CN218492886U - Large-span steel structure roof heat-insulating bridge structure - Google Patents
Large-span steel structure roof heat-insulating bridge structure Download PDFInfo
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- CN218492886U CN218492886U CN202222613900.6U CN202222613900U CN218492886U CN 218492886 U CN218492886 U CN 218492886U CN 202222613900 U CN202222613900 U CN 202222613900U CN 218492886 U CN218492886 U CN 218492886U
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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
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- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
The utility model relates to the technical field of building, a large-span steel construction roofing heat bridge construction that breaks is provided, this structure includes: hard polyurethane heat preservation, rock wool board, vacuum insulation panels, the top of encorbelmenting the portion outside the steel construction sets up the hard polyurethane heat preservation that bilayer structure fissure of displacement pasted and form, the bottom of encorbelmenting the portion outside the steel construction sets up vacuum insulation panels, the portion of encorbelmenting is close to indoor one side and sets up the rock wool board that the bilayer structure fissure of displacement pasted and form outside the steel construction, the portion of encorbelmenting keeps away from indoor one side and sets up the rock wool board outside the steel construction, and then live the whole parcel of the portion of encorbelmenting outside the steel construction, form the heat preservation of full parcel. This application has carried out the omnidirectional and has broken the heat bridge and handle steel construction roofing exterior overhang, avoids steel construction roofing exterior overhang direct and external contact, reduces indoor heat/cold volume loss, effectively prevents steel construction roofing exterior overhang winter dewfall simultaneously, and then has effectively reduced the holistic heat bridge effect of building and building energy consumption.
Description
Technical Field
The application relates to the technical field of buildings, in particular to a large-span steel structure roof thermal bridge cut-off structure.
Background
The heat bridge is reinforced concrete or metal beams, columns, ribs and other parts in the enclosing structures such as the outer wall, the roof and the like, and has the advantages of strong heat transfer capacity, dense heat flow, low inner surface temperature, unsmooth indoor ventilation, large indoor and outdoor temperature difference at the end of autumn and the beginning of winter, frequent contact of cold and hot air, and uneven heat conduction of the wall heat-insulating layer to generate a heat bridge effect, so that indoor heat loss is easily caused, and the condensation, the mildew and even water dropping of the inner wall of a house are required to be treated in the building engineering.
Although the conventional public building has lower requirements on the heat bridge breaking treatment, the heat bridge breaking is an important index parameter for the building envelope with near zero energy consumption, and the requirement in the technical standard for building with near zero energy consumption GB/T51350-2019 requires that the special treatment must be carried out on the heat bridge of the building envelope in the energy-saving design of the building with near zero energy consumption, and the influence of the heat bridge in the building with near zero energy consumption accounts for a ratio far exceeding that of the common energy-saving building, so that the heat bridge treatment is a key factor for realizing the building target with near zero energy consumption, particularly the building with near zero energy consumption adopting a large-span steel structure roof in a severe cold and cold climate area with large indoor and outdoor temperature difference, and the outer part of the building is a main part for generating the heat bridge. However, no effective heat bridge breaking treatment method exists for the overhanging part of the large-span steel structure roof, so that the building heat bridge effect is remarkable, and the building energy consumption is high.
SUMMERY OF THE UTILITY MODEL
The application provides a large-span steel structure roofing bridge cut-off structure for solve present exterior choosing to the large-span steel structure roofing and do not have effectual bridge cut-off processing method, lead to this type of building heat bridge effect to be showing, the higher problem of building energy consumption.
The application provides a large-span steel construction roofing heat bridge construction that breaks, include: the insulation board comprises a concrete layer, a first hard polyurethane insulation layer, a second hard polyurethane insulation layer, a third hard polyurethane insulation layer, a first rock wool board, a second rock wool board, a third rock wool board, a fourth rock wool board, a fifth rock wool board, a sixth rock wool board, a ceiling and a vacuum insulation board;
the cantilever part of the steel structure comprises first horizontal steel, second horizontal steel, vertical steel, a first steel beam and a second steel beam, wherein the horizontal position of the first horizontal steel is higher than that of the second horizontal steel, one end, far away from the indoor, of the first horizontal steel is fixedly connected with the first steel beam, one end, far away from the indoor, of the second horizontal steel is fixedly connected with the second steel beam, and the vertical steel is fixedly connected between the first steel beam and the second steel beam;
the concrete layer comprises a horizontal part and a vertical part, the horizontal part is arranged at the tops of the first horizontal steel and the first steel beam, and the vertical part is fixedly connected with one end of the horizontal part far away from the indoor space;
the first hard polyurethane heat insulation layer is arranged on the top of the horizontal part, the second hard polyurethane heat insulation layer is arranged on one side, close to the horizontal part, of the vertical part, the third hard polyurethane heat insulation layer is arranged on the top of the vertical part, and the first hard polyurethane heat insulation layer, the second hard polyurethane heat insulation layer and the third hard polyurethane heat insulation layer are all formed by staggered joint and adhesion of a double-layer structure;
the first hard polyurethane heat-insulating layer is fixedly connected with the second hard polyurethane heat-insulating layer, and the second hard polyurethane heat-insulating layer is fixedly connected with the third hard polyurethane heat-insulating layer;
the suspended ceiling is arranged at the bottom of the second horizontal steel, and the vacuum insulation panel is arranged at the top of the suspended ceiling;
the first rock wool board is arranged on one side, far away from the horizontal part, of the vertical part, the second rock wool board is arranged at the bottom of the connecting part of the vertical part and the horizontal part, the third rock wool board is arranged on one side, far away from the room, of the first steel beam, the second steel beam and the vertical steel, the fourth rock wool board is arranged at the bottom of the second steel beam, and the fifth rock wool board is arranged on one side, near the room, of the second steel beam;
the third rigid polyurethane heat-insulation layer is fixedly connected with the first rock wool board, the first rock wool board is fixedly connected with the second rock wool board, the second rock wool board is fixedly connected with the third rock wool board, the third rock wool board is fixedly connected with the fourth rock wool board, the fourth rock wool board is fixedly connected with the fifth rock wool board, and the fifth rock wool board is fixedly connected with the bottom of the suspended ceiling;
the sixth rock wool board set up first horizontal steel with between the second horizontal steel, the sixth rock wool board sets up in the airtight district outside, just the sixth rock wool board is formed for bilayer structure fissure of displacement paste.
In one embodiment, further comprising: a first waterproof breathable layer;
the first waterproof breathable layer is arranged on the top of the first rigid polyurethane heat-insulating layer, one side of the second rigid polyurethane heat-insulating layer close to the indoor space and the top of the third rigid polyurethane heat-insulating layer.
In one embodiment, further comprising: a first waterproof and air-barrier layer;
the first waterproof air-proof layer is arranged between the first rigid polyurethane heat-insulating layer and the horizontal part, between the second rigid polyurethane heat-insulating layer and the vertical part and between the third rigid polyurethane heat-insulating layer and the vertical part.
In one embodiment, further comprising: partition wall and seventh rock wool board;
the partition wall is arranged between the outer side of the airtight area and the sixth rock wool board, and the top of the partition wall is fixedly connected with the bottom of the horizontal part;
the seventh rock wool board sets up the bottom of horizontal part, just the seventh rock wool board with the sixth rock wool board is in the partition wall with the connecting portion of horizontal part are connected.
In one embodiment, further comprising: the curtain wall, the fixing sleeve and the third steel beam;
the curtain wall is arranged on one side, close to the room, of the sixth rock wool board, and the fixed sleeve is sleeved on the top of the curtain wall;
the top of the third steel beam is fixedly connected with the bottom of the partition wall, and the bottom of the third steel beam is fixedly connected with the top of the fixing sleeve.
In one embodiment, further comprising: a first insulating spacer;
the first heat insulation gasket is arranged between the fixed sleeve and the sixth rock wool plate, and the top of the first heat insulation gasket is fixedly connected with the bottom of the third steel beam.
In one embodiment, further comprising: a second waterproof breathable layer, a third waterproof breathable layer and a fourth waterproof breathable layer;
the second waterproof breathable layer is arranged between the fixed sleeve and the first heat-insulating gasket, the third waterproof breathable layer is arranged at the bottom of the fixed sleeve close to the first heat-insulating gasket, and the fourth waterproof breathable layer is arranged at one side of the curtain wall close to the first heat-insulating gasket;
the second waterproof breathable layer is in seamless connection with the third waterproof breathable layer, and the third waterproof breathable layer is in seamless connection with the fourth waterproof breathable layer.
In one embodiment, further comprising: the second waterproof air-barrier layer, the third waterproof air-barrier layer and the fourth waterproof air-barrier layer;
the second waterproof air-isolating layer is arranged on one side, close to the indoor space, of the fixed sleeve, the third waterproof air-isolating layer is arranged on the bottom, close to the indoor space, of the fixed sleeve, and the fourth waterproof air-isolating layer is arranged on one side, close to the indoor space, of the curtain wall;
the waterproof gas barrier of second with third prevention water gas barrier seamless connection, third prevention water gas barrier with fourth waterproof gas barrier seamless connection.
In one embodiment, further comprising: a second insulating spacer;
the second heat insulation gasket is arranged in the seventh rock wool board.
In one embodiment, the first waterproof breathable layer is a two-layer structure.
One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:
the application provides a large-span steel construction roofing heat bridge construction that breaks, including rigid polyurethane heat preservation, rock wool board and vacuum insulation panels, the top of choosing portion outside the steel construction sets up the rigid polyurethane heat preservation that bilayer structure fissure of displacement pasted and form, the bottom of choosing portion outside the steel construction sets up vacuum insulation panels, it sets up the rock wool board that bilayer structure fissure of displacement pasted and form to be close to indoor one side near choosing portion outside the steel construction, it sets up the rock wool board to keep away from indoor one side in the choosing portion outside the steel construction, and then live the whole parcel of choosing portion outside the steel construction, form the heat preservation of full parcel. This application has carried out the omnidirectional and has broken the heat bridge and handle steel construction roofing exterior overhang, avoids steel construction roofing exterior overhang direct and external contact, reduces indoor heat/cold volume loss, effectively prevents steel construction roofing exterior overhang winter dewfall simultaneously, and then has effectively reduced the holistic heat bridge effect of building and building energy consumption.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a large-span steel structure roof heat-insulation bridge structure provided in an embodiment of the present application;
fig. 2 is an enlarged structural schematic view of a part a of a large-span steel structure roof heat-insulation bridge structure provided in the embodiment of the present application;
fig. 3 is an enlarged structure schematic diagram of a part B of a large-span steel structure roof thermal-break bridge structure provided in the embodiment of the present application.
Reference numerals:
1-a first rigid polyurethane insulation layer; 2-a second hard polyurethane heat-insulating layer; 3-a third rigid polyurethane heat-insulating layer; 4-first rock wool panel; 5-second rock wool board; 6-third rock wool board; 7-fourth rock wool panel; 8-fifth rock wool panel; 9-sixth rock wool panel; 10-suspended ceiling; 11-vacuum insulation panels; 12-a first level of steel; 13-second level steel; 14-vertical steel; 15-a first steel beam; 16-a second steel beam; 17-a horizontal portion; 18-a vertical portion; 19-a first waterproof breathable layer; 20-partition walls; 21-seventh rock wool panel; 22-curtain wall; 23-fixing the sleeve; 24-a third steel beam; 25-a first insulating gasket; 26-a second waterproof breathable layer; 27-a third water-vapor-permeable layer; 28-a fourth water-resistant breathable layer; 29-a second waterproof and air-barrier layer; 30-a third water-proof and gas-proof layer; 31-a fourth waterproof and gas-barrier layer; 32-a second insulating gasket; 33-fire-proof sealant.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Fig. 1 is a schematic view of a large-span steel structure roof heat-insulation bridge structure provided in an embodiment of the present application;
fig. 2 is an enlarged structural schematic view of a part a of a large-span steel structure roof heat-insulation bridge structure provided in the embodiment of the present application;
fig. 3 is an enlarged structural schematic view of a part B of a large-span steel structure roof heat-insulation bridge structure provided by the embodiment of the application.
Referring to fig. 1 to 3, the application provides a large-span steel structure roof heat-insulation bridge structure, which comprises a concrete layer, a first hard polyurethane heat-insulation layer 1, a second hard polyurethane heat-insulation layer 2, a third hard polyurethane heat-insulation layer 3, a first rock wool plate 4, a second rock wool plate 5, a third rock wool plate 6, a fourth rock wool plate 7, a fifth rock wool plate 8, a sixth rock wool plate 9, a ceiling 10 and a vacuum heat-insulation plate 11;
the overhanging part of the steel structure comprises a first horizontal steel 12, a second horizontal steel 13, a vertical steel 14, a first steel beam 15 and a second steel beam 16, wherein the horizontal position of the first horizontal steel 12 is higher than that of the second horizontal steel 13, one end, far away from the indoor, of the first horizontal steel 12 is fixedly connected with the first steel beam 15, one end, far away from the indoor, of the second horizontal steel 13 is fixedly connected with the second steel beam 16, and the vertical steel 14 is fixedly connected between the first steel beam 15 and the second steel beam 16;
the concrete layer comprises a horizontal part 17 and a vertical part 18, the horizontal part 17 is arranged on the tops of the first horizontal steel 12 and the first steel beam 15, and the vertical part 18 is fixedly connected with one end of the horizontal part 17 far away from the indoor space;
the first hard polyurethane heat-insulating layer 1 is arranged on the top of the horizontal part 17, the second hard polyurethane heat-insulating layer 2 is arranged on one side of the vertical part 18 close to the horizontal part 17, the third hard polyurethane heat-insulating layer 3 is arranged on the top of the vertical part 18, and the first hard polyurethane heat-insulating layer 1, the second hard polyurethane heat-insulating layer 2 and the third hard polyurethane heat-insulating layer 3 are all formed by double-layer structure staggered joint adhesion;
the first hard polyurethane heat-insulating layer 1 is fixedly connected with the second hard polyurethane heat-insulating layer 2, and the second hard polyurethane heat-insulating layer 2 is fixedly connected with the third hard polyurethane heat-insulating layer 3;
the suspended ceiling 10 is arranged at the bottom of the second horizontal steel 13, and the vacuum insulation panel 11 is arranged at the top of the suspended ceiling 10;
the first rock wool board 4 is arranged on one side, far away from the horizontal part 17, of the vertical part 18, the second rock wool board 5 is arranged at the bottom of the connecting part of the vertical part 18 and the horizontal part 17, the third rock wool board 6 is arranged on one side, far away from the room, of the first steel beam 15, the second steel beam 16 and the vertical steel 14, the fourth rock wool board 7 is arranged at the bottom of the second steel beam 16, and the fifth rock wool board 8 is arranged on one side, near the room, of the second steel beam 16;
the third hard polyurethane heat-insulating layer 3 is fixedly connected with the first rock wool board 4, the first rock wool board 4 is fixedly connected with the second rock wool board 5, the second rock wool board 5 is fixedly connected with the third rock wool board 6, the third rock wool board 6 is fixedly connected with the fourth rock wool board 7, the fourth rock wool board 7 is fixedly connected with the fifth rock wool board 8, and the fifth rock wool board 8 is fixedly connected with the bottom of the suspended ceiling 10;
the sixth rock wool board 9 is arranged between the first horizontal steel 12 and the second horizontal steel 13, the sixth rock wool board 9 is arranged outside the airtight area, and the sixth rock wool board 9 is formed by double-layer structure staggered joint pasting.
The overhanging part of the steel structure is the part of the steel structure roof extending out of the room, and the airtight area is the area of the steel structure roof on the top of the room.
First rigid polyurethane heat preservation 1, second rigid polyurethane heat preservation 2 and third rigid polyurethane heat preservation 3 adopt bilayer structure, compare single layer construction's thermal insulation performance better, and bilayer structure stagger joint is pasted and to be made between two-layer in the rigid polyurethane heat preservation more firm on the one hand, and on the other hand can prevent that the heat from scattering and disappearing in every layer seam department, improves thermal insulation performance, reduces the heat bridge effect.
The thickness of each layer of the rigid polyurethane insulation layer can be set according to the actual situation, and is not limited herein, but in this embodiment, the thickness of each layer of the rigid polyurethane insulation layer can be 60 mm, that is, the thickness of each of the first rigid polyurethane insulation layer 1, the second rigid polyurethane insulation layer 2 and the third rigid polyurethane insulation layer 3 is 120 mm.
The vacuum heat insulation plate 11 has light load and high heat insulation performance, can prevent indoor heat from dissipating to the outdoor through the suspended ceiling 10, and reduces heat bridge effect and building energy consumption.
The thickness of the vacuum insulation panel 11 may be set according to actual conditions, but is not limited thereto, and in the present embodiment, the thickness of the vacuum insulation panel 11 may be 30 mm.
Because the steel structure roof penetrates through the airtight area, the air tightness of the airtight area is affected, so that the heat loss at the penetrating position is serious, the heat bridge effect is obvious, especially for a near-zero energy consumption building with a large system coefficient (the area of the steel structure roof occupies a large area), the energy consumption caused by the heat loss and the heat bridge effect cannot be ignored, and therefore, the sixth rock wool boards 9 are arranged on the outer side of the airtight area to prevent the heat loss.
Sixth rock wool board 9 adopts bilayer structure, and it is better to compare monolayer structure's thermal insulation performance, and bilayer structure fissure of displacement pastes and to paste more firmly between can making the two-layer in sixth rock wool board 9 on the one hand, and on the other hand can prevent that the heat from scattering and disappearing in every layer seam department, improves thermal insulation performance, reduces the heat bridge effect.
It should be noted that the thickness of each layer of the sixth rock wool panel 9 may be set according to actual conditions, and is not limited herein, and in this embodiment, the thickness of each layer of the sixth rock wool panel 9 may be 110 mm, that is, the thickness of the sixth rock wool panel 9 is 220 mm.
The large-span steel construction roofing heat bridge construction that breaks that this embodiment provided, including rigid polyurethane heat preservation, rock wool board, vacuum insulation panels, the top of choosing portion outside the steel construction sets up the rigid polyurethane heat preservation that bilayer structure fissure of displacement pasted and form, the bottom of choosing portion outside the steel construction sets up vacuum insulation panels, it sets up the rock wool board that bilayer structure fissure of displacement pasted and form to be close to indoor one side near choosing portion outside the steel construction, it sets up the rock wool board to keep away from indoor one side in choosing portion outside the steel construction, and then live the whole parcel of choosing portion outside the steel construction, form the heat preservation of full parcel. This embodiment has carried out the omnidirectional and has broken the heat bridge and handle steel construction roofing exterior overhang, avoids steel construction roofing exterior overhang direct and external contact, reduces indoor heat/cold volume loss, effectively prevents steel construction roofing exterior overhang winter dewfall simultaneously, and then has effectively reduced the holistic heat bridge effect of building and building energy consumption.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roof thermal break bridge structure further includes: a first waterproof breathable layer 19;
the first waterproof breathable layer 19 is arranged on the top of the first rigid polyurethane heat-insulating layer 1, one side of the second rigid polyurethane heat-insulating layer 2 close to the indoor space and the top of the third rigid polyurethane heat-insulating layer 3.
In this embodiment, through setting up first waterproof ventilative layer 19, can make the steam in the rigid polyurethane heat preservation discharge to outdoor to prevent that outdoor moisture from getting into the rigid polyurethane heat preservation, guaranteed the abundant drying of rigid polyurethane heat preservation, improved the heat preservation effect of rigid polyurethane heat preservation.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roof thermal break bridge structure further includes: a first waterproof and air-barrier layer;
the first waterproof air-proof layer is arranged between the first rigid polyurethane heat-insulating layer 1 and the horizontal part 17, between the second rigid polyurethane heat-insulating layer 2 and the vertical part 18 and between the third rigid polyurethane heat-insulating layer 3 and the vertical part 18.
In this embodiment, through setting up first waterproof air barrier, can prevent that the moisture on concrete layer from getting into rigid polyurethane heat preservation, guarantee rigid polyurethane heat preservation's abundant drying, improved rigid polyurethane heat preservation's heat preservation effect.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roofing thermal break bridge structure further includes: a partition wall 20 and a seventh rock wool panel 21;
the partition wall 20 is arranged between the outer side of the airtight area and the sixth rock wool board 9, and the top of the partition wall 20 is fixedly connected with the bottom of the horizontal part 17;
the seventh rock wool board 21 is provided at the bottom of the horizontal portion 17, and the seventh rock wool board 21 and the sixth rock wool board 9 are connected at the connecting portion of the partition wall 20 and the horizontal portion 17.
Since the joint exists between the partition wall 20 and the horizontal portion 17 and is close to the airtight area, it is a key part of heat loss, and the seventh rock wool panel 21 and the sixth rock wool panel 9 are connected to the joint, thereby achieving a good sealing and heat-insulating effect for the joint.
The thickness of the seventh rock wool panel 21 may be set according to actual conditions, but is not limited thereto, and in this embodiment, the thickness of the seventh rock wool panel 21 may be 110 mm. Meanwhile, in order to better wrap the connecting portion, the seventh rock wool board 21 needs to have a certain length, that is, a certain length extension can be performed at the bottom of the horizontal portion 17, the length can be set according to practical situations, and is not limited here, and in this embodiment, the length of the seventh rock wool board 21 can be 1000 mm.
In addition, the material and thickness of the partition wall 20 are not limited herein, and in this embodiment, the partition wall 20 may be a cement pressure plate partition wall, and the thickness may be 10 mm.
In this embodiment, connect in the connecting portion of partition wall and concrete layer horizontal part bottom through six rock wool boards and seventh rock wool board, can carry out better closed heat preservation to this connecting portion to reduce the heat bridge effect.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roof thermal break bridge structure further includes: curtain wall 22, fixing sleeve 23 and third steel beam 24;
the curtain wall 22 is arranged on one side of the sixth rock wool board 9 close to the indoor space, and the fixed sleeve 23 is sleeved on the top of the curtain wall 22;
the top of the third steel beam 24 is fixedly connected with the bottom of the partition wall 20, and the bottom of the third steel beam 24 is fixedly connected with the top of the fixing sleeve 23.
The material of the curtain wall 22 may be adjusted according to actual needs, and is not limited herein, and in this embodiment, the curtain wall 22 may be an all-glass curtain wall.
It should be noted that the third steel beam 24 in this embodiment is already fixedly connected to a specific fixed wall, and the fixed sleeve 23 is a member for hoisting the curtain wall 22.
The third girder steel in this embodiment can be for the installation of partition wall and the hoist and mount bearing of curtain for partition wall and curtain are more firm.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roof thermal break bridge structure further includes: a first insulating spacer 25;
the first heat insulation gasket 25 is arranged between the fixing sleeve 23 and the sixth rock wool plate 9, and the top of the first heat insulation gasket 25 is fixedly connected with the bottom of the third steel beam 24.
The material and thickness of the first heat insulating spacer 25 can be adjusted according to actual needs, and are not limited herein, and in this embodiment, the thickness of the first heat insulating spacer 25 may be 20 mm.
This embodiment sets up first thermal-insulated gasket between fixed cover and sixth rock wool board, can further block indoor heat to outdoor losing, reduces the heat bridge effect.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roofing thermal break bridge structure further includes: a second water-and gas-permeable layer 26, a third water-and gas-permeable layer 27, and a fourth water-and gas-permeable layer 28;
the second waterproof and breathable layer 26 is arranged between the fixed sleeve 23 and the first heat-insulating gasket 25, the third waterproof and breathable layer 27 is arranged at the bottom of the fixed sleeve 23 close to the first heat-insulating gasket 25, and the fourth waterproof and breathable layer 28 is arranged at one side of the curtain wall 22 close to the first heat-insulating gasket 25;
second waterproof ventilative layer 26 and the ventilative layer 27 seamless connection of third prevention water, the ventilative layer 27 and the ventilative layer 28 seamless connection of fourth prevention water of third prevention water.
It should be noted that the second waterproof breathable layer 26, the third waterproof breathable layer 27, and the fourth waterproof breathable layer 28 are the same waterproof breathable layer, and are only bent to form three different portions according to the installation position.
This embodiment keeps away from the connecting portion of indoor one side at fixed cover and curtain and sets up waterproof ventilative layer, can avoid external moisture to get into the curtain through this connecting portion on the one hand, and on the other hand can be through the steam in this connecting portion discharge curtain, keeps the drying of curtain, prevents the dewfall to reduce the heat bridge effect.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roofing thermal break bridge structure further includes: a second waterproof gas barrier 29, a third waterproof gas barrier 30 and a fourth waterproof gas barrier 31;
the second waterproof air-barrier 29 is arranged on one side of the fixed sleeve 23 close to the indoor space, the third waterproof air-barrier 30 is arranged on the bottom of the fixed sleeve 23 close to the indoor space, and the fourth waterproof air-barrier 31 is arranged on one side of the curtain wall 22 close to the indoor space;
the second waterproof air-barrier layer 29 is seamlessly connected with the third waterproof air-barrier layer 30, and the third waterproof air-barrier layer 30 is seamlessly connected with the fourth waterproof air-barrier layer 31.
It should be noted that the second waterproof air-barrier 29, the third waterproof air-barrier 30 and the fourth waterproof air-barrier 31 are the same layer, and are only bent to form three different portions according to the installation position.
This embodiment sets up waterproof gas barrier layer at fixed cover and curtain near the connecting portion of indoor one side for indoor moisture can't get into the curtain through this connecting portion, thereby guarantees the drying of curtain, prevents the dewfall, thereby reduces the heat bridge effect.
Referring to fig. 1 to 3, in one embodiment, the large-span steel structure roof thermal break bridge structure further includes: a second insulating spacer 32;
the second heat insulating spacer 32 is provided in the seventh rock wool panel 21.
The material, thickness and number of the second heat insulating spacers 32 may be adjusted according to actual needs, and are not limited herein, in this embodiment, the number of the second heat insulating spacers 32 may be two, and the thickness of each second heat insulating spacer 32 may be 20 mm.
The second heat insulating gasket is arranged in the seventh rock wool board, so that indoor heat can be further prevented from being dissipated outdoors, and the heat bridge effect is reduced.
Referring to fig. 1 to 3, in one embodiment, the first waterproof and breathable layer 19 of the large-span steel-structured roof thermal bridge structure may have a double-layer structure.
This embodiment sets up to bilayer structure through setting up first waterproof ventilative layer, can further promote the steam in the rigid polyurethane heat preservation and arrange to outdoor to further prevent that outdoor moisture from getting into rigid polyurethane heat preservation, better assurance rigid polyurethane heat preservation's abundant drying has improved rigid polyurethane heat preservation's heat preservation effect.
Referring to fig. 1-3, in one embodiment, a fire sealant 33 may be disposed between the third water-vapor-permeable layer 27 and the first insulating gasket 25, and in the gap where the vacuum insulation panel 11 and the ceiling 10 are connected to the curtain wall 22.
This embodiment can play the sealed effect of fire prevention at setting up the position through setting up the sealed glue of fire prevention.
Referring to fig. 1 to 3, in one embodiment, the seventh rock wool panel 21 may be fixedly attached to the bottom of the horizontal portion 17 of the concrete layer by a heat-breaking bridge anchor bolt.
This embodiment is through adopting disconnected heat bridge crab-bolt with seventh rock wool board fixed connection in concrete layer's horizontal part bottom, can prevent that indoor heat from scattering and disappearing through the fixed connection spare of seventh rock wool board with the horizontal part, further reduces the heat bridge effect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. The utility model provides a large-span steel construction roofing broken heat bridge structure which characterized in that includes: the insulation board comprises a concrete layer, a first hard polyurethane insulation layer, a second hard polyurethane insulation layer, a third hard polyurethane insulation layer, a first rock wool board, a second rock wool board, a third rock wool board, a fourth rock wool board, a fifth rock wool board, a sixth rock wool board, a ceiling and a vacuum insulation board;
the cantilever part of the steel structure comprises first horizontal steel, second horizontal steel, vertical steel, a first steel beam and a second steel beam, wherein the horizontal position of the first horizontal steel is higher than that of the second horizontal steel, one end, far away from the indoor, of the first horizontal steel is fixedly connected with the first steel beam, one end, far away from the indoor, of the second horizontal steel is fixedly connected with the second steel beam, and the vertical steel is fixedly connected between the first steel beam and the second steel beam;
the concrete layer comprises a horizontal part and a vertical part, the horizontal part is arranged at the tops of the first horizontal steel and the first steel beam, and the vertical part is fixedly connected with one end of the horizontal part far away from the indoor space;
the first hard polyurethane heat insulation layer is arranged on the top of the horizontal part, the second hard polyurethane heat insulation layer is arranged on one side, close to the horizontal part, of the vertical part, the third hard polyurethane heat insulation layer is arranged on the top of the vertical part, and the first hard polyurethane heat insulation layer, the second hard polyurethane heat insulation layer and the third hard polyurethane heat insulation layer are all formed by staggered joint and adhesion of a double-layer structure;
the first hard polyurethane heat-insulating layer is fixedly connected with the second hard polyurethane heat-insulating layer, and the second hard polyurethane heat-insulating layer is fixedly connected with the third hard polyurethane heat-insulating layer;
the suspended ceiling is arranged at the bottom of the second horizontal steel, and the vacuum heat insulation plate is arranged at the top of the suspended ceiling;
the first rock wool board is arranged on one side, far away from the horizontal part, of the vertical part, the second rock wool board is arranged at the bottom of the connecting part of the vertical part and the horizontal part, the third rock wool board is arranged on one side, far away from the room, of the first steel beam, the second steel beam and the vertical steel, the fourth rock wool board is arranged at the bottom of the second steel beam, and the fifth rock wool board is arranged on one side, near the room, of the second steel beam;
the third rigid polyurethane heat-insulation layer is fixedly connected with the first rock wool board, the first rock wool board is fixedly connected with the second rock wool board, the second rock wool board is fixedly connected with the third rock wool board, the third rock wool board is fixedly connected with the fourth rock wool board, the fourth rock wool board is fixedly connected with the fifth rock wool board, and the fifth rock wool board is fixedly connected with the bottom of the suspended ceiling;
the sixth rock wool board sets up first horizontal steel with between the second horizontal steel, the sixth rock wool board sets up in the airtight area outside, just the sixth rock wool board is formed for bilayer structure stagger joint paste.
2. The large-span steel structure roof thermal bridge cut-off structure of claim 1, further comprising: a first waterproof breathable layer;
the first waterproof breathable layer is arranged on the top of the first rigid polyurethane heat-insulating layer, one side of the second rigid polyurethane heat-insulating layer close to the indoor space and the top of the third rigid polyurethane heat-insulating layer.
3. The large-span steel structure roof thermal bridge cut-off structure of claim 1, further comprising: a first waterproof and air-barrier layer;
the first waterproof air-proof layer is arranged between the first rigid polyurethane heat-insulating layer and the horizontal part, between the second rigid polyurethane heat-insulating layer and the vertical part and between the third rigid polyurethane heat-insulating layer and the vertical part.
4. The large-span steel structure roof thermal bridge cut-off structure of claim 1, further comprising: partition wall and seventh rock wool board;
the partition wall is arranged between the outer side of the airtight area and the sixth rock wool board, and the top of the partition wall is fixedly connected with the bottom of the horizontal part;
the seventh rock wool board sets up the bottom of horizontal part, just the seventh rock wool board with the sixth rock wool board is in the partition wall with the connecting portion of horizontal part are connected.
5. The large-span steel structure roof thermal bridge cut-off structure of claim 4, further comprising: the curtain wall, the fixing sleeve and the third steel beam;
the curtain wall is arranged on one side, close to the room, of the sixth rock wool board, and the fixed sleeve is sleeved on the top of the curtain wall;
the top of the third steel beam is fixedly connected with the bottom of the partition wall, and the bottom of the third steel beam is fixedly connected with the top of the fixing sleeve.
6. The large-span steel structure roof thermal bridge cut-off structure of claim 5, further comprising: a first insulating spacer;
the first heat insulation gasket is arranged between the fixed sleeve and the sixth rock wool plate, and the top of the first heat insulation gasket is fixedly connected with the bottom of the third steel beam.
7. The large-span steel structure roofing thermal break bridge structure of claim 6, further comprising: a second waterproof breathable layer, a third waterproof breathable layer and a fourth waterproof breathable layer;
the second waterproof breathable layer is arranged between the fixed sleeve and the first heat-insulating gasket, the third waterproof breathable layer is arranged at the bottom of the fixed sleeve close to the first heat-insulating gasket, and the fourth waterproof breathable layer is arranged at one side of the curtain wall close to the first heat-insulating gasket;
the second waterproof breathable layer is in seamless connection with the third waterproof breathable layer, and the third waterproof breathable layer is in seamless connection with the fourth waterproof breathable layer.
8. The large-span steel structure roof thermal bridge cutoff structure according to claim 6, further comprising: the second waterproof air-barrier layer, the third waterproof air-barrier layer and the fourth waterproof air-barrier layer;
the second waterproof air-isolating layer is arranged on one side, close to the indoor space, of the fixed sleeve, the third waterproof air-isolating layer is arranged on the bottom, close to the indoor space, of the fixed sleeve, and the fourth waterproof air-isolating layer is arranged on one side, close to the indoor space, of the curtain wall;
the second waterproof gas barrier layer with third water gas barrier layer seamless connection, third water gas barrier layer with fourth waterproof gas barrier layer seamless connection.
9. The large-span steel structure roof thermal bridge cut-off structure of claim 4, further comprising: a second insulating spacer;
the second heat insulation gasket is arranged in the seventh rock wool board.
10. The large-span steel structure roof thermal bridge cut-off structure of claim 2, wherein:
the first waterproof breathable layer is of a double-layer structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222613900.6U CN218492886U (en) | 2022-09-30 | 2022-09-30 | Large-span steel structure roof heat-insulating bridge structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222613900.6U CN218492886U (en) | 2022-09-30 | 2022-09-30 | Large-span steel structure roof heat-insulating bridge structure |
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