CN113931348A - L-shaped precast concrete component and building structure - Google Patents
L-shaped precast concrete component and building structure Download PDFInfo
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- CN113931348A CN113931348A CN202111068329.8A CN202111068329A CN113931348A CN 113931348 A CN113931348 A CN 113931348A CN 202111068329 A CN202111068329 A CN 202111068329A CN 113931348 A CN113931348 A CN 113931348A
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- longitudinal groove
- precast concrete
- lacing wire
- longitudinal
- pair
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 77
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 6
- 239000004567 concrete Substances 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000010276 construction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
- E04B2/68—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete made by filling-up wall cavities
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
- E04B2/66—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete characterised by special cross-section of the elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
Abstract
The application provides L shape precast concrete subassembly and building structure, L shape precast concrete subassembly includes: the side wall of the first prefabricated member is provided with a first longitudinal groove; the side wall or the front wall of the adjacent side of the second prefabricated member is provided with a second longitudinal groove or a transverse hole, and the open end of the first longitudinal groove corresponds to the open end of the second longitudinal groove or the transverse hole; at least a pair of lacing wire, at least a pair of lacing wire includes first lacing wire and second lacing wire, first lacing wire with have the clearance between the second lacing wire, at least a pair of lacing wire longitudinal distribution in first longitudinal groove and/or the longitudinal groove of second. The technical scheme of the application improves the industrialization level of the building structure, improves the stress performance of the joint and saves resources.
Description
Technical Field
The application relates to the technical field of buildings, in particular to an L-shaped precast concrete component and a building structure.
Background
In the existing assembled integral shear wall structure, the connection between prefabricated wall plates mainly adopts the technical scheme that the side overhanging steel bars of prefabricated parts are anchored on the post-cast concrete of vertical joints; when the prefabricated wall panel with the overhanging reinforcing steel bars is produced, the template needs to be grooved and perforated, the reinforcing steel bars are difficult to install, the template amortization is large, the production efficiency is low, and researches show that the template amortization can reach more than 10% of the cost. In the transportation and hoisting stages, the overhanging steel bars are easy to collide and bend, and the straightening process is added; at the prefabricated wallboard installation stage, the overhanging reinforcing bar of adjacent component is disturbed each other, and the back adds the reinforcing bar installation difficulty, and the efficiency of construction is low.
For solving this problem, patent application 201711166174.5 provides a rotatable pre-buried external member and prefabricated assembled wall, and this technique avoids the prefabricated component side to stretch out the reinforcing bar through rotatable pre-buried external member to convenient transportation, installation etc.. But the technical construction is complicated.
The statements in this background section merely disclose technology known to the inventors and do not, of course, represent prior art in the art.
Disclosure of Invention
The application aims at providing an L shape precast concrete subassembly and building structure, solves the preparation inefficiency that the muscle brought is gone out to the prefabricated wallboard of the integral shear wall structure of current assembly, the template amortization is big, and the transportation, the installation degree of difficulty are big to and the problem that overall efficiency and benefit are low.
According to an aspect of the present application, there is provided an L-shaped precast concrete component including: the side wall of the first prefabricated member is provided with a first longitudinal groove; the side wall or the front wall of the adjacent side of the second prefabricated member is provided with a second longitudinal groove or a transverse hole, and the open end of the first longitudinal groove corresponds to the open end of the second longitudinal groove or the transverse hole; at least a pair of lacing wire, at least a pair of lacing wire includes first lacing wire and second lacing wire, first lacing wire with the clearance has between the second lacing wire, at least a pair of lacing wire longitudinal distribution in first vertical recess and/or the vertical recess of second or horizontal hole. Concrete is poured between the first prefabricated member and the second prefabricated member.
According to some embodiments, the L-shaped precast concrete component further comprises at least one connector arranged in a gap between the first and second tie bars, the at least one connector being located in the first and second longitudinal grooves or transverse holes
According to some embodiments, the gap between the first and second tie bars is no greater than 30 mm.
According to some embodiments, the gap between the first and second tie bars is 10mm larger than the connector diameter.
According to some embodiments, the L-shaped precast concrete unit further comprises: at least one indulges the muscle, at least one connecting piece stretches into first lacing wire with the clearance of second lacing wire, at least one indulges the muscle arrange in at least one connecting piece with between at least a pair of lacing wire, and be located one side of the lateral wall of first prefab or second prefab is kept away from to at least a pair of lacing wire.
According to some embodiments, the second longitudinal grooves are arranged on the side walls of the second preform, and the first longitudinal grooves are arranged on the side walls of the first preform, and the first longitudinal grooves and the second longitudinal grooves each have long sides and short sides in a direction perpendicular to the side walls.
According to some embodiments, the second longitudinal grooves are provided on the front wall of the adjacent side of the second preform, and the first longitudinal grooves are provided on the side walls of the first preform.
According to some embodiments, the first longitudinal groove and/or the second longitudinal groove each have a transverse groove therein on a side opposite the open end, the at least one connector being extendable into the transverse grooves through a gap between the first and second tie bars.
According to some embodiments, the gap between the first preform and the second preform is 0-30 mm.
According to an aspect of the application, a building structure is proposed, comprising an L-shaped precast concrete component as described above.
Based on the L-shaped precast concrete assembly and the building structure, no rib is arranged on the side surface of the precast concrete component, so that the problems of low efficiency and large template amortization of the precast concrete component in the manufacturing link are solved, the collision of the steel bars during stacking, transportation and hoisting of the precast concrete component can be avoided, and the efficiency is improved; the connecting piece is hidden in the longitudinal groove when the prefabricated parts are stacked, transported and hoisted, so that the steel bars are prevented from being collided; after the prefabricated parts are installed in place, the connecting pieces extend out of the side faces of the prefabricated parts to ensure the integrity of the node. By adopting the technical measures, the connecting piece is installed in place in a factory or before hoisting, and the steel bar engineering quantity of a construction site is reduced.
Adopt this application precast concrete component side not to go out the muscle, the node can closely splice the connection, reduces on-the-spot template, support and cast in situ concrete.
The key technology of the close splicing connection of the precast concrete components is to ensure that the connecting steel bars are in place. Adopt this application precast concrete component back of taking one's place, remove the connecting piece and stretch out first longitudinal groove to seam opposite side, realize the steel bar connection.
The first longitudinal groove and/or the second longitudinal groove are/is internally provided with the tie bars in pairs, the connecting pieces are clamped among the tie bars when the concrete is prefabricated on the two sides of the connecting groove, and the connecting pieces can be temporarily fixed in the links of transportation, hoisting and the like; after the precast concrete member is in place, when the connecting piece moves, the lacing wire can ensure that the connecting piece is positioned accurately. The stability that the connecting piece is located between the lacing wires is guaranteed, and the stress performance of the seam between the precast concrete members and the construction efficiency are improved.
For a better understanding of the nature and technical content of the present application, reference should be made to the following detailed description and accompanying drawings, which are provided to illustrate the present application and are not intended to limit the scope of the present application in any way.
Drawings
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated herein and constitute part of this disclosure, serve to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are provided to explain the present disclosure and not to limit the present disclosure. In the drawings:
fig. 1-2 show structural schematic diagrams of an L-shaped precast concrete assembly according to an exemplary embodiment of the present application.
Fig. 3 shows a schematic view of the structure of the tie bars of the first preform in the first longitudinal grooves according to an exemplary embodiment of the present application.
Fig. 4 shows a schematic structural view of the tie bars of the first preform on the sidewalls according to an exemplary embodiment of the present application.
Fig. 5-10 show structural schematic views of a second preform according to example embodiments of the present application.
Fig. 11 shows a schematic structure of the transverse holes of the second preform according to an exemplary embodiment of the present application.
Fig. 12-13 show structural schematics of a second preform lay-up connection according to example embodiments of the present application.
Fig. 14 shows a schematic structural view of the first preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
Fig. 15 shows a schematic structural view of the second preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
Fig. 16 shows a schematic view of a structure in which a first preform according to an exemplary embodiment of the present application is provided with transverse grooves.
Fig. 17 shows a schematic view of a structure in which a second preform according to an exemplary embodiment of the present application is provided with transverse grooves.
Fig. 18 illustrates a schematic structural view of an L-shaped precast concrete assembly according to an exemplary embodiment of the present application and a partially enlarged view illustrating a in the drawing.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
At present, the full cast-in-place of the L-shaped shear wall edge member in an assembled high-rise building structure is the main edge member type at present, the field reinforcing steel bar engineering quantity is large, and the template engineering and concrete pouring quantity is large. The L-shaped precast concrete unit proposed in the present application can solve this problem. Whether the connection structure between the prefabricated shear walls in the two directions of the L-shaped prefabricated concrete component is safe and reliable is the key for ensuring the integral stress of the edge member of the L-shaped shear wall.
The preferred embodiments of the present application will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein only to illustrate and explain the present application and not to limit the present application.
Fig. 1-2 show structural schematic diagrams of an L-shaped precast concrete assembly according to an exemplary embodiment of the present application.
As shown in fig. 1-2, according to another exemplary embodiment of the present application, the present application discloses an L-shaped precast concrete assembly, an L-shaped wall node spliced by precast concrete members, comprising a first precast member 100, a second precast member 200, at least one pair of tie bars 103, and at least one connecting member 107; concrete (not shown) is poured between the first prefabricated member 100 and the second prefabricated member 200 after the connecting member 107 is in place
Referring to fig. 2, according to the embodiment of the present application, the second longitudinal grooves 201 are disposed on the sidewalls of the second preform 200, the first longitudinal grooves 101 are disposed on the sidewalls of the first preform 100, and the first longitudinal grooves 101 and the second longitudinal grooves 201 have long sides and short sides in a direction perpendicular to the sidewalls, and are used for splicing the L-shaped connection nodes. In other words, the concrete precast slabs on both sides of the first longitudinal groove 101 and the second longitudinal groove 201 are different in length in a direction perpendicular to the side walls of the precast concrete members. When assembling between two precast concrete members, the long sides are butted with the long sides, and the short sides are butted with the short sides to form an assembled precast member with an angle of 90 degrees, so that the stress performance of the joint is improved.
Fig. 3 shows a schematic view of the structure of the tie bars of the first preform in the first longitudinal grooves according to an exemplary embodiment of the present application.
As shown in fig. 3, the first preform 100 has a first longitudinal groove 101 on a sidewall thereof. At least a pair of lacing wires 103 includes first lacing wire 1031 and second lacing wire 1033, has the clearance between first lacing wire 1031 and the second lacing wire 1033, and at least a pair of lacing wires 103 longitudinal distribution is in first longitudinal groove 101.
Fig. 4 shows a schematic structural view of the tie bars of the first preform on the sidewalls according to an exemplary embodiment of the present application.
Referring to fig. 4, at least one pair of tie bars 103 may be disposed in the first longitudinal groove 101 or the second longitudinal groove 201 (not shown) at the open end of the first longitudinal groove 101 or the second longitudinal groove 201, and the at least one pair of tie bars 103 may be spaced apart from the wall of the precast concrete member. It may be provided on the precast concrete member wall, that is, at the wall of the open end of the first longitudinal groove 101 or the second longitudinal groove 201, flush with the wall surface.
Fig. 5-10 show structural schematic views of a second preform according to example embodiments of the present application.
As shown in fig. 5-6, the second preform 200 has a second longitudinal groove 201 in the side wall or front wall of the adjacent side. The opening of the first longitudinal groove 101 corresponds to the opening of the second longitudinal groove 201. Of course, the concrete member and the second longitudinal groove 201 on the concrete member are not limited to specific dimensions, but may be determined according to the requirements of the stress, the manufacturing, the installation and the like.
As shown in fig. 5, the second preform 200 has a second longitudinal groove 201 in the front wall of the adjacent side. At least one pair of tie bars 103 may be longitudinally distributed at the opening of the second longitudinal groove 201 of the second preform 200. If the second longitudinal grooves 201 are provided on the front wall of the adjacent side of the second preform 200 and the first longitudinal grooves 101 are provided on the side walls of the first preform 100 for splicing the L-shaped connection nodes.
As shown in fig. 6, the second preform 200 has a second longitudinal groove 201 on a sidewall thereof. Optionally, the two sidewalls of the second longitudinal groove 201 are a long side 207 and a short side 209 for splicing the L-shaped connection node. Longitudinally distributed between the long side 207 and the short side 209 at least one pair of lacing wires 103.
Referring to fig. 7, it can be seen that the at least one pair of tie bars 103 includes a first tie bar 1031 and a second tie bar 1033, a gap is provided between the first tie bar 1031 and the second tie bar 1033, and the at least one pair of tie bars 103 is longitudinally distributed in the first longitudinal groove 101 and/or the second longitudinal groove 201.
In other words, the opening of the second longitudinal groove 201 is located on the front wall of the adjacent side of the second preform 200, at least one pair of tie bars 103 may be longitudinally distributed at the opening of the second longitudinal groove 201 of the second preform 200, and a single tie bar is longitudinally arranged at the groove bottom close to the second longitudinal groove 201.
Referring to fig. 8, the opening of the second longitudinal groove 201 is located on the front wall of the adjacent side of the second preform 200, at least one pair of tie bars 103 may be longitudinally distributed and close to the bottom of the second longitudinal groove 201 of the second preform 200, and a single second tie bar 1033 is longitudinally arranged at the opening of the second longitudinal groove 201.
According to the embodiment of the present application, as shown in fig. 9, at least one pair of tie bars 103 is protruded from the precast concrete at both sides of the first longitudinal groove 101 or the second longitudinal groove 201. At least one pair of tie bars 103 may be constructed by U-shaped steel bars, the bottom of the U-shape is located in the first longitudinal groove 101 or the second longitudinal groove 201 to form the first tie bar 1031 or the second tie bar 1033, and the side walls of the U-shape are embedded in the precast concrete at both sides of the first longitudinal groove 101 or the second longitudinal groove 201.
As shown in fig. 10, the first tie bar 1031 or the second tie bar 1033 of the at least one pair of tie bars 103 may also be made of an annular steel bar structure, one side of the annular steel bar structure is exposed in the first longitudinal groove 101 (not shown) or the second longitudinal groove 201, and the other parts are embedded in the precast concrete at two sides of the first longitudinal groove 101 or the second longitudinal groove 201; or the other side wall opposite to the first longitudinal groove 101 or the second longitudinal groove 201 is also provided with a longitudinal groove, the annular reinforcing steel bar part is exposed in the longitudinal groove, and the rest part is hidden in two sides of the first longitudinal groove 101 or the second longitudinal groove 201. The concrete adjacent at least one pair of tie bars 103 is cut away in fig. 9-10 to facilitate the illustration of the tie bar configuration.
Fig. 11 shows a schematic structure of the transverse holes of the second preform according to an exemplary embodiment of the present application. Fig. 12-13 show structural schematics of a second preform lay-up connection according to example embodiments of the present application.
As can be seen with reference to fig. 11-13, at least one connection 107 is arranged in the gap between the first and second tie bars 1031, 1033, the at least one connection 107 being located in the first and second longitudinal grooves or transverse holes 211. The first preform 100 and the second preform 200 are joined together by at least one connecting member 107.
According to the embodiment of the present application, at least one connector 107 is a welded rectangular steel bar ring or a steel bar hoop, and the present application does not limit the specific shape of at least one connector 107, but can be arbitrarily configured according to the needs of building construction.
According to an embodiment of the present application, the gap between the first tie bar 1031 and the second tie bar 1033 is determined according to at least one connector 107 diameter and connector installation requirements. In a common structure, the gap between the tie bars is not more than 30mm, so that the requirement can be met, or the gap between the first tie bar and the second tie bar is 10mm larger than the diameter of the connecting piece. The present application does not limit the diameter of the at least one connection member 107 and the gap between the first and second tie bars 1031, 1033, but may be provided as needed for component manufacturing, construction, etc.
According to an embodiment of the present application, the number of the first tie bars 1031 in a direction perpendicular to the side wall of the first preform or the second preform is at least one.
In addition, the number of the second tie bars 1033 in a direction perpendicular to the sidewall of the first preform or the second preform is at least one.
Here, the number of the first tie bars 1031 and the second tie bars 1033 in the direction perpendicular to the prefabricated wall sidewall may be the same or different, and the specific number thereof is not limited in this application.
As can be seen with reference to fig. 12, the groove bottom of the second longitudinal groove is parallel to the side walls of the second preform. As can be seen with reference to fig. 13, the groove bottom of the second longitudinal groove is parallel to the front wall of the second preform. As can be seen from fig. 12 and 13, the second longitudinal grooves are different in shape.
Fig. 14 shows a schematic structural view of the first preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application. Fig. 15 shows a schematic structural view of the second preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
Referring to fig. 14-15, it can be seen that the first or second precast member constituting the L-shaped precast concrete assembly according to the embodiment of the present application further includes at least one longitudinal rib 105.
At least one connecting piece 107 extends into the gap between the first and second tie bars 1031, 1033, and at least one longitudinal rib 105 is arranged between the at least one connecting piece 107 and the at least one pair of tie bars 103 and is located on the side of the at least one pair of tie bars 103 remote from the side wall of the first preform or the front wall of the second preform. The at least one connecting member 107 is movable in a gap between the first tie bar 1031 and the second tie bar 1033, and the at least one longitudinal bar 105 is bindable to the at least one connecting member 107.
Fig. 16 shows a schematic view of a structure in which a first preform according to an exemplary embodiment of the present application is provided with transverse grooves. Fig. 17 shows a schematic view of a structure in which a second preform according to an exemplary embodiment of the present application is provided with transverse grooves.
Referring to fig. 16-17, according to an embodiment of the present disclosure, the first longitudinal groove 101 and/or the second longitudinal groove 201 have a transverse groove 109 on a side opposite to the open end, and the at least one connecting member 107 can extend into the transverse groove 109 through a gap between the first tie bar 1031 and the second tie bar 1033. When the precast concrete unit is transported and hoisted, part of the length of at least one connecting piece 107 can be hidden in the transverse groove 109 of the first longitudinal groove 101 and/or the second longitudinal groove 201, after the precast concrete unit is hoisted in place, the at least one connecting piece 107 is pushed out to be positioned between the first longitudinal groove 101 and the second longitudinal groove 201, and the precast concrete connecting unit is poured. The precast concrete unit is provided such that, when the length of at least one of the connection members 107 is greater than the depth of the first longitudinal groove 101 or the second longitudinal groove 201, at least one of the connection members 107 partially extends into the lateral groove 109 such that the other end of at least one of the connection members 107 does not extend out of the side wall of the precast concrete unit 100 or the precast concrete unit 200.
According to this application embodiment, L shape precast concrete subassembly still includes the heated board, and the heated board sets up on L shape precast concrete subassembly. The heat-insulating layer can be adhered to the front wall or the rear wall of the precast concrete member, so that the precast concrete member has good heat-insulating property and fire resistance.
According to the embodiment of the application, the connection between the precast concrete units can be in various manners, and the precast concrete unit with at least one pair of tie bars 103 can be connected with the concrete wall with a single tie bar through at least one connecting piece 107. Or 2 precast concrete units with at least one pair of tie bars 103 are connected by at least one connecting piece 107, wherein 1 connecting piece is arranged on 2 pairs of tie bars in the 2 precast concrete units, or 2 connecting pieces are arranged on 2 pairs of tie bars in the 2 precast concrete units, and the connecting pieces can be bound with a plurality of longitudinal bars after the prefabricated units are connected.
The L-shaped precast concrete component also comprises precast concrete members with transverse holes arranged on the side walls or the front walls, the connectors of the precast members span the gaps between the precast members and extend into the transverse holes (not shown in the figure) on the other side of the node, and at least one pair of tie bars are distributed in the transverse holes.
Fig. 18 illustrates a schematic structural view of an L-shaped precast concrete assembly according to an exemplary embodiment of the present application and a partially enlarged view illustrating a in the drawing.
One case of the splicing process of the L-shaped precast concrete assembly is described as follows, first preparing the first precast member and the second precast member as described above, placing at least one pair of tie bars 103 of the first precast member 100 with at least one connecting member 107 hidden in the first longitudinal groove 101 of the precast concrete element, placing at least one longitudinal rib 105 between the at least one connecting member 107 and the at least one pair of tie bars 103 and on the side of the at least one pair of tie bars 103 remote from the side wall of the first precast member so that the at least one connecting member 107 does not protrude from the side wall of the precast concrete element; after the first longitudinal grooves 101 and the second longitudinal grooves 201 of the two precast concrete units are arranged oppositely, at least one connecting piece 107 is pushed out of the first longitudinal groove 101, enters the second longitudinal groove of the other precast concrete unit and is placed on a tie bar of the other precast concrete unit, and at least one connecting piece 107 spans a gap between the two precast concrete units, namely the connecting piece of the precast concrete unit on one side of the L-shaped precast concrete assembly spans the gap between the precast concrete units and extends into the longitudinal groove on the other side of the node; or the connecting pieces of the prefabricated parts on the two sides of the node span the gap between the prefabricated parts and are connected in the longitudinal groove. At least one longitudinal rib 205 is then arranged between the at least one connecting member 107 and the at least one pair of tie bars, see fig. 18. Concrete is poured into the first longitudinal groove and the second longitudinal groove, wherein the distance between two opposite side walls of the two precast concrete units is 0-30 mm, or 30-100 mm, or other distances, and the distance is determined according to requirements of stress, construction and the like, so that the two precast concrete units can be connected together more firmly after the concrete is poured, and finally the two precast concrete units form an L-shaped precast concrete assembly.
According to an aspect of the application, a building structure is proposed, comprising a precast concrete unit of the above L-shape. The building structure comprises a house structure. By adopting the precast concrete member to assemble the building structure, the construction period can be obviously shortened, and the efficiency and the quality can be improved.
Finally, it should be noted that: although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. An L-shaped precast concrete component characterized by comprising:
the side wall of the first prefabricated member is provided with a first longitudinal groove;
the side wall or the front wall of the adjacent side of the second prefabricated member is provided with a second longitudinal groove or a transverse hole, and the opening of the first longitudinal groove corresponds to the opening of the second longitudinal groove or the transverse hole;
at least a pair of lacing wire, at least a pair of lacing wire includes first lacing wire and second lacing wire, first lacing wire with the clearance has between the second lacing wire, at least a pair of lacing wire longitudinal distribution in first vertical recess and/or the vertical recess of second or horizontal hole.
2. The L-shaped precast concrete assembly of claim 1 further comprising at least one connector disposed in a gap between the first and second tie bars, the at least one connector being located in the first and second longitudinal grooves or transverse holes.
3. The L-shaped precast concrete assembly of claim 1 wherein a gap between the first and second tie bars is not more than 30 mm.
4. The L-shaped precast concrete component of claim 2, wherein a gap between the first and second tie bars is 10mm larger than a connector diameter.
5. The L-shaped precast concrete component of claim 2, further comprising:
at least one indulges the muscle, at least one connecting piece stretches into first lacing wire with the clearance of second lacing wire, at least one indulges the muscle arrange in at least one connecting piece with between at least a pair of lacing wire, and be located one side of the lateral wall of first prefab or second prefab is kept away from to at least a pair of lacing wire.
6. The L-shaped precast concrete assembly according to claim 1, wherein the second longitudinal groove is provided on a side wall of the second precast member and the first longitudinal groove is provided on a side wall of the first precast member, and each of the first and second longitudinal grooves has a long side and a short side in a direction perpendicular to the side wall.
7. The L-shaped precast concrete assembly according to claim 1, wherein the second longitudinal groove is provided on a front wall of an adjacent side of the second precast member, and the first longitudinal groove is provided on a side wall of the first precast member.
8. An L-shaped precast concrete assembly according to claim 2, characterized in that the first longitudinal groove and/or the second longitudinal groove has a transverse groove in the side opposite to the open end, into which the at least one connector can protrude through the gap between the first and second tie bars.
9. The L-shaped precast concrete assembly according to claim 1, wherein a gap between the first precast member and the second precast member is 0 to 30 mm.
10. A building structure comprising an L-shaped precast concrete unit according to any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115492305A (en) * | 2022-09-06 | 2022-12-20 | 中南大学 | Key groove connected fully-assembled building composite inner wall board and application thereof |
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