CN210316037U - Sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing - Google Patents
Sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing Download PDFInfo
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- CN210316037U CN210316037U CN201921153584.0U CN201921153584U CN210316037U CN 210316037 U CN210316037 U CN 210316037U CN 201921153584 U CN201921153584 U CN 201921153584U CN 210316037 U CN210316037 U CN 210316037U
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Abstract
The utility model discloses a sealed disconnected heat bridge structure of steel reinforcement template integration wall body heat preservation seam crossing, including integration inner formword, disconnected heat bridge connecting piece, connector, counter-pull connecting piece, screw rod, nut, steel reinforcement cage, fixed muscle, integration exterior sheathing, heated board A, self-healing concrete, capillary hole, heated board B, the flexible insulation material of back stopper T type, foaming polyethylene stick, building resistant time glue, anti-crack mortar and architectural surface finish. The utility model discloses a tongue-and-groove seam, and seam crossing use back stopper T type flexible insulation material, the foaming polyethylene stick, resistant type sealant and self-healing concrete carry out triple seal, flexible sealing material adopts back stopper T type flexible insulation material, and the vertical part of T type is narrow trapezoidal under wide, closely combine with T type breach under concrete lateral pressure, reach the closely knit nature behind the pouring concrete and be higher than the effect before not pouring, the conventional problem of sealing mode such as gluing of avoiding inefficacy under concrete lateral pressure.
Description
Technical Field
The utility model relates to a sealed disconnected heat bridge structure of wall body heat preservation seam crossing specifically is a sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing belongs to building application technical field.
Background
The prefabricated concrete technology is a technology for designing and building a concrete structure type house building in a field assembly mode after pouring, curing and forming concrete components in a factory. Compared with the traditional cast-in-place building, the fabricated building has the advantages of high industrialization degree, easy guarantee of construction quality, short construction period, high economic benefit, small influence of climate and the like, and has no problems of water consumption, energy consumption, material waste, much waste discharge and the like caused by field construction.
In the existing production process of the precast concrete member, the template is generally dismantled after the casting is finished, so that the labor cost is increased and the material waste is caused. Along with the technical progress, the disassembly-free integrated pouring template can be used for replacing the traditional template, after the template is built and formed, the template is fixed by the connecting rod piece, pouring and maintenance are carried out until the requirement is met, and at the moment, the template, the wall body and the connecting rod piece pre-embedded in concrete form a whole without disassembly. The technical scheme reduces the construction process, reduces the cost, avoids material waste and meets the national requirements of energy conservation and emission reduction.
The heat bridge, also called as cold bridge, generally refers to the heat transfer abnormal part with larger heat conductivity coefficient in the building envelope such as roofing and outer wall. The heat bridge effect is a physical heat conduction effect, because some parts are provided with materials with relatively large heat conduction coefficients, the heat conduction capability is strong, when the indoor and outdoor temperature difference is large, the wall body conducts heat unevenly, and heat flow is very dense at the heat bridge part to form a heat flow bridge, namely a heat bridge area. Thermal bridging can cause a serious problem: the heat is seriously dissipated, and the temperature change range of the wall surface of the wall body is large; the surface of the wall is dewed, and the wall in cold areas is easy to form condensation, frost heaving and freeze thawing phenomena. These problems not only reduce the thermal performance of the wall and cause energy waste, but also reduce the service life of the wall and affect the indoor thermal stability.
Similar with the sandwich wall body, steel bar formwork integration heat preservation outer wall is equipped with the heated board, and the heated board can be established at two-layer template inboardly, accomplishes the heated board concatenation simultaneously when the wall body concatenation. And the seam between the inboard heated board of wall body can't carry out sealing treatment, and the concrete easily gets into seam crossing when concreting, "punctures" the heat preservation, leads to the heat bridge to appear, consequently, proposes a sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing in order to solve above-mentioned problem.
The utility model realizes the purpose through the following technical proposal, a sealing heat-insulation bridge structure at the heat-insulation joint of the integrated wall body of the reinforced template, which comprises an integrated inner template and an integrated outer template, wherein the integrated inner template is connected with the integrated outer template through a split connecting piece; a reinforcement cage is arranged between the integrated inner template and the integrated outer template, and the reinforcement cage is fixed through a fixing rib; and the inner side of the integrated outer template is provided with an insulation board A and an insulation board B.
Preferably, a back plug T-shaped flexible heat insulation material, a foamed polyethylene rod, building weather-resistant glue, anti-crack mortar and a decorative surface layer are arranged between the heat insulation board A and the heat insulation board B from inside to outside at one time, and the decorative surface layer is arranged on the outer side of the integrated outer template.
Preferably, the split connectors are connected through a heat-insulating bridge connector; and the heat insulation bridge connecting piece comprises a connector, the connector is in threaded connection with a screw rod of the opposite-pulling connecting piece, and the screw rod is fixed with the integrated outer template and the integrated inner template through nuts.
Preferably, the T-shaped vertical part of the back plug T-shaped flexible heat insulation material is a trapezoid with a wide upper part and a narrow lower part.
Preferably, the end part of the T-shaped vertical part of the rear plug T-shaped flexible heat-insulating material is provided with a cavity, self-healing concrete is filled in the cavity, and the end part of the cavity is provided with a plurality of capillary holes communicated with the outside.
Preferably, when the integrated inner formwork and the integrated outer formwork are assembled, the joint of the heat-insulating plate is subjected to multiple sealing by adopting a rear plug T-shaped flexible heat-insulating material, a foamed polyethylene rod, building weather-resistant glue and self-healing concrete.
A construction method of a sealed heat-insulation bridge structure at a heat-insulation joint of a reinforced template integrated wall body comprises the following steps:
step A, processing notches on a heat insulation board A and a heat insulation board B on the two steel bar formwork integrated walls to be spliced, so that a T-shaped notch is formed between the heat insulation board A and the heat insulation board B after the two wallboards are spliced;
b, embedding a rear plug T-shaped flexible heat insulation material between the heat insulation board A and the heat insulation board B to form a T-shaped gap;
step C, however. Filling foamed polyethylene rods into gaps between the rear plug T-shaped flexible heat-insulation materials in the integrated outer formwork of the spliced two reinforced formwork integrated wall and the gaps between the T-shaped flexible heat-insulation materials and the T-shaped notches, and compacting the foamed polyethylene rods inwards by using the long strip plates;
and D, finally, pouring building weather-resistant glue and self-healing concrete into the spliced two steel bar formwork integrated wall bodies, wherein the lateral pressure of the concrete acts on the rear plug T-shaped flexible heat insulation material to compress and compact the rear plug T-shaped flexible heat insulation material to the T-shaped notch, so that the rear plug T-shaped flexible heat insulation material is tightly combined with the T-shaped notch, and the purpose of sealing the heat-cutoff bridge is achieved.
The utility model has the advantages that:
(1) the utility model discloses a tongue-and-groove seam, and seam crossing use back stopper T type flexible insulation material, foaming polyethylene stick, resistant type sealant and self-healing concrete (full life cycle) carry out triple sealing, and the outer wall heat preservation seam crossing is sealed effectual.
(2) The utility model discloses the flexible sealing material of seam crossing adopts the flexible insulation material of back stopper T type, and the vertical part of T type be narrow trapezoidal under wide, closely combine with T type breach under concrete lateral pressure, reach the effect that closely knit nature is higher than before not pouring after the pouring concrete, the conventional problem of sealing method inefficacy such as gluing under concrete lateral pressure of beating of avoiding.
(3) In the whole life cycle of the reinforced bar formwork integrated wall, the building weather-resistant adhesive and the foamed polyethylene bar at the joint are gradually aged under the action of external environments such as cold, heat, wind, rain and the like, because the contact area with the sealing surface is small, the local part of the sealing surface gradually loses the sealing effect, when once rainwater breaks through the building weather-resistant glue and the foamed polyethylene rod enters the contact surface of the foamed polyethylene rod and the T-shaped flexible heat-insulating material, the rainwater can infiltrate the cavity from the capillary and contact with the self-healing concrete, trigger the growth and expansion of the self-healing concrete, extrude the T-shaped flexible heat-insulating material in each direction, also extrude the foamed polyethylene rod, further make up or strengthen the sealing of each surface, prevent the rainwater from further breaking through the gap between the T-shaped flexible heat-insulating material and the T-shaped notch, infiltrate into the wall body, and realize the sealing and heat-proof bridge in the whole life cycle.
(4) The utility model discloses when filling the concrete, if there is the moisture infiltration of concrete to the vertical part tip of back stopper T type flexible insulation material T type, get into the cavity and contact with the self-healing concrete, also can trigger self-healing concrete growth, inflation to just strengthen sealedly in the construction stage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of the utility model at a;
FIG. 3 is a schematic view of the interior of the counter-pull connector of the present invention;
figure 4 is the utility model discloses steel reinforcement cage installation schematic diagram.
In the figure: 1. the integrated inner formwork comprises an integrated inner formwork, 2 thermal insulation bridge connecting pieces, 21, a connector, 3, a split connecting piece, 31, a screw, 32, a nut, 4, a reinforcement cage, 41, a fixing rib, 5, an integrated outer formwork, 6, insulation boards A and 7, self-healing concrete, 8, capillary holes, 9, insulation boards B and 10, rear plug T-shaped flexible insulation materials, 11, a foamed polyethylene rod, 12, building weather-resistant glue, 13, anti-crack mortar, 14 and a decorative surface layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a sealed heat-insulated bridge structure at a heat-insulating joint of a reinforced form integrated wall comprises an integrated inner form 1 and an integrated outer form 5, wherein the integrated inner form 1 and the integrated outer form 5 are connected through a split connector 3; a reinforcement cage 4 is arranged between the integrated inner formwork 1 and the integrated outer formwork 5, and the reinforcement cage 4 is fixed through a fixing rib 41; and a heat insulation plate A6 and a heat insulation plate B9 are arranged on the inner side of the integrated outer template 5.
As a technical optimization scheme of the utility model, heated board A6 with once be equipped with back stopper T type flexible insulation material 10, foamed polyethylene stick 11, building resistant weather glue 12, anti-crack mortar 13 and architectural surface 14 from inside to outside between the heated board B9, just architectural surface 14 sets up the outside of integration exterior sheathing 5.
As a technical optimization scheme of the utility model, the split connecting pieces 3 are connected through the heat-insulation bridge connecting piece 2; and the heat insulation bridge connecting piece 2 comprises a connector 21, the connector 21 is in threaded connection with a screw rod 31 of the opposite-pulling connecting piece 3, and the screw rod 31 is fixed with the integrated outer template 5 and the integrated inner template 1 through screw caps 32.
As a technical optimization scheme, the vertical part of the T type of the flexible insulation material 10 of back stopper T type is narrow trapezoidal under wide, and the vertical part of T type is narrow trapezoidal under wide, closely combines with T type breach under concrete lateral pressure, reaches closely the nature is higher than the effect before not pouring behind the pouring concrete, the problem of sealing mode inefficacy such as the conventional glue of beating of avoiding under concrete lateral pressure.
As the utility model discloses a technical optimization scheme, the vertical partial tip of back stopper T type flexible insulation material 10T type is equipped with the cavity, and the cavity intussuseption is full of self-healing concrete 7, and the cavity tip is equipped with a plurality of capillary holes 8 and communicates with each other with the outside, and the size and the number in capillary hole need ensure that it receives the extrusion back of self-healing concrete, still have the space and communicate with each other with back stopper T type elastic insulation material outside. The self-healing concrete in the cavity can ensure that the end part of the T-shaped vertical part of the rear plug T-shaped elastic heat-insulating material has certain rigidity, and the displacement of the foamed polyethylene rod to the inner side of the wall body during extrusion is limited. And when the building weather-resistant adhesive and the foamed polyethylene rod are aged, once rainwater breaks through the building weather-resistant adhesive and the foamed polyethylene rod enters the contact surface of the foamed polyethylene rod and the T-shaped elastic heat-insulating material, the rainwater can permeate into the cavity from the capillary or be sucked into the cavity by the capillary phenomenon to be contacted with the self-healing concrete, and the self-healing concrete is triggered to grow and expand. After the self-healing concrete grows and expands, the T-shaped elastic heat-insulating materials in all directions can be extruded, the foamed polyethylene rod is also extruded, the sealing of all surfaces is further enhanced, and rainwater is prevented from further breaking through the gap between the T-shaped elastic heat-insulating materials and the T-shaped notch and permeating into a wall body.
As a technical optimization scheme, when integration inner formword 1 and integration 5 external formword are assembled, adopt back stopper T type flexible insulation material 10, foaming polyethylene stick 11, building weather resistant glue 12 and self-healing concrete 7 to carry out multiple sealing in the seam crossing of its heated board, avoid the concrete to puncture the heat preservation and "heat bridge" effect appears.
A construction method of a sealed heat-insulation bridge structure at a heat-insulation joint of a reinforced template integrated wall body comprises the following steps:
step A, processing notches on a heat insulation board A6 and a heat insulation board B9 on the two steel bar formwork integrated walls to be spliced, so that a T-shaped notch is formed between the heat insulation board A6 and the heat insulation board B9 after the two wallboards are spliced;
b, embedding the rear plug T-shaped flexible heat insulation material 10 between a heat insulation plate A6 and a heat insulation plate B9 to form a T-shaped gap;
step C, however. Filling foamed polyethylene rods 11 into gaps between the rear plug T-shaped flexible heat-insulation material 10 in the integrated outer formwork of the spliced two reinforced formwork integrated wall body and the T-shaped gaps, and compacting the foamed polyethylene rods inwards by using the strip plates;
and D, finally, pouring the building weather-resistant glue 12 and the self-healing concrete 7 into the spliced two steel bar formwork integrated wall bodies, wherein the lateral pressure of the concrete acts on the rear plug T-shaped flexible heat insulation material 10 to tightly press and compact the rear plug T-shaped flexible heat insulation material to the T-shaped notch, so that the rear plug T-shaped flexible heat insulation material 10 is tightly combined with the T-shaped notch, and the purpose of sealing the heat-cutoff bridge is achieved.
The utility model discloses when using, process out the breach on heated board A, the heated board B on will planning two steel bar formwork integration wall bodies that splice for form T type breach between heated board A, the heated board B after two blocks of wallboard concatenations, the size of this T type breach slightly is less than the flexible insulation material of back stopper T type, and vertical part also is narrow trapezoidal under the width. Two steel bar formwork integration wall body sides that will plan to splice are spliced, before two blocks of wall body complete contact, the gap after the interval is compared and is accomplished the concatenation is a little bigger, and the flexible insulation material of back stopper T type forms T type breach between embedding heated board A, the heated board B this moment. After embedding, the two sub-wall bodies are moved and laterally spliced, the rear plug T-shaped flexible heat insulation material is compressed with the T-shaped notch, at the moment, the rear plug T-shaped flexible heat insulation material can arch or have a tendency of being separated from the T-shaped notch under extrusion, a reinforcement cage in the wall body restrains the rear plug T-shaped flexible heat insulation material, so that the rear plug T-shaped flexible heat insulation material cannot generate large displacement, and gaps possibly exist between the rear plug T-shaped flexible heat insulation material and the T-shaped notch at the moment. And filling foamed polyethylene rods into gaps between the integrated outer templates of the spliced two steel bar formwork integrated wall bodies, and compacting the foamed polyethylene rods inwards by using the strip plates. Concrete is poured into the spliced two steel bar formwork integrated wall, at the moment, the lateral pressure of the concrete acts on the rear plug T-shaped flexible heat insulation material, the rear plug T-shaped flexible heat insulation material is compressed and compacted towards the T-shaped notch, the rear plug T-shaped flexible heat insulation material is tightly combined with the T-shaped notch, and the purpose of sealing and breaking a heat bridge is achieved. At the in-process that the flexible insulation material of back stopper T type was compressed tightly, because the capillary hole exists, the self-healing concrete below in the cavity is compared the top rigidity little, and the self-healing concrete in the cavity moves downwards under the extrusion, is close to the flexible insulation material of back stopper T type lower extreme more, forms the support to the foaming polyethylene stick of outside back stopper, limits its displacement, avoids it to get into the integration exterior sheathing inboard completely, promotes the sealed effect of foaming polyethylene stick. And sequentially coating building weather-resistant glue and anti-crack mortar outside the foamed polyethylene rod, and finally finishing the decorative surface layer.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing which characterized in that: the formwork comprises an integrated inner formwork (1) and an integrated outer formwork (5), wherein the integrated inner formwork (1) is connected with the integrated outer formwork (5) through a split connecting piece (3); a reinforcement cage (4) is arranged between the integrated inner formwork (1) and the integrated outer formwork (5), and the reinforcement cage (4) is fixed through a fixing rib (41); and the inner side of the integrated outer template (5) is provided with an insulation board A (6) and an insulation board B (9).
2. The heat insulation bridge structure for the heat insulation joint of the steel reinforced formwork integrated wall body according to claim 1, wherein: a back plug T-shaped flexible heat insulation material (10), a foamed polyethylene rod (11), building weather-resistant glue (12), anti-cracking mortar (13) and a decorative surface layer (14) are arranged between the heat insulation board A (6) and the heat insulation board B (9) from inside to outside at one time, and the decorative surface layer (14) is arranged on the outer side of the integrated outer template (5).
3. The heat insulation bridge structure for the heat insulation joint of the steel reinforced formwork integrated wall body according to claim 1, wherein: the opposite pull connecting pieces (3) are connected through a heat insulation bridge connecting piece (2); and the heat insulation bridge connecting piece (2) comprises a connector (21), the connector (21) is in threaded connection with a screw rod (31) of the opposite-pull connecting piece (3), and the screw rod (31) is fixed with the integrated outer template (5) and the integrated inner template (1) through a nut (32).
4. The heat insulation bridge structure for the heat insulation joint of the steel reinforced formwork integrated wall body according to claim 2, wherein: the T-shaped vertical part of the rear plug T-shaped flexible heat insulation material (10) is in a trapezoid shape with a wide upper part and a narrow lower part.
5. The heat insulation bridge structure for the heat insulation joint of the steel reinforced formwork integrated wall body according to claim 4, wherein: the flexible heat preservation material of back stopper T type (10) T type vertical part tip is equipped with the cavity, and the cavity intussuseption is full of self-healing concrete (7), and the cavity tip is equipped with a plurality of capillary holes (8) and communicates with each other with the outside.
6. The heat insulation bridge structure for the heat insulation joint of the steel reinforced formwork integrated wall body according to claim 4, wherein: when integration inner formword (1) and integration exterior sheathing (5) are assembled, adopt back stopper T type flexible insulation material (10), foaming polyethylene stick (11), building weather resistant adhesive (12) and self-healing concrete (7) to carry out multiple sealing at the seam crossing of its heated board, avoid the concrete to puncture the heat preservation and appear "heat bridge" effect.
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| CN201921153584.0U CN210316037U (en) | 2019-07-22 | 2019-07-22 | Sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing |
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| CN201921153584.0U CN210316037U (en) | 2019-07-22 | 2019-07-22 | Sealed disconnected heat bridge structure of steel bar formwork integration wall body heat preservation seam crossing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219378A (en) * | 2019-07-22 | 2019-09-10 | 中铁建设集团有限公司 | A kind of disconnected bridge structure of steel bar template integrated wall heat preservation seam crossing sealing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219378A (en) * | 2019-07-22 | 2019-09-10 | 中铁建设集团有限公司 | A kind of disconnected bridge structure of steel bar template integrated wall heat preservation seam crossing sealing |
| CN110219378B (en) * | 2019-07-22 | 2024-08-09 | 中铁建设集团有限公司 | Sealing and heat-insulating bridge structure for heat-insulating joint of reinforced bar formwork integrated wall |
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