CN106968362B - Steel wire net rack composite heat-insulating sandwich wallboard node and construction method thereof - Google Patents
Steel wire net rack composite heat-insulating sandwich wallboard node and construction method thereof Download PDFInfo
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- CN106968362B CN106968362B CN201710333947.8A CN201710333947A CN106968362B CN 106968362 B CN106968362 B CN 106968362B CN 201710333947 A CN201710333947 A CN 201710333947A CN 106968362 B CN106968362 B CN 106968362B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 187
- 239000010959 steel Substances 0.000 title claims abstract description 187
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 238000004321 preservation Methods 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000010622 cold drawing Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 59
- 238000005507 spraying Methods 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005536 corrosion prevention Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 53
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- 239000002344 surface layer Substances 0.000 description 1
Images
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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Abstract
The invention relates to a steel wire rack composite heat-insulating sandwich wallboard node and a construction method thereof, which belong to the technical field of building energy conservation and heat preservation, and are of a T-shaped structure, an L-shaped structure or a Z-shaped structure formed by connecting steel wire rack composite heat-insulating sandwich wallboards with each other, wherein the wallboard connecting part is a column body, and the steel wire rack composite heat-insulating sandwich wallboard comprises a steel wire rack formed by two steel wire meshes which are parallel with each other and a plurality of cold-drawing oblique-inserted steel wires for connecting the two steel wire meshes, a three-layer heat-insulating board clamped between the two steel wire meshes and concrete layers arranged on two sides of the heat-insulating board; the steel wire mesh is formed by welding steel wires in a crisscross manner; the three-layer heat-insulating plate comprises a thicker main heat-insulating plate in the middle, the two sides of the main heat-insulating plate are respectively provided with thinner heat-insulating plates at intervals, the heat-insulating plates on the two sides are distributed in a 'joint line' mode on the two sides of the main heat-insulating plate in the middle, and the heat-insulating plate on any side can cover the joint line position of the main heat-insulating plate in the middle.
Description
Technical Field
The invention relates to a wall, in particular to a steel wire mesh frame composite heat-insulating sandwich wallboard node and a construction method thereof, and belongs to the technical field of energy conservation and heat preservation of buildings.
Background
The composite heat insulating sandwich wall is formed by placing heat insulating materials (such as polyphenyl, rock wool, glass wool and the like) between two wall bodies, and arranging drawknot members between the inner leaf wall and the outer leaf wall. The wall body is generally composed of an inner leaf wall, a heat preservation layer and an outer leaf wall, and the heat preservation and heat insulation material is arranged in the middle of the outer wall body, so that the protection effect of the wall body material is exerted, the reinforcing surface layers of the heat preservation layer and the material layer are omitted, and the manufacturing cost is relatively reduced. At present, a drawknot piece in the middle of the inner wall and the outer wall is connected by adopting an oblique inserting wire or a drawrivet piece connecting piece; the panels are also divided into cast-in-place and prefabricated. Along with the national promotion of building industrialization and the requirement on energy conservation and heat preservation, the composite heat preservation wall body with the integrated structure and heat preservation has wide application prospect.
At present, the domestic composite heat-insulating wall mainly takes a filling wall as a main material, has limited bearing capacity, and is limited in application in a bearing wall, so that research and development of the composite heat-insulating wall can meet the energy-saving heat-insulating requirement and also can meet the bearing requirement of the bearing wall. The composite heat insulating sandwich wall with steel wire rack as skeleton is produced through welding cold drawn low carbon galvanized steel wire into one three-dimensional truss with heat insulating board in certain thickness to form one rigid integral heat insulating core board, and spraying cement mortar or fine stone concrete to two sides of the core board to form the integral board. The wall body is light in dead weight and high in bearing capacity, not only can be applied to a filling wall in a frame structure, but also can be used as a shear wall in a shear wall structure. The technology is mature abroad, and a structural system mainly based on the technology is formed.
The ZL 20090142762. X discloses a steel wire mesh sandwich board, which comprises two steel wire meshes parallel to each other, a core board clamped between the two steel wire meshes, and a plurality of oblique inserting wires used for connecting the two steel wire meshes, wherein the steel wire meshes are formed by welding a plurality of crisscross surface mesh steel wires, the oblique inserting wires are respectively inclined towards opposite directions of two ends of the surface mesh steel wires on the same surface mesh steel wire of the steel wire meshes, and the oblique inserting wires inclined towards opposite directions are distributed on the surface mesh steel wires in a staggered manner. By adopting the technical scheme, the performance of the product is improved, the internal connection is more reliable and stable, and the bearing capacity is better on the premise that the production process of the light steel wire mesh sandwich plate is not changed fundamentally and the cost of the product is not increased. The patent relates to a light steel wire mesh sandwich panel, and proposes various inclined wire inserting arrangement modes, so that the bearing capacity of the sandwich panel is improved. However, as the core material heat-insulating plate is often formed by splicing blocks, a cold bridge is easily caused at the splice joint to influence the heat-insulating effect; the two sides of the heat preservation layer are smooth, the connection biting force between the heat preservation layer and the concrete layer is difficult to ensure, and the rigidity is difficult to ensure.
Disclosure of Invention
The invention aims to overcome the defects, and provides a steel wire mesh frame composite heat-insulating sandwich wallboard node with better heat-insulating performance and stronger rigidity and a construction method thereof, which are used for solving the problems of heat insulation, construction, strength and the like.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the steel wire net rack composite heat-insulating sandwich wallboard node is a T-shaped, L-shaped or Z-shaped node structure formed by connecting steel wire net rack composite heat-insulating sandwich wallboards, and the wallboard connecting part is a column; the steel wire net rack composite heat-insulating sandwich wallboard comprises a steel wire net rack formed by two steel wire net pieces which are parallel to each other and a plurality of cold-drawn oblique-inserted steel wires used for connecting the two steel wire net pieces, a three-layer heat-insulating plate clamped between the two steel wire net pieces and concrete layers arranged on two sides of the heat-insulating plate; the steel wire mesh is formed by welding steel wires in a longitudinal and transverse intersecting manner; the three-layer heat-insulating plate comprises a middle thicker main heat-insulating plate, wherein the two sides of the middle thicker main heat-insulating plate are respectively provided with thinner heat-insulating plates at intervals, the two sides of the heat-insulating plates are distributed in a 'toothed manner' on the two sides of the middle main heat-insulating plate, and the heat-insulating plate on any side can cover the joint positions of the middle main heat-insulating plate; and the joint of the three layers of heat-insulating plates is bonded by an adhesive.
Further, the T-shaped node structure is that a wall body formed by the steel wire net frame composite heat-insulating sandwich wall boards is distributed in a T shape, the nodes are columns, the heat-insulating boards in the wall body are arranged according to the three-layer heat-insulating boards, the node outside is externally added with the node additional heat-insulating boards, the node additional oblique inserting steel wires and the node steel wire meshes, the node steel wire meshes are arranged on two sides of the node additional heat-insulating boards, the node additional oblique inserting steel wires are connected with the node steel wire meshes on two sides, and node additional reinforcing steel bars are additionally arranged at corners on the inner side of the node.
Or, further, the L-shaped node structure, namely the wall body formed by the steel wire net frame composite heat insulation sandwich wallboard is in L-shaped distribution, the nodes are columns, the heat insulation boards in the wall body are distributed according to the three-layer heat insulation boards, the node-attached oblique inserted steel wires and the node-attached steel wire meshes are arranged on two sides of the node-attached heat insulation boards, the node-attached oblique inserted steel wires are connected with the node-attached steel wire meshes and the outside steel wire meshes on the inner side of the node-attached heat insulation boards, the outside steel wire meshes and the outside node-attached steel wire meshes are bound through steel wires, and the node-attached steel bars are additionally arranged on the corner on the inner side of the node.
Or, further, the Z-shaped node structure, namely the wall body formed by the steel wire net frame composite heat insulation sandwich wall boards is in Z-shaped distribution, the nodes are columns, the heat insulation boards in the wall body are distributed according to the three layers of heat insulation boards, a layer of node additional heat insulation boards are added at the corners of the outer sides of the two nodes, node additional reinforcing steel bars are additionally arranged at the corners of the inner sides of the two nodes, a steel wire mesh at the node is additionally arranged at the other side of the node, and the steel wire mesh at the outer side and the steel wire mesh at the node at the outer side are bound through steel wires.
Further, the thickness of the middle main insulation board is 40mm-150mm; the width of each heat insulation plate at two sides is 300mm, the thickness is 30mm-80mm, and the distance between two adjacent plates is 250mm.
Further, the three-layer heat-insulating plate is made of EPS, XPS and rock wool materials,
further, the concrete layer is subjected to on-site spraying construction or factory prefabrication, and the thickness of the concrete layer is 50-100 mm; the concrete layer has a strength grade of at least 20MPa.
Further, the cold-drawn oblique-inserted steel wire is a cold-drawn steel wire with the diameter of 3mm, and the cold-drawn oblique-inserted steel wire is subjected to galvanization corrosion prevention treatment; the diameter of the node additional steel bar is 8mm.
Further, the steel wire mesh is formed by longitudinally and transversely intersecting and welding steel wires with the transverse interval and the longitudinal interval of 50mm.
The construction method of the steel wire mesh frame composite heat-insulating sandwich wallboard node comprises the following steps:
A. and (3) base layer treatment: arranging metal anchors on footings of the wall or the floor surface of the wall bottom to ensure the bottom balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, and implanting two rows of steel bars with a certain length on the floor surface of the wall bottom to fix the balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, thereby ensuring the reliable connection of the wallboards;
B. installing a steel wire net frame and a steel wire net frame sandwich layer formed by heat insulation plates: arranging the steel wire net rack sandwich layer according to the design requirement to a corresponding position; b, arranging a steel wire net rack sandwich layer between two rows of steel bars of the base layer in the step A, and binding the steel bars and the steel wire net pieces; fixing one side of the wallboard by using a supporting piece, wherein all the supports are positioned on the same side, and pouring concrete on the other side;
C. node and joint processing: reinforcing and connecting the joint of two heat-insulating boards of the same wall by using an additional steel wire mesh sheet, and covering by using the additional steel wire mesh sheet with the thickness of 50mm multiplied by 50mm; arranging a layer of node additional heat-insulating plate and node additional oblique inserted steel wires at one side of a corner of a wall column node and a steel wire mesh at the node for heat insulation and reinforcement at the cold bridge, and arranging node additional reinforcing steel bars at the other side of the corner node for reinforcement;
D. spraying concrete: spraying a concrete layer on the other side of the support, and carrying out concrete construction on the support surface after a certain strength is reached;
E. leveling mortar: and (3) manually leveling after spraying concrete is finished, so that the surface of the wall body and the corners of the nodes are smooth.
Compared with the prior art, the invention has the following beneficial effects:
the invention can be used for wall column construction in a concrete frame structure and construction of a shear wall in a shear wall structure, and by arranging three layers of heat insulation plates in the shear wall structure, the existence of a cold bridge at a joint is avoided, and the heat insulation performance is improved; the three layers of heat-insulating boards are reasonably spliced to form a toothed joint, so that the biting force of the contact surface of the heat-insulating layer and the concrete layer is enhanced, and the structural rigidity is increased; the heat preservation layers are concave-convex alternately, which is favorable for spraying and leveling of the concrete layer. Through set up additional reinforcing bar, additional heated board and wire rack in wall post node structure department, fine solution the existence of wall post node department cold bridge and guaranteed the wholeness of structure, have reasonable in design, construction simple advantage.
Description of the drawings:
FIG. 1 is a schematic diagram of a steel wire mesh frame composite heat-insulating sandwich wallboard structure of the invention;
FIG. 2 is a view of the "T" node configuration formed in FIG. 1;
FIG. 3 is a view of the "L" node configuration formed in FIG. 1;
FIG. 4 is a view of the "Z" node configuration formed in FIG. 1;
in the figure: 1-an insulation board; 2-a concrete layer; 3-cold drawing the oblique inserted steel wire; 4-wire mesh sheet; 5-adhesive; 6-column; 7-node additional steel bars; 8-node adding an insulation board; 9-node additional oblique insertion steel wire; 10-wire mesh sheet at the node.
The length of the a-flange is determined by design requirements, and when a=0, the node is a rectangular column.
Detailed Description
The invention is further illustrated below with reference to examples.
As shown in figures 1-4, the steel wire frame composite heat-insulating sandwich wallboard node is of a T-shaped, L-shaped or Z-shaped node structure formed by connecting steel wire frame composite heat-insulating sandwich wallboards, and the wallboard connecting part is a column 6, and as shown in figure 1, the steel wire frame composite heat-insulating sandwich wallboard comprises a steel wire frame consisting of two steel wire meshes 4 which are parallel to each other and a plurality of cold-drawing oblique inserting steel wires 3 with the diameter of 3mm for connecting the two steel wire meshes 4, a three-layer heat-insulating board 1 clamped between the two steel wire meshes 4 and concrete layers 2 arranged on two sides of the heat-insulating board 1. The steel wire mesh 4 is formed by longitudinally and transversely intersecting and welding steel wires with the transverse interval and the longitudinal interval of 50mm. The three-layer heat-insulating plate 1 comprises a main heat-insulating plate 1 with a thicker middle layer, and the two sides of the main heat-insulating plate are respectively provided with thinner heat-insulating plates 1 at intervals; the thickness of the middle main heat insulation plate is 40mm-150mm; the width of each heat insulation plate at two sides is 300mm, the thickness is 30mm-80mm, and the distance between two adjacent plates is 250mm. The three-layer heat-insulating board 1 is made of EPS, XPS and rock wool materials. The two sides of the heat insulation boards 1 are distributed in a 'toothed shape' on the two sides of the middle main heat insulation board 1, and the heat insulation board 1 on any side can cover the joint position of the middle main heat insulation board 1. The joint of the three-layer heat-insulating board 1 is bonded by an adhesive 5. Wherein, the concrete layer 2 is sprayed on site or prefabricated in factories, the thickness is 50mm-100mm, and the strength grade of the concrete layer 2 is at least 20MPa. The cold drawn oblique inserted steel wire 3 adopts galvanization corrosion prevention treatment.
As shown in FIG. 2, the T-shaped node structure is that the wall body formed by the steel wire net frame composite heat insulation sandwich wall board is distributed in a T shape, the nodes are columns, the heat insulation boards 1 in the wall body are distributed according to the three-layer heat insulation boards 1, the node-added heat insulation boards 8, the node-added oblique inserted steel wires 9 and the node-added steel wire meshes 10 are additionally arranged on the outer sides of the nodes, the node-added steel wire meshes 10 are arranged on two sides of the node-added heat insulation boards 8, the node-added oblique inserted steel wires 9 are connected with the node-added steel wire meshes 10 on two sides, and the node-added steel bars 7 with the diameters of 8mm are additionally arranged at the corners on the inner sides of the nodes.
As shown in FIG. 3, the L-shaped node structure is that the wall body formed by the steel wire net frame composite heat insulation sandwich wall board is distributed in an L shape, the nodes are columns, the heat insulation boards 1 in the wall body are distributed according to the three-layer heat insulation boards 1, the node-attached heat insulation boards 8, the node-attached oblique insertion steel wires 9 and the node-attached steel wire meshes 10 are arranged at the corners of the outer sides of the nodes, the node-attached steel wire meshes 10 are arranged at the two sides of the node-attached heat insulation boards 8, the node-attached oblique insertion steel wires 9 are connected with the node-attached steel wire meshes 10 at the inner sides of the node-attached heat insulation boards 8 and the outer side steel wire meshes 4, the outer side steel wire meshes 4 and the outer side node-attached steel wire meshes 10 are bound through steel wires, and node-attached steel bars 7 with diameters of 8mm are additionally arranged at the corners of the inner sides of the nodes.
As shown in FIG. 4, the "Z" type node structure, i.e. the wall body formed by the steel wire mesh frame composite heat insulation sandwich wall board is in "Z" type distribution, the nodes are columns, the heat insulation boards 1 in the wall body are arranged according to the three-layer heat insulation boards 1, a layer of node additional heat insulation boards 8 are added at the corners of the outer sides of the two nodes, node additional reinforcing steel bars 7 with the diameter of 8mm are additionally arranged at the corners of the inner sides of the two nodes, a steel wire mesh 10 at the node is additionally arranged at the other side of the node, and the steel wire mesh 4 at the outer side and the steel wire mesh 10 at the node at the outer side are bound through steel wires.
A construction method of a steel wire mesh frame composite heat-insulating sandwich wallboard node comprises the following steps:
A. and (3) base layer treatment: arranging metal anchors on footings of the wall or the floor surface of the wall bottom to ensure the bottom balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, and implanting two rows of steel bars with a certain length on the floor surface of the wall bottom to fix the balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, thereby ensuring the reliable connection of the wallboards;
B. installing a steel wire net frame and a steel wire net frame sandwich layer formed by heat insulation plates: arranging the steel wire net rack sandwich layer according to the design requirement to a corresponding position; the sandwich layer is very easy to place and install because of its relatively light weight. B, arranging a steel wire mesh frame sandwich layer between two rows of steel bars of the base layer in the step A, and binding the steel bars with the steel wire mesh sheet 4; and depending on the particular construction environment, the support is usually fixed on one side of the wall panel by a support member, and whether support is generally required depends on several conditions: such as panel height, wind conditions, etc. All supports should be positioned on the same side, and concrete on the other side is poured first;
C. node and joint processing: the joint of two heat preservation boards 1 of the same wall is reinforced and connected by using an additional steel wire mesh sheet, and the joint is covered by using the additional steel wire mesh sheet with the thickness of 50mm multiplied by 50mm; arranging a layer of node additional heat-insulating plate 8 and node additional oblique inserted steel wires 9 on one side of a corner of a wall column node and a steel wire mesh 10 at the node for heat insulation and reinforcement of a cold bridge, and arranging node additional steel bars 7 on the other side of the corner node for reinforcement;
D. spraying concrete: spraying the concrete layer 2 on the other side of the support, and carrying out concrete construction on the support surface after a certain strength is reached. Concrete construction can be achieved in a variety of ways, and in particular, mortar pumps or spray guns can be used for spraying. Typically, the thickness of the concrete on each side is at least 50mm; to ensure corrosion resistance, the wire mesh should cover at least 15mm and the thickness of the cover layer of concrete must be increased in aggressive environments.
E. Leveling mortar: and (3) manually leveling after spraying concrete is finished, so that the surface of the wall body and the corners of the nodes are smooth.
The foregoing is an exemplary embodiment of the present invention, and the implementation of the present invention is not limited thereto.
Claims (10)
1. The utility model provides a steel wire rack composite heat preservation sandwich wallboard node which characterized in that: the steel wire net rack composite heat-insulating sandwich wallboard joints are formed by connecting steel wire net rack composite heat-insulating sandwich wallboards with each other to form a T-shaped, L-shaped or Z-shaped joint structure, and the wallboard joints are columns; the steel wire net rack composite heat-insulating sandwich wallboard comprises a steel wire net rack formed by two steel wire net pieces (4) which are parallel to each other and a plurality of cold-drawing oblique inserting steel wires (3) which are used for connecting the two steel wire net pieces (4), a three-layer heat-insulating board (1) clamped between the two steel wire net pieces (4) and concrete layers (2) arranged on two sides of the heat-insulating board (1); the steel wire mesh (4) is formed by welding steel wires in a crisscross manner; the three-layer heat-insulating plate (1) comprises a middle layer of thicker main heat-insulating plate (1), wherein the two sides of the middle layer of thicker main heat-insulating plate (1) are respectively arranged at intervals, the two sides of the heat-insulating plate (1) are distributed in a 'horse-tooth shape' on the two sides of the middle main heat-insulating plate (1), and the heat-insulating plate (1) on any side can cover the joint positions of the middle main heat-insulating plate (1); the joint of the three-layer heat-insulating board (1) is bonded by an adhesive (5).
2. The wire mesh frame composite insulation sandwich wallboard node of claim 1, wherein: the wall body that "T" type node structure, steel wire rack compound heat preservation sandwich wallboard formed promptly is "T" type distribution, and node department is the cylinder, and heated board (1) are arranged according to in the wall body three-layer heated board (1), node outside add node additional heated board (8), node additional insert steel wire (9) and node department steel wire net piece (10) to one side, node department steel wire net piece (10) set up in node additional heated board (8) both sides, node additional insert steel wire net piece (10) of node department of both sides are connected to one side steel wire (9), and node inboard corner adds and is equipped with node additional reinforcing bar (7).
3. The wire mesh frame composite insulation sandwich wallboard node of claim 1, wherein: the wall body that "L" type node structure, steel wire rack compound heat preservation sandwich wallboard formed promptly is "L" type distribution, and node department is the cylinder, and heated board (1) are arranged according to three-layer heated board (1), node outside corner additional node additional heated board (8), node additional oblique insert steel wire (9) and node department steel wire net piece (10), node department steel wire net piece (10) set up in node additional heated board (8) both sides, node additional oblique insert steel wire (9) connect node additional heated board (8) inboard node department steel wire net piece (10) and outside steel wire net piece (4), and outside node department steel wire net piece (10) pass through the steel wire ligature, and node inboard corner adds and is equipped with node additional reinforcing bar (7).
4. The wire mesh frame composite insulation sandwich wallboard node of claim 1, wherein: the wall body that "Z" type node structure, steel wire rack compound heat preservation sandwich wallboard formed promptly is "Z" type distribution, and node department is the cylinder, and heated board (1) are arranged according to three-layer heated board (1) in the wall body, and additional one deck node additional heated board (8) are in two node outside corners, and node additional bar (7) are established in the inboard corner of two nodes in addition, and node department steel wire net piece (10) are established in node department opposite side additional, and steel wire net piece (4) in the outside and node department steel wire net piece (10) in the outside pass through the steel wire ligature.
5. The wire mesh frame composite thermal insulation sandwich wallboard node according to any one of claims 2-4, wherein: the thickness of the middle main heat insulation plate is 40mm-150mm; the width of each heat insulation plate at two sides is 300mm, the thickness is 30mm-80mm, and the distance between two adjacent plates is 250mm.
6. The wire mesh frame composite thermal insulation sandwich wallboard node according to any one of claims 2-4, wherein: the three-layer heat-insulating board (1) is made of EPS, XPS and rock wool materials.
7. The wire mesh frame composite thermal insulation sandwich wallboard node according to any one of claims 2-4, wherein: the concrete layer (2) is subjected to on-site spraying construction or factory prefabrication, and the thickness of the concrete layer is 50-100 mm; the concrete layer (2) has a strength grade of at least 20MPa.
8. The wire mesh frame composite thermal insulation sandwich wallboard node according to any one of claims 2-4, wherein: the cold-drawn oblique inserted steel wire (3) is a cold-drawn steel wire with the diameter of 3mm, and the cold-drawn oblique inserted steel wire (3) is subjected to galvanization corrosion prevention treatment; the diameter of the node additional steel bar is 8mm.
9. The wire mesh frame composite thermal insulation sandwich wallboard node according to any one of claims 2-4, wherein: the steel wire mesh (4) is formed by longitudinally and transversely intersecting and welding steel wires with the transverse interval and the longitudinal interval of 50mm.
10. A construction method for a steel wire mesh frame composite heat-insulating sandwich wallboard node by adopting any one of the steel wire mesh frame composite heat-insulating sandwich wallboard nodes, which is characterized by comprising the following steps of: the method comprises the following steps:
A. and (3) base layer treatment: arranging metal anchors on footings of the wall or the floor surface of the wall bottom to ensure the bottom balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, and implanting two rows of steel bars with a certain length on the floor surface of the wall bottom to fix the balance of the steel wire mesh frame composite heat-insulation sandwich wallboard, thereby ensuring the reliable connection of the wallboards;
B. installing a steel wire net frame and a steel wire net frame sandwich layer formed by heat insulation plates: arranging the steel wire net rack sandwich layer according to the design requirement to a corresponding position; b, arranging a steel wire net rack sandwich layer between two rows of steel bars of the base layer in the step A, and binding the steel bars with a steel wire net (4); fixing one side of the wallboard by using a supporting piece, wherein all the supports are positioned on the same side, and pouring concrete on the other side;
C. node and joint processing: reinforcing and connecting the joint of two heat preservation boards (1) of the same wall by using an additional steel wire mesh sheet, and covering by using an additional steel wire mesh sheet with the thickness of 50mm multiplied by 50mm; arranging a layer of node additional heat-insulating plates (8), node additional oblique inserted steel wires (9) and a steel wire mesh (10) at the nodes on one side of the corner of the wall column node for heat insulation and reinforcement at the cold bridge, and arranging node additional steel bars (7) at the other side of the corner node for reinforcement;
D. spraying concrete: spraying a concrete layer (2) on the other side of the support, and carrying out concrete construction on the support surface after a certain strength is reached;
E. leveling mortar: and (3) manually leveling after spraying concrete is finished, so that the surface of the wall body and the corners of the nodes are smooth.
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| CN107724596B (en) * | 2017-10-09 | 2023-08-29 | 清华大学建筑设计研究院有限公司 | Partially prefabricated sandwich wallboard, wall structure thereof and building |
| CN109322421A (en) * | 2018-10-10 | 2019-02-12 | 中清大科技股份有限公司 | The multi-storey steel structure of the double-deck load-bearing concrete shear wall including built-in sandwiched heat insulation board is built and its method of construction |
| CN109322422A (en) * | 2018-10-10 | 2019-02-12 | 中清大科技股份有限公司 | A kind of double-deck load-bearing concrete shear wall structure and its method of construction of built-in sandwiched heat insulation board |
| CN109267674B (en) * | 2018-11-20 | 2023-12-12 | 河北卉原建材有限公司 | Structure and method for connecting composite heat-insulating external wall board with steel structure beam column |
| CN112542779A (en) * | 2020-12-04 | 2021-03-23 | 国网山东省电力公司滨州供电公司 | Outdoor protection equipment for power supply system |
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