CN110629928A - Site construction method of external wall panel - Google Patents
Site construction method of external wall panel Download PDFInfo
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- CN110629928A CN110629928A CN201910594713.8A CN201910594713A CN110629928A CN 110629928 A CN110629928 A CN 110629928A CN 201910594713 A CN201910594713 A CN 201910594713A CN 110629928 A CN110629928 A CN 110629928A
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- Prior art keywords
- external wall
- wall panel
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- heat
- thickness
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The embodiment of the invention provides a site construction method of an external wall panel, which is applied to a construction site of a building and specifically comprises the steps of transporting the external wall panel which is manufactured in a concrete member prefabricating factory in advance to the construction site according to the quantity and specification required by a construction drawing; installing and hoisting the external wall panel to the specified position of the construction drawing and fixing the external wall panel; binding reinforcing steel bars in a longitudinal space formed between the left external wall panel and the right external wall panel and a transverse space formed between the left external wall panel and the right external wall panel which are adjacent; carrying out formwork support on the inner side of the longitudinal space and the inner side of the transverse space; and pouring concrete in the longitudinal space and the transverse space to form a column body and a beam body of a frame structure of the building. Because the external wall panel forms the main part of the structure main body and is completed in a concrete member prefabricating factory, the external wall panel can avoid the image of the environment to the maximum extent and solve the problem that the construction period and the quality can not be ensured under the condition of the prior open-air construction.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a field construction method of an external wall panel.
Background
At present, for permanent or semi-permanent buildings, the adoption of building materials such as reinforced concrete is the mainstream, namely, a foundation is built on a building site, reinforcing steel bars are tied on the foundation, a formwork is erected, then concrete is poured to form a frame, a floor slab, a stair, a wall body and the like of the building, and finally the building construction of the building is finished through finishing by plastering and the like.
However, the building is generally constructed in the open air, and particularly, the outer wall body as a main component needs to be constructed and formed by building blocks after the frame construction is completed. The outdoor construction process often can receive the image of wind frost sleet, can't be under bad weather construction, can appear the quality problem when the improper temperature appears in the external world again exactly to make time limit for a project and quality can't obtain guaranteeing.
Disclosure of Invention
In view of the above, the present invention provides a site construction method for an external wall panel, which is used for ready-made installation of a prefabricated external wall panel, so as to solve the problem that the construction period and quality cannot be guaranteed under the current outdoor construction condition.
In order to solve the problems, the invention discloses a site construction method of an external wall panel, which is applied to a construction site of a building, and comprises the following steps:
the method comprises the following steps that the external wall panel which is manufactured in a concrete member prefabricating factory in advance is transported to a construction site according to the quantity and specification required by construction drawings, wherein the external wall panel comprises a wall body base part with a first thickness, an external wall panel heat insulation layer with a second thickness and a heat insulation mortar layer with a third thickness, the first thickness is larger than the second thickness, the second thickness is larger than the third thickness, and the external wall panel heat insulation layer extends out of the wall body base part and extends for a preset length;
hoisting the external wall panel to a specified position of the construction drawing by using hoisting equipment, and welding reinforcing steel bars extending out of the upper and lower sections of the external wall panel with reinforcing steel bars extending out of other external wall panels;
respectively binding reinforcing steel bars in a longitudinal space between the left and right adjacent external wall panels and a transverse space between the upper and lower adjacent external wall panels;
carrying out formwork supporting on the inner side of the longitudinal space and the inner side of the transverse space;
and concreting in the longitudinal space and the transverse space, forming a column body and a beam body of a frame structure of the building after tamping, wherein the column body, the beam body and the external wall panel form a main structure body of the building.
Optionally, the external wall panel is manufactured by the following steps:
preparing a mould table;
presetting a side template and a steel bar on the template table according to the specified size, and presetting part or all of a wire box and a wire pipe;
performing first pouring by using pre-stirred concrete to form a wall body base part of the external wall panel, and performing sufficient tamping until the wall body base part meets a preset strength value;
erecting a formwork again on the upper part of the wall body foundation part, and arranging a steel bar mesh;
performing secondary pouring by using solid benzene particle concrete which is stirred in advance to form an external wall panel heat-insulating layer, wherein the external wall panel heat-insulating layer extends out of the wall body foundation part and is extended by a preset length;
performing primary steam curing on the wall foundation part poured with the external wall panel heat-insulating layer;
pouring mortar on the upper part of the heat-insulating layer of the external wall panel for the third time, and performing finishing treatment to form a heat-insulating mortar layer;
performing secondary steam curing on the wall foundation part poured with the external wall panel heat-insulating layer and the heat-insulating mortar layer;
and naturally curing the wall foundation part which is subjected to the secondary steam curing and provided with the heat-insulating mortar layer and the outer wall panel heat-insulating layer to finally form a complete outer wall panel finished product.
Optionally, the preparing mold table includes:
cleaning concrete residual blocks and dust on the mould table;
and spraying a layer of release agent on the upper surface of the die table.
Optionally, the curing time of the first steam curing is 4-5 hours.
Optionally, the curing time of the second steam curing is 4-5 hours.
Optionally, the method further comprises the steps of:
and spraying a two-dimensional code on the surface of the finished external wall panel, wherein the two-dimensional code comprises part or all of engineering name information, construction part information, design drawing information, quality inspector information and a generation date.
Optionally, the first thickness is 200 mm.
Optionally, the second thickness is 100-120 mm.
Optionally, the third thickness is 15-20 mm.
According to the technical scheme, the invention provides the field construction method of the external wall panel, which is applied to the construction site of a building, and specifically comprises the steps of transporting the external wall panel which is manufactured in a concrete member prefabricating factory in advance to the construction site according to the quantity and specification required by a construction drawing; hoisting the external wall panel to a specified position of a construction drawing by using hoisting equipment, and connecting the reinforcing steel bars extending out of the upper and lower sections of the external wall panel with the reinforcing steel bars extending out of other external wall panels; binding reinforcing steel bars in a longitudinal space formed between the left external wall panel and the right external wall panel and a transverse space formed between the left external wall panel and the right external wall panel which are adjacent; carrying out formwork support on the inner side of the longitudinal space and the inner side of the transverse space; concrete is poured in the longitudinal space and the transverse space, a column body and a beam body of a frame structure of the building are formed after the concrete is rammed, and the column body, the beam body and the external wall panel form a structural main body of the building. Because the external wall panel forms the main part of the structure main body and is completed in a concrete member prefabricating factory, the external wall panel can avoid the image of the environment to the maximum extent and solve the problem that the construction period and the quality can not be ensured under the condition of the prior open-air construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a field construction method of an external wall panel according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating a method for manufacturing an external wall panel according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a method for manufacturing another external wall panel according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Fig. 1 is a flowchart of a field construction method of an external wall panel according to an embodiment of the present application.
Referring to fig. 1, the field construction method of the external wall panel of the embodiment is used in a construction field of a building, and specifically includes the following steps:
and S11, transporting the prefabricated external wall panel to a construction site.
And particularly, the external wall panel is transported to a construction site of a corresponding building to be stored according to the requirements of construction drawings. The external wall panel refers to a concrete prefabricated member produced by a production line in a factory environment. The external wall panel comprises a wall foundation part with a first thickness, an external wall panel heat-insulating layer with a second thickness and a heat-insulating mortar layer with a third thickness.
The first thickness is 200 mm, the second thickness is 100 to 120 mm, and the third thickness is 15 to 20 mm. And the area of the heat-insulating layer formed by the heat-insulating layer of the external wall panel and the heat-insulating mortar layer is larger than that of the foundation part of the wall body, so that the edge of the heat-insulating layer extends to the preset length, and the extended preset length is 200-300 mm.
The outward extending heat-insulating layer is used for forming a transverse space or a longitudinal space between the wall foundation parts of the two external wall panels, and the outward extending heat-insulating layer forms a subsequent poured external formwork, so that construction procedures are saved, and the construction efficiency is improved.
And S12, hoisting and installing the external wall panel at the position specified in the construction drawing.
After the preparation of the external wall panel is finished, the external wall panel on the construction site is hoisted to the position specified by the construction drawing on the building and is fixed.
The upper and lower terminal surface of side fascia all has the reinforcing bar of many outburst terminal surfaces, therefore, fixed here means that the reinforcing bar that the lower terminal surface was outburst welds with the reinforcing bar that the up end of other side fascia of ground or below was outburst, can also weld the reinforcing bar that the up end was stretched out and the reinforcing bar that the lower terminal surface of other side fascia that is located its top was stretched out simultaneously.
And S13, binding reinforcing steel bars in the formed transverse space and the longitudinal space.
After the corresponding external wall panels are hoisted in place and fixed, a transverse space is formed between the upper external wall panel and the lower external wall panel, and a longitudinal space is formed between the left external wall panel and the right external wall panel which are adjacent. The transverse space is the position of the beam body of the building, and correspondingly, the longitudinal space is the position of the column body of the building.
And S14, performing formwork support on the inner sides of the transverse space and the longitudinal space respectively.
The heat insulating layer extends out of the wall foundation part, so that the extended heat insulating layer forms an outer template of the transverse space and the longitudinal space, and the transverse space and the longitudinal space can be sealed only by carrying out template support on the inner side so as to support the beam body and the column body.
And S15, pouring concrete in the transverse space and the longitudinal space.
After the supporting of the transverse space and the longitudinal space is finished, concrete can be poured into the transverse space and tamped, and the beam body and the column body of the building are formed after the tamping, the curing and the hardening. The beam, the column and the external wall panels connected thereto thereby constructing a construction body of the building.
According to the technical scheme, the on-site construction method of the external wall panel is applied to the construction site of a building, and specifically comprises the steps of transporting the external wall panel which is manufactured in advance in a concrete member prefabrication factory to the construction site according to the quantity and specification required by a construction drawing; hoisting the external wall panel to a specified position of a construction drawing by using hoisting equipment, and connecting the reinforcing steel bars extending out of the upper and lower sections of the external wall panel with the reinforcing steel bars extending out of other external wall panels; binding reinforcing steel bars in a longitudinal space formed between the left external wall panel and the right external wall panel and a transverse space formed between the left external wall panel and the right external wall panel which are adjacent; carrying out formwork support on the inner side of the longitudinal space and the inner side of the transverse space; concrete is poured in the longitudinal space and the transverse space, a column body and a beam body of a frame structure of the building are formed after the concrete is rammed, and the column body, the beam body and the external wall panel form a structural main body of the building. Because the external wall panel forms the main part of the structure main body and is completed in a concrete member prefabricating factory, the external wall panel can avoid the image of the environment to the maximum extent and solve the problem that the construction period and the quality can not be ensured under the condition of the prior open-air construction.
Fig. 2 is a flowchart of a method for manufacturing an external wall panel according to an embodiment of the present disclosure.
Referring to fig. 2, the method for manufacturing an external wall panel provided in this embodiment is applied to a factory building or an open space of a concrete member prefabricating factory, and is used for manufacturing an external wall panel at a correspondingly fixed place, and the specific manufacturing method includes the following steps:
and S21, preparing a mould table for bearing the external wall panel.
The mold table is constructed of a large steel material horizontally placed on the operation equipment installed in the manufacturing site, and can provide a horizontal plane having a large area so as to pre-place a formwork, a reinforcing bar, concrete, etc. thereon, and can be vertically or horizontally transferred on the operation equipment, and can be lifted or lowered on the operation equipment.
The step of preparing the mould table comprises the step of cleaning the mould table transferred to a preset position, namely cleaning residual concrete blocks cast last time and further cleaning dust; and then, spraying the cleaned mould platform, namely spraying a layer of release agent on the upper surface of the mould platform through spraying equipment, so that the finished outer wall body is easy to separate from the mould platform and is also used for ensuring the surface smoothness of the concrete member.
And S22, presetting side templates and reinforcing steel bars on the template table.
After the preparation of the formwork table is completed, according to the design drawing of the external wall panel, the side formwork is arranged according to the position and the size specified by the design drawing, and reinforcing steel bars are bound at the corresponding positions in the side formwork to form the cage-shaped reinforcing steel bar component. After the supporting of the side formwork and the binding of the reinforcing steel bars are finished, the wire boxes and the wire pipes are arranged according to the positions specified by the design drawing, and corresponding hole molds can be further arranged so as to form corresponding holes after the concrete pouring is finished.
The wire box and the wire pipe are used for laying switch equipment and electric wires after the outer wall board is installed, and the water pipe or the air pipe can be laid through the corresponding wire pipe.
And S23, pouring the concrete for preliminary mixing for the first time.
According to the thickness, the geometric dimension, the required concrete quantity, the slump and other parameters specified by a design drawing, the distributing machine is used for automatically and manually distributing the pre-stirred concrete in a space in a supported side template on a formwork table, and during distributing, the traveling speed of a hopper of the distributing machine can be adjusted according to the distributing thickness so as to complete distributing once, so that the production efficiency is improved.
The concrete on the mould platform is tamped after the distribution is finished, so that the structure of the concrete is compact, the wall body foundation part of the external wall panel with the thickness of 200 mm is finally formed, and the thickness can be adjusted according to actual needs or the change of design drawings.
And S24, formwork and arranging the steel bar net sheets on the wall foundation part again.
After the first pouring and tamping are completed to form the outer wall panel foundation part, the outer formwork is supported on the upper portion of the foundation part again, and the reinforcing mesh is preset, wherein a certain distance is kept between the reinforcing mesh and the surface of the outer wall panel foundation part, the distance is set to enable the reinforcing mesh to be located in the center of the subsequent pouring material, and in order to complete the index, the distance between the reinforcing mesh and the surface of the outer wall panel foundation part can be 50-60 mm.
And S25, performing secondary pouring by using solid benzene particle concrete.
The concrete is prepared by adding solid benzene particles into concrete mortar and mixing. After corresponding side templates are well supported and the reinforcing mesh is arranged, the solid benzene granular concrete which is stirred in advance is poured into the side templates on the upper portion of the external wall panel, and the reinforcing mesh is coated, so that the external wall heat-insulating layer is formed. And the second pouring thickness is 100-120 mm, namely the reinforcing mesh is coated on the core part.
The outer wall board heat-insulating layer extends out of the wall body foundation part and is extended by a preset length, for example, the length can be extended by 200-300 mm, so that an outer template is formed during field installation, the outer template installation procedure is saved, and the labor cost is saved.
And S26, performing primary steam curing on the wall foundation part provided with the outer wall heat-insulating layer.
And after the second pouring is finished, performing first steam curing on the wall foundation part poured with the outer wall heat-insulating layer. The curing time is 4-5 hours. The steam curing means that the wall body foundation part poured with the outer wall heat-insulating layer is sent into curing equipment and is placed in a wet steam coating environment with a preset temperature, and actual tests and summary show that the curing temperature can be set at 60 ℃, so that concrete can be well solidified.
And S27, performing third pouring by using mortar.
And after the first steam curing is finished, performing third pouring on the surface of the outer wall heat-insulating layer by using mortar by using the distributing machine, and performing finishing treatment to form a heat-insulating mortar layer with a smooth surface, wherein the thickness of the heat-insulating mortar layer is 15-20 mm.
And S28, performing secondary steam curing on the wall foundation part provided with the heat-insulating layer.
The heat-insulating layer refers to an outer wall heat-insulating layer and a mortar heat-insulating layer, and after the third pouring is finished, the second steam curing is carried out on the wall foundation part poured with the outer wall heat-insulating layer and the mortar heat-insulating layer. The curing time is 4-5 hours. Steam curing here also means that the wall base part, on which the outer wall insulation is cast, is fed into a curing device and is placed in a wet steam-coated environment at a predetermined temperature.
And S29, naturally curing the wall foundation part provided with the heat insulation layer.
The actual process is that all the poured semi-finished products of the external wall panel are sent to a finished product storage yard for natural maintenance, wherein the natural maintenance refers to that the semi-finished products of the external wall panel are naturally hardened and dried under the conditions of shading and keeping corresponding humidity, and then the finished external wall panel is finally formed.
According to the technical scheme, the manufacturing method of the external wall panel is applied to a concrete member prefabricating factory, and particularly prepares a mould platform for bearing the external wall panel; presetting a side template and a reinforcing steel bar on a mould table; performing first pouring by using concrete which is stirred in advance to form a wall body foundation part of the external wall panel; erecting a formwork again at the upper part of the wall foundation part, and arranging a steel bar mesh; performing secondary pouring by using solid benzene particle concrete which is stirred in advance to form an outer wall plate heat-insulating layer; performing primary steam curing on the wall foundation part poured with the external wall panel heat-insulating layer; pouring mortar on the upper part of the outer wallboard heat insulation layer for the third time, and performing finishing treatment to form a heat insulation mortar layer; performing secondary steam curing on the wall foundation part poured with the external wall plate heat-insulating layer and the heat-insulating mortar layer; and naturally curing the wall foundation part which is subjected to the secondary steam curing and is provided with the heat-insulating mortar layer and the heat-insulating layer of the external wall panel to finally form a complete finished product of the external wall panel. Because the external wall panel is finished in a concrete member prefabricating factory and the environment is controllable, the external wall panel can be manufactured with guaranteed quality and quantity and can be timely sent to a building site for installation after being finished, and therefore the problem that the construction period and the quality cannot be guaranteed under the existing open-air construction condition can be solved.
In addition, the present application further includes the following steps, as shown in fig. 3:
and S30, spraying the two-dimensional code on the surface of the finished outer wallboard.
The finished product of the external wall panel which is about to finish natural maintenance is cleaned, and the preset position of the cleaned finished product of the external wall panel is sprayed with a two-dimensional code by using code spraying equipment, wherein the two-dimensional code can comprise information such as engineering name information, construction part information, design drawing information, quality inspector information and production date, and can only comprise one part of the information.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The technical solutions provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. An on-site construction method of an external wall panel is applied to a construction site of a building, and is characterized by comprising the following steps:
the method comprises the following steps that the external wall panel which is manufactured in a concrete member prefabricating factory in advance is transported to a construction site according to the quantity and specification required by construction drawings, wherein the external wall panel comprises a wall body base part with a first thickness, an external wall panel heat insulation layer with a second thickness and a heat insulation mortar layer with a third thickness, the first thickness is larger than the second thickness, the second thickness is larger than the third thickness, and the external wall panel heat insulation layer extends out of the wall body base part and extends for a preset length;
hoisting the external wall panel to a specified position of the construction drawing by using hoisting equipment, and welding reinforcing steel bars extending out of the upper and lower sections of the external wall panel with reinforcing steel bars extending out of other external wall panels;
respectively binding reinforcing steel bars in a longitudinal space between the left and right adjacent external wall panels and a transverse space between the upper and lower adjacent external wall panels;
carrying out formwork supporting on the inner side of the longitudinal space and the inner side of the transverse space;
and concreting in the longitudinal space and the transverse space, forming a column body and a beam body of a frame structure of the building after tamping, wherein the column body, the beam body and the external wall panel form a main structure body of the building.
2. The site construction method of claim 1, wherein the external wall panel is manufactured by the steps of:
preparing a mould table;
presetting a side template and a steel bar on the template table according to the specified size, and presetting part or all of a wire box and a wire pipe;
performing first pouring by using pre-stirred concrete to form a wall body base part of the external wall panel, and performing sufficient tamping until the wall body base part meets a preset strength value;
erecting a formwork again on the upper part of the wall body foundation part, and arranging a steel bar mesh;
performing secondary pouring by using solid benzene particle concrete which is stirred in advance to form an external wall panel heat-insulating layer, wherein the external wall panel heat-insulating layer extends out of the wall body foundation part and is extended by a preset length;
performing primary steam curing on the wall foundation part poured with the external wall panel heat-insulating layer;
pouring mortar on the upper part of the heat-insulating layer of the external wall panel for the third time, and performing finishing treatment to form a heat-insulating mortar layer;
performing secondary steam curing on the wall foundation part poured with the external wall panel heat-insulating layer and the heat-insulating mortar layer;
and naturally curing the wall foundation part which is subjected to the secondary steam curing and provided with the heat-insulating mortar layer and the outer wall panel heat-insulating layer to finally form a complete outer wall panel finished product.
3. The method of construction in situ of claim 2, wherein said preparing a mold table comprises:
cleaning concrete residual blocks and dust on the mould table;
and spraying a layer of release agent on the upper surface of the die table.
4. The on-site construction method according to claim 2, wherein the curing time of the first steam curing is 4 to 5 hours.
5. The on-site construction method according to claim 2, wherein the curing time of the second steam curing is 4 to 5 hours.
6. The site construction method according to any one of claims 2 to 5, further comprising the steps of:
and spraying a two-dimensional code on the surface of the finished external wall panel, wherein the two-dimensional code comprises part or all of engineering name information, construction part information, design drawing information, quality inspector information and a generation date.
7. The method of claim 1, wherein the first thickness is 200 mm.
8. The method of claim 1, wherein the second thickness is 100 to 120 mm.
9. The method of claim 1, wherein the third thickness is 15 to 20 mm.
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| CN201910594713.8A CN110629928A (en) | 2019-07-03 | 2019-07-03 | Site construction method of external wall panel |
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| CN201910594713.8A CN110629928A (en) | 2019-07-03 | 2019-07-03 | Site construction method of external wall panel |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0392610A2 (en) * | 1989-04-10 | 1990-10-17 | Bruce Harrington | Wall units for constructing buildings |
| CN101818539A (en) * | 2010-06-04 | 2010-09-01 | 北京万科企业有限公司 | Assembled integral building and construction method thereof |
| CN102650152A (en) * | 2012-05-14 | 2012-08-29 | 中国十七冶集团有限公司 | Prefabricated sandwich heat-preservation heat insulation concrete external wall panel and fabrication method |
| CN203924471U (en) * | 2014-05-05 | 2014-11-05 | 任丘市永基建筑安装工程有限公司 | Precast concrete external wall panel |
| CN204252379U (en) * | 2014-11-17 | 2015-04-08 | 中国十七冶集团有限公司 | Super large Prefabricated exterior wall heat-insulation plate |
| CN109049294A (en) * | 2018-08-03 | 2018-12-21 | 上海住信住宅工业有限公司 | A kind of concrete prefabricated wallboard and its production technology |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0392610A2 (en) * | 1989-04-10 | 1990-10-17 | Bruce Harrington | Wall units for constructing buildings |
| CN101818539A (en) * | 2010-06-04 | 2010-09-01 | 北京万科企业有限公司 | Assembled integral building and construction method thereof |
| CN102650152A (en) * | 2012-05-14 | 2012-08-29 | 中国十七冶集团有限公司 | Prefabricated sandwich heat-preservation heat insulation concrete external wall panel and fabrication method |
| CN203924471U (en) * | 2014-05-05 | 2014-11-05 | 任丘市永基建筑安装工程有限公司 | Precast concrete external wall panel |
| CN204252379U (en) * | 2014-11-17 | 2015-04-08 | 中国十七冶集团有限公司 | Super large Prefabricated exterior wall heat-insulation plate |
| CN109049294A (en) * | 2018-08-03 | 2018-12-21 | 上海住信住宅工业有限公司 | A kind of concrete prefabricated wallboard and its production technology |
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