CN106499093B - A kind of exterior wall attachment structure and its construction method - Google Patents
A kind of exterior wall attachment structure and its construction method Download PDFInfo
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- CN106499093B CN106499093B CN201611180470.6A CN201611180470A CN106499093B CN 106499093 B CN106499093 B CN 106499093B CN 201611180470 A CN201611180470 A CN 201611180470A CN 106499093 B CN106499093 B CN 106499093B
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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
Abstract
The invention discloses a kind of exterior wall attachment structures, including at least by the first wall, the second wall and being folded in the precast wall body that supporter and insulating layer between the two constitute, there are distances for the supporter bottom and the bottom of the first wall and the second wall to construct the concrete cast-in-situ space being full of between the first wall and the second wall, and at least part in the cast-in-place space is built into the edge of precast wall body；It includes in keyway uniformly at intervals that the keyway arrangements that planar configuration goes out are connected between the supporter and cast-in-place space；The filling concrete channel of cast-in-place space connection；The exterior wall attachment structure includes the cast-in-place space that filling concrete space between adjacent two precast wall body and two sides precast wall body are built into edge, the filling concrete space is connected to the cast-in-place space for being built into edge, thus the connection structure integral by concreting.The invention enables the bonding strengths between the globality and wall of installation exterior wall to greatly improve.
Description
Technical field
The present invention relates to building engineering field, especially a kind of exterior wall attachment structure and the exterior wall attachment structure
Construction method.
Background technique
The wall body structure of existing building includes the spaced wall of two panels, is placed with transverse and longitudinal between two panels wall and interlocks
Multiple tracks reinforcing bar, then with concreting at complete precast wall body structure.Two sides wall body structure when combination forms node,
It needs to bind the transverse steel of the two, then pour, still, since the concrete of node is after-pouring, this wall connects
The globality for connecing node is poor, causes intensity lower.If also, wall bottom is not in same plane, it is also necessary to fill mortar
It smoothes out, the associativity of separation layer and concrete that mortar generates is poor, and intensity is caused to decline.In addition, for prefabricated wall body structure
For itself, there is also following defects:
1, the intensity of wall body structure is poor；
2, need to fill the space between two panels wall when cast in situs, it is time-consuming in process, and on-site construction time is nervous,
Process is simple and crude, pours the wall quality built up and is difficult to ensure；
3, due to the problem of pouring material itself or construction technology the problem of, concrete is easy to produce in casting process
Bubble is not easy to be discharged, and will form many pits after the completion of pouring, influences precast wall body final product quality.
4, there are certain unstability for the material and technique for structure of being in the milk, time-consuming and laborious, intensity, globality, safety
Etc. poor.
In view of this, the present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that a kind of exterior wall attachment structure is overcome the deficiencies of the prior art and provide,
Globality and bonding strength after improving wall assembly.
On the other hand, the present invention also provides the construction methods for realizing the exterior wall attachment structure.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of exterior wall attachment structure, including at least by the first wall, the second wall and it is folded in the first wall and
The precast wall body that supporter between two walls and insulating layer are constituted, the supporter bottom and the first wall and the second wall
There are distances for bottom to construct the concrete cast-in-situ space being full of between the first wall and the second wall, and the cast-in-place space
At least part is built into the edge of precast wall body；Connection planar configuration between the supporter and cast-in-place space goes out keyway
Structure, keyway arrangements include the keyway in uniformly at intervals, form plane boss between adjacent keyway；Quilt is gone back in the precast wall body
Construct the filling concrete channel being connected to cast-in-place space；The exterior wall attachment structure includes between adjacent two precast wall body
Filling concrete space and two sides precast wall body be built into the cast-in-place space at edge, the filling concrete space and quilt
It constructs and is connected in the cast-in-place space at edge, thus the connection structure integral by concreting.
Further, in above-mentioned exterior wall attachment structure, the bottom of the precast wall body is equipped with height adjustment device, uses
In the height of adjustment precast wall body.
Further, supporting element is equipped in above-mentioned exterior wall attachment structure, in the cast-in-place space to be used for cast-in-place sky
Between be supported.
Further, in above-mentioned exterior wall attachment structure, supporter is third wall, the lower section of third wall and first
There are distances for the lower edge of wall and the second wall to construct cast-in-place space, and third wall is also constructed out to be connected with cast-in-place space
Logical filling concrete channel；At least part in the cast-in-place space is located at the edge of precast wall body；Third wall with it is cast-in-place
Connection planar configuration between space goes out keyway arrangements, and keyway arrangements include the shape between adjacent keyway in keyway uniformly at intervals
At plane boss.
Further, in above-mentioned exterior wall attachment structure, the supporting element includes multiple be equipped in cast-in-place space
Leg column, the upper and lower ends of supporting leg column are bonded with keyway arrangements lower surface and/or following with the first wall and the second wall respectively
Edge is concordant.
Further, in above-mentioned exterior wall attachment structure, the height adjustment device includes the supporting leg column, supporting leg column
Bottom be equipped with leveling bolt.
Further, in above-mentioned exterior wall attachment structure, vertically disposed support column, shape are equipped in the third wall
The support colonnade being parallel to each other at multiple tracks；At least part mutual dislocation is arranged between support column in adjacent twice support colonnade
Cloth.
Further, in above-mentioned exterior wall attachment structure, the support column bottom end and first of colonnade is at least partially supported
The bottom margin of wall and the second wall is concordantly using the supporting element as cast-in-place space, and the support column bottom is equipped with leveling
Bolt is using the height adjustment device as the height for adjusting precast wall body.
Further, in above-mentioned exterior wall attachment structure, the outer surface of the first wall and/or the second wall is equipped with support
Bracket, support bracket are the block equipped with cross through hole.
Further, the through-hole for exhaust is equipped in above-mentioned exterior wall attachment structure, in the third wall, this is logical
Hole is inclined hole and the outside for being conducting to the first wall or the second wall, enables concrete full of entire concrete cast-in-situ anchorage zone
The space in domain.
Further, in above-mentioned exterior wall attachment structure, there are lack for the lower end of first wall and/or the second wall
Mouthful, supporting module when for pouring at the scene.
Further, in above-mentioned exterior wall attachment structure, the supporting leg column with third wall is prefabricated is integral.
On the other hand, the present invention provides a kind of construction methods of exterior wall attachment structure, including
Construct supporter in advance in precast wall body, there are spaces with the bottom of precast wall body, to construct injection
Concrete cast-in-situ space between one wall and the second wall, at least part of cast-in-place space are built into the side of precast wall body
Edge, and the connection plane between supporter and cast-in-place space constructs keyway arrangements in advance, keyway arrangements include in uniformly at intervals
Keyway, plane boss is formed between adjacent keyway；
When cast in situs, the transverse steel at two panels precast wall body edge is bound, filling concrete space, coagulation are constructed
Native reperfusion space is connected to the cast-in-place space at the edge for being built into precast wall body, then in the open surface in filling concrete space
Formwork；
The concrete perfusion into filling concrete space, full of filling concrete space and the side for being built into precast wall body
The cast-in-place space of edge, so that two panels precast wall body be made to form one in bottom.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
The cast-in-place space and perfusion channel that interior wall attachment structure of the present invention is reserved by supporting element and precast wall body
Every wall is poured integrally, the globality and bonding strength of interior wall attachment structure are improved, and assists there are keyway arrangements, this
Kind forms concaveconvex structure between supporter and cast-in-place space and the installation difficulty of wall top and the bottom is reduced, stable connection
It is strengthened；
Support construction in supporting element of the present invention improves in conjunction with height adjustment device to the support strength of precast wall body
It can be used for the height adjustment to precast wall body simultaneously；Structure composition is reduced while guaranteeing its functional strength, reduces construction
Cost；
Construction method provided by the invention is for realizing above-mentioned interior wall attachment structure.
Detailed description of the invention
Fig. 1 is the schematic diagram of a specific embodiment of exterior wall attachment structure of the present invention；
Fig. 2 is the top view of exterior wall attachment structure shown in Fig. 1；
Fig. 3 is the partial view of keyway arrangements shown in Fig. 1；
Fig. 4 is the side view of exterior wall attachment structure shown in Fig. 1；
Fig. 5 is the schematic diagram of another embodiment of exterior wall attachment structure of the present invention；
Fig. 6 is the structural schematic diagram of supporting leg column shown in Fig. 1；
In figure:
1, the first wall；11, filling concrete space；12, reinforcing bar；13, tie hoop；14, insulating layer；15, spiral shell is leveled
Bolt；2, the second wall；3, third wall；31, filling concrete channel；32, through-hole；4, cast-in-place space；5, keyway arrangements；51,
Keyway；52, boss；6, support column；7, supporting leg column；8, support bracket；9, template；
Specific embodiment
In the following with reference to the drawings and specific embodiments, the invention will be further described, to help the contents of the present invention are understood.
As shown in Figure 1-3, a kind of exterior wall attachment structure, including precast wall body, wherein every precast wall body mainly by
First wall 1, the second wall 2 and the supporter being folded between the first wall 1 and the second wall 2 and 14 groups of insulating layer
At；First wall 1 is siphonal lobe wall, and the second wall 2 is internal lobe wall, and the height of the second wall 2 is lower than the height of the first wall 1
Degree, can form step, for the top plate of indoor wall to be overlapped on above in this way.Supporter and the fitting of insulating layer 14 form group
Structure is closed, can also be connected between the two by connector to improve fastness；14 height of insulating layer and the first wall 1 basic one
It causes and is clamped between the first wall 1 and supporter；There are one for supporter bottom and the bottom of the first wall 1 and the second wall 2
Set a distance, it is existing to construct the concrete cast-in-situ space 4 for the entire bottom space being full of between the first wall 1 and the second wall 2
It pours and is at least additionally provided with longitudinal reinforcement in space 4, therefore concrete cast-in-situ can be become again and anchor space, the cast-in-place space 4 is excellent
Selecting its top is plane, and the connection planar configuration between supporter and cast-in-place space 4 goes out keyway arrangements 5, and keyway arrangements 5 include being in
Keyway 51 uniformly at intervals forms plane boss 52 between adjacent keyway 51；Wherein the cross section of keyway 51 is isosceles trapezoid shape,
Angle is preferably 120 ° between 51 cell wall of keyway and slot bottom；The keyway 51 is made of steel plate.
At least part in concrete cast-in-situ space 4 is built into the edge of precast wall body；When two panels precast wall body is lateral
When connection, reinforcing bar binding is carried out in certain interval, which constitutes a filling concrete space 11, and the concrete fills
The bottom in note space 11 is connected to the concrete cast-in-situ space 4 positioned at edge；In this way, by filling concrete space 11
Interior concrete perfusion slurry, can make the bottom inside every precast wall body form one, improve connecting structure of wall
Globality and intensity；Keyway 51 forms uniformly distributed concaveconvex structure between supporter and concrete cast-in-situ space 4, so that dry wall
Stable connection between body top and the bottom is strengthened.
Stiffener 12 is equipped in filling concrete space 11.The lower part of vertical reinforcement is equipped with tie hoop in precast wall body
13, it is used for and the Vertical bar connection of the lower section wall of the precast wall body.
In one embodiment, as shown in Figs 1-4, supporter is prefabricated third wall 3, and third wall 3 does not fill
The whole in the space formed between full first wall 1 and the second wall 2, and it is logical that filling concrete is constructed out in third wall 3
Road 31；Specifically, the top of third wall 3 is concordant with 2 top edge of the first wall and is lower than the top edge of the second wall 1, third
The lower section of wall 3 is equipped with concrete cast-in-situ space 4, and the bottom of third wall 3 is preferably and under the first wall 1 and the second wall 2
There are distances at edge, so that this partial distance forms the entire bottom space between the first wall 1 of the injection and the second wall 2
Concrete cast-in-situ space 4, the cast-in-place space 4 it is preferred its top be plane, between third wall 3 and cast-in-place space 4 setting by
The cross section of the keyway arrangements 5 that steel plate is constituted, keyway 51 is isosceles trapezoid shape, and angle is preferably between 51 cell wall of keyway and slot bottom
120°；Connection plane between third wall 3 and cast-in-place space 4 is evenly distributed with several keyways 51, keeps one between keyway 51
Fixed interval makes to form plane boss 52 between adjacent keyway；Concrete cast-in-situ space 4 be connected to filling concrete channel 31 to
By filling concrete channel 31 to 4 casting concrete slurry of concrete cast-in-situ space.It is in order in the bottom shape of wall in this way
At continuous overall structure, bond strength is improved.Filling concrete channel 31 and concrete cast-in-situ space 4 together constitute coagulation
The cast-in-place region of soil.
The prefabricated formation of third wall 3, and non-at-scene grouting obtains, so that in site operation casting process, it is only necessary to
A part of concrete slurry is poured by filling concrete channel 31, by remaining space between the first wall 1 and the second wall 2
It fills up, and does not have to fill entire space as in the prior art and take a substantial amount of time.In addition, third wall 3 can
It is formed with prefabricated in the factory, quality, compared to control is easier, has good intensity, so that external wall structure compared with cast in situs
Globality it is more preferable, intensity is higher.
In some embodiments, filling concrete channel 31 is vertically constructed in the inside of third wall 3, the shape in the channel
It is not construed as limiting the invention, can be the hole of circular hole, polygon hole (such as square hole) or other geometries.Filling concrete
The quantity in channel 31 (width of such as wall) can adjust according to the actual situation, and in the present embodiment, external wall structure has two
Road filling concrete channel 31 is intervally arranged inside third wall 3 along identical, and diameter is less than or equal to third wall 3
Thickness；The bottom in filling concrete channel 31 is connected to concrete cast-in-situ space 4.
In some embodiments, third wall 3 is only the first wall 1 and support, lower part are formed at the top of the second wall 2
Concrete cast-in-situ space 4 be entirely it is hollow, it is uneven that this may result in support strength.For this purpose, in concrete cast-in-situ sky
Between be provided with multiple supporting leg columns 7 in 4, also formed by concrete prefabricated, be also possible to hollow cylinder；The quantity of supporting leg column 7 and
Position can be adjusted according to actual requirement, for example, in some embodiments, the quantity of supporting leg column 7 can be with third wall 3
The quantity for being formed separately part by filling concrete channel 31 is identical, and the part separated with these is protected with it in the height direction
Correspondence is held, can be formed support in wall bottom in this way, improve the integral strength of external wall structure.The upper and lower ends of supporting leg column 7
It is bonded respectively with 5 lower surface of keyway arrangements and/or concordant with the lower edge of the first wall 1 and the second wall 2；Alternatively, supporting leg column
It is made as entirety in advance with third wall and supporting leg column passes through keyway arrangements and is arranged in cast-in-place space；In the two sides of third wall 3
Edge is vertically embedded with installation of the column keyway 52 for wall and connects.
It is equipped with height adjustment device in the bottom of precast wall body, for adjusting with the height of precast wall body in a horizontal plane
On, then so that it is formed an entirety with precast wall body by cast in situs, can both guarantee that the height between wall was flat in this way
Together, and the process that mortar smoothes out is eliminated, the separation layer for preventing mortar from being formed cannot sufficiently be combined to cause under intensity with concrete
Drop.In one embodiment provided by the invention, as shown in fig. 6, height adjustment device include be arranged in it is multiple in cast-in-place space 4
The supporting leg column 7, keyway arrangements 5 are contacted at the top of supporting leg column 7 and bottom is equipped with leveling bolt 15, are passed through and are adjusted the leveling bolt
15, the height for the prefabricated panel that adjustable supporting leg column 7 is propped up realizes the concordant of height between each wall；Preferential is multiple
Supporting leg column 7 is evenly arranged in cast-in-place space 4 at certain intervals, can be by supporting leg column 7 and leveling bolt 15 when then pouring at the scene
It pours together integral, is no longer needed for mortar levelling in this way, the wall for avoiding mortar from being formed is bad in conjunction with concrete to lead
Cause intensity decline.
In another embodiment, supporter as shown in Figure 5 is prefabricated third wall 3, the top of third wall 3 and second
The top edge of wall 2 is concordant and is lower than the first wall 1, the bottom of third wall 3 be positioned at the first wall 1 and the second wall 2 it
Between concrete cast-in-situ space 4, be constructed out the filling concrete channel 31 for being connected to cast-in-place space 4 in third wall 3；Third wall
The keyway arrangements 5 being made of steel plate are set between body 3 and cast-in-place space 4.And it is equipped in third wall 3 vertically disposed
Support column 6 forms the support colonnade being parallel to each other；In the present embodiment, have five to be disbursed from the cost and expenses dagger column, left side first row, middle
Contain the spaced support column 6 of twice or more in third column and the 5th column on right side, contains in intermediate secondary series and the 4th column
There is one of support column 6；Preferably, it adjacent two is disbursed from the cost and expenses between dagger 6 and can be arranged with mutual dislocation；Such as intermediate secondary series and the
Four are disbursed from the cost and expenses, and only part is overlapped dagger 6 with the support column 6 of first row, third column and the 5th column in the horizontal direction, among it
Part is located at the position in first row and the 5th column between twice support column 6；This arrangement mode is equivalent to a certain extent
Fill up that first row, the interval of each support column 6 is formed by support white space in the horizontal direction in third column and the 5th column,
Support force distribution is more uniform, and the intensity of wall body structure has obtained better raising.
Preferably, support column 6 substitutes the height adjustment that the supporting leg column 7 in a upper embodiment realizes precast wall body, in the reality
It applies in example, in the support colonnade (first and third, five be disbursed from the cost and expenses dagger column) with twice support column 6, under the support column 6 of bottommost
End is concordant with the bottom margin of the first wall 1 and the second wall 2, and the bottom surface of support column 6 is equipped with leveling bolt, described in adjusting
Leveling bolt, the height for the prefabricated panel that adjustable support column 6 is propped up realize the concordant of height between each wall；Existing
Field can pour support column 6 and leveling bolt when pouring integral together, be no longer needed for mortar levelling in this way, avoid mortar
The wall of formation is bad in conjunction with concrete to cause intensity to decline.Since the height of support column 6 may be high with cast-in-place space 4
Degree, therefore the support column 6 with leveling effect is it is so structured that the form through keyway arrangements is either truncated by keyway arrangements
For corresponding two-part form up and down.
In the casting process of concrete, can because material itself defect or casting craft defect the reason of generate
Bubble will remain in concrete surface, a small amount of bubble will affect the beauty of wall if these bubbles cannot be discharged in time
It sees, a large amount of bubble will affect the durability of concrete, and furthermore concrete is also required to that wall is made to form whole knot after pouring
Structure.In order to solve this problem, in some embodiments, the through-hole 32 for exhaust, the through-hole are equipped in the third wall 3
32 be inclined hole, and the outside for being conducting to the first wall 1 or the second wall 2 is used to that the bubble generated in concreting process to be discharged,
With reference to Fig. 4, the discharge of the gas in the cast-in-place anchorage zone in lower part is solved, enables concrete full of entire lower anchor region
The space in (cast-in-place space 4).
For convenience of the setting fixation and guarantee verticality of precast wall body, the appearance of the first wall 1 and/or the second wall 2
Face is equipped with support bracket 8, and support bracket 8 is the block equipped with cross through hole, preferably Steel material；Support bracket 8 is connected by through-hole
Building-supporting bar is connect, is supported in the setting up procedure of precast wall body scene or verticality adjusts.
In some other embodiment, the lower end of the face wall in the first wall 1 and the second wall 2 is relative to another side
There are distances for the lower end of wall, to constitute a notch, supporting module 9 when for pouring at the scene.Such as the second wall shown in Fig. 4
The lower end of body 2 is not concordant with the lower end of the first wall 1, and is the absence of a part, this part may be used for supporting module
9, to form complete casting space.
Since external wall structure provided in an embodiment of the present invention needs to place vertically in pouring construction, will erect
Straight side is known as the "high" of wall, and horizontal side is known as " width ", the space length formed between the first wall 1 and the second wall 2
Referred to as " thickness " in the space.
The embodiment of the present invention also provides a kind of construction method for realizing above-mentioned exterior wall attachment structure, which comprises
(1) supporter is constructed in advance in precast wall body, there are spaces with the bottom of precast wall body, are full of to construct
Concrete cast-in-situ space between first wall and the second wall, at least part of cast-in-place space are built into precast wall body
Edge, and keyway arrangements are constructed between supporter and cast-in-place space in advance, keyway arrangements include in keyway uniformly at intervals, phase
Plane boss is formed between adjacent keyway；
(2) when cast in situs, the transverse steel at two panels precast wall body edge is bound, filling concrete space is constructed,
Filling concrete space is connected to the cast-in-place space at the edge for being built into precast wall body, then in the spacious of filling concrete space
Open face formwork；
(3) concrete perfusion into filling concrete space full of filling concrete space and is built into precast wall body
Edge cast-in-place space, so that two panels precast wall body be made to form one in bottom.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of exterior wall attachment structure, which is characterized in that including at least by the first wall, the second wall and being folded in first
The precast wall body that supporter between wall and the second wall and insulating layer are constituted, the supporter bottom and the first wall and the
There are distances for the bottom of two walls to construct the concrete cast-in-situ space being full of between the first wall and the second wall, and this is existing
At least part for pouring space is built into the edge of precast wall body；Connection plane structure between the supporter and cast-in-place space
Produce keyway arrangements, keyway arrangements include forming plane boss between adjacent keyway in keyway uniformly at intervals；The dry wall
It is also constructed out the filling concrete channel being connected to cast-in-place space in vivo；The exterior wall attachment structure includes adjacent two prefabricated
Filling concrete space and two sides precast wall body between wall are built into the cast-in-place space at edge, the filling concrete
Space is connected to the cast-in-place space for being built into edge, thus the connection structure integral by concreting；
The bottom of the precast wall body is equipped with height adjustment device, for adjusting the height of precast wall body；
Supporting element is equipped in the cast-in-place space for being supported to cast-in-place space；
Supporter is third wall, and there are distances with the lower edge of the first wall and the second wall to construct for the lower section of third wall
Cast-in-place space out, third wall are also constructed out the filling concrete channel being connected to cast-in-place space.
2. exterior wall attachment structure according to claim 1, it is characterised in that: the supporting element includes setting in cast-in-place space
The multiple supporting leg columns having, the upper and lower ends of supporting leg column be bonded respectively with keyway arrangements lower surface and/or with the first wall and second
The lower edge of wall is concordant.
3. exterior wall attachment structure according to claim 2, it is characterised in that: the height adjustment device includes the branch
The bottom of leg column, supporting leg column is equipped with leveling bolt.
4. exterior wall attachment structure according to claim 1, it is characterised in that: be equipped with vertical array in the third wall
Support column, form the support colonnade that is parallel to each other of multiple tracks；At least part between support column in adjacent twice support colonnade
Mutual dislocation arrangement.
5. exterior wall attachment structure according to claim 4, it is characterised in that: at least support column of part support colonnade
The bottom end supporting element using as cast-in-place space concordant with the bottom margin of the first wall and the second wall, and the support column bottom
Portion is equipped with leveling bolt using the height adjustment device as the height for adjusting precast wall body.
6. exterior wall attachment structure according to claim 1-5, it is characterised in that: the first wall and/or second
The outer surface of wall is equipped with support bracket, and support bracket is the block equipped with cross through hole；It is equal in the both sides of the edge of third wall
Vertically it is embedded with a column keyway.
7. according to the described in any item exterior wall attachment structures of claim 3-5, it is characterised in that: be equipped in the third wall
For the through-hole of exhaust, which is inclined hole and the outside for being conducting to the first wall or the second wall, and concrete is enable to be full of
The space of entire concrete cast-in-situ anchorage zone.
8. exterior wall attachment structure according to claim 1-5, it is characterised in that: first wall and/or
The lower end leaving certain gaps uncovered by the economic plan of second wall, supporting module when for pouring at the scene.
9. according to the described in any item exterior wall attachment structures of claim 4 or 5, it is characterised in that: the supporting leg column and third
Wall is prefabricated to be integral.
10. a kind of construction method of exterior wall attachment structure, it is characterised in that: including
Construct supporter in advance in precast wall body, there are spaces with the bottom of precast wall body, are full of the first wall to construct
Concrete cast-in-situ space between body and the second wall, at least part of cast-in-place space are built into the edge of precast wall body,
And keyway arrangements are constructed between supporter and cast-in-place space in advance, keyway arrangements include in keyway uniformly at intervals, adjacent key
Plane boss is formed between slot；
When cast in situs, the transverse steel at two panels precast wall body edge is bound, constructs filling concrete space, concrete fills
Note space is connected to the cast-in-place space at the edge for being built into precast wall body, then in the open surface branch in filling concrete space
Mould；
The concrete perfusion into filling concrete space, full of filling concrete space and the edge for being built into precast wall body
Cast-in-place space, so that two panels precast wall body be made to form one in bottom.
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