulation cushion block 12, the main keel 4, the other heat insulation cushion block and the other C-shaped angle steel 6, and the structural members are fixed after being connected through bolts. The C-shaped angle steel 6 and the heat insulation cushion block are arranged in an axisymmetric mode by taking the main keel 4 as an axis (as shown in figure 4), and the tail end of the main keel 4 is fixed with the I-shaped steel beam 1 through a bolt 11.
The front end of the secondary keel 5 is connected with the steel member 7 through welding, and the steel member 7 is fixedly connected with the aluminum plate 3 of the outer wall.
The distance between the tail end of the C-shaped angle steel 6 and the heat preservation layer 2 is as follows: a is more than or equal to 1.5 d. The front end of the main keel 4 and the distance between the heat preservation layers 2 are as follows: b is more than or equal to 1.5 d. d is the diameter of the bolt +2mm, wherein the diameter of the bolt 11 is related to the stress condition of the structure of the current building. As shown in fig. 3, the distance between the bolts 11 on the C-shaped angle iron 6 is 3 d.
The gap 9 between the main keel 4 and the wall 8 is coated with silicone sealant or foamed polyurethane and covered with a waterproof vapor-barrier film, and the gap 10 between the main keel and the insulating layer 2 is filled with the foamed polyurethane.
Furthermore, on the premise of not influencing the stability of the building structure, the main keel 4 can be provided with a through hole for saving raw materials, and further the through hole can be filled with heat insulation materials for improving the heat insulation performance of the building.
It is right now that the utility model also provides a low energy consumption steel construction building special parts heat preservation disconnected heat bridge node's preparation method explains, include:
description of the drawings: chi is less than 0.3064W/K, A is the sectional area; a. the1The actual sectional area of the wall body; a. the2The total area of the current wall body is obtained; u shape1The average heat transfer coefficient of the current wall is obtained when the heat transfer coefficient of the main keel is not considered.
Specifically, the method comprises the following steps: obtaining the minimum value of heat loss from the path where the cross section of the main keel is located from indoor to outdoor (as shown in fig. 4a), when the heat loss is the minimum value, the heat transfer coefficient is also the minimum value, and the heat transfer coefficient U of the path where the main keel is located is also obtainedFirst path：
Specifically, UFirst pathThe average heat transfer coefficient of the main keel and the heat-insulating layer connected with the main keel. Due to, Rsi: heat transfer resistance in internal surface [ -square meter · K/W [ - ]]；RseHeat transfer resistance [ -square meter · K/W ] on external surface]Then, R is knownsiAnd RseIs constant value due to UFirst pathR is required as the minimum valueMain keelAnd RInsulating layer bThe sum is maximum, further:
Rheat insulation layer＝b/λHeat insulation layer (3)
d0For the wall thickness, d0、λMain keel、λHeat insulation layerIs a constant value, RInsulating layer bThe thermal resistance of the heat-insulating layer at the front end of the main keel is square meter K/W]，RMain keelThermal resistance [ -square meter · K/W ] of main keel]。
R when b is minimumMain keelAnd RInsulating layer bThe sum of which is the maximum, thus obtaining the value of the spacing b, b ≧ 1.5 d.
And 102, obtaining the average heat transfer coefficient of the path of the C-shaped angle steel, and then obtaining the distance a.
The method comprises the following steps: obtaining the minimum value of heat loss from the indoor to the outdoor path of the C-shaped angle steel, when the heat loss is the minimum value, the heat transfer coefficient is also the minimum value, and the heat transfer coefficient U of the path of the C-shaped angle steel isSecond path：
USecond pathThe average heat transfer coefficient between the end of the C-shaped angle steel and the insulating layer is shown, and further the average heat transfer coefficient of each structure on the path where the C-shaped angle steel is located on the Y-axis is shown in fig. 4 a. Due to, Rsi: heat transfer resistance in internal surface [ -square meter · K/W [ - ]]；RseHeat transfer resistance [ -square meter · K/W ] on external surface]Then, R is knownsiAnd RseIs constant value due to USecond pathR is required as the minimum valueC-shaped angle steelAnd RInsulating layer aThe sum is maximum, further:
Rheat insulation layer＝a/λHeat insulation layer (6)
d1For the thickness of the insulating layer, d1、λC-shaped angle steel、RWall body、λHeat insulation layerFor a constant value, R is when a is minimalC-shaped angle steelAnd RInsulating layer aThe sum is maximum, thereby obtaining the value of the first heat preservation interval a, a is more than or equal to 1.5 d.
Further, if one of a and b is obtained, the other value of b or a can be obtained by the equation of a being the thickness of the insulating layer-b-C angle steel in the insulating layer, or b being the thickness of the insulating layer-a-C angle steel in the insulating layer.
And 103, taking the main keel as a symmetry axis, and respectively installing C-shaped angle steel and a heat insulation cushion block at two sides.
And a heat insulation cushion block is clamped between the body part of the C-shaped angle steel and the main keel, a bolt sequentially penetrates through the C-shaped angle steel, the heat insulation cushion block, the main keel, the other heat insulation cushion block and the other C-shaped angle steel, and the structural members are fixed after being connected in a penetrating manner through the bolt.
Further, the following description is made for the selection of the insulating pad of the present application: the contact area of the heat insulation cushion block, the main keel and the C-shaped angle steel is the minimum value on the premise that the structure allows, and the thickness of the heat insulation cushion block is the maximum value within the structure allowed range.
Φ＝A△T/R (7)
U＝1/R (8)
Φ＝AU△T (9)
U: the average heat transfer coefficient of the material is W/square meter K, R: the total thermal resistance of the material in the heat flow direction [ -square meter · K/W ], a: wall area.
It is known that the heat conductivity coefficient of steel is larger than that of the heat-insulating layer, and the heat conductivity coefficient is smaller than that of the material, so that the heat-insulating property is good. The thermal conductivity coefficient of the thermal insulation material for connecting the main keel and the C-shaped angle steel in the application is larger than that of the thermal insulation layer (rock wool), so the thermal insulation cushion block should select the material which meets the structural design condition and has the minimum thermal conductivity coefficient. As shown in fig. 4a, in the Y direction:
dheat insulation cushion block: thickness of insulating spacer, RHeat insulation cushion block: heat resistance of heat flow direction heat insulation cushion block [ -square meter · K/W ]]And A: wall area (constant), Δ T: the temperature difference (constant value) between the inner surface and the outer surface of the wall body.
As can be seen from the equations (10) and (11), λHeat insulation cushion blockFor the thermal conductivity of the insulating mat, at phiYWhen the value is the minimum value, the heat insulation cushion block is made of a material which meets the structural design condition and has the minimum heat conductivity coefficient, so that d can be knownHeat insulation cushion blockTaking the maximum value.
ΦY≈(AMain keelUMain keel+AC-shaped angle steelUC-shaped angle steel+AHeat insulation cushion blockUHeat insulation cushion block+A1U1)*△T (12)
ΦY: heat flow (W) through the node per unit time in the Y direction; u shapeMain keel: the heat transfer coefficient of the main keel is W/square meter.K; u shapeC-shaped angle steel: the heat transfer coefficient of the C-shaped angle steel is W/square meter K; u shapeHeat insulation cushion block: the heat transfer coefficient of the heat insulation cushion block is W/square meter.K; u shape1: when the heat transfer coefficient of the main keel is not considered, the average heat transfer coefficient of the current wall is W/square meter K; a. the1: the actual sectional area of the wall (the area of the wall left by subtracting the sectional areas of the main keel, the C-shaped angle steel and the heat insulation cushion block); a. the2: the total area of the current wall is square meter.
ΦY≈A2(AMain keelUMain keel+AC-shaped angle steelUC-shaped angle steel+AHeat insulation cushion blockUHeat insulation cushion block+A1U1)*△T/A2 (14)
χ＝ΦY/△T-A2U1 (15)
χ: the point heat bridge heat loss W/K further comprises:
χ＝Amain keelUMain keel+AC-shaped angle steelUC-shaped angle steel+AHeat insulation cushion blockUHeat insulation cushion block+A1U1-A2U1 (16)
A2＝AMain keel+AC-shaped angle steel+AHeat insulation cushion block+A1 (17)
χ＝AMain keelUMain keel+AC-shaped angle steelUC-shaped angle steel+AHeat insulation cushion blockUHeat insulation cushion block+A1U1-AMain keelU1-AC-shaped angle steelU1-AHeat insulation padBlockU1-A1U1 (18)
χ＝AMain keelUMain keel+AC-shaped angle steelUC-shaped angle steel+AHeat insulation cushion blockUHeat insulation cushion block-AMain keelU1-AC-shaped angle steelU1-AHeat insulation cushion blockU1＜0.3064W/K
χ＝AMain keel(UMain keel-U1)+AC-shaped angle steel(UC-shaped angle steel-U1)+AHeat insulation cushion block(UHeat insulation cushion block-U1) (19)
In this formula, U1Is influenced by the design of the outer wall of the project to be a constant value, A2Is a constant value, AMain keelThe sectional area of the main keel in the traditional design is a constant value. A. theHeat insulation cushion block、UMain keel、AC-shaped angle steel、UHeat insulation cushion blockIs a constant value. So that what affects χ is UMain keelAnd UC-shaped angle steel. So as to make chi take the minimum UMain keelAnd UC-shaped angle steelThe minimum value should be taken.
And 104, fixing the body part of the C-shaped angle steel, the heat insulation cushion block and the front end of the main keel by using bolts.
And 105, penetrating the front end of the C-shaped angle steel out of the front surface of the heat insulation layer to enable the front end of the main keel to be spaced from the front surface of the heat insulation layer by a distance b.
At this time, the body of the C-shaped angle steel is fixed with the front end of the main keel and is coated by the heat-insulating layer.
And step 106, fixing the front end of the C-shaped angle steel and the tail end of the secondary keel through welding.
After step 105 is executed, the end of the C-shaped angle steel is covered by the insulating layer, and the distance between the end of the C-shaped angle steel and the back of the insulating layer is a.
And step 107, fixing the tail end of the main keel and the I-shaped steel beam through bolts.
And step 108, welding the front end of the secondary keel and the steel member.
The gap between the main keel and the wall body is coated with silicone sealant or foamed polyurethane and covered with a waterproof vapor-barrier film.
And step 110, filling foamed polyurethane.
And filling foamed polyurethane in the gap between the main keel and the heat insulating layer.
In general, a is more than or equal to 1.5d, b is more than or equal to 1.5d, and d is the diameter of the bolt +2mm, wherein the diameter of the bolt is related to the structural stress condition of the current building.
The utility model provides a low energy consumption steel construction building special parts keeps warm and breaks heat bridge node, the body of C type angle steel is fixed with the front end of main joist and is just by the heat preservation cladding, and the front end of main joist and the interval b of heat preservation are more than or equal to 1.5 d. The front end of the C-shaped angle steel penetrates out of the front face of the heat preservation layer and is fixed with the tail end of the secondary keel, the tail end of the C-shaped angle steel is coated by the heat preservation layer, and the distance a between the tail end of the C-shaped angle steel and the heat preservation layer is larger than or equal to 1.5 d. The front end of the secondary keel is provided with the steel member fixedly connected with the aluminum plate. The tail end of the main keel is fixed with the I-shaped steel beam through bolts.
The utility model has the advantages that divide into two parts with the main joist in heat preservation department, separate and with the bolt fastening with thermal-insulated cushion between the two parts, reach the purpose that constitutes disconnected heat bridge. The utility model discloses a mode of the bearing capacity of increase main joist reduces the quantity of heat bridge point by a wide margin. Not only reduced the heat loss of single main joist node, still reduced the number of heat bridge point, finally reduced the holistic heat bridge value of building to minimum.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a low energy consumption steel construction building special parts heat preservation disconnected heat bridge node, including I-shaped steel roof beam, heat preservation, aluminum plate, its characterized in that, it includes: a main keel, a secondary keel, C-shaped angle steel and steel components,
the body part of the C-shaped angle steel is fixed with the front end of the main keel and is coated by the heat-insulating layer, and the distance b between the front end of the main keel and the heat-insulating layer is more than or equal to 1.5 d;
the front end of the C-shaped angle steel penetrates out of the front surface of the heat insulation layer and is fixedly connected with the tail end of the secondary keel, and the tail end of the C-shaped angle steel is coated by the heat insulation layer;
the front end of the secondary keel is provided with the steel member fixedly connected with the aluminum plate;
the tail end of the main keel and the I-shaped steel beam are fixed through bolts;
wherein d is the bolt diameter +2 mm.
2. The special part heat-insulation and heat-insulation bridge joint for the low-energy-consumption steel structure building as claimed in claim 1, wherein the distance a between the tail end of the C-shaped angle steel and the heat-insulation layer is more than or equal to 1.5 d.
3. The special part heat preservation and heat insulation bridge node of the low-energy-consumption steel structure building as claimed in claim 1, wherein a heat insulation cushion block is clamped between the C-shaped angle steel and the main keel, and the three are fixed through bolts.
4. The special part thermal insulation and heat insulation bridge joint of the low-energy-consumption steel structure building as claimed in claim 3, wherein the C-shaped angle steel and the thermal insulation cushion block are arranged in an axisymmetric manner with respect to the main keel, and specifically, the arrangement sequence is C-shaped angle steel, thermal insulation cushion block, main keel, thermal insulation cushion block and C-shaped angle steel, and the C-shaped angle steel, the thermal insulation cushion block, the main keel, the thermal insulation cushion block and the C-shaped angle steel are fixed by bolts.
5. The special part heat-insulating and heat-insulating bridge joint for the low-energy-consumption steel structure building according to claim 1, wherein the joint of the front end of the C-shaped angle steel and the secondary joist and the joint of the secondary joist and the steel member are fixed by welding.
6. The special part thermal insulation bridge node of the low-energy-consumption steel structure building as claimed in claim 1, wherein a gap between the main keel and the wall body is filled with foamed polyurethane or coated with silicone sealant and covered with a waterproof vapor-barrier film, and a gap between the main keel and the thermal insulation layer is filled with foamed polyurethane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020941268.6U CN212641853U (en) | 2020-05-28 | 2020-05-28 | Low-energy-consumption steel structure building special part heat-insulation bridge node |
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| CN202020941268.6U CN212641853U (en) | 2020-05-28 | 2020-05-28 | Low-energy-consumption steel structure building special part heat-insulation bridge node |
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