CN114215247A - Processing method of one-way laminated slab joint, building structure and construction method thereof - Google Patents
Processing method of one-way laminated slab joint, building structure and construction method thereof Download PDFInfo
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- CN114215247A CN114215247A CN202111568434.8A CN202111568434A CN114215247A CN 114215247 A CN114215247 A CN 114215247A CN 202111568434 A CN202111568434 A CN 202111568434A CN 114215247 A CN114215247 A CN 114215247A
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- 238000003672 processing method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 71
- 238000003466 welding Methods 0.000 claims abstract description 55
- 238000012986 modification Methods 0.000 claims abstract description 8
- 230000004048 modification Effects 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims description 68
- 238000000034 method Methods 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 13
- 238000010422 painting Methods 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 abstract description 20
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 229920000715 Mucilage Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
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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
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
- E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
- E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
- E04B1/6145—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with recesses in both frontal surfaces co-operating with an additional connecting element
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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
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The invention discloses a processing method of a piece joint of a one-way laminated slab, a building structure and a construction method of the building structure, and belongs to the field of assembly type buildings. According to the processing method, at least part of the metal embedded part is exposed out of the edge of the lower side of the one-way laminated slab and forms a connecting part, and the lower side surface of the connecting part is flush with the lower side surface of the one-way laminated slab; in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing a connecting part of a metal embedded part; after the plurality of unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, a splicing seam is formed between the connecting parts of the metal embedded parts at the corresponding positions; after the seam is filled in by a welding mode, the formed welding seam is subjected to surface modification treatment, so that the lower side surface of the welding seam is flush with the lower side surface of the metal embedded part, the seam between the unidirectional laminated plates is eliminated, mortar/mortar is not required to be filled in the seam, the seam of the unidirectional laminated plates is not prone to cracking and bulging, and higher flatness can be maintained for a longer time.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to a method for processing a spliced seam of a one-way laminated slab, a building structure and a construction method of the building structure.
Background
In the field of fabricated buildings, the laminated slabs are fabricated integral slabs formed by laminating factory-prefabricated slabs and cast-in-place reinforced concrete layers, are divided into unidirectional laminated slabs and bidirectional laminated slabs, and are suitable for high-rise buildings and large-bay buildings with high requirements on overall rigidity. The two-way composite slab is characterized in that the two-way composite slab is a composite slab with connecting steel bars arranged on the plate sides, the connecting steel bars of two adjacent two-way composite slabs are mutually inserted during construction, the overlapping length of the connecting steel bars is not less than 10d after the connecting steel bars are inserted into the two sides, and d is the diameter of the connecting steel bars; after the two-way superimposed sheet is spliced, the seam is processed in a post-pouring belt mode and is formed into an integral seam, and the lower side surface of the two-way superimposed sheet is not prone to cracking, bulging and the like due to the integral seam between the two-way superimposed sheets.
Compared with a bidirectional composite slab, the unidirectional composite slab adopts the separated joint, namely after the unidirectional composite slab is densely spliced, the unidirectional composite slab is not provided with connecting steel bars on one side of the spliced joint, and after the cast-in-place layer is poured, the board sides of the unidirectional composite slab are not connected. Therefore, in the normal use process, the building structure at the abutted seam of the one-way composite slab is easy to crack, bulge and the like, and the flatness of the lower side surface of the building structure floor slab is reduced, so that the appearance is reduced.
To solve the above problems, the prior art discloses some solutions. For example, chinese patent application No. 2018211440761 discloses various prefabricated floors, prefabricated floor splicing structures and laminated floors. The surface of the splicing end of the prefabricated floor slab is provided with an inner groove, and after the adjacent prefabricated floor slabs are spliced, the adjacent inner grooves are used for installing and fixing a connecting plate. This application has improved the structural strength of piece department through the mode of at recess internal fixation connecting plate, improves the holistic rigidity of building structure, but the border department of connecting plate and precast floor slab recess can form the gap, and the building structure of this gap department, especially whitewash the layer, phenomenons such as fracture, swell still take place easily.
For another example, chinese patent application No. 2020225598941 discloses a joint structure of tight-spliced laminated slabs having embedded parts, in which embedded parts are respectively provided on end surfaces of adjacent laminated slabs that are spliced to form a joint, and the embedded parts corresponding to the adjacent laminated slabs are fixedly connected to each other to form a rigid connection structure at the joint. This application utilizes the built-in fitting that one-way superimposed sheet board edge department set up to realize connecting, and it is only to improve the joint strength between the one-way superimposed sheet in essence, can only avoid the fracture that floor stress brought.
Therefore, after the unidirectional composite slab in the prior art is densely spliced and poured to form a floor slab, a gap perpendicular to the slab surface is still formed on the lower side surface, and the thickness of the painting layer at the gap is higher than that of the painting layers at other positions of the spliced seam, so that after the floor slab is heated and damped, the expansion and deformation degrees of the painting layers are greatly different, and finally, the spliced seam of the unidirectional composite slab is easy to crack and bulge.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects that a whitewashing layer is easy to crack and bulge at the joints of unidirectional laminated slabs in the prior art, provides a treatment method of the joints of the unidirectional laminated slabs, a building structure and a construction method of the building structure, and aims to reduce the probability that the whitewashing layer cracks and bulges at the joints of the unidirectional laminated slabs.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to a processing method of a piece joint of a one-way laminated slab, wherein a metal embedded part is arranged in the one-way laminated slab, at least part of the metal embedded part is exposed out of the edge of the lower side of the one-way laminated slab and forms a connecting part, and the lower side surface of the connecting part is level to the lower side surface of the one-way laminated slab;
in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing the connecting part of the metal embedded part; after a plurality of the unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, splicing seams are formed between the connecting parts of the metal embedded parts at the corresponding positions; and after the abutted seams are filled in by utilizing a welding mode, the formed welding seams are subjected to surface modification treatment, so that the lower side surfaces of the welding seams are flush with the lower side surfaces of the metal embedded parts.
The invention relates to a processing method of a piece joint of a one-way superimposed sheet, wherein a metal embedded part is arranged in the one-way superimposed sheet, and a step structure is formed on the lower side surface of the one-way superimposed sheet; exposing at least part of the metal embedded part to the edge of the lower side of the one-way laminated slab to form a connecting part, wherein the lower side of the connecting part is flush with the concave plane of the step structure;
in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing the connecting part of the metal embedded part; after a plurality of the unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, splicing seams are formed between the connecting parts of the metal embedded parts at the corresponding positions; and after the abutted seams are filled in by utilizing a welding mode, the formed welding seams are subjected to surface modification treatment, so that the lower side surfaces of the welding seams are flush with the lower side surfaces of the metal embedded parts.
Further, the method comprises the following steps of,
step one, closely splicing a plurality of unidirectional superimposed sheets to form a splicing seam between connecting parts of the metal embedded parts at corresponding positions in two adjacent unidirectional superimposed sheets;
filling the abutted seams by using a welding mode, and forming welding seams; then, the lower side surface of the welding seam is made to be level with the lower side surface of the metal embedded part in a face trimming processing mode;
and thirdly, performing painting construction on the connecting parts and the welding seams formed between the adjacent connecting parts.
Further, before the third step, a step of burying a crack-resistant net at the seam is also included.
Further, in the first step, the width of the seam is less than or equal to 5 mm.
Further, in the first step, notches are formed in the metal embedded parts at the positions of the connecting parts, and the notches of two adjacent metal embedded parts form a welding port together; in the second step, welding is carried out at the position of the welding port so as to fill the abutted seam.
The building structure comprises a plurality of unidirectional composite slabs, wherein a splicing seam is formed between every two adjacent unidirectional composite slabs, and the splicing seams are processed by the processing method.
According to the construction method of the building structure, after the plurality of unidirectional composite slabs are closely spliced, the splicing seams between the adjacent unidirectional composite slabs are processed by the processing method.
Furthermore, after a plurality of unidirectional composite slabs are closely spliced, binding the truss reinforcing steel bars of the unidirectional composite slabs, and then pouring concrete to form a cast-in-place layer; and after the concrete of the cast-in-place layer is solidified, processing the abutted seams between the adjacent unidirectional composite slabs by using the processing method.
Further, after a plurality of unidirectional superimposed sheets are closely spliced, processing the spliced seams between the adjacent unidirectional superimposed sheets by using the processing method; and binding the truss steel bars of the unidirectional composite slab, and then pouring concrete to form a cast-in-situ layer.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) the invention relates to a processing method of a piece joint of a one-way laminated slab, wherein a metal embedded part is arranged in the one-way laminated slab, at least part of the metal embedded part is exposed out of the edge of the lower side of the one-way laminated slab and forms a connecting part, and the lower side of the connecting part is level to the lower side of the one-way laminated slab; in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing a connecting part of a metal embedded part; after the plurality of unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, a splicing seam is formed between the connecting parts of the metal embedded parts at the corresponding positions; after the seam is filled by a welding mode, the formed welding seam is subjected to surface modification treatment, so that the lower side surface of the welding seam is flush with the lower side surface of the metal embedded part, the seam between the unidirectional laminated plates is eliminated, mortar/mortar does not need to be filled in the seam, the reason that the plastering layer is easy to crack and bulge due to deformation of the mortar/mortar layer after being heated and damped is eliminated, and the seam of the unidirectional laminated plate can keep higher flatness for a longer time.
(2) According to the building structure, after the abutted seams between the unidirectional superposed plates are treated by the treatment method, the plastering layer is not easy to crack or bulge at the abutted seams between the unidirectional superposed plates, high flatness can be maintained for a long time, and the whole attractiveness is high.
Drawings
FIG. 1 is a schematic representation of the processing steps of the present invention;
FIG. 2 is a schematic structural view of the building structure of the present invention;
FIG. 3 is a schematic structural view of a unidirectional laminate of the present invention.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
In the related field, when a floor slab of a floor building structure is constructed, construction is often completed by adopting a mode of pouring a cast-in-place layer after 100 pieces of unidirectional laminated slabs are densely spliced. However, since the unidirectional laminated slab 100 is provided with the reinforcing bars only at the side edges connected to other structures such as a beam, the connecting reinforcing bars are not generally provided between the unidirectional laminated slab 100 and the unidirectional laminated slab 100, and after the unidirectional laminated slab 100 and the unidirectional laminated slab 100 are closely spliced, a patchwork having a width of about 10mm may exist between the unidirectional laminated slab 100 and the unidirectional laminated slab 100.
In the prior art, it is common practice to fill the joints between the unidirectional laminated slab 100 and the unidirectional laminated slab 100 with mortar or mucilage, and to smooth the lower side of the floor slab, and then to paint the joints to eliminate the joints from the appearance. However, on the one hand, the expansion coefficient of mortar and mortar after heating/wetting is different from that of the material of the plastering layer 300; on the other hand, at the piece, mortar layer/mortar layer's thickness is showing higher than other positions, and these two reasons all can lead to whitewash layer 300 to take place phenomenons such as fracture, swell easily in the piece, have seriously influenced the roughness and the wholeness of floor downside, have reduced the impression.
In order to solve the above problems, the present embodiment provides a method for processing a patchwork of a unidirectional laminated slab. After the unidirectional composite slabs 100 are closely spliced, filling the spliced seam between the unidirectional composite slabs 100 and the unidirectional composite slabs 100 in a welding mode, and forming a welding seam at the spliced seam; thereafter, the weld is subjected to a surface modification process so that the lower side surface of the weld is flush with the lower side surface of the unidirectional laminate sheet 100.
In the present embodiment, the seam between the unidirectional laminated slab 100 and the unidirectional laminated slab 100 is filled by welding, which can improve the connection strength between the unidirectional laminated slab 100 and the unidirectional laminated slab 100; on the other hand, even if mortar is filled on the lower side surface of the floor slab, the mortar layer is not formed at the joint between the unidirectional composite slab 100 and the unidirectional composite slab 100, so that after the floor slab is heated and wetted, the plastering layer 300 is not easy to crack and bulge due to different expansion degrees of the mortar layer, the floor slab after the joint is treated by the treatment method of the embodiment, the plastering layer 300 on the lower side surface can keep high flatness for a long time, and the integral impression of the building structure is improved.
Specifically, in order to realize the welded connection between the unidirectional composite slab 100 and the unidirectional composite slab 100, the metal embedded part 110 may be first set at a designed position during the forming process of the unidirectional composite slab 100, and then concrete is poured, so that the metal embedded part 110 can form a welding foundation of the unidirectional composite slab 100 after the unidirectional composite slab 100 is formed.
More specifically, the metal embedded parts 110 can be disposed in the unidirectional composite slab 100, and at least a portion of the metal embedded parts 110 can be exposed to an edge of the lower side of the unidirectional composite slab 100, specifically, an edge of the unidirectional composite slab 100 adjacent to the unidirectional composite slab 100. The part of the metal embedded part 110 exposed out of the lower side edge of the unidirectional composite slab 100 is a connecting part, and the lower side surface of the connecting part is level with the lower side surface of the unidirectional composite slab; meanwhile, in the lower side of the unidirectional laminated slab 100, the connection portion of the metal embedment 110 can fully cover at least one of the edges of the unidirectional laminated slab 100. The unidirectional composite slab 100 on two sides of the floor slab can be provided with metal embedded parts 110 near the edges of the inner side and the lower side, and the edges of the metal embedded parts 110 can be exposed out of the edges of the inner side and the lower side of the unidirectional composite slab 100 and can fully cover the edges of the inner side and the lower side of the unidirectional composite slab 100; the one-way composite slab 100 located in the middle of the floor slab may have a metal embedded part 110 at the lower edge of the side where the connecting steel bars are not located, that is, the one-way composite slab 100 may have one metal embedded part 110 at each side corresponding to the other two one-way composite slabs 100 on the left and right. Of the two metal embedded parts 110, one metal embedded part 110 is located on the left side, and the connecting part completely covers the left edge of the lower side of the unidirectional laminated slab 100; another metal embedment member 110 is positioned at the right side, and the connecting portion entirely covers the right edge of the lower side of the unidirectional laminate 100.
As a specific example, the processing method of the present embodiment may include the following steps:
step S1, closely splicing the plurality of unidirectional composite slabs 100, so that a splice is formed between two adjacent unidirectional composite slabs 100, that is, a splice is formed between the connecting portions of the metal embedded parts 110 at the corresponding positions in two adjacent unidirectional composite slabs 100.
In the step, if the width of the abutted seam is large, on one hand, the integral structural strength of the floor slab is not facilitated, and potential safety hazards exist; on the other hand, after the width of the abutted seam is larger than the maximum width which can be processed by the welding process in the prior art, a welding seam with high flatness, high stability and high strength is difficult to form in a welding mode, so that the width of the abutted seam can be smaller than or equal to 5 mm.
Step two S2, filling the abutted seams formed between the two unidirectional composite slabs 100 by using a welding mode, and forming welding seams 112 between the metal embedded parts 110 of the two unidirectional composite slabs 100; then, the lower side of the weld 112 is trimmed by means of a trimming process so that the lower side of the weld 112 is flush with the lower side of the metal embedment 110, that is, the lower side of the unidirectional laminate 100.
Step three, S3, performing painting construction on the connecting parts and the welding seams formed between the adjacent connecting parts; meanwhile, the lower side surface of the whole unidirectional laminated slab 100 is painted, and the joint treatment of the unidirectional laminated slab 100 is completed.
As a further optimization of the present embodiment, a crack-resistant net 310 may be buried in the joint between the unidirectional laminate 100 and the unidirectional laminate 100, and the crack-resistant net 310 may further improve the crack-resistant effect of the plastering layer 300. The anti-cracking net 310 may be made of stainless steel, resin, or any other material capable of improving the anti-cracking effect of the painting layer 300.
The anti-crack net 310 may be installed at the joint between the unidirectional composite slab 100 and the unidirectional composite slab 100 before the third step, that is, the third step of the embodiment is to embed the anti-crack net 310 at the joint between the unidirectional composite slab 100 and the unidirectional composite slab 100, and then perform painting construction on the connecting portions and the welding seams formed between the adjacent connecting portions; meanwhile, the lower side surface of the whole unidirectional laminated slab 100 is painted, and the joint treatment of the unidirectional laminated slab 100 is completed.
As a further optimization of the embodiment, in order to facilitate the welding process on the metal embedded parts 110 of two adjacent unidirectional laminated slabs 100, the metal embedded parts 110 may be provided with notches 113 at the positions of the connecting portions, and the notches 113 may be arranged along the length direction of the metal embedded parts 110, that is, along the side of the unidirectional laminated slab 100 where no connecting steel bar is arranged. After two adjacent unidirectional superimposed plates 100 are closely spliced, the notches 113 on the metal embedded parts 110 are formed into welding openings together.
In the second step of the present embodiment, when the patchwork formed between the two unidirectional laminates 100 is filled by welding, the welding process is performed at the position of the welding opening, and the weld 112 is formed between the metal embedded parts 110 of the two unidirectional laminates 100.
As another specific example, the lower side surfaces of the unidirectional composite slabs 100 may be provided with stepped structures at positions corresponding to the metal embedded parts, and after two adjacent unidirectional composite slabs 100 are closely spliced, the connecting parts of the metal embedded parts 110 of the two unidirectional composite slabs 100 are welded to form a splice, so that the stepped structures of the two unidirectional composite slabs 100 together form an installation groove for embedding the anti-crack net 310. The metal embedded part 110 is at least partially exposed at the edge of the lower side of the unidirectional laminated slab 100 and is formed as a connecting part, and the lower side of the connecting part can be flush with the concave plane 102 of the step structure.
Specifically, in this embodiment, the processing method for the joints of the unidirectional laminate 100 may include the following steps:
firstly, closely splicing a plurality of unidirectional composite slabs 100 to form a splice between two adjacent unidirectional composite slabs 100, namely, in two adjacent unidirectional composite slabs 100, a splice is formed between connecting parts of metal embedded parts 110 at corresponding positions.
Filling a spliced seam formed between the two unidirectional laminated slabs 100 by using a welding mode, and forming a welding seam 112 between the metal embedded parts 110 of the two unidirectional laminated slabs 100; then, trimming the lower side surface of the welding seam 112 by means of a trimming process, so that the lower side surface of the welding seam 112 is flush with the lower side surface of the metal embedded part 110, namely flush with the lower side surface of the unidirectional laminated slab 100; the step structures of two adjacent unidirectional composite boards 100 form a mounting groove together.
Step three, firstly, embedding the anti-crack net 310 in a mounting groove formed between two adjacent unidirectional composite slabs 100, namely embedding the anti-crack net 310 in a splicing seam between two adjacent unidirectional composite slabs 100; then, performing painting construction on the connecting parts and the welding seams formed between the adjacent connecting parts; meanwhile, the lower side surface of the whole unidirectional laminated slab 100 is painted, and the joint treatment of the unidirectional laminated slab 100 is completed.
In the third step, mortar or mucilage can be used for filling the mounting groove embedded with the anti-crack net; and then, performing painting construction on the connecting parts and the welding seams formed between the adjacent connecting parts. Although, this embodiment can fill mortar/cement in the installation groove, because the lower side of the welding seam 112 is level with the lower side of the metal embedded part 110, the thickness of the mortar layer/cement layer is consistent, and the width of the installation groove can reach more than 100mm, compared with the prior art in which the mortar layer/cement layer with the width of about 5mm at the edge joint is obviously thicker than the mortar layer/cement layer at other positions, the mortar layer/cement layer in the installation groove will not be deformed to different degrees due to heating and moisture, and thus the plastering layer 300 is not easy to crack and bulge.
In the following, the following description is given,
referring to fig. 2, the present embodiment also provides a building structure. Specifically, in the building structure of the present embodiment, the floor slab is formed by in-situ casting after a plurality of unidirectional superimposed sheets 100 are densely spliced. The seams formed between adjacent unidirectional laminates 100 can be treated by the treatment method of the present embodiment.
Specifically, the construction method of the building structure of the present embodiment is to closely splice a plurality of unidirectional composite slabs 100, bind the truss reinforcements of the unidirectional composite slabs 100, and then pour concrete to form a cast-in-place layer 200; after the concrete of the cast-in-place layer is solidified, the processing method of the embodiment is used for processing the abutted seams between the adjacent unidirectional composite slabs 100.
In addition, the joints between the adjacent unidirectional composite slabs 100 may be processed before the cast-in-place layer is cast with concrete. The specific construction method is that after a plurality of unidirectional superimposed sheets 100 are closely spliced, the splicing seams between adjacent unidirectional superimposed sheets 100 are processed by the processing method of the embodiment; and then, binding the truss reinforcing steel bars of the unidirectional composite slab 100, pouring concrete to form a cast-in-place layer 200, and finally painting the lower side surface of the floor slab to form a painting layer 300.
Referring to fig. 3, in order to further optimize the building structure of the present embodiment, in the unidirectional laminated slab 100, the metal embedded parts 110 may be square steel, angle steel, or round steel. When the metal embedded part 110 is square steel or angle steel, the lower side surface of the square steel/angle steel can be flush with the lower side surface of the unidirectional laminated slab 100, and when the unidirectional laminated slab 100 is provided with the step structure 101, the lower side surface of the square steel/angle steel can be flush with the concave plane 102; when the metal embedded part 110 is a round steel, the lowest point of the metal embedded part 110 may be flush with the lower side surface of the unidirectional laminated slab 100, and when the unidirectional laminated slab 100 is provided with the step structure 101, the lowest point of the round steel may be flush with the concave plane 102.
The metal embedded part 110 may be provided with an anchoring bar 111, and the anchoring bar 111 is used to improve the connection strength between the metal embedded part 110 and the concrete of the unidirectional laminated slab 100, and the shape of the anchoring bar 111 is not particularly limited.
Additionally, a film 140 can be disposed on the metallic embedment 110, the film 140 being attached to the metallic embedment 110. The film 140 can prevent the surface of the metallic embedded part 140 from adhering to concrete during the molding of the unidirectional laminated slab 100; the film 140 may be torn off before the unidirectional laminate 100 is welded.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. A processing method for the abutted seams of one-way superimposed sheets is characterized by comprising the following steps: a metal embedded part is arranged in the unidirectional laminated slab, at least part of the metal embedded part is exposed out of the edge of the lower side of the unidirectional laminated slab and forms a connecting part, and the lower side surface of the connecting part is level to the lower side surface of the unidirectional laminated slab;
in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing the connecting part of the metal embedded part; after a plurality of the unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, splicing seams are formed between the connecting parts of the metal embedded parts at the corresponding positions; and after the abutted seams are filled in by utilizing a welding mode, the formed welding seams are subjected to surface modification treatment, so that the lower side surfaces of the welding seams are flush with the lower side surfaces of the metal embedded parts.
2. A processing method for the abutted seams of one-way superimposed sheets is characterized by comprising the following steps: a metal embedded part is arranged in the one-way laminated slab, and a step structure is formed on the lower side surface of the one-way laminated slab; exposing at least part of the metal embedded part to the edge of the lower side of the one-way laminated slab to form a connecting part, wherein the lower side of the connecting part is flush with the concave plane of the step structure;
in the lower side of the unidirectional laminated slab, at least one edge is fully covered by utilizing the connecting part of the metal embedded part; after a plurality of the unidirectional superimposed sheets are closely spliced, for two adjacent unidirectional superimposed sheets, splicing seams are formed between the connecting parts of the metal embedded parts at the corresponding positions; and after the abutted seams are filled in by utilizing a welding mode, the formed welding seams are subjected to surface modification treatment, so that the lower side surfaces of the welding seams are flush with the lower side surfaces of the metal embedded parts.
3. The method for processing the abutted seam of the unidirectional superimposed sheet according to claim 1 or 2, wherein: comprises the following steps of (a) carrying out,
step one, closely splicing a plurality of unidirectional superimposed sheets to form a splicing seam between connecting parts of the metal embedded parts at corresponding positions in two adjacent unidirectional superimposed sheets;
filling the abutted seams by using a welding mode, and forming welding seams; then, the lower side surface of the welding seam is made to be level with the lower side surface of the metal embedded part in a face trimming processing mode;
and thirdly, performing painting construction on the connecting parts and the welding seams formed between the adjacent connecting parts.
4. The method for processing the abutted seams of the unidirectional superimposed sheets as claimed in claim 3, wherein: before the third step, a step of burying a crack-resistant net at the abutted seams is further included.
5. The method for processing the abutted seams of the unidirectional superimposed sheets as claimed in claim 3, wherein: in the first step, the width of the seam is less than or equal to 5 mm.
6. The method for processing the abutted seams of the unidirectional superimposed sheets as claimed in claim 3, wherein: in the first step, notches are formed in the metal embedded parts at the positions of the connecting parts, and the notches of two adjacent metal embedded parts form a welding port together; in the second step, welding is carried out at the position of the welding port so as to fill the abutted seam.
7. A building structure characterized by: the method comprises a plurality of unidirectional superimposed sheets, wherein a splicing seam is formed between every two adjacent unidirectional superimposed sheets, and the splicing seam is processed by the processing method as claimed in any one of claims 1 to 6.
8. A construction method of a building structure is characterized in that: closely jointing a plurality of unidirectional superimposed sheets, and then treating the joints between the adjacent unidirectional superimposed sheets by using the treatment method as claimed in any one of claims 1 to 6.
9. A method of constructing a building structure according to claim 8, wherein: after a plurality of unidirectional superimposed sheets are densely spliced, binding truss reinforcing steel bars of the unidirectional superimposed sheets, and then pouring concrete to form a cast-in-place layer; and after the concrete of the cast-in-place layer is solidified, treating the abutted seams between the adjacent unidirectional composite slabs by using the treatment method of any one of claims 1 to 6.
10. A method of constructing a building structure according to claim 8, wherein: closely splicing a plurality of unidirectional superimposed sheets, and then processing the spliced seams between the adjacent unidirectional superimposed sheets by using the processing method of any one of claims 1 to 6; and binding the truss steel bars of the unidirectional composite slab, and then pouring concrete to form a cast-in-situ layer.
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Application publication date: 20220322 |