A kind of no cavity complex heat-preservation breaks heat bridge structure body and construction method
Technical field
The invention belongs to construction engineering technical field, more particularly to a kind of no cavity complex heat-preservation break heat bridge structure body and
Construction method.
Background technology
It refers to the armored concrete being in the building enclosures such as exterior wall and roofing or beams of metal/column/rib/accessory to build heat bridge
Equal positions, since the heat-transfer capability at these positions is strong, hot-fluid comparatively dense, internal surface temperature is relatively low, therefore referred to as heat bridge.
Building exterior wall heat preserving is the important component of building energy conservation, while being also the important component of building fire protection,
And the thermal insulation material that building exterior wall heat preserving uses can be divided into A grades of thermal insulation materials and B grades of thermal insulation materials, if it is using A grades of heat preservations
Material can then cause building exterior wall heat preserving cost to increase, and if it is using B grade thermal insulation materials, and can cause potential problem of preventing fires.
For this purpose, it is specified that the thermal insulation material used when external wall and both sides in the Code for fire protection design of buildings in China
When wall is constituted without cavity compound insulation structure body, the fire endurance of the structure should meet codes and standards, and propose as guarantor
When the combustibility of adiabator is B1, B2 grades, thermal insulation material both sides wall should use incombustible material, and thickness is no less than
50mm。
With the continuous promotion of China's building energy-saving standard, the reason especially in building " big thickness heat preservation " and " no heat bridge "
It reads under requiring, a kind of insulation structure for a building exterior wall for not only having met heat preservation energy-saving standard but also having met fire protection requirement of exploitation seems particularly heavy
It wants.
Invention content
In view of the problems of the existing technology, a kind of disconnected heat bridge structure body of no cavity complex heat-preservation of present invention offer and construction
Method realizes heat preservation energy-saving in building exterior wall heat preserving design requirement and is taken into account with fireproof, not only solves construction wall
Heat bridge phenomenon, and meet the fire protection requirement of wall.
To achieve the goals above, the present invention adopts the following technical scheme that:A kind of disconnected heat bridge structure of no cavity complex heat-preservation
Body, including inner structural layer, intermediate insulating layer and external protection;The inner structural layer includes light steel skeleton, lightweight concrete wall
And Change-over frame, light steel skeleton and Change-over frame are cast in lightweight concrete wall, Change-over frame is connected on light steel skeleton;It is described
Intermediate insulating layer includes B1/B2 grades of thermal insulation materials, and B1/B2 grades of thermal insulation materials are blocky plank, and intermediate insulating layer is by several pieces of B1/
B2 grades of thermal insulation material splicing compositions;The external protection includes incombustible material, and incombustible material is block/plank, if external protection by
Dry block incombustible material splicing composition;Adhesive linkage is equipped between the external protection and intermediate insulating layer, external protection is protected with intermediate
It is bonded by adhesive linkage between warm layer and forms no cavity state;It is connected between the external protection and inner structural layer disconnected
Heat bridge anchor bolt, disconnected heat bridge anchor bolt one end are installed on the outer surface of external protection by anchoring disk, break the heat bridge anchor bolt other end according to
It is secondary to pass through adhesive linkage, intermediate insulating layer and inner structural layer, and be fixedly connected with by fastening nut and Change-over frame.
The disconnected heat bridge anchor bolt is the modeling packet muscle screw rod for having plastic wraps fibre composite reinforcement, and the one end for heat bridge anchor bolt of breaking is affixed
Anchor disk.
The Change-over frame is L-shaped connector or rectangle connector, and anchor bolt mounting hole is offered on Change-over frame, and Change-over frame is logical
Tapping screw is crossed to be connected on light steel skeleton.
The groove of horizontal is offered on the mono-/bis-side plate surface of the B1/B2 grades of thermal insulation material, is led to
It crosses groove and improves adhesive strength.
The B1/B2 grades of thermal insulation material uses styrofoam, extruded sheet, graphite polystyrene board, phenolic board or polyurethane sheet.
The incombustible material is using enhancing vertical hair rock wool-steel plywood/block, foam glass board/block, foamed ceramic panel/block, gas
Gel haftplatte/block, aerated concrete panel/block or cement foaming insulation board/block.
The adhesive layer selects glue powder polyphenyl particle slurry, organic heat-insulating mortar, inorganic heat insulation mortar, cement mortar, stone
Lime and brick or mixed mortar.
The construction method of the heat bridge structure body that breaks without cavity complex heat-preservation, includes the following steps:
Step 1:Light steel skeleton is first assembled, then Change-over frame is installed on assembled light steel skeleton predeterminated position, makes switching
Anchor bolt mounting hole on frame insulating layer side towards the middle;
Step 2:By in several pieces of B1/B2 grades of thermal insulation material assembly to light steel skeleton, and B1/B2 grades of thermal insulation materials are logical
It crosses temporary fixture mutually to fix with light steel skeleton, until forming intermediate insulating layer;
Step 3:In assembled good B1/B2 grade thermal insulation materials other side external coating binding paste, until forming bonding
Layer;
Step 4:Several pieces of incombustible materials are carried out assembled and are fitted on intermediate insulating layer by adhesive linkage, until shape
At external protection;
Step 5:Punched using drilling machine, first by the drill bit of drilling machine pass through Change-over frame anchor bolt mounting hole, recycle drill bit according to
It is secondary to drill intermediate insulating layer, adhesive linkage and external protection;
Step 6:First the screw rod of disconnected heat bridge anchor bolt is penetrated from the drilling on external protection, then sequentially pass through adhesive linkage and
Then the drilling of intermediate insulating layer is pierced by from the anchor bolt mounting hole of Change-over frame, until anchoring disk is stuck in the outer of external protection
Surface finally screws in fastening nut, and disconnected heat bridge anchor bolt is fixed together with Change-over frame;
Step 7:Lightweight concrete is poured into a mould into inner structural layer, until lightweight concrete fills up light steel skeleton and protected with intermediate
Gap between warm layer then forms inner structural layer, at this time without cavity after lightweight concrete solidifies to form concrete setting wall
The construction of the disconnected heat bridge structure body of complex heat-preservation terminates.
Beneficial effects of the present invention:
The present invention's breaks heat bridge structure body and construction method without cavity complex heat-preservation, in building exterior wall heat preserving design requirement
It realizes heat preservation energy-saving to take into account with fireproof, not only solves the heat bridge phenomenon of construction wall, and meet the fire prevention of wall
It is required that.
Description of the drawings
Fig. 1 is a kind of stereogram of the disconnected heat bridge structure body of no cavity complex heat-preservation of the present invention;
Fig. 2 is a kind of vertical view of the disconnected heat bridge structure body of no cavity complex heat-preservation of the present invention;
In figure, 1-light steel skeleton, 2-lightweight concrete walls, 3-Change-over frames, 4-B1/B2 grades of thermal insulation material, 5-no
Combustible material, 6-adhesive linkages, 7-disconnected heat bridge anchor bolts, 8-fastening nuts.
Specific implementation mode
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, 2, a kind of no cavity complex heat-preservation breaks heat bridge structure body, including inner structural layer, intermediate insulating layer and
External protection;The inner structural layer includes light steel skeleton 1, lightweight concrete wall 2 and Change-over frame 3, light steel skeleton 1 and Change-over frame
3 are cast in lightweight concrete wall 2, and Change-over frame 3 is connected on light steel skeleton 1;The intermediate insulating layer includes B1/B2 grades
Thermal insulation material 4, B1/B2 grades of thermal insulation materials 4 are blocky plank, and intermediate insulating layer is by several pieces of 4 splicing groups of B1/B2 grades of thermal insulation materials
At;The external protection includes incombustible material 5, and incombustible material 5 is block/plank, and external protection is spliced by several pieces of incombustible materials 5
Composition;It is equipped with adhesive linkage 6 between the external protection and intermediate insulating layer, passes through between external protection and intermediate insulating layer Nian Jie
Layer 6 is bonded and forms no cavity state;Disconnected heat bridge anchor bolt 7 is connected between the external protection and inner structural layer, heat of breaking
7 one end of bridge anchor bolt is installed on the outer surface of external protection by anchoring disk, and disconnected 7 other end of heat bridge anchor bolt sequentially passes through adhesive linkage
6, intermediate insulating layer and inner structural layer, and be fixedly connected with by fastening nut 8 and Change-over frame 3.
The disconnected heat bridge anchor bolt 7 is the modeling packet muscle screw rod for having plastic wraps fibre composite reinforcement, and the one end for heat bridge anchor bolt 7 of breaking is solid
Connect anchoring disk.
The Change-over frame 3 is L-shaped connector or rectangle connector, and anchor bolt mounting hole, Change-over frame are offered on Change-over frame 3
3 are connected in by tapping screw on light steel skeleton 1.
The groove of horizontal is offered on the mono-/bis-side plate surface of the B1/B2 grades of thermal insulation material 4, is led to
It crosses groove and improves adhesive strength.
The B1/B2 grades of thermal insulation material 4 is using styrofoam, extruded sheet, graphite polystyrene board, phenolic board or polyurethane sheet.
The incombustible material 5 is using enhancing vertical hair rock wool-steel plywood/block, foam glass board/block, foamed ceramic panel/block, gas
Gel haftplatte/block, aerated concrete panel/block or cement foaming insulation board.
The adhesive layer 6 selects glue powder polyphenyl particle slurry, organic heat-insulating mortar, inorganic heat insulation mortar, cement mortar, stone
Lime and brick or mixed mortar.
The construction method of the heat bridge structure body that breaks without cavity complex heat-preservation, includes the following steps:
Step 1:Light steel skeleton 1 is first assembled, then Change-over frame 3 is installed on 1 predeterminated position of assembled light steel skeleton, is made
Anchor bolt mounting hole on Change-over frame 3 insulating layer side towards the middle;
Step 2:Several pieces of B1/B2 grades of thermal insulation materials 4 are assembled on light steel skeleton 1, and B1/B2 grades of thermal insulation materials 4
It is fixed by temporary fixture and 1 phase of light steel skeleton, until forming intermediate insulating layer;
Step 3:In assembled good 4 other side external coating binding paste of B1/B2 grades thermal insulation material, until forming bonding
Layer 6;
Step 4:Several pieces of incombustible materials 5 are subjected to assembly and are fitted on intermediate insulating layer by adhesive linkage 6, until
Form external protection;
Step 5:It is punched using drilling machine, the drill bit of drilling machine is first passed through to the anchor bolt mounting hole of Change-over frame 3, recycle drill bit
Intermediate insulating layer, adhesive linkage 6 and external protection are drilled successively;
Step 6:The screw rod of disconnected heat bridge anchor bolt 7 is penetrated from the drilling on external protection first, then sequentially passes through adhesive linkage 6
It with the drilling of intermediate insulating layer, is then pierced by from the anchor bolt mounting hole of Change-over frame 3, until anchoring disk is stuck in external protection
Outer surface finally screws in fastening nut 8, and disconnected heat bridge anchor bolt 7 is fixed together with Change-over frame 3;
Step 7:Lightweight concrete is poured into a mould into inner structural layer, until lightweight concrete fills up light steel skeleton 1 and protected with intermediate
Gap between warm layer then forms inner structural layer, at this time without sky after lightweight concrete solidifies to form concrete setting wall 2
The construction of the disconnected heat bridge structure body of chamber complex heat-preservation terminates.
Scheme in embodiment be not to limit the scope of patent protection of the present invention, it is all without departing from carried out by the present invention etc.
Effect implements or change, is both contained in the scope of the claims of this case.