CN109868923B - Construction method of bare concrete of loose-spliced wood formwork - Google Patents
Construction method of bare concrete of loose-spliced wood formwork Download PDFInfo
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- CN109868923B CN109868923B CN201910180066.6A CN201910180066A CN109868923B CN 109868923 B CN109868923 B CN 109868923B CN 201910180066 A CN201910180066 A CN 201910180066A CN 109868923 B CN109868923 B CN 109868923B
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Abstract
The invention provides a construction method of bare concrete of a loose-jointed wood template, which comprises the steps of preparing components required in the concrete construction process, constructing bottom section concrete, constructing middle section concrete and constructing top section concrete, thereby forming a bare concrete wall. In the construction method, the telescopic joint plates are installed in the steel bar binding stage, the loose-spliced wood formwork is adopted for construction to form the formwork wall, holes are formed in the joints of the wood formwork and the wood formwork, the caulking strips are installed at the joints of the wood formwork, the formwork wall is reinforced, the top section of the formwork is adjusted in the straightness, finally, concrete is poured to form the fair-faced concrete wall, and the bottom section fair-faced concrete wall is connected with the middle section formwork wall and the middle section fair-faced concrete wall is connected with the top section formwork wall through the supporting devices. By the construction method, the characteristics of high flatness, good overall stability and high impression quality of the cast bare concrete wall can be ensured, and quality defects such as concrete leakage, wall deformation, non-smooth and non-straight edge and corner lines and the like can be effectively prevented.
Description
Technical Field
The invention relates to the field of concrete construction, in particular to a loose-spliced wood formwork bare concrete construction method.
Background
Fair-faced concrete is also called decorative concrete, so that it is named for its very good decorative effect. It is a one-step casting moulding, does not make any external decoration, and directly adopts the natural surface effect of cast-in-place concrete as decorative surface, so that it is different from general concrete, and its surface is smooth, uniform in colour and lustre, clear in edge angle, and has no damage and pollution, and only has one layer or two layers of transparent protective agent coated on the surface, so that it is very natural and solemn.
The conventional bare concrete construction method generally adopts a steel formwork for construction, and the steel formwork is heavy, so that the steel formwork cannot be installed and dismantled without the assistance of a tower crane. The split wood formwork is light and convenient, the advantages of the split wood formwork can be played, the reinforcing and mounting difficulty of the split wood formwork is high, the technical requirements of preventing seepage and slurry leakage and the like at the joints of the formwork are very high, and no specific construction scheme exists at present for how to realize the uniform, attractive and high-quality effects of the ultra-high and ultra-long fair-faced concrete wall.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a construction method of bare concrete of a loose-spliced wood template, which can effectively realize the effects of uniformity, attractiveness and high quality of ultra-high and ultra-long bare concrete walls.
In order to realize the purpose, the invention provides a loose-spliced wood formwork fair-faced concrete construction method, which comprises the following steps:
preparing a structural member required by a concrete construction process, wherein the structural member comprises a wood template, a caulking strip, a supporting device and a telescopic seam plate, wherein a first through hole is formed in a splicing seam position, and the caulking strip is provided with a second through hole corresponding to the first through hole;
b, sequentially binding steel bars, installing the telescopic seam plates, installing the wood formwork of the bottom section, installing the caulking strips and pouring concrete to obtain the bare concrete wall of the bottom section;
c, after the bottom section fair-faced concrete wall is formed, connecting the wood formwork in the middle section with the bottom section fair-faced concrete wall through the supporting device, and pouring middle section concrete to obtain a middle section fair-faced concrete wall;
and d, after the middle section fair-faced concrete wall is formed, connecting the wood formwork of the top section with the middle section fair-faced concrete wall through the supporting device, and performing top section concrete construction to obtain the middle section fair-faced concrete wall.
As a further improvement of the above technical solution, the step b includes the following steps:
b1, sequentially leveling a concrete foundation on the ground to form a foundation concrete surface, carrying out measurement paying-off and wall body steel bar binding on the foundation concrete surface, and mounting the telescopic seam plate on the foundation concrete surface in the wall body steel bar binding stage, wherein the wall body steel bar is cut off by the telescopic seam plate along the vertical direction of the wall body steel bar;
b2., mounting the wood formwork on the surface of the foundation concrete, connecting the wood formwork and the wood formwork to form a bottom section formwork wall with a level top, wherein the bottom section formwork wall comprises a first bottom section formwork wall and a second bottom section formwork wall, the first bottom section formwork wall and the second bottom section formwork wall are respectively arranged on two sides of the wall body reinforcing steel bars, the second through hole is connected with the first through hole through a bolt, so that the caulking strip is mounted at the splicing part where the wood formwork and the wood formwork are connected, the bottom section formwork wall is reinforced by a main rib and a secondary rib, and then the straightness of the bottom section formwork wall is adjusted;
step b3., performing concrete pouring on the bottom of the installed bottom section formwork wall to form a bottom section bare concrete wall.
As a further improvement of the above technical solution, the step c includes the following steps:
step c1, after the wood formwork of the formed bottom section fair-faced concrete wall is dismantled, mounting the supporting device on the bottom section fair-faced concrete wall, wherein the supporting device comprises a first supporting part, a second supporting part and a third supporting part, the second supporting part is a straight strip-shaped plate, the tail ends of the two ends of the second supporting part are respectively connected with the first supporting part and the third supporting part in an anti-parallel mode, the first supporting part is connected with the bottom section fair-faced concrete wall in an attaching mode, the bottom of the wood formwork of the middle section is connected with the second supporting part, the third supporting part is connected with the wood formwork of the middle section in a parallel attaching mode, and the wood formwork of the middle section is limited to move, so that the wood formwork of the middle section is mounted on the bottom section fair-faced concrete wall;
c2., performing middle-section concrete construction according to the step b2 and the step b3 of the bottom-section loose-spliced wood formwork fair-faced concrete construction method to form the middle-section fair-faced concrete wall.
As a further improvement of the above technical solution, in the step d, the top section concrete construction is performed according to the construction method of the step c to form a top section fair-faced concrete wall.
As a further improvement of the above technical solution, in the step b3, before the concrete is poured to form the bottom cast finish concrete wall, a bottom barrier strip is arranged on the outer side of the bottom formwork wall, and the gap between the bottom barrier strip and the bottom formwork wall is filled with mortar.
As a further improvement of the above technical solution, in the step b3, when the concrete is poured to form the bare concrete wall at the bottom section, the gravels are embedded in the surface layer of the concrete when the concrete reaches the initial setting.
As a further improvement of the above technical scheme, after the step d is completed, the protective agent is coated on the bottom section fair-faced concrete wall, the middle section fair-faced concrete wall and the top section fair-faced concrete wall.
As a further improvement of the above technical solution, in the step b2, the step of "adjusting the straightness of the bottom section formwork wall" includes: the first bottom section formwork wall top is connected with a first reinforcing plate along the trend of the first bottom section formwork wall top, the second bottom section formwork wall top is connected with a second reinforcing plate along the trend of the second bottom section formwork wall top, the inner side of the first reinforcing plate is connected with the inner side of the second reinforcing plate through a first connecting piece, the outer side of the first reinforcing plate is connected with the outer side of the second reinforcing plate through a second connecting piece, and the straightness of the bottom section formwork wall is adjusted through the inner support of the first connecting piece and the outer receiving of the second connecting piece.
As a further improvement of the above technical solution, the first connecting member used for internally supporting the bottom section formwork wall in step b2 is a straight bar-shaped rod, the ends of the two ends of the first connecting member are both provided with a clamping portion, and the first connecting member is respectively connected with the inner side of the first reinforcing plate and the inner side of the second reinforcing plate through the clamping portions.
As a further improvement of the above technical solution, the first reinforcing plate extends in a direction away from the second reinforcing plate to form a first extending platform, the second reinforcing plate extends in a direction away from the first reinforcing plate to form a second extending platform, the second connecting member used for externally supporting the formwork wall of the bottom section in step b2 includes a connecting rod, and a first reinforcing portion and a second reinforcing portion which are connected with ends of the connecting rod and are not parallel to each other, the first reinforcing portion is connected with the first extending platform, and the second reinforcing portion is connected with the second extending platform.
The invention has the beneficial effects that:
the invention provides a construction method of bare concrete of a loose-jointed wood template, which comprises the steps of preparing components required in the concrete construction process, constructing bottom section concrete, constructing middle section concrete and constructing top section concrete, thereby forming a bare concrete wall. In the construction method, the telescopic joint plates are installed in the steel bar binding stage, the loose-spliced wood formwork is adopted for construction to form the formwork wall, holes are formed in the joints of the wood formwork and the wood formwork, the caulking strips are installed at the joints of the wood formwork, the formwork wall is reinforced, the top section of the formwork is adjusted in the straightness, finally, concrete is poured to form the fair-faced concrete wall, and the bottom section fair-faced concrete wall is connected with the middle section formwork wall and the middle section fair-faced concrete wall is connected with the top section formwork wall through the supporting devices. By the construction method, the characteristics of high flatness, good overall stability and high impression quality of the cast bare concrete wall can be ensured, and quality defects such as concrete leakage, wall deformation, non-smooth and non-straight edge and corner lines and the like can be effectively prevented.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention.
FIG. 1 is a construction flow diagram of an embodiment of a loose-spliced wood formwork fair-faced concrete construction method of the invention;
FIG. 2 is an assembly view of a first connector and a second connector of the present invention;
FIG. 3 is a schematic structural view of a processing platform according to the present invention;
FIG. 4 is a schematic structural view of the expansion joint plate of the present invention;
FIG. 5 is a schematic view of a caulking strip of the present invention;
fig. 6 is an assembly view of the support device of the present invention.
Description of the main element symbols:
10. a first bottom section formwork wall; 20. a second bottom section formwork wall; 31. a first extension stage; 32. a second extension stage; 40. a first connecting member; 41. a clamping part; 50. a connecting rod; 51. a first reinforcing section; 52. a second reinforcing section; 100. a processing platform; 101. a first connection portion; 102. a second connecting portion; 103. a support frame; 104. a bearing table; 200. a telescopic seam plate; 201. a first board surface; 202. a second board surface; 203. a third connecting member; 204. a first connecting plate; 205. a second connecting plate; 206. a telescopic seam plate body; 300. caulking strips; 301. a second connection face; 302. connecting holes; 303. a first connection face; 400. a bottom section bare concrete wall; 401. a third support portion; 402. a second support portion; 403. a first supporting part.
Detailed Description
Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
The invention provides a construction method of bare concrete with loose-spliced wood formworks, which can ensure the characteristics of high flatness, good overall stability and high impression quality of a cast bare concrete wall and can effectively prevent the quality defects of concrete leakage, wall deformation, unsmooth edge and corner lines and the like.
Referring to fig. 1, a method for constructing bare concrete of a split wood formwork includes the following steps:
step a, preparing a configuration member required by a concrete construction process: a wooden template with a first through hole at the abutted seam, a caulking strip 300 with a second through hole corresponding to the first through hole, a supporting device and a telescopic seam plate 200;
optionally, the first through hole is obtained by processing the joint of the wooden formwork through a processing platform 100, referring to fig. 3, the processing platform 100 includes a bearing platform 104 for placing the wooden formwork and a supporting frame 103, the bearing platform 104 is connected with a first connecting portion 101, an edge of the bearing platform 104 is provided with an identification point used as a reference position for the first through hole, the supporting frame 103 is connected with a second connecting portion 102, and the first connecting portion 101 is detachably connected with the second connecting portion 102, so that the bearing platform 104 is supported on the supporting frame 103.
In this embodiment, the wooden form is assembled on the bearing platform 104, the wooden form and the wooden form are tightly connected by the limitation of the bearing platform 104, the joint of the wooden form is positioned by paying off the mark point on the bearing platform 104 to form a pre-processing site, so that the pre-processing site of the wooden form is perforated, and the joint of the wooden form is perforated without damage and precisely. The first connecting part 101 and the second connecting part 102 which are detachably connected are arranged, so that the bearing table 104 and the support frame 103 can be conveniently installed and detached, in the embodiment, the first connecting part 101 can be arranged to be a sleeve-shaped structure with a hollow inner part, and the second connecting part 102 is a solid cylinder-shaped structure matched with the first connecting part 101; for large batch of template openings, the consistency of the opening hole positions of each wood template in the same batch can be ensured, and the opening position deviation caused by errors of artificial snapping lines is reduced.
Optionally, for the ornamental effect of the bare concrete wall surface, the wood formwork is selected according to the specification of the wood formwork with the length and the width of 1.22m by 2.44 m.
Optionally, referring to fig. 5, the shape of the caulking strip 300 is a strip, the longitudinal cross section of the caulking strip 300 is trapezoidal, the caulking strip 300 has four side surfaces, the four side surfaces include a first connecting surface 303 and a second connecting surface 301 which are arranged in parallel relatively, and a first transition surface and a second transition surface which are obliquely crossed with the first connecting surface 303 and the second connecting surface 301 respectively, the area of the second connecting surface 301 is smaller than that of the first connecting surface 303, a plurality of connecting holes 302 for connecting with the joints of the wood formwork through bolts are arranged on the first connecting surface 303 at intervals, and the connecting holes 302 are blind holes.
The first connecting surface 303 of the caulking strip 300 is provided with the connecting hole 302, the caulking strip 300 is connected with a screw hole at the abutted seam of the wood formwork through a bolt, the caulking strip 300 can be stably installed on the wood formwork, slurry leakage during concrete pouring is prevented, later-period disassembly is facilitated, and the connecting hole 302 is a blind hole, so that the caulking strip 300 can be disassembled after molding to form a caulking seam with good quality and impression effect on a clear water concrete wall; the caulking strip 300 is arranged into a trapezoidal body, and concrete pouring is carried out after the first connecting surface 303 is connected with the wood template, so that demoulding is easy; meanwhile, the caulking strip 300 is of a fixed size and has the characteristics of recycling and good turnover.
Optionally, in order to reduce the influence of the caulking strips 300 on the wooden formwork during the reinforcement, the caulking strips 300 are reinforced by using vertical caulking strip reinforcements and horizontal caulking strip reinforcements on the opposite side of the wooden formwork to the caulking strips 300.
Optionally, the shape of the caulking strip 300 is any one of a straight strip shape, an L shape, and a cross shape.
Optionally, the ends of the caulking strip 300 are tapered or flat-headed.
Optionally, in the plurality of connection holes 302, a distance between every two adjacent connection holes 302 is 50-300 mm.
Alternatively, the caulking strip 300 may be divided into a standard member, a connecting member and a rim member according to the application. The standard component comprises a transverse standard component and a vertical standard component, the connecting component comprises a cross connecting component, a fan-shaped connecting component and an L-shaped connecting component, and the edge component comprises a transverse edge component and a vertical edge component.
Optionally, referring to fig. 6, the supporting device includes a first supporting portion 403, a second supporting portion 402 and a third supporting portion 401, the second supporting portion 402 is a straight strip-shaped plate, the ends of the two ends of the second supporting portion 402 are respectively connected with and not parallel to the first supporting portion 403 and the third supporting portion 401, the first supporting portion 403 is attached to the bottom-section fair-faced concrete wall 400, the bottom of the wood formwork in the middle section is connected to the second supporting portion 402, and the third supporting portion 401 is parallel to the wood formwork in the middle section and limits the wood formwork in the middle section to move, so that the wood formwork in the middle section is installed on the bottom-section fair-faced concrete wall 400.
As described above, the first supporting portion 403 is attached to the bottom-section bare concrete wall 400, so that the supporting device is installed on the bottom-section bare concrete wall 400, the second supporting portion 402 forms a supporting step to support a wood formwork in the middle section, the third supporting portion 401 is parallel to and attached to the wood formwork in the middle section, and when a gap exists between the third supporting portion 401 and the wood formwork in the middle section, the gap is filled with a wedge.
When the wooden form of the middle section is installed, the existing screw hole of the bottom section bare concrete wall 400 is used to fix the first supporting part 403 of the supporting device through the split screw. Before the supporting device is installed, a layer of plastic gummed paper is arranged on the wall surface of the bottom section bare concrete wall 400, so that the wall surface of the bottom section bare concrete wall 400 is prevented from being polluted.
Optionally, referring to fig. 4, the expansion joint plate 200 includes an expansion joint plate body 206 and a third connecting member 203, the expansion joint plate body 206 comprises a first plate surface 201 and a second plate surface 202 which are oppositely arranged, the number of the third connecting pieces 203 is four, the third connecting pieces 203 comprise a first connecting plate 204 and a second connecting plate 205, the first connecting plate 204 and the second connecting plate 205 are both in the shape of a strip sheet, one side edge of the first connecting plate 204 is connected with one side edge of the second connecting plate 205, and the first connecting plate 204 is arranged perpendicular to the second connecting plate 205, wherein the first connecting plates 204 of the two third connecting pieces 203 are attached to the first plate surface 201 in parallel with the first plate surface 201, the first connecting plates 204 of the other two third connecting members 203 are attached to the second plate surface 202 in parallel with the second plate surface 202.
Above-mentioned, third connecting piece 203 is connected in wall body reinforcing bar or the bottom is pre-buried to the face vertical placement with flexible seam board body 206, flexible seam board body 206 cuts the wall body reinforcing bar along its vertical direction. The telescopic seam plate 200 is installed to form a partition when the steel bars are bound, concrete can be poured on two sides of the telescopic seam plate 200 at the same time, and the inside of a poured fair-faced concrete wall can be partitioned to prevent cracks.
B, constructing bottom section concrete: and binding reinforcing steel bars, installing the telescopic seam plates 200, installing the wood formwork at the bottom section, installing the caulking strips 300 and pouring concrete to obtain the bare concrete wall 400 at the bottom section.
In the above, the step b includes:
b1, sequentially leveling a concrete foundation on the ground to form a foundation concrete surface, carrying out measurement paying-off and wall body steel bar binding on the foundation concrete surface, mounting the telescopic seam plate 200 on the foundation concrete surface in the wall body steel bar binding stage, and cutting off the wall body steel bars by the telescopic seam plate 200 along the vertical direction;
above-mentioned, in the construction of end section concrete, pay attention to control wall body reinforcing bar location, the high roughness of foundation concrete finish face is according to 2mm control. Carrying out plane measurement paying-off on the surface of the concrete, wherein the plane measurement paying-off comprises a wall sideline, a sideline control line and a template abutted seam vertical positioning line; when the reinforcing steel bars are bound, the wall reinforcing steel bar protective layer is preferably 20-30 mm, the tail parts of the iron wires are uniformly inward during the binding process of the reinforcing steel bars, the binding wires are not allowed to be outward, and the binding wire heads are prevented from rusting in the future; meanwhile, the wall pull hook steel bars are strictly designed, so that the width of the cross section of the wall steel bars is ensured; at the reinforcement stage, install flexible seam board 200, flexible seam board 200 and wall body reinforcing bar welding together, flexible seam board 200 both sides are strengthened with the bracing, prevent because the reinforcing bar removes to lead to flexible seam board 200 to take place the displacement.
B2., mounting the wood formwork on the surface of the foundation concrete, wherein the wood formwork is connected with the wood formwork to form a bottom section formwork wall with a top flush with the top of the wood formwork, the bottom section formwork wall comprises a first bottom section formwork wall 10 and a second bottom section formwork wall 20, the first bottom section formwork wall 10 and the second bottom section formwork wall 20 are respectively arranged on two sides of the wall body reinforcing steel bar, the second through hole is connected with the first through hole through a bolt, so that the caulking strip 300 is mounted at the splicing joint of the wood formwork and the wood formwork, the bottom section formwork wall is reinforced by main ribs and secondary ribs, and the straightness of the bottom section formwork wall is adjusted;
before the wood formwork is installed on the basic concrete surface, firstly, the double faced adhesive tape is pasted on the basic concrete surface, and the wood formwork with the first through hole and the caulking strip 300 with the second through hole are assembled by bolts according to the number of the typesetting drawing. The wooden template is placed on the top of the double faced adhesive tape and compacted, the bottom edge line of the template is guaranteed to be horizontal, and in order to reduce the influence of the caulking strips 300 on the template during reinforcement, the vertical caulking strip reinforcing members and the transverse caulking strip reinforcing members are used for reinforcing the caulking strips 300 on the opposite side where the wooden template and the caulking strips 300 are connected.
Optionally, the templates are assembled at the male and female corners of the template by cutting into 45-degree contact angles, an L-shaped caulking strip 300 is fixed at the male and female corners, and the female corners are checked by a square to ensure that the female corners are correct. The screw rod is assembled with the rubber tube of the rubber cup, and in order to prevent the bottom of the rubber cup from leaking slurry, the double faced adhesive tape is adhered to the bottom of the rubber cup and is arranged on the template to be fixed by a corresponding nut gasket.
And (3) adjusting verticality and leveling the wood template by using measuring tools such as a horizontal pipe and a level gauge, and controlling the straightness deviation of the transverse seam and the vertical seam between the wood template and the wood template within +/-2 mm.
The process of "adjusting the straightness of the bottom section formwork wall" includes: referring to fig. 2, the top of the first bottom section formwork wall 10 is connected to a first reinforcing plate along the direction thereof, the top of the second bottom section formwork wall 20 is connected to a second reinforcing plate along the direction thereof, the inner side of the first reinforcing plate is connected to the inner side of the second reinforcing plate through a first connecting member 40, the outer side of the first reinforcing plate is connected to the outer side of the second reinforcing plate through a second connecting member, and the straightness of the bottom section formwork wall is adjusted through the inner support of the first connecting member 40 and the outer receiving of the second connecting member.
Specifically, the first connecting member 40 is a straight bar-shaped rod, the ends of the two ends of the first connecting member 40 are both provided with a clamping portion 41, and the first connecting member 40 is connected with the inner side of the first reinforcing plate and the inner side of the second reinforcing plate through the clamping portions 41.
Specifically, the first reinforcing plate extends in a direction away from the second reinforcing plate to form a first extending table 31, the second reinforcing plate extends in a direction away from the first reinforcing plate to form a second extending table 32, the second connecting member includes a connecting rod 50, and a first reinforcing portion 51 and a second reinforcing portion 52 which are respectively connected with ends of the connecting rod 50 and are not parallel, the first reinforcing portion 51 is connected with the first extending table 31, and the second reinforcing portion 52 is connected with the second extending table 32.
In this embodiment, after the first reinforcing plate, the second reinforcing plate, the first connecting member 40 and the second connecting member are mounted, the first reinforcing plate, the second reinforcing plate, the first connecting member and the second connecting member are fastened by steps, and the first reinforcing plate, the second reinforcing plate, the first connecting member and the second connecting member are corrected while being fastened; the straightness of the bottom section formwork wall is adjusted under the repeated effect of the inner support of the first connecting piece 40 and the outer folding of the second connecting piece, and the effects of ensuring that the top formwork is not deformed and the distance between the two side formworks is uniform are achieved.
Step b3. concreting the bottom of the installed bottom form wall to form a bottom cast finish concrete wall 400.
Before the concrete is poured to form the bottom section bare concrete wall 400, the bottom barrier strip is arranged on the outer side of the bottom section template wall, and the gap between the bottom barrier strip and the bottom section template wall is filled with mortar, so that the mortar plugging effect between the wood template and the foundation concrete surface is ensured.
The engineering quantity of concrete materials of the wall body on the same side is considered before concrete pouring, and sand, stone and cement of the same batch are prepared in advance to reduce the surface color difference of the concrete. The concrete in-mold slump value is controlled to be 140-160 mm.
When the concrete is poured to form the bottom section bare concrete wall 400, gravels are embedded in the surface layer of the concrete when the concrete reaches initial setting. After the concrete pouring is finished, the concrete pouring elevation is flush with the middle part of the caulking strip 300, and when the concrete reaches initial setting, gravels are embedded in the surface layer of the concrete instead of the concrete chiseling.
The bottom section bare concrete wall 400 needs to be maintained after being poured, the maintenance time is not less than 7 days, and the maintenance is preferentially carried out by adopting a covering film.
Optionally, the bottom formwork wall is reinforced by square-channel secondary ribs and channel steel main ribs, and when the starting part of the bottom clear water concrete wall 400 is arranged by the square-channel secondary ribs, 50mm battens or formworks are preferably arranged on the ground in a cushioning mode, so that a working surface is provided for wall root mortar caulking before concrete pouring.
C, middle section concrete construction: after the bottom section fair-faced concrete wall 400 is formed, connecting the wood formwork in the middle section with the bottom section fair-faced concrete wall 400 through the supporting device, and performing middle section concrete pouring to obtain a middle section fair-faced concrete wall;
the step c comprises the following steps:
c1. after the wooden templates of the formed bottom section bare concrete wall 400 are removed, a supporting device is installed on the bottom section bare concrete wall 400 and is used for supporting the installation of the wooden templates of the middle section;
after the wood formwork of the bottom section bare concrete wall 400 is removed, the middle section concrete construction is started when the concrete reaches the required strength. Installation interlude during the plank sheathing, at first utilize the current screw hole of end section clear water concrete wall 400 to fix through split screw the one side strutting arrangement installation that strutting arrangement's first supporting part 403, and first supporting part 403 and end section clear water concrete wall 400 are connected pastes the double faced adhesive tape before, and the time of preventing that interlude clear water concrete wall from pouring leaks thick liquid, should set up one deck plastic cement paper at end section clear water concrete wall 400's wall simultaneously, prevents to pollute end section clear water concrete wall 400's wall.
c2. B2 and b3 of the bottom section split wood formwork fair-faced concrete construction method are carried out on the middle section concrete to form a middle section fair-faced concrete wall;
and curing the middle-section fair-faced concrete wall after pouring is finished, wherein the curing time is not less than 7 days, and the curing is preferably performed by adopting a covering film.
In the present embodiment, a plurality of middle-stage concrete constructions can be added by concrete construction.
D, top section concrete construction: and after the middle section fair-faced concrete wall is formed, connecting the wood formwork of the top section with the middle section fair-faced concrete wall through the supporting device, and performing top section concrete construction to obtain the middle section fair-faced concrete wall.
And c, constructing the top section concrete according to the construction method in the step c to form the top section bare concrete wall.
And (3) maintaining the top section of the fair-faced concrete wall after the top section of the fair-faced concrete wall is poured, wherein the maintaining time is not less than 7 days, and the top section of the fair-faced concrete wall is maintained by adopting a covering film preferentially.
The top surface of the top section clear water concrete wall after concrete pouring is flush with the template surface, and the surface primary pulp is polished and leveled. And when concrete is poured, the finished products of the bare concrete wall at the bottom section and the middle section are protected.
Finally, repairing local defects of the bare concrete wall; meanwhile, in order to ensure the durability of the surface colors of the bottom section fair-faced concrete wall 400, the middle section fair-faced concrete wall and the top section fair-faced concrete wall, the protective agent is coated on the bottom section fair-faced concrete wall 400, the middle section fair-faced concrete wall and the top section fair-faced concrete wall.
The bare concrete wall is obtained after the construction method of the loose-spliced wood formwork bare concrete is implemented, the appearance quality of the bare concrete wall is detected, and the detection results are as follows:
TABLE 1. detection result of appearance quality of fair-faced concrete wall
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, e.g., may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments 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.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, other various changes and modifications can be made according to the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the present invention.
Claims (10)
1. A construction method of bare concrete of a split wood template is characterized by comprising the following steps:
preparing a structural member required by a concrete construction process, wherein the structural member comprises a wood template, a caulking strip, a supporting device and a telescopic seam plate, wherein a first through hole is formed in a splicing seam position, and the caulking strip is provided with a second through hole corresponding to the first through hole;
b, sequentially binding steel bars, installing the telescopic seam plates, installing the wood formwork of the bottom section, installing the caulking strips and pouring concrete to obtain the bare concrete wall of the bottom section;
c, after the bottom section fair-faced concrete wall is formed, connecting the wood formwork in the middle section with the bottom section fair-faced concrete wall through the supporting device, and pouring middle section concrete to obtain a middle section fair-faced concrete wall;
and d, after the middle section fair-faced concrete wall is formed, connecting the wood formwork of the top section with the middle section fair-faced concrete wall through the supporting device, and performing top section concrete construction to obtain the top section fair-faced concrete wall.
2. The construction method of the bare concrete of the split wood formwork according to claim 1, wherein the step b comprises the following steps:
b1, sequentially leveling a concrete foundation on the ground to form a foundation concrete surface, carrying out measurement paying-off and wall body steel bar binding on the foundation concrete surface, and mounting the telescopic seam plate on the foundation concrete surface in the wall body steel bar binding stage, wherein the wall body steel bar is cut off by the telescopic seam plate along the vertical direction of the wall body steel bar;
b2., mounting the wood formwork on the surface of the foundation concrete, connecting the wood formwork and the wood formwork to form a bottom section formwork wall with a level top, wherein the bottom section formwork wall comprises a first bottom section formwork wall and a second bottom section formwork wall, the first bottom section formwork wall and the second bottom section formwork wall are respectively arranged on two sides of the wall body reinforcing steel bars, the second through hole is connected with the first through hole through a bolt, so that the caulking strip is mounted at the splicing part where the wood formwork and the wood formwork are connected, the bottom section formwork wall is reinforced by a main rib and a secondary rib, and then the straightness of the bottom section formwork wall is adjusted;
step b3., performing concrete pouring on the bottom of the installed bottom section formwork wall to form a bottom section bare concrete wall.
3. The construction method of the bare concrete of the split wood formwork according to claim 1, wherein the step c comprises the following steps:
step c1, after the wood formwork of the formed bottom section fair-faced concrete wall is dismantled, mounting the supporting device on the bottom section fair-faced concrete wall, wherein the supporting device comprises a first supporting part, a second supporting part and a third supporting part, the second supporting part is a straight strip-shaped plate, the tail ends of the two ends of the second supporting part are respectively connected with the first supporting part and the third supporting part in an anti-parallel mode, the first supporting part is connected with the bottom section fair-faced concrete wall in an attaching mode, the bottom of the wood formwork of the middle section is connected with the second supporting part, the third supporting part is connected with the wood formwork of the middle section in a parallel attaching mode, and the wood formwork of the middle section is limited to move, so that the wood formwork of the middle section is mounted on the bottom section fair-faced concrete wall;
c2., performing middle-section concrete construction according to the step b2 and the step b3 of the bottom-section loose-spliced wood formwork fair-faced concrete construction method to form the middle-section fair-faced concrete wall.
4. The construction method of the bare concrete of the split wood formwork according to claim 3, wherein in the step d, the top section concrete construction is carried out according to the construction method of the step c to form a top section bare concrete wall.
5. The method for constructing as-cast finish concrete for a split wood formwork as claimed in claim 2, wherein in the step b3, before the concrete is poured to form a bottom section as-cast finish concrete wall, a bottom barrier strip is arranged on the outer side of the bottom section formwork wall, and the gap between the bottom barrier strip and the bottom section formwork wall is filled with mortar.
6. The method for constructing as-cast finish concrete by using loose-spliced wood formworks as claimed in claim 2, wherein in the step b3, when the concrete is poured to form the bottom section as-cast finish concrete wall, gravels are embedded in the surface layer of the concrete when the concrete reaches initial setting.
7. The construction method of bare concrete for a loose-jointed wood formwork according to claim 1, wherein after the step d is completed, the protective agent is coated on the bottom section bare concrete wall, the middle section bare concrete wall and the top section bare concrete wall.
8. The method for constructing as-cast finish concrete for a split wood formwork as claimed in claim 2, wherein in the step b2, the step of adjusting the straightness of the formwork wall of the bottom section comprises the following steps: the first bottom section formwork wall top is connected with a first reinforcing plate along the trend of the first bottom section formwork wall top, the second bottom section formwork wall top is connected with a second reinforcing plate along the trend of the second bottom section formwork wall top, the inner side of the first reinforcing plate is connected with the inner side of the second reinforcing plate through a first connecting piece, the outer side of the first reinforcing plate is connected with the outer side of the second reinforcing plate through a second connecting piece, and the straightness of the bottom section formwork wall is adjusted through the inner support of the first connecting piece and the outer receiving of the second connecting piece.
9. The method for constructing as-cast finish concrete for a split wood formwork as claimed in claim 8, wherein the first connecting member used for internally supporting the formwork wall of the bottom section in step b2 is a straight bar-shaped rod, the two ends of the first connecting member are provided with clamping portions, and the first connecting member is connected with the inner sides of the first and second reinforcing plates through the clamping portions.
10. The method for constructing as-cast finish concrete for a split wood formwork as claimed in claim 8, wherein the first reinforcing plate extends in a direction away from the second reinforcing plate to form a first extending platform, the second reinforcing plate extends in a direction away from the first reinforcing plate to form a second extending platform, the second connecting member for externally supporting the formwork wall of the bottom section in the step b2 comprises a connecting rod and a first reinforcing part and a second reinforcing part which are respectively connected with the end of the connecting rod and are not parallel, the first reinforcing part is connected with the first extending platform, and the second reinforcing part is connected with the second extending platform.
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| CN201910180066.6A CN109868923B (en) | 2019-03-11 | 2019-03-11 | Construction method of bare concrete of loose-spliced wood formwork |
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| CN113123215B (en) * | 2021-03-23 | 2022-10-11 | 中铁建工集团有限公司 | Construction method of platform wall and platform wall |
| CN113250349A (en) * | 2021-05-17 | 2021-08-13 | 上海宝冶集团有限公司 | Method for pouring bare concrete special-shaped wall |
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| AU763613B2 (en) * | 1998-09-23 | 2003-07-31 | George Anthony Contoleon | Formwork attachment to frames for concrete walls |
| CN101660314A (en) * | 2009-09-28 | 2010-03-03 | 浙江天力建设集团有限公司 | Construction method for foundation of exposed concrete equipment |
| CN102121310B (en) * | 2011-01-17 | 2012-07-04 | 中建八局第三建设有限公司 | Double column constructional template for large-section ultrahigh steel reinforced clear water concrete and construction method thereof |
| CN102409799B (en) * | 2011-11-25 | 2013-05-29 | 北京市第三建筑工程有限公司 | Fair-faced concrete interlaminar open joint guide wall structure and construction method thereof |
| CN203175032U (en) * | 2013-04-10 | 2013-09-04 | 中建城市建设发展有限公司 | On-site pieced-up bamboo formwork assembly connecting piece and formwork assembly system thereof |
| CN103206089A (en) * | 2013-04-18 | 2013-07-17 | 成军 | Fabricated aluminum alloy formwork system construction method |
| CN103470067B (en) * | 2013-10-08 | 2015-07-15 | 武汉武大巨成结构股份有限公司 | Transformation and construction method used for facing bare concrete of existing building outer wall |
| CN103821366B (en) * | 2014-03-03 | 2016-02-10 | 永升建设集团有限公司 | Clear water concrete metope grooved stereo wood pattern decoration construction method |
| CN104278840A (en) * | 2014-09-26 | 2015-01-14 | 济南城建集团有限公司 | Decorating bare concrete construction method and split bolt hole die for same |
| KR101641335B1 (en) * | 2015-04-30 | 2016-07-20 | 서보산업 주식회사 | Wood gang form and method for constructing concrete building using this same |
| CN106869501A (en) * | 2017-04-10 | 2017-06-20 | 肖煌 | The construction technology of dry concrete wall and realize the forming panel of the construction technology |
| CN108824812A (en) * | 2018-06-11 | 2018-11-16 | 贵州建工集团第建筑工程有限责任公司 | A kind of cast-in-place fair-faced concrete wall pours and maintenance process |
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