CN211690880U - Rotatory buckle formula connected node of precast concrete shear force wall assembly - Google Patents
Rotatory buckle formula connected node of precast concrete shear force wall assembly Download PDFInfo
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- CN211690880U CN211690880U CN201922016125.4U CN201922016125U CN211690880U CN 211690880 U CN211690880 U CN 211690880U CN 201922016125 U CN201922016125 U CN 201922016125U CN 211690880 U CN211690880 U CN 211690880U
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Abstract
The utility model discloses a prefabricated concrete shear wall assembly rotating buckle type connecting node, which comprises an upper prefabricated shear wall, a lower prefabricated shear wall, a rotating bayonet fastener and a seam connecting layer, wherein the ends of longitudinal stress steel bars pre-embedded in the wall body are provided with amplifying jolting heads; the lower end of the upper prefabricated shear wall is provided with a first hole downwards along the direction of the longitudinal stress steel bar; the longitudinal stressed steel bars of the lower prefabricated shear wall comprise extended steel bars extending out of the upper surface of the lower prefabricated shear wall, and the enlarged upset heads extending out of the ends of the steel bars are inserted into the first holes and are butted with the enlarged upset heads corresponding to the ends of the longitudinal stressed steel bars; two side surfaces of the upper prefabricated shear wall are provided with second holes at positions corresponding to the upper ends of the first holes; the rotary bayonet fastener is installed into the second hole to clamp the two butted enlarged heading heads. The utility model discloses exempt from to use the wet operation of a large amount of templates and concrete, broken away from the technical requirement restriction to the site operation workman, simple structure effectively realizes the transmission of pressing of drawing of the upper and lower direction of load.
Description
Technical Field
The utility model belongs to the technical field of civil engineering building structure technique and specifically relates to a rotatory buckle formula connected node of precast concrete shear force wall assembly is related to.
Background
The fabricated building is a building fabricated on the construction site by using prefabricated components, and has the advantages of high construction speed, small restriction by climatic conditions, labor saving and building quality improvement. The precast concrete shear wall structure is widely applied, and in the precast concrete shear wall structure, the connection between precast concrete walls is an important part of the structure and is also the most sensitive and critical part, and the safety, the anti-seismic performance, the durability and the functionality of the structure are directly influenced.
The steel bar connection between the traditional precast concrete shear walls is mainly through mechanical connection, steel bar welding or sleeve grouting connection, but the connection procedure is complex, the cost is higher, and higher quality assurance system requirements are required, thus the popularization and application of the fabricated shear wall structure are seriously influenced. The existing sleeve grouting connection method needs to ensure the stability of the respective quality of a grouting sleeve and grouting material, the matching performance of the grouting sleeve and the grouting material and the effective exertion of the grouting sleeve and the grouting material, depends on the construction quality level on site, has high requirements on the quality of workers and the technical level, and can not effectively ensure or inspect the quality requirements such as grouting compactness and the like after construction.
SUMMERY OF THE UTILITY MODEL
For solving foretell technical problem, the utility model provides a rotatory buckle formula connected node of precast concrete shear force wall assembly, the connection that the connection between the upper and lower prefabricated wall body was realized to the connection upset head portion of the rotatory bayonet socket fastener card of design upper and lower part wall body embedded bar, effectively realizes pulling of the upper and lower direction of load and presses the transmission, has avoided the wet operation of a large amount of templates and concrete that uses among the traditional construction methods, has broken away from the technical requirement restriction to the site work workman.
The utility model provides a pair of rotatory buckle formula connected node of precast concrete shear force wall assembly's technical scheme is: the prefabricated concrete shear wall comprises an upper prefabricated shear wall body, a lower prefabricated shear wall body, a rotary bayonet fastener and a seam connection layer, wherein the prefabricated shear wall body is a reinforced concrete wall body, longitudinal stress steel bars and horizontal construction steel bars are pre-embedded in the prefabricated shear wall body, the end parts of the longitudinal stress steel bars are provided with amplifying heading heads, the lower end of the upper prefabricated shear wall body is vertically provided with a plurality of first holes, and the first holes extend into the upper prefabricated shear wall body along the direction of the longitudinal stress steel bars; the longitudinal stress steel bars of the lower prefabricated shear wall comprise extended steel bars extending out of the upper surface of the lower prefabricated shear wall; the extending steel bars penetrate through the first holes, and the amplifying upset heads at the upper end parts of the extending steel bars are in butt joint with the amplifying upset heads at the end parts of the longitudinal stressed steel bars pre-buried in the upper prefabricated shear wall; a plurality of second holes are formed in two side faces of the upper prefabricated shear wall, and the reserved positions of the second holes and the upper end position of the first hole keep the same height; the rotary buckle fastener is installed in the second hole to clamp the two amplifying upset heads butted with the upper end of the first hole.
As the improvement of the utility model, the length that stretches out the reinforcing bar that the vertical reinforcing bar of lower part precast shear wall stretched out the upper surface with the longitudinal length of first hole is corresponding.
As an improvement of the utility model, the longitudinal stress steel bars correspond to the first holes one by one; the longitudinal stress steel bars correspond to the holes one by one.
As the improvement of the utility model, the prefabricated shear force wall in upper portion with the tip of the prefabricated shear force wall in lower part all is wrapped up by reinforcing bar net piece.
As an improvement of the utility model, the first hole with the second hole is clogged closely knit through high strength concrete.
As an improvement of the utility model, the rotary bayonet fastener is a high-strength alloy steel rotary bayonet fastener.
As an improvement of the utility model, the seam connecting layer is composed of 20mm thick fine stone concrete.
The utility model discloses technical scheme is for prior art's beneficial effect:
this kind of structural style's a rotatory buckle formula connected node of precast concrete shear force wall assembly, a structure is simple, and design benefit, wet operation to a large amount of templates and concrete that use in the traditional construction mode, take rotatory bayonet fastener to block the connection heading portion of upper and lower part wall body embedded steel bar to realize the connection between the upper and lower precast wall body, effectively realize the transmission of drawing and pressing of the upper and lower direction of load, avoided the wet operation of a large amount of templates and concrete that use in the traditional construction mode, broken away from the technical requirement restriction to the site operation workman.
Drawings
Fig. 1 is a schematic structural view of a rotating buckle type connection node for assembling a precast concrete shear wall according to an embodiment of the present invention;
FIG. 2 is a schematic view of the upper prefabricated shear wall structure of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a schematic view of a prefabricated shear wall structure at the middle lower part of FIG. 1
The correspondence between the components and the reference numbers in the above figures is as follows:
in the drawings: 1. the shear wall comprises an upper prefabricated shear wall body, 2 lower prefabricated shear wall bodies, 3 rotary bayonet fasteners, 4 a seam connecting layer, 5 longitudinal stress steel bars, 6 horizontal structural steel bars, 7 enlarged heading heads, 8 first holes, 9 steel bar net sheets, 10 extending steel bars, 11 second holes.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
In the description of the present invention, 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", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the prefabricated concrete shear wall assembly rotating buckle type connection node is shown, and includes an upper prefabricated shear wall 1, a lower prefabricated shear wall 2, a rotating bayonet fastener 3 and a seam connection layer 4, where the upper prefabricated shear wall 1 and the lower prefabricated shear wall 2 are both prefabricated concrete shear walls, and ends of the upper prefabricated shear wall 1 and the lower prefabricated shear wall 2 are both wrapped by a steel mesh sheet 9.
The upper prefabricated shear wall 1 and the lower prefabricated shear wall 2 are internally provided with longitudinal stress steel bars 5 and horizontal construction steel bars 6, the longitudinal stress steel bars 5 are vertically arranged, the horizontal construction steel bars 6 are horizontally arranged, and the longitudinal stress steel bars 5 and the horizontal construction steel bars 6 are vertically and crossly arranged. The lower end parts of the longitudinal stress steel bars 5 are provided with amplifying upset heads 7, and the width of each amplifying upset head 7 is larger than the aperture of each longitudinal stress steel bar 5.
The lower end of the upper prefabricated shear wall 1 is vertically provided with a first hole 8, the first hole 8 extends to a certain depth inside the upper prefabricated shear wall 1 along the direction of the longitudinal stress steel bar 5, a second hole 11 is formed in the side surface of the upper prefabricated shear wall 1, and the first hole 8 is communicated with the second hole 11.
The longitudinal stress steel bars 5 of the lower prefabricated shear wall 2 comprise extending steel bars 10 extending out of the upper surface of the lower prefabricated shear wall 2, and the length of the extending steel bars 10 is designed to be matched with the longitudinal length of the first holes 8. An enlarged heading 7 is also arranged at the upper end part of the extending reinforcing steel bar 10; and the extending steel bars 10 are inserted into the first holes 8, and the amplifying upsets 7 of the extending steel bars 10 are butted with the amplifying upsets 7 at the lower ends of the corresponding longitudinal stress steel bars 5 pre-embedded in the upper prefabricated shear wall 1 at the upper ends of the first holes 8.
As shown in fig. 2, a plurality of second holes 11 are arranged side by side on two side surfaces of the upper prefabricated shear wall 1, and the second holes 11 correspond to the longitudinal force-bearing steel bars 5 one by one, so that the number and the arrangement distance of the second holes 11 are the same as those of the longitudinal force-bearing steel bars 5. Similarly, the first holes 8 correspond to the longitudinal force-bearing steel bars 5 one by one, so that the number and the arrangement distance of the first holes 8 are the same as those of the longitudinal force-bearing steel bars 5. A first hole 8 is in communication with a second hole 11 for connection and fixation of the longitudinal load bar 5 during assembly.
The reserved position of the second hole 11 and the upper end position of the first hole 8 are kept at the same height, so that the rotary bayonet fastener 3 is installed in the first hole 8 to rotationally clamp the two enlarged heads 7 butted at the upper end part of the first hole 8, and the first hole 8 and the hole 11 are tightly filled by optimized high-strength micro-expansion concrete.
In the embodiment, when assembling is carried out on site, the lower prefabricated shear wall 2 is firstly installed and positioned, and the fine stone concrete joint connecting layer 4 with the thickness of 20mm is paved on the upper end face of the lower prefabricated shear wall; hoisting the upper prefabricated shear wall 1, so that the extending steel bars 10 of the lower prefabricated shear wall 2 can smoothly and slowly penetrate through the first holes 8 formed in the lower end of the upper prefabricated shear wall; and adjusting and calibrating the verticality of the upper prefabricated shear wall 1 and the lower prefabricated shear wall 2 to ensure that the upper prefabricated shear wall 1 and the lower prefabricated shear wall 2 are kept in a vertical state and aligned, butting an enlarged upset 7 extending out of the upper end of a steel bar 10 with an enlarged upset 7 at the lower end of a longitudinal stressed steel bar 5 pre-embedded in the upper prefabricated shear wall 1, extending a rotary bayonet fastener 3 through a second hole 11, clamping and rotationally fixing the two butted enlarged upsets 7, and fixedly connecting the extending steel bar 10 with the longitudinal stressed steel bar 5 pre-embedded in the upper prefabricated shear wall 1. And finally, filling high-strength micro-expansion concrete into the second hole 11, so that the second hole 11 and the first hole 8 are tightly filled, and the assembly of the prefabricated shear wall is completed.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (8)
1. A prefabricated concrete shear wall assembly rotating buckle type connection node comprises an upper prefabricated shear wall (1), a lower prefabricated shear wall (2), a rotating bayonet fastener (3) and a seam connection layer (4), wherein longitudinal stress steel bars (5) and horizontal construction steel bars (6) are pre-embedded in the prefabricated concrete shear wall, and the end parts of the longitudinal stress steel bars (5) are respectively provided with an amplifying heading (7), and the prefabricated concrete shear wall is characterized in that the lower end of the upper prefabricated shear wall (1) is vertically provided with a plurality of first holes (8), and the first holes (8) extend into the upper prefabricated shear wall (1) along the direction of the longitudinal stress steel bars (5); the longitudinal stress steel bars (5) of the lower prefabricated shear wall (2) comprise extending steel bars (10) extending out of the upper surface of the lower prefabricated shear wall; the extending steel bars (10) penetrate through the first holes (8), and the upper end parts of the extending steel bars (10) are provided with amplifying upsets (7) which are in butt joint with the amplifying upsets (7) at the end parts of the longitudinal stress steel bars (5) pre-embedded in the upper prefabricated shear wall (1); a plurality of second holes (11) are formed in two side faces of the upper prefabricated shear wall (1), and the reserved positions of the second holes (11) and the upper end positions of the first holes (8) keep the same height; the rotary bayonet fastener (3) is installed into the second hole (11) and clamps the two enlarged heading heads (7) butted with the upper end of the first hole (8).
2. A precast concrete shear wall assembled rotating snap-fit connection node according to claim 1, characterized in that the length of the protruding reinforcing bars (10) of the longitudinal stress reinforcing bars (5) of the lower precast shear wall (2) protruding out of the upper end face matches the longitudinal length of the first hole (8).
3. A precast concrete shear wall assembled rotating snap-fit connection node according to claim 2, characterized in that the longitudinal force-bearing steel bars (5) are in one-to-one correspondence with the first holes (8).
4. A precast concrete shear wall assembled rotating snap-fit connection node according to claim 2, characterized in that the longitudinal force-bearing steel bars (5) are in one-to-one correspondence with the holes (11).
5. A precast concrete shear wall assembled swivel snap-on connection node according to claim 1, characterized in that the ends of the upper precast shear wall (1) and the lower precast shear wall (2) are wrapped by a mesh of steel reinforcement (9).
6. A precast concrete shear wall assembled rotating snap-fit connection node according to claim 1, characterized in that the second hole (11) and the first hole (8) are compacted by high strength concrete packing.
7. A precast concrete shear wall assembled rotating snap-fit connection node according to claim 1, characterized in that the rotating bayonet fastener (3) is a high strength alloy steel rotating bayonet fastener.
8. A precast concrete shear wall assembled rotating snap-on connection node according to claim 1, characterized in that the joint connection layer (4) is composed of 20mm thick fine stone concrete.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016125.4U CN211690880U (en) | 2019-11-19 | 2019-11-19 | Rotatory buckle formula connected node of precast concrete shear force wall assembly |
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| CN201922016125.4U CN211690880U (en) | 2019-11-19 | 2019-11-19 | Rotatory buckle formula connected node of precast concrete shear force wall assembly |
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| CN211690880U true CN211690880U (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341683A (en) * | 2022-07-27 | 2022-11-15 | 涂朝升 | Concrete precast shear wall presss from both sides core heat preservation wallboard |
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2019
- 2019-11-19 CN CN201922016125.4U patent/CN211690880U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341683A (en) * | 2022-07-27 | 2022-11-15 | 涂朝升 | Concrete precast shear wall presss from both sides core heat preservation wallboard |
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