CN113914499A - T-shaped precast concrete component and building structure - Google Patents
T-shaped precast concrete component and building structure Download PDFInfo
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- CN113914499A CN113914499A CN202111070079.1A CN202111070079A CN113914499A CN 113914499 A CN113914499 A CN 113914499A CN 202111070079 A CN202111070079 A CN 202111070079A CN 113914499 A CN113914499 A CN 113914499A
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- longitudinal groove
- precast concrete
- longitudinal
- lacing wire
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 68
- 210000003205 muscle Anatomy 0.000 claims description 5
- 239000004567 concrete Substances 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 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
- 238000013461 design Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
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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
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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
-
- 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
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
Abstract
The application provides a T shape precast concrete subassembly and building structure, T shape precast concrete subassembly includes: the side wall of the first prefabricated member is provided with a first longitudinal groove; the front wall or the side wall 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. 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 a T-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 a T-shaped precast concrete subassembly and building structure, solves the problem that the existing prefabricated wallboard of the assembled integral shear wall structure is low in manufacturing efficiency, large in template amortization, large in transportation and installation difficulty and low in overall efficiency and benefit.
According to an aspect of the present application, there is provided a T-shaped precast concrete component including: the side wall of the first prefabricated member is provided with a first longitudinal groove; the front wall or the side wall 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. Concrete is poured between the first prefabricated member and the second prefabricated member, and the first prefabricated member and the second prefabricated member are connected into a whole.
According to some embodiments, the T-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 longitudinal groove, the second longitudinal groove or the transverse bore.
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 T-shaped precast concrete unit further comprises: at least one is indulged the muscle, at least one connecting piece stretches into first lacing wire with the clearance of second lacing wire, at least one is indulged the muscle and is arranged in at least one connecting piece with between at least a pair of lacing wire, and be located and be close to the tank bottom of first vertical recess or the vertical recess of second.
According to some embodiments, the second longitudinal groove is provided on the front wall of the second preform, the number of the second preforms is one, and the first longitudinal groove is provided on the side wall of the first preform, the at least one connecting piece being arranged within the first longitudinal groove and the second longitudinal groove.
According to some embodiments, the number of the second prefabricated members is two, the second longitudinal grooves are arranged on the side walls of the second prefabricated members, the openings of the second longitudinal grooves of the two second prefabricated members are opposite, the side walls of the two second longitudinal grooves are provided with long sides and short sides in the direction perpendicular to the side walls of the second prefabricated members, and one side of each short side is provided with an opening opposite to the opening of the first longitudinal groove; the first longitudinal groove is arranged on the side wall of the first prefabricated member, and the at least one connecting piece is arranged in the first longitudinal groove and the two second longitudinal grooves to be spliced into a T-shaped precast concrete assembly.
According to some embodiments, the first longitudinal groove and/or the second longitudinal groove each have a transverse groove in a side thereof opposite the opening, the at least one connector being extendable into the transverse groove through a gap between the first and second tie bars.
According to some embodiments, the openings of the second longitudinal grooves or transverse holes are located on the front wall and the rear wall of the second prefabricated member, the openings correspond to the openings of the first longitudinal grooves of the two first prefabricated members, and the at least one connector is located in the first longitudinal grooves and the second longitudinal grooves or transverse holes to splice the cross-shaped prefabricated concrete assembly.
According to an aspect of the application, a building structure is proposed, comprising a T-shaped precast concrete component as described above.
Based on the T-shaped precast concrete assembly and the building structure, no rib is formed on the side surface of the precast concrete component, so that the problems of low efficiency of the precast concrete component manufacturing link and large template amortization are solved, the collision of 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 quantity of reinforcing steel bar projects on a construction site is reduced.
Adopt this application prefab side not to go out the muscle, the node can closely splice the connection, reduces template, support and the cast in situ concrete on scene.
The key technology of the close splicing connection of the prefabricated parts is to ensure that the connecting steel bars are in place. After adopting this application prefab to take one's place, remove the connecting piece and stretch out first vertical recess 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 shows a schematic structural view of a T-shaped precast concrete unit without longitudinal bars according to an exemplary embodiment of the present application.
Fig. 2-3 show schematic structural views of a first preform according to example embodiments of the present application.
Fig. 4-9 show a schematic structural view of a second preform according to an exemplary embodiment of the present application and an enlarged partial view of C, D, E, F, G in fig. 4-8.
Fig. 10-11 show schematic cross-sectional structures of a second preform according to example embodiments of the present application.
Fig. 12 shows a schematic structural view of a first preform arrangement connection according to an exemplary embodiment of the present application.
Fig. 13 shows a schematic structural view of a second preform lay-up connection according to an example embodiment of the present application.
Fig. 14 shows a schematic cross-sectional structure of a first preform having transverse grooves according to an exemplary embodiment of the present application.
Fig. 15 to 16 show a schematic view of a structure of a second preform having transverse grooves according to an exemplary embodiment of the present application and a partially enlarged view of a in fig. 15.
Fig. 17 shows a schematic structural view of the first preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
Fig. 18 shows a schematic structural view of the second preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
Fig. 19 shows a structural schematic diagram of a T-shaped precast concrete unit arrangement longitudinal bar according to an exemplary embodiment of the present application and a partial enlarged schematic diagram of B in the drawing.
Fig. 20 to 24 are schematic structural views showing a second preform of a cross-shaped precast concrete assembly according to an exemplary embodiment of the present application.
Fig. 25-27 show a splice schematic of a cruciform precast concrete assembly according to an example embodiment of the present application.
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.
The assembled shear wall structure is used as an assembled building structure system and has wide application prospect. The T-shaped node of the shear wall structure is applied to an assembled high-rise building structure more, is an important node for ensuring the structure performance, and the design method and the construction measure relate to corresponding specifications.
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 shows a schematic structural view of a T-shaped precast concrete unit without longitudinal bars according to an exemplary embodiment of the present application.
As shown in fig. 1, according to another exemplary embodiment of the present application, the present application discloses a T-shaped precast concrete assembly including 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. The first preform 100 is spliced to the second preform 200 by at least one connecting member 107.
Fig. 2-3 show schematic structural views of a first preform according to example embodiments of the present application.
As shown in fig. 2, the first preform 100 has a first longitudinal groove 101 in 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.
As shown in fig. 3, 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 a position 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 also be provided on the precast concrete element wall, that is, at the wall of the open end of the first longitudinal groove 101 or the second longitudinal groove 201 (not shown in the figure), flush with the wall surface.
Fig. 4-9 show a schematic structural view of a second preform according to an exemplary embodiment of the present application and an enlarged partial view of C, D, E, F, G in fig. 4-8.
As shown in fig. 4 to 8, the front wall or the side wall of the second preform 200 has a second longitudinal groove 201 or a transverse hole 211, the opening of the first longitudinal groove 101 corresponds to the opening of the second longitudinal groove 201 or the transverse hole 211, and the front wall or the side wall (not shown) of the second preform 200 has 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.
According to the embodiment of the present application, if the second longitudinal grooves 201 are provided on the front wall of the second preform 200, the number of the second preform 200 is one, and the first longitudinal grooves 101 are provided on the side walls of the first preform 100, the openings of the first longitudinal grooves 101 are disposed opposite to the openings of the second longitudinal grooves 201, and at least one connecting member is disposed in the first longitudinal grooves 101 and the second longitudinal grooves 201.
As shown in fig. 9, when one second preform 200 is used, a plurality of transverse holes 211 may be formed on the front wall of the second preform 200 along the longitudinal direction, the first longitudinal groove 101 is formed on the side wall of the first preform 100, and the opening of the first longitudinal groove 101 is opposite to the plurality of transverse holes 211.
When the number of the second prefabricated members 200 is two, the second longitudinal grooves 201 are arranged on the side walls of the second prefabricated members 200, the openings of the second longitudinal grooves 201 of the two second prefabricated members 200 are opposite, the side walls of the two second longitudinal grooves 201 are provided with long sides and short sides in the direction perpendicular to the side walls of the second prefabricated members 200, and one side of the short side is provided with an opening opposite to the opening of the first longitudinal groove 101; the first longitudinal groove is arranged on the side wall of the first prefabricated member, and at least one connecting piece is arranged in the first longitudinal groove and the two second longitudinal grooves to splice a T-shaped prefabricated concrete component (not shown in the figure).
Referring to fig. 4, 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. At least one pair of tie bars 103 is arranged at the open end of the second longitudinal groove 201.
Referring to fig. 5, according to the embodiment of the present application, the open end of the second longitudinal groove 201 of the second preform 200 is not provided with the tie bars, and at least one pair of tie bars 103 are respectively disposed at the groove bottoms near the left and right sides. At least one pair of tie bars 103 adjacent the left and right groove bottoms may be located at the same longitudinal height.
Referring to fig. 6, according to the embodiment of the present application, at least one pair of tie bars are longitudinally disposed at the open end of the second longitudinal groove 201 of the second preform 200, and a single tie bar is disposed at the bottom of the groove near the left and right sides, respectively. The longitudinal height of a single lacing wire is the same as the height of a second lacing wire of at least one pair of lacing wires.
Referring to fig. 7, according to the embodiment of the present application, a single tie bar is longitudinally disposed at the open end of the second longitudinal groove 201 of the second preform 200, and at least one pair of tie bars 103 is disposed at the groove bottom near the left and right sides, respectively. The longitudinal height of a single lacing wire is the same as the height of a second lacing wire of at least one pair of lacing wires.
Referring to fig. 8, it can be seen that at least one pair of tie bars 103 is longitudinally arranged at the open end of the second longitudinal groove 201 of the second preform 200 according to the embodiment of the present application. The groove bottom of the second longitudinal groove 201 is opposite to the opening.
Fig. 10-11 show schematic cross-sectional structures of a second preform according to example embodiments of the present application.
As shown in fig. 10, according to the embodiment of the present application, at least one pair of tie bars 103 extends from 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 both sides of the first longitudinal groove 101 or the second longitudinal groove 201.
As shown in fig. 11, 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, one side of the annular steel bar is exposed in the first longitudinal groove 101 or the second longitudinal groove 201, and the other parts are embedded 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. 10-11 to facilitate the illustration of the tie bar configuration.
Fig. 12 shows a schematic structural view of a first preform arrangement connection according to an exemplary embodiment of the present application. Fig. 13 shows a schematic structural view of a second preform lay-up connection according to an example embodiment of the present application.
As shown in fig. 12-13, at least one connector 107 is arranged in the gap between the first and second tie bars 1031, 1033, and the at least one connector 107 is located in the first and second longitudinal grooves 101, 201 or the transverse holes 211 (not shown), and connects the first and second prefabricated members 100, 200 to form a T-shaped prefabricated concrete assembly. At least one connection 107 is arranged between the transverse bore 211 and the first longitudinal groove 101 for splicing a T-shaped precast concrete assembly (not shown in the figure).
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 specific size of the at least one connecting member 107 and the gap between the first and second tie bars 1031, 1033, but may be configured according to the requirements of component manufacturing, construction, etc.
Fig. 14 shows a schematic cross-sectional structure of a first preform having transverse grooves according to an exemplary embodiment of the present application. Fig. 15 to 16 show a schematic view of a structure of a second preform having transverse grooves according to an exemplary embodiment of the present application and a partially enlarged view of a in fig. 15.
As shown in fig. 14-16, according to embodiments of the present application, the first longitudinal groove 101 and/or the second longitudinal groove 201 each have a transverse groove 109 or a longitudinal hidden groove 222 on a side opposite to the open end, as can be seen with reference to fig. 16. The at least one connection member 107 is able to extend into the transverse groove 109 or the longitudinal hidden groove 222 through the gap between the first and second tie bars 1031, 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 or the longitudinal hidden groove 222, 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 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, 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 10.
Fig. 17 shows a schematic structural view of the first preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application. Fig. 18 shows a schematic structural view of the second preform arrangement connectors and longitudinal ribs according to an exemplary embodiment of the present application.
As shown in fig. 17 to 18, the precast concrete units spliced into the T-shaped precast concrete component according to the embodiment of the present application further include at least one longitudinal rib 105.
After the at least one connecting member 107 extends into the gap between the first tie bar 1031 and the second tie bar 1033, the at least one longitudinal bar 105 is disposed between the at least one connecting member 107 and the at least one pair of tie bars 103 and is located at the bottom of the groove close to the first longitudinal groove 101 or the second longitudinal groove 201. 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.
According to this application embodiment, the T shape precast concrete subassembly by precast concrete component concatenation still includes the heated board, and the heated board sets up on precast concrete component. 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.
Fig. 19 shows a structural schematic diagram of a T-shaped precast concrete unit arrangement longitudinal bar according to an exemplary embodiment of the present application and a partial enlarged schematic diagram of B in the drawing.
As shown in fig. 19, the precast concrete units may be connected in various manners according to an embodiment of the present disclosure, and a precast concrete unit having at least one pair of tie bars 103 may be connected to a concrete wall having a single tie bar by at least one connector 107. Two precast concrete units with at least one pair of tie bars 103 may be connected by at least one connector 107, where two pairs of tie bars in the two precast concrete units are arranged as one connector, or two pairs of tie bars in the two precast concrete units are respectively arranged as one connector (not shown in the figure), and the connectors are tied together with a plurality of longitudinal bars after the connection between the precast concrete units.
Referring to fig. 19, it can be seen that one aspect of the splicing process of the T-shaped precast concrete assembly is described as follows, the first precast member 100 and the second precast member 200 described above are prepared first, at least one pair of tie bars 103 of the first precast member 100 are hidden in the first longitudinal groove 101 of the precast concrete element with at least one connecting member 107 therebetween, at least one longitudinal bar 105 is disposed between the at least one connecting member 107 and the at least one pair of tie bars 103, and is positioned at one side of the at least one pair of tie bars 103 far away from the side wall of the first prefabricated member, so that the tie bars do not extend out of the side wall of the prefabricated concrete component, after the first longitudinal grooves 101 and the second longitudinal grooves 201 of the two prefabricated members are oppositely arranged, at least one connecting piece 107 is pushed out of the first longitudinal groove 101, enters the second longitudinal groove, is placed on the lacing wire of the second prefabricated member, then at least one longitudinal rib 205 is arranged between at least one connecting piece 107 and at least one pair of tie bars; concrete is poured into the first longitudinal groove and the second longitudinal groove, and the distance between two side walls of the opening ends of the longitudinal grooves, which are oppositely arranged by the two precast concrete members, is 0-30 mm, or 30-100 mm, or the other side walls; the specific size of the gap is determined according to the stress requirement, the construction convenience and the like. After the concrete is poured, the two precast concrete units can be connected together more firmly, and finally the two precast concrete units form a T-shaped precast concrete assembly.
Fig. 20 to 24 are schematic structural views showing a second preform of a cross-shaped precast concrete assembly according to an exemplary embodiment of the present application.
As shown in fig. 20-24, according to an embodiment of the present application, the openings of the second longitudinal grooves or transverse holes are located on the front and rear walls of the second preform, the openings corresponding to the openings of the first longitudinal grooves of the two first preforms.
At least one connecting piece is positioned in the first longitudinal groove and the second longitudinal groove or the transverse hole and spliced into a cross precast concrete component.
Referring to fig. 20, it can be seen that at least one pair of tie bars 103 are longitudinally arranged at the open ends of the second longitudinal grooves 201 of the second preform 200 at the front wall and the rear wall, respectively, according to the embodiment of the present application.
Referring to fig. 21, it can be seen that at least one pair of tie bars 103 is longitudinally arranged at the open end of the front wall and a single tie bar is longitudinally arranged at the open end of the rear wall of the second longitudinal groove 201 of the second preform 200 according to the embodiment of the present application. The longitudinal height of a single lacing wire is the same as the height of a second lacing wire of at least one pair of lacing wires.
Referring to fig. 22, according to the embodiment of the present application, a plurality of single tie bars are longitudinally arranged at the open ends of the second longitudinal grooves 201 of the second preform 200 at the front wall and the rear wall, respectively.
Referring to fig. 23, it can be seen that at least one pair of tie bars 103 are longitudinally arranged at the open ends of the second longitudinal grooves 201 of the second preform 200 at the front wall and the rear wall, respectively, according to the embodiment of the present application. The second longitudinal groove in fig. 23 is shaped differently from the second longitudinal groove in fig. 20, in which fig. 20 at least one pair of tie bars are arranged on both side walls of the second longitudinal groove. The side walls in fig. 23 are absent of a second longitudinal groove, which connects the front and rear walls of the second preform.
Referring to fig. 24, according to the embodiment of the present application, a plurality of transverse holes 211 may also be longitudinally formed on the front wall of the second preform 200, and the transverse holes 211 communicate with the front wall and the rear wall of the second preform 200, so as to perform a connecting function opposite to the opening of the first longitudinal groove of the first preform.
Fig. 25-27 show a splice schematic of a cruciform precast concrete assembly according to an example embodiment of the present application.
As shown in fig. 25 to 26, the connection between the first and second prefabricated members may be performed in various ways, and the first and second prefabricated members having at least one pair of tie bars 103 may be connected to the concrete wall having a single tie bar through at least one connecting member 107 according to embodiments of the present application. Or the first prefabricated member and the second prefabricated member with at least one pair of the tie bars 103 are connected through at least one connecting piece 107, wherein one connecting piece is arranged on two pairs of the tie bars in the first prefabricated member and the second prefabricated member, or two connecting pieces are arranged on two pairs of the tie bars in the first prefabricated member and the second prefabricated member, and then a plurality of longitudinal bars are utilized to bind the two connecting pieces together.
Referring to fig. 27, one aspect of the splicing process of the prefabricated cross concrete assembly is described as follows, first preparing the first prefabricated member 100 and the second prefabricated member 200, holding at least one pair of tie bars 103 of the first prefabricated member 100 with at least one connecting member 107 hidden in the first longitudinal groove 101 of the first prefabricated member so as not to protrude out of the side wall of the first prefabricated member, pushing out at least one connecting member 107 from the first longitudinal groove 101 after the openings of the first longitudinal groove 101 and the second longitudinal groove 201 are oppositely arranged, and entering the second longitudinal groove of the second prefabricated member to rest on the tie bars, and then arranging at least one longitudinal bar between at least one connecting member 107 and at least one pair of tie bars (not shown); pouring concrete into the first longitudinal groove and the second longitudinal groove, wherein the distance between two opposite walls of the first prefabricated member and the second prefabricated member is 0-30 mm, or 30-100 mm, or the other distance; the specific size of the gap is determined according to the stress requirement, the construction convenience and the like. After the concrete is injected, the first prefabricated member and the second prefabricated member can be connected together more firmly, and finally the first prefabricated member and the second prefabricated member form a cross-shaped prefabricated concrete component.
According to an aspect of the application, a building structure is proposed, comprising a T-shaped precast concrete component as above. The building structure includes a house. By adopting the T-shaped or cross-shaped 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. A T-shaped precast concrete unit characterized by comprising:
the side wall of the first prefabricated member is provided with a first longitudinal groove;
the front wall or the side wall 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 T-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 longitudinal groove, the second longitudinal groove, or a transverse bore.
3. A T-shaped precast concrete assembly according to claim 1, characterized in that a gap between the first and second tie bars is not more than 30 mm.
4. A T-shaped precast concrete component according to claim 2, characterized in that the gap between the first and second tie bars is 10mm larger than the connector diameter.
5. The T-precast concrete unit according to claim 2, further comprising:
at least one is indulged the muscle, at least one connecting piece stretches into first lacing wire with the clearance of second lacing wire, at least one is indulged the muscle and is arranged in at least one connecting piece with between at least a pair of lacing wire, and be located and be close to the tank bottom of first vertical recess or the vertical recess of second.
6. The T-shaped precast concrete assembly according to claim 2, wherein the second longitudinal groove is provided on a front wall of the second precast member, the number of the second precast members is one, and the first longitudinal groove is provided on a side wall of the first precast member, the at least one connector being disposed in the first longitudinal groove and the second longitudinal groove.
7. The T-shaped precast concrete assembly according to claim 2, wherein the number of the second precast members is two, the second longitudinal grooves are provided on the side walls of the second precast members, the openings of the second longitudinal grooves of the two second precast members are opposite, the side walls of the two second longitudinal grooves each have a long side and a short side in a direction perpendicular to the side walls of the second precast members, and one side of the short side has an opening opposite to the opening of the first longitudinal groove;
the first longitudinal groove is arranged on the side wall of the first prefabricated member, and the at least one connecting piece is arranged in the first longitudinal groove and the two second longitudinal grooves to be spliced into a T-shaped precast concrete assembly.
8. A T-shaped precast concrete assembly according to claim 2, characterized in that the first longitudinal groove and/or the second longitudinal groove each have a transverse groove in the side opposite the opening, into which the at least one connector can protrude through the gap between the first and second tie bars.
9. The T-shaped precast concrete assembly according to claim 2, wherein the openings of the second longitudinal grooves or the transverse holes are located on the front wall and the rear wall of the second precast member, the openings correspond to the openings of the first longitudinal grooves of the two first precast members, and the at least one connector is located in the first longitudinal grooves and the second longitudinal grooves or the transverse holes to splice the cross precast concrete assembly.
10. A building structure comprising a T-shaped precast concrete unit as claimed in any one of claims 1 to 9.
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| CN203684399U (en) * | 2014-01-29 | 2014-07-02 | 初明进 | Embedded-column prefabricated part connection node |
| CN103806593A (en) * | 2014-03-11 | 2014-05-21 | 初明进 | Precast concrete member |
| KR20160116274A (en) * | 2015-03-27 | 2016-10-07 | (주)엔아이스틸 | Wing Wall With Integrated Structural |
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