CN113235777A - Integrated heat insulation structure of exterior wall building and construction method - Google Patents
Integrated heat insulation structure of exterior wall building and construction method Download PDFInfo
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- CN113235777A CN113235777A CN202110479306.XA CN202110479306A CN113235777A CN 113235777 A CN113235777 A CN 113235777A CN 202110479306 A CN202110479306 A CN 202110479306A CN 113235777 A CN113235777 A CN 113235777A
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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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
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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
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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
- E04B1/7608—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 comprising a prefabricated insulating layer, disposed between two other layers or panels
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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
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- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Building Environments (AREA)
Abstract
The invention provides an integrated heat insulation structure of an exterior wall building and a construction method, belonging to the technical field of heat insulation walls, the integrated heat insulation structure of the exterior wall building comprises a shear wall, a concrete protection wall and an A-shaped heat insulation plate, a first reinforcing mesh and a second reinforcing mesh which are built by vertical bars and transverse bars are arranged on the opposite sides of the shear wall and the concrete protection wall, the first reinforcing mesh is perpendicular to the ground ring beam or the floor slab, the first reinforcing mesh is bound and fixed with the hidden columns reserved on the shear wall and the concrete protection wall through steel wires, the plurality of first reinforcing meshes are sequentially and uniformly distributed along the length direction of the shear wall and the concrete protection wall, the shear wall and the concrete protection wall are provided with the first reinforcing mesh and the second reinforcing mesh, so that instability caused by concentrated high-temperature failure of reinforcing bars can be avoided; because the concrete protective wall of the steel bar welding net is thickened, the fire resistance limit of the wall body is improved.
Description
Technical Field
The invention belongs to the technical field of heat insulation walls, and particularly relates to an integrated heat insulation structure of an exterior wall building and a construction method.
Background
The integrated heat-insulating structure of the outer wall building structure mainly comprises a double-sided steel wire mesh frame, a heat-insulating plate and self-compacting concrete. The composite heat insulation structure integrating heat insulation and maintenance is formed by pouring self-compacting concrete on two sides of a heat insulation layer consisting of an A-type heat insulation plate and a B-type heat insulation plate simultaneously, and an inner leaf structure stress and an outer leaf concrete protective layer are formed by connecting with a building shear wall steel bar and pouring concrete in situ.
The outer enclosure wall of the traditional civil cast-in-place concrete shear wall structure, frame-shear wall structure and frame-supported shear wall structure building is made of reinforced concrete, the outer wall heat insulation operation is taken as a special construction operation, and the traditional process is difficult to ensure the integrity, stability and safety of the outer wall heat insulation.
Disclosure of Invention
The embodiment of the invention provides an integrated heat insulation structure of an exterior wall building and a construction method, and aims to solve the problem that the integrity, stability and safety of the exterior wall heat insulation are difficult to guarantee in the existing exterior wall construction.
In view of the above problems, the technical solution proposed by the present invention is:
an integrated heat insulation structure of an external wall building comprises a shear wall, a concrete protection wall and an A-type heat insulation plate, wherein a first reinforcing mesh and a second reinforcing mesh which are built by vertical ribs and transverse ribs are arranged on one side, opposite to the shear wall and the concrete protection wall, of the shear wall, the first reinforcing mesh is perpendicular to a ground ring beam or a floor slab, the first reinforcing mesh is bound and fixed with hidden columns reserved in the shear wall and the concrete protection wall through steel wires, the first reinforcing meshes are sequentially and uniformly distributed along the length direction of the shear wall and the concrete protection wall, the second reinforcing mesh is bound and fixed between every two adjacent first reinforcing meshes through the steel wires, obliquely inserted reinforcing steel bars which are arranged in a crossed mode are arranged above the first reinforcing meshes which are arranged in a parallel mode, the obliquely inserted reinforcing steel bars are sequentially and uniformly distributed along the length direction of the first reinforcing meshes, and the oblique inserting steel bar passes through the steel wire with the fixed formation of first reinforcing bar net ligature is reserved installation space, it is equipped with a plurality of in the reservation installation space A type heated board, it is a plurality of A type heated board is followed the length direction of first reinforcing bar net arranges in proper order, and is a plurality of A type heated board is perpendicular setting with ground circle roof beam or floor, and is a plurality of A type heated board with ground circle roof beam or the overlap joint reinforcing bar that floor department reserved carries out the ligature fixedly.
As a preferred technical scheme, the heat insulation structure further comprises a cement mortar flat layer and a finish coat, wherein the cement mortar flat layer and the finish coat are sequentially poured and formed along one side of the concrete protection wall, and the proportion of cement to sand of the cement mortar flat layer is 1: 3.
as a preferred technical scheme of the invention, supporting and positioning blocks are arranged among the A-type heat-insulation plates, the shear wall and the concrete protection wall, the supporting and positioning blocks, reserved steel bars of the shear wall and the concrete protection wall are bound and fixed through the steel wires, and the supporting and positioning blocks are clamped with the A-type heat-insulation plates.
As a preferred technical scheme of the present invention, when the shear wall and the concrete protection wall contain stressed steel bars on the wall body opposite to the a-type insulation boards, the shear wall and the concrete protection wall are connected to the embedded columns of the shear wall and the concrete protection wall by anchoring with additional steel bars, and when the wall body opposite to the shear wall and the concrete protection wall and the a-type insulation boards does not contain stressed steel bars, the shear wall and the concrete protection wall are connected to the stressed steel bars of the wall body and the embedded columns by U-shaped tie bars.
As a preferred technical scheme of the invention, both sides of the a-type heat-insulation boards are provided with tongue-and-groove joints, every two adjacent a-type heat-insulation boards are connected through the tongue-and-groove joints, and the reserved installation space is located at both sides of the a-type heat-insulation boards and is filled with B-type heat-insulation boards.
On the other hand, the invention also provides a construction method of the integrated heat insulation structure of the exterior wall building, which comprises the following steps:
s1, typesetting the A-type heat-insulation board and the B-type heat-insulation board: determining a typesetting and dividing scheme according to the size of the outer wall to draw an installation layout, and calculating the using quantity of the A-type heat-insulation boards and the B-type heat-insulation boards of the whole building according to the installation layout;
s2, decomposing and processing the A-type heat-insulation plate and the B-type heat-insulation plate: decomposing, numbering and sampling the A-type heat-insulation board and the B-type heat-insulation board according to the arrangement condition of the A-type heat-insulation board and the B-type heat-insulation board in the installation layout, the detailed node diagram and the related technical rules combined with the construction joint reserving condition;
s3, the type A heat-insulation plate and the type B heat-insulation plate enter the field for acceptance inspection: the A-type heat-insulation plate and the B-type heat-insulation plate are required to enter a construction site in advance according to the construction progress, the A-type heat-insulation plate and the B-type heat-insulation plate are obliquely and vertically placed on two sides of the storage rack according to the principle that the A-type heat-insulation plate and the B-type heat-insulation plate are stored outside according to the prior use, the classification of installation layout drawings and the checking and acceptance of type numbers are strictly checked, and the A-type heat-insulation plate and the B-type heat-insulation plate are rechecked according to the specification;
s4, mounting a support positioning block: clamping the supporting and positioning blocks with special bayonets on the A-shaped heat-insulating plate at regular equal intervals;
s5, binding and installing the first reinforcing mesh and the second reinforcing mesh: preparing before construction according to a construction drawing and related technical regulation requirements, and building a first reinforcing mesh and a second reinforcing mesh on a ring beam or a floor slab;
s6, installing the A-type heat-insulation plate and the B-type heat-insulation plate: vertically transporting the A-type heat-insulation plate and the B-type heat-insulation plate to a construction area through manpower and in the direction of a lifting cage or a tower crane, and installing the A-type heat-insulation plate and the B-type heat-insulation plate according to the serial number sequence on the A-type heat-insulation plate and the B-type heat-insulation plate;
s7, template installation: installing templates on one side of the shear wall opposite to the concrete protection wall and two sides of the reserved installation space to form a self-compacting concrete pouring space in a surrounding manner;
s8, self-compacting concrete pouring: the self-compacting concrete enters a construction site according to the construction progress, the self-compacting concrete is poured into the self-compacting concrete pouring space after detection and filtration, and the cement mortar flat layer and the finish coat are sequentially constructed after pouring is finished;
and S9, repeating the steps S5-S8 to carry out construction on the upper floor in sequence.
As a preferred technical solution of the present invention, the step S5 of binding and installing the first mesh reinforcement and the second mesh reinforcement specifically includes:
s51, positioning and paying-off: marking position lines and control lines of wall bodies, hidden columns, door and window openings at corresponding positions of the ground ring beam, the floor slab or the wall surface by ink fountains;
s52, binding the first reinforcing mesh and the second reinforcing mesh: utilize vertical muscle and horizontal muscle to carry out the ligature through the steel wire in shear force wall and the relative one side of concrete protective wall and constitute first reinforcing bar net and second reinforcing bar net, vertical muscle should be perpendicular with ground collar tie beam or floor, and the horizontal muscle should be parallel with ground collar tie beam or floor, and a plurality of first reinforcing bar nets evenly arrange along the length direction of shear force wall and concrete protective wall in proper order, and the second reinforcing bar net passes through the steel wire ligature to be fixed every adjacent two between the first reinforcing bar net, the fixed oblique inserted steel bar of ligature is crossed to the steel wire through the steel wire simultaneously in the top of a plurality of first reinforcing bar nets.
As a preferred technical scheme of the invention, the installation of the A-type heat-insulation board and the B-type heat-insulation board in the step S6 specifically comprises
S61, transporting the A-type heat-insulation board and the B-type heat-insulation board: vertically transporting the A-type heat-insulation plate and the B-type heat-insulation plate to a construction area in the directions of manpower, a lifting cage or a tower crane, and placing the A-type heat-insulation plate in a reserved installation space;
s62, correcting the A-type heat-insulation plate: after the A-shaped heat insulation board is installed in place, the verticality of the A-shaped heat insulation board is measured and corrected, then temporary protection frames are erected on the two sides of the A-shaped heat insulation board by adopting steel pipes,
s63, fixing the A-type heat-insulating plate: the A-type heat-insulation plates are bound and connected by using lap-joint reinforcing steel bars reserved at the ground ring beams or the floor slabs, when the wall bodies of the shear wall and the concrete protection wall opposite to the A-type heat-insulation plates contain stressed reinforcing steel bars, the wall bodies of the shear wall and the concrete protection wall are connected with the embedded columns of the shear wall and the concrete protection wall in an anchoring manner through additional reinforcing steel bars, and when the wall bodies of the shear wall and the concrete protection wall opposite to the A-type heat-insulation plates do not contain stressed reinforcing steel bars, the wall bodies and the embedded columns are connected through U-shaped tie bars;
s64, supporting and positioning blocks for fixation: the supporting and positioning block is bound and fixed with the reserved steel bars of the shear wall and the concrete protection wall through the steel wires;
s65, filling the A-type heat-insulating plate: after the A-type heat-insulation boards are fixed, B-type heat-insulation boards are filled in the two sides of the reserved installation space, which are located on the A-type heat-insulation boards, are close to the shear wall, are lapped through additional steel bars according to non-seismic requirements, are close to the concrete protection wall, and are not lapped at the position of the separation seam of the first steel bar net, and are lapped through steel bar welding nets at the positions without the separation seams.
As a preferred technical solution of the present invention, the self-compacting concrete casting in step S8 specifically includes:
s81, detecting self-compacting concrete: after the self-compacting concrete enters a field, a special person is needed to detect the slump, the expansion degree and the expansion time of the self-compacting concrete of each vehicle;
s82, before pouring the self-compacting concrete: the particle size of the coarse aggregate of the self-compacting concrete is strictly controlled, a pump truck and a concrete conveying pipeline are cleaned before pouring, and a screen is arranged at a feed port of the pump truck for filtering during pouring;
s83, self-compacting concrete pouring: when the self-compacting concrete is poured, the slump, the expansion degree and the expansion time of the self-compacting concrete can meet related requirements, and the concrete without bleeding and segregation can be poured into a self-compacting concrete pouring space, a pouring point is arranged at an intersection part formed by a cross, a T or an L shape of a shear wall or a concrete protection wall and is unfolded, the self-compacting concrete starts to be poured from the corner part of the structure, the self-compacting concrete flows in a pyramid shape, when the horizontal distance of the flow is 20m, the self-compacting concrete needs to be moved to the structure part beyond 20m for pouring, and then the middle part of the two times of pouring is poured.
As a preferred technical scheme of the invention, the test instruments required by the slump, the expansion degree and the expansion time are a concrete slump cone and a hard bottom plate, the entering temperature of the self-compacting concrete pouring space is controlled to be 5-35 ℃, and the aperture range of the meshes of the screen is 20-25 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the A-type heat-insulation board and the B-type heat-insulation board are produced through advanced automatic production equipment of a factory, the construction site only needs to be sequentially installed according to the product serial number sequence, the cutting times are reduced on site, the technology is simple, the speed is high, and the total construction period is not influenced by the cross flow line operation with steel bar binding and template installation.
(2) The novel composite reinforced concrete shear wall building system is formed by integrating energy-saving technical measures into a shear wall, and the framework formed by combining an A-shaped heat-insulating plate and stressed steel bars of the shear wall is poured from two sides of the framework to play the dual functions of stress and heat insulation after self-compacting concrete is poured.
(3) The composite sandwich wallboard mainly comprises an A-type heat insulation board, a B-type heat insulation board, self-compacting concrete, a shear wall and a concrete protection wall, has the sound insulation performance of over 65dB, and can meet the sound insulation requirement of residential or public buildings on the indoor environment. The self-compacting concrete pouring layer with the thickness of at least 50mm on one side of the A-type heat-insulation plate and the B-type heat-insulation plate and all concrete members completely meet the requirement of an indoor energy storage index thermal inertia D value, and all parts are subjected to heat insulation treatment and subjected to condensation checking calculation, so that the indoor condensation phenomenon is avoided.
(4) When the outer wall is subjected to high temperature, the heat insulation plate can be isolated from the air by the closed concrete protective layer, so that the combustion, propagation and spread of the heat insulation layer and gas release are avoided or delayed.
(5) The shear wall and the concrete protection wall are provided with the first reinforcing mesh and the second reinforcing mesh, so that instability caused by concentrated high-temperature failure of reinforcing bars can be avoided; because the concrete protective wall of the steel bar welding net is thickened, the fire resistance limit of the wall body is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic structural diagram of an integrated thermal insulation structure for an exterior wall building, which is disclosed by the invention;
FIG. 2 is a cross-sectional view of an integrated thermal insulation structure for an exterior wall building disclosed by the invention;
FIG. 3 is a construction flow chart of the construction method of the integrated heat insulation structure of the exterior wall building disclosed by the invention.
Description of reference numerals: 1. a shear wall; 2. a concrete protective wall; 3. reserving an installation space; 4. a first reinforcing mesh; 41. a second reinforcing mesh; 5. obliquely inserting a steel bar; 6. a steel wire; 7. an A-type insulation board; 8. leveling cement mortar; 9. a finishing layer; 10. supporting a positioning block; 11. u-shaped lacing wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the referenced apparatus or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example one
Referring to the attached drawings 1-2, the invention provides a technical scheme: an integrated heat insulation structure of an external wall building comprises a shear wall 1, a concrete protection wall 2 and an A-shaped heat insulation plate 7, wherein a first reinforcing mesh 4 and a second reinforcing mesh 41 which are built by vertical bars and transverse bars are arranged on one side of the shear wall 1 opposite to one side of the concrete protection wall 2, the first reinforcing mesh 4 is vertically arranged with a ground girth or a floor slab, the first reinforcing mesh 4 is bound and fixed with hidden columns reserved on the shear wall 1 and the concrete protection wall 2 through steel wires 6, a plurality of first reinforcing meshes 4 are sequentially and uniformly distributed along the length direction of the shear wall 1 and the concrete protection wall 2, the second reinforcing mesh 41 is bound and fixed between every two adjacent first reinforcing meshes 4 through the steel wires 6, oblique insertion steel bars 5 which are arranged in a crossed mode are arranged above the two parallel first reinforcing meshes 4, the oblique insertion steel bars 5 are sequentially and uniformly distributed along the length direction of the first reinforcing meshes 4, and the oblique insertion steel bars 5 are bound and fixed with the first reinforcing meshes 4 through the steel wires 6 to form a reserved installation space 3, be equipped with a plurality of A type heated boards 7 in the reservation installation space 3, a plurality of A type heated boards 7 are arranged along the length direction of first reinforcing bar net 4 in proper order, and a plurality of A type heated boards 7 are perpendicular setting with ground collar tie roof beam or floor, and a plurality of A type heated boards 7 carry out the ligature with the overlap joint reinforcing bar that ground collar tie roof beam or floor department reserved and fix.
In this embodiment, when the outer wall receives high temperature effect, inclosed concrete protecting wall 2 can be isolated with A type heated board 7 and air, avoids or postpones the heat preservation structure burning, spreads and stretch and gaseous release. The shear wall 1 and the concrete protection wall 2 are provided with the first reinforcing mesh 4 and the second reinforcing mesh 41, so that instability caused by concentrated high-temperature failure of reinforcing meshes can be avoided; because the concrete protective wall 2 of the steel bar welding net is thickened, the fire resistance limit of the wall body is improved.
In the embodiment of the invention, the heat insulation structure further comprises a cement mortar flat layer 8 and a finish coat 9, wherein the cement mortar flat layer 8 and the finish coat 9 are sequentially poured and formed along one side of the concrete protection wall 2, and the ratio of cement to sand of the cement mortar flat layer 8 is 1: 3.
Referring to the attached drawing 2, in order to keep a certain distance between the a-type heat-insulating plate 7 and the shear wall 1 and the concrete protection wall 2, support positioning blocks 10 are arranged between the a-type heat-insulating plates 7 and the shear wall 1 and between the a-type heat-insulating plates and the concrete protection wall 2, the support positioning blocks 10 are fixedly bound with the reserved steel bars of the shear wall 1 and the concrete protection wall 2 through steel wires 6, and the support positioning blocks 10 are connected with the a plurality of a-type heat-insulating plates 7 in a clamping mode. In addition, the thickness of supporting locating piece 10 is 30mm, the width is 50mm and the height is 60mm, and the skew takes place for A type heated board 7 in the position of control A type heated board 7 that can be better.
In the embodiment of the invention, when the shear wall 1, the concrete protection wall 2 and the wall body opposite to the plurality of A-shaped heat insulation plates 7 contain stressed steel bars, the shear wall 1 and the concrete protection wall 2 are connected with the embedded columns through the additional steel bars in an anchoring manner, and when the wall body opposite to the shear wall 1, the concrete protection wall 2 and the plurality of A-shaped heat insulation plates 7 does not contain the stressed steel bars, the shear wall 1, the concrete protection wall 2 and the wall body are connected with the stressed steel bars of the embedded columns through the U-shaped tie bars 11.
Referring to the attached drawing 1, both sides of a plurality of a-type heat-insulating plates 7 are provided with tongue-and-groove joints, every two adjacent a-type heat-insulating plates 7 are connected through the tongue-and-groove joints, and both sides of the reserved installation space 3, which are located on the plurality of a-type heat-insulating plates 7, are filled with B-type heat-insulating plates. The A-type heat-insulation boards 7 are spliced by adopting the tongue-and-groove seams, so that the A-type heat-insulation boards 7 are greatly convenient to mount, and the construction progress is effectively improved.
Example two
Referring to fig. 3, another construction method for an integrated thermal insulation structure of an exterior wall building according to an embodiment of the present invention includes the following steps:
s1, typesetting the A-type heat-insulation board 7 and the B-type heat-insulation board: and determining a typesetting and dividing scheme according to the size of the outer wall to draw an installation layout, and calculating the using quantity of the A-type heat-insulation boards 7 and the B-type heat-insulation boards of the whole building according to the installation layout.
Specifically, after the installation layout drawing obtains the use number of the A-type heat-insulation boards 7 and the B-type heat-insulation boards of the whole building, each specification can be sequentially numbered in the installation layout drawing.
S2, decomposing and processing the A-type heat-insulating plate 7 and the B-type heat-insulating plate: and decomposing, numbering and sampling the A-type heat-insulation plate 7 and the B-type heat-insulation plate according to the arrangement condition of the A-type heat-insulation plate 7 and the B-type heat-insulation plate in the installation layout, the detailed node diagram and the related technical rules combined with the construction joint reserving condition.
Specifically, the a-type heat-insulating plate 7 and the B-type heat-insulating plate are not standard blocks, and when the a-type heat-insulating plate 7 and the B-type heat-insulating plate are completely the same, the same serial number can be adopted. The numbers of the A-type insulation board 7 and the B-type insulation board should be made to be uniform, and the A-type insulation board and the B-type insulation board can contain a plurality of information including building numbers, floors and positions. Besides filling the serial numbers of the A-type heat-insulation plate 7 and the B-type heat-insulation plate in the order, the serial numbers of the A-type heat-insulation plate 7 and the B-type heat-insulation plate are marked on the structural plane diagrams in the A-type heat-insulation plate 7, the B-type heat-insulation plate and the construction diagram at the same time, so that the serial numbers can be conveniently installed.
S3, the type A heat-insulating plate 7 and the type B heat-insulating plate are accepted in the field: a type heated board 7 and B type heated board should get into the job site in advance according to the construction progress, and the oblique vertical both sides of putting at the storage rack that lean on in the principle in the outside of leaving in according to earlier use when A type heated board 7 and B type heated board deposit, and the installation composing chart is categorised, the type number is examined and is accepted to the strict check to A type heated board 7 and B type heated board go on reinspecting according to the standard.
Specifically, the A-type heat-insulating plate 7 and the B-type heat-insulating plate are prevented from being shocked and trodden when being assembled and disassembled, and rain-proof, moisture-proof, wind-proof and fire-proof measures are taken when the storage time is longer.
S4, mounting the supporting and positioning block 10: and (3) clamping the supporting and positioning blocks 10 with special bayonets on the A-shaped heat-insulating plate 7 at regular equal intervals.
Specifically, the supporting and positioning blocks 10 should be arranged in order and distributed uniformly, and the distance between two adjacent supporting and positioning blocks is 400 mm.
S5, binding and installing the first reinforcing mesh 4 and the second reinforcing mesh 41: and preparing before construction according to construction drawings and related technical regulation requirements, and building the first reinforcing mesh 4 and the second reinforcing mesh 41 on the ring beam or the floor slab.
Further, the step S5 of binding and installing the first mesh reinforcement 4 and the second mesh reinforcement 41 specifically includes:
s51, positioning and paying-off: and marking the position lines and control lines of the wall body, the hidden columns, the door and window openings at the corresponding positions of the ground ring beam, the floor slab or the wall surface by ink fountains.
S52, binding the first mesh reinforcement 4 and the second mesh reinforcement 41: utilize vertical muscle and horizontal muscle to carry out the ligature through steel wire 6 at shear force wall 1 and the relative one side of concrete protective wall 2 and constitute first reinforcing bar net 4 and second reinforcing bar net 41, vertical muscle should be perpendicular with ground collar tie beam or floor, horizontal muscle should be parallel with ground collar tie beam or floor, a plurality of first reinforcing bar nets 4 evenly arrange in proper order along shear force wall 1 and concrete protective wall 2's length direction, second reinforcing bar net 41 is fixed between every two adjacent first reinforcing bar nets 4 through the steel wire 6 ligature, it fixes oblique inserting reinforcing bar 5 to be the cross ligature through steel wire 6 in the top of a plurality of first reinforcing bar nets 4 simultaneously.
S6, installing the A-type heat-insulation plate 7 and the B-type heat-insulation plate: a type insulation board 7 and a type insulation board B are vertically transported to a construction area through the direction of manpower, a lifting cage or a tower crane, and are installed according to the serial number sequence on the type insulation board A7 and the type insulation board B.
Further, the installation of the a-type heat insulation board 7 and the B-type heat insulation board in the step S6 specifically includes:
s61, transporting the A-type heat-insulation plate 7 and the B-type heat-insulation plate: a type insulation board 7 and a B type insulation board are vertically transported to a construction area through the direction of manpower, a lifting cage or a tower crane, and the A type insulation board 7 is placed in the reserved installation space 3.
Specifically, the installation of the A-shaped heat-insulation board 7 is carried out in a mode of sealing and connecting in sequence from one to another, the light A-shaped heat-insulation board 7 can be directly installed in place in an artificial mode, the heavy A-shaped heat-insulation board 7 can be directly installed in place in the vertical hoisting process, the A-shaped heat-insulation board 7 is finely adjusted after being installed in place, upper wood should be laid on the A-shaped heat-insulation board, then the A-shaped heat-insulation board is knocked by an iron hammer, and the first reinforcing mesh 4 cannot be directly pried or knocked.
S62, correcting the A-type heat-insulation plate 7: after the A-type heat-insulation plate 7 is installed in place, the verticality of the A-type heat-insulation plate is measured and corrected, and then temporary protection frames are erected on two sides of the A-type heat-insulation plate 7 through steel pipes.
Specifically, the two sides of the A-type heat-insulation plate 7 are supported by temporary protective frames, so that the stability of the A-type heat-insulation plate 7 is ensured.
S63, fixing the A-type heat-insulating plate 7: the lap-joint reinforcing bars that A type heated board 7 should be reserved earlier ground collar tie or floor department carry out the ligature connection, when containing the atress reinforcing bar on shear force wall 1 and concrete guard wall 2 and the wall body that a plurality of A type heated boards 7 are relative, through the hidden post anchor connection of additional reinforcing bar with shear force wall 1 and concrete guard wall 2, when not containing the atress reinforcing bar on shear force wall 1 and concrete guard wall 2 and the wall body that a plurality of A type heated boards 7 are relative, be connected with the atress reinforcing bar of wall body and hidden post through U-shaped lacing wire 11.
S64, fixing the supporting and positioning block 10: the supporting and positioning blocks 10 are bound and fixed with the reserved steel bars of the shear wall 1 and the concrete protection wall 2 through the steel wires 6.
S65, filling the A-type heat-insulating plate 7: after the A-type heat-insulation boards 7 are fixed, B-type heat-insulation boards are filled in the two sides of the reserved installation space 3, which are located on the A-type heat-insulation boards 7, the B-type heat-insulation boards are close to the shear wall 1 and are lapped according to non-seismic requirements through additional steel bars, the B-type heat-insulation boards are close to the concrete protection wall 2, lapping is not carried out on the positions of the separation seams of the first steel bar net 4, and steel bar welding net lapping is adopted in the positions without the separation seams.
S7, template installation: and installing templates on one side of the shear wall 1 opposite to the concrete protection wall 2 and two sides of the reserved installation space 3 to form a self-compacting concrete pouring space in a surrounding manner.
Specifically, mortar should be laid on the bottom of the large formwork when the formwork is in place or mortar joints should be hooked after the formwork is in place, sponge sealing strips or adhesive sealing tapes should be filled in the splicing joint parts of all the formworks, vent holes should be reserved at the positions close to the lower corner of a window opening, the top of a windowsill and the like when the formwork is built, the self-compacting concrete can be conveniently observed in time when being poured, and the self-compacting concrete is immediately plugged by using wood wedges after being filled; and moreover, a high cleaning opening is reserved at the bottom of the template close to the concrete protective wall 2, and after the wall penetrating bolt is fixed, the cleaning opening is cleaned and sealed by cleaning fragments of the A-type heat insulation plate 7 and the B-type heat insulation plate in the template through a dust collector.
S8, self-compacting concrete pouring: self-compaction concrete gets into the job site according to the construction progress, and self-compaction concrete should water in the self-compaction concrete placement space after filtering through detecting, waters and finishes the back and is under construction to cement mortar flat bed 8 and finish coat 9 in proper order.
The self-compacting concrete pouring in the step S8 specifically includes:
s81, detecting self-compacting concrete: after the self-compacting concrete enters a field, a special person is needed to detect the slump, the expansion degree and the expansion time of the self-compacting concrete of each vehicle.
Preferably, the test instruments required for slump, spread and spread time are a concrete slump cone and a rigid backing plate. The slump cone should meet the requirements of concrete slump constant instrument (JG/T248-2009). The bottom plate is a hard and non-absorbent smooth square flat plate, the side length is 1000mm, and the maximum deflection is not more than 3 mm. Concentric circles of 200mm, 300mm, 500mm, 600mm, 700mm, and 800mm in the center position and diameter of the slump cone are marked on the surface of the plate. The self-compacting concrete has a slump of 260-280 mm and an expansion of 700-750 mm.
S82, before pouring the self-compacting concrete: the self-compacting concrete should strictly control the coarse aggregate particle size, should wash pump truck and concrete conveying pipeline before pouring, should set up the screen cloth at the pump truck feed inlet and filter when pouring.
Preferably, the mesh aperture of the screen is in the range of 20mm to 25 mm. The maximum particle size of the coarse aggregate during filtering is not more than 10 mm.
S83, self-compacting concrete pouring: when the self-compacting concrete is poured, the slump, the expansion degree and the expansion time of the self-compacting concrete can meet relevant requirements, and the concrete without bleeding and segregation can be poured into a self-compacting concrete pouring space, a pouring point is arranged at an intersection part formed by the shear wall 1 or the concrete protective wall 2 in a cross shape, a T shape or an L shape and is unfolded, the self-compacting concrete starts to be poured from the corner part of the structure, the self-compacting concrete flows in a pyramid shape, when the flowing horizontal distance is 20 meters, the self-compacting concrete needs to be moved to a structure part beyond 20 meters for pouring, and then the middle part of the two times of pouring is poured.
Preferably, the temperature of the self-compacting concrete pouring space is controlled to be 5-35 ℃. Furthermore, when the self-compaction performance of the concrete can not meet the requirement, a proper amount of additives can be added into the concrete mixing and transporting vehicle, and the roller is rapidly rotated and stirred to adjust the self-compaction performance.
It should be noted that when the self-compacting concrete is poured and poured, the self-compacting concrete does not directly fall into the self-compacting concrete pouring space after falling from the mouth of the conveying pipe, especially into the formwork with a thinner outer section; the pressure of adjustable pump truck avoids pressure too big, and it is too big to produce the impact force to set up funnel or baffle at the template upper shed of A type heated board 7 and B type heated board, make the concrete get into from closely knit concrete placement space with slower speed.
At any section of the A-type heat-insulation plate 7 and the B-type heat-insulation plate, the height difference h of the self-compacting concrete liquid level generated by the resistance and the flow speed of the concrete on the two sides is not larger than 400 mm. In the process of pouring the self-compacting concrete, a specially-assigned person is required to observe the liquid level of the self-compacting concrete with each section, and the observation can be carried out in modes of flashlight irradiation, inserted bar measurement and the like. When the liquid level difference of the self-compacting concrete at a certain section is close to 400mm, the self-compacting concrete is immediately poured at the point.
When self-compacting concrete in the self-compacting concrete pouring space is poured, auxiliary vibration can be carried out on the upper edge of the template and the outer side of the template in a point vibration mode or in a skin hammer knocking mode and the like. When the self-compacting concrete is partially blocked, the self-compacting concrete can be inserted and tamped by using a steel pipe; for the embedded columns with complex steel bar structures, the middle parts of the A-type heat-insulation plate 7 and the B-type heat-insulation plate, a proper amount of concrete at the position of the protective layer can be inserted and tamped by using steel pipes during pouring, and the obliquely inserted steel bars 5, the A-type heat-insulation plate 7 and the B-type heat-insulation plate cannot be touched during inserting and tamping.
And S9, repeating the steps S5-S8 to carry out construction on the upper floor in sequence.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An integrated heat insulation structure of an external wall building is characterized in that a heat insulation framework comprises a shear wall, a concrete protection wall and an A-shaped heat insulation plate, wherein a first reinforcing mesh and a second reinforcing mesh which are built by vertical ribs and transverse ribs are arranged on one side, opposite to the shear wall and the concrete protection wall, of the shear wall, the first reinforcing mesh is perpendicular to a ground ring beam or a floor slab, the first reinforcing mesh is bound and fixed with hidden columns reserved in the shear wall and the concrete protection wall through steel wires, the first reinforcing meshes are sequentially and uniformly distributed along the length direction of the shear wall and the concrete protection wall, the second reinforcing mesh is bound and fixed between every two adjacent first reinforcing meshes through the steel wires, obliquely inserted reinforcing steel bars which are arranged in a crossed mode are arranged above the two parallelly arranged first reinforcing meshes, and the obliquely inserted reinforcing steel bars are sequentially and uniformly distributed along the length direction of the first reinforcing meshes, and the oblique inserting steel bar passes through the steel wire with the fixed formation of first reinforcing bar net ligature is reserved installation space, it is equipped with a plurality of in the reservation installation space A type heated board, it is a plurality of A type heated board is followed the length direction of first reinforcing bar net arranges in proper order, and is a plurality of A type heated board is perpendicular setting with ground circle roof beam or floor, and is a plurality of A type heated board with ground circle roof beam or the overlap joint reinforcing bar that floor department reserved carries out the ligature fixedly.
2. The integrated heat-insulating structure of the exterior wall and building of claim 1, further comprising a cement mortar flat layer and a finish coat, wherein the cement mortar flat layer and the finish coat are sequentially cast and molded along one side of the concrete protective wall, and the ratio of cement to sand of the cement mortar flat layer is 1: 3.
3. The integrated heat-insulating structure of an external wall building according to claim 1, wherein a supporting and positioning block is arranged between the A-type heat-insulating plates and the shear wall and the concrete protection wall, the supporting and positioning block is bound and fixed with the reserved steel bars of the shear wall and the concrete protection wall through the steel wires, and the supporting and positioning block is clamped with the A-type heat-insulating plates.
4. The integrated thermal insulation structure for the exterior wall building according to claim 1, wherein when the shear wall and the concrete protection wall opposite to the a-type thermal insulation boards contain stressed steel bars, the shear wall and the embedded columns of the concrete protection wall are connected through additional steel bars in an anchoring manner, and when the shear wall and the concrete protection wall opposite to the a-type thermal insulation boards do not contain stressed steel bars, the shear wall and the concrete protection wall are connected with the stressed steel bars of the wall body and the embedded columns through U-shaped tie bars.
5. An exterior wall and building integrated heat preservation structure according to claim 1, wherein both sides of the A-type heat preservation plates are provided with tongue-and-groove joints, every two adjacent A-type heat preservation plates are connected through the tongue-and-groove joints, and the reserved installation space is located at both sides of the A-type heat preservation plates and is filled with B-type heat preservation plates.
6. A construction method of an integrated heat insulation structure of an exterior wall building is applied to the integrated heat insulation structure of the exterior wall building as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps:
s1, typesetting the A-type heat-insulation board and the B-type heat-insulation board: determining a typesetting and dividing scheme according to the size of the outer wall to draw an installation layout, and calculating the using quantity of the A-type heat-insulation boards and the B-type heat-insulation boards of the whole building according to the installation layout;
s2, decomposing and processing the A-type heat-insulation plate and the B-type heat-insulation plate: decomposing, numbering and sampling the A-type heat-insulation board and the B-type heat-insulation board according to the arrangement condition of the A-type heat-insulation board and the B-type heat-insulation board in the installation layout, the detailed node diagram and the related technical rules combined with the construction joint reserving condition;
s3, the type A heat-insulation plate and the type B heat-insulation plate enter the field for acceptance inspection: the A-type heat-insulation plate and the B-type heat-insulation plate are required to enter a construction site in advance according to the construction progress, the A-type heat-insulation plate and the B-type heat-insulation plate are obliquely and vertically placed on two sides of the storage rack according to the principle that the A-type heat-insulation plate and the B-type heat-insulation plate are stored outside according to the prior use, the classification of installation layout drawings and the checking and acceptance of type numbers are strictly checked, and the A-type heat-insulation plate and the B-type heat-insulation plate are rechecked according to the specification;
s4, mounting a support positioning block: clamping the supporting and positioning blocks with special bayonets on the A-shaped heat-insulating plate at regular equal intervals;
s5, binding and installing the first reinforcing mesh and the second reinforcing mesh: preparing before construction according to a construction drawing and related technical regulation requirements, and building a first reinforcing mesh and a second reinforcing mesh on a ring beam or a floor slab;
s6, installing the A-type heat-insulation plate and the B-type heat-insulation plate: vertically transporting the A-type heat-insulation plate and the B-type heat-insulation plate to a construction area through manpower and in the direction of a lifting cage or a tower crane, and installing the A-type heat-insulation plate and the B-type heat-insulation plate according to the serial number sequence on the A-type heat-insulation plate and the B-type heat-insulation plate;
s7, template installation: installing templates on one side of the shear wall opposite to the concrete protection wall and two sides of the reserved installation space to form a self-compacting concrete pouring space in a surrounding manner;
s8, self-compacting concrete pouring: the self-compacting concrete enters a construction site according to the construction progress, the self-compacting concrete is poured into the self-compacting concrete pouring space after detection and filtration, and the cement mortar flat layer and the finish coat are sequentially constructed after pouring is finished;
and S9, repeating the steps S5-S8 to carry out construction on the upper floor in sequence.
7. The construction method of an integrated thermal insulation structure of an exterior wall building according to claim 6, wherein the step S5 of binding and installing the first reinforcing mesh and the second reinforcing mesh specifically comprises:
s51, positioning and paying-off: marking position lines and control lines of wall bodies, hidden columns, door and window openings at corresponding positions of the ground ring beam, the floor slab or the wall surface by ink fountains;
s52, binding the first reinforcing mesh and the second reinforcing mesh: utilize vertical muscle and horizontal muscle to carry out the ligature through the steel wire in shear force wall and the relative one side of concrete protective wall and constitute first reinforcing bar net and second reinforcing bar net, vertical muscle should be perpendicular with ground collar tie beam or floor, and the horizontal muscle should be parallel with ground collar tie beam or floor, and a plurality of first reinforcing bar nets evenly arrange along the length direction of shear force wall and concrete protective wall in proper order, and the second reinforcing bar net passes through the steel wire ligature to be fixed every adjacent two between the first reinforcing bar net, the fixed oblique inserted steel bar of ligature is crossed to the steel wire through the steel wire simultaneously in the top of a plurality of first reinforcing bar nets.
8. The construction method of the integrated heat insulation structure of the exterior wall building according to claim 6, wherein the step s6 of installing the A-type heat insulation board and the B-type heat insulation board specifically comprises:
s61, transporting the A-type heat-insulation board and the B-type heat-insulation board: vertically transporting the A-type heat-insulation plate and the B-type heat-insulation plate to a construction area in the directions of manpower, a lifting cage or a tower crane, and placing the A-type heat-insulation plate in a reserved installation space;
s62, correcting the A-type heat-insulation plate: after the A-shaped heat insulation board is installed in place, the verticality of the A-shaped heat insulation board is measured and corrected, then temporary protection frames are erected on the two sides of the A-shaped heat insulation board by adopting steel pipes,
s63, fixing the A-type heat-insulating plate: the A-type heat-insulation plates are bound and connected by using lap-joint reinforcing steel bars reserved at the ground ring beams or the floor slabs, when the wall bodies of the shear wall and the concrete protection wall opposite to the A-type heat-insulation plates contain stressed reinforcing steel bars, the wall bodies of the shear wall and the concrete protection wall are connected with the embedded columns of the shear wall and the concrete protection wall in an anchoring manner through additional reinforcing steel bars, and when the wall bodies of the shear wall and the concrete protection wall opposite to the A-type heat-insulation plates do not contain stressed reinforcing steel bars, the wall bodies and the embedded columns are connected through U-shaped tie bars;
s64, supporting and positioning blocks for fixation: the supporting and positioning block is bound and fixed with the reserved steel bars of the shear wall and the concrete protection wall through the steel wires;
s65, filling the A-type heat-insulating plate: after the A-type heat-insulation boards are fixed, B-type heat-insulation boards are filled in the two sides of the reserved installation space, which are located on the A-type heat-insulation boards, are close to the shear wall, are lapped through additional steel bars according to non-seismic requirements, are close to the concrete protection wall, and are not lapped at the position of the separation seam of the first steel bar net, and are lapped through steel bar welding nets at the positions without the separation seams.
9. The construction method of an integrated thermal insulation structure of an external wall building as claimed in claim 6, wherein the self-compacting concrete casting in the step s8 specifically comprises:
s81, detecting self-compacting concrete: after the self-compacting concrete enters a field, a special person is needed to detect the slump, the expansion degree and the expansion time of the self-compacting concrete of each vehicle;
s82, before pouring the self-compacting concrete: the particle size of the coarse aggregate of the self-compacting concrete is strictly controlled, a pump truck and a concrete conveying pipeline are cleaned before pouring, and a screen is arranged at a feed port of the pump truck for filtering during pouring;
s83, self-compacting concrete pouring: when the self-compacting concrete is poured, the slump, the expansion degree and the expansion time of the self-compacting concrete can meet related requirements, and the concrete without bleeding and segregation can be poured into a self-compacting concrete pouring space, a pouring point is arranged at an intersection part formed by a cross, a T or an L shape of a shear wall or a concrete protection wall and is unfolded, the self-compacting concrete starts to be poured from the corner part of the structure, the self-compacting concrete flows in a pyramid shape, when the horizontal distance of the flow is 20m, the self-compacting concrete needs to be moved to the structure part beyond 20m for pouring, and then the middle part of the two times of pouring is poured.
10. The construction method of an integrated thermal insulation structure of an exterior wall building as claimed in claim 9, wherein the test instruments required for slump, expansion and expansion time are a concrete slump cone and a hard bottom plate, the entering temperature of the self-compacting concrete pouring space is controlled to be 5-35 ℃, and the mesh aperture range of the screen mesh is 20-25 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114016744A (en) * | 2021-11-04 | 2022-02-08 | 南京工业职业技术大学 | External wall insulation construction equipment based on cast-in-place wall body of concrete |
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Application publication date: 20210810 |