CN217053781U - Prefabricated component upper and lower layer connection node structure and construction structure thereof - Google Patents
Prefabricated component upper and lower layer connection node structure and construction structure thereof Download PDFInfo
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- CN217053781U CN217053781U CN202220745824.1U CN202220745824U CN217053781U CN 217053781 U CN217053781 U CN 217053781U CN 202220745824 U CN202220745824 U CN 202220745824U CN 217053781 U CN217053781 U CN 217053781U
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Abstract
The utility model discloses a prefabricated component upper and lower layer connection node structure, include: an upper layer prefabricated component; the lower prefabricated component is positioned below the upper prefabricated component; the cast-in-place concrete structure is used for connecting the upper prefabricated component and the lower prefabricated component; the cast-in-place concrete structure forms a first combination surface and a second combination surface with the lower edge of the upper prefabricated component and the upper edge of the lower prefabricated component respectively; at least one section of the first combination surface and/or the second combination surface is of a raised structure from the outer side to the inner side of the cast-in-place concrete structure. The utility model also discloses a construction structures of realizing above-mentioned prefabricated component upper and lower layer connection node structure.
Description
Technical Field
The utility model relates to an assembly type construction technical field, especially a prefabricated component upper and lower layer connection node structure and construction structures thereof.
Background
After the upper and lower prefabricated components are assembled and butted, the upper and lower prefabricated components need to be cast in situ to complete the combination of new and old concrete. In order to improve the waterproof performance of the connection node, it is usually necessary to glue the joint surface between the cast-in-place concrete and the prefabricated member to prevent rainwater and the like from penetrating into the inner side from the outer side of the node.
However, the gluing operation is complicated, the construction time is increased, and the waterproof effect is also restricted by the waterproof performance of the waterproof material adopted in gluing, so that another technical idea for waterproofing the upper and lower layer connecting nodes of the prefabricated part is urgently needed.
Therefore, the utility model is provided in particular.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prefabricated component upper and lower floor connection node structure and construction structure thereof reduces the prefabricated component connection node pair of traditional upper and lower floor and glues waterproof dependency.
In order to solve the above problem, in a first aspect, an embodiment of the present invention provides a prefabricated component upper and lower layer connection node structure, include:
an upper prefabricated member;
the lower-layer prefabricated component is positioned below the upper-layer prefabricated component;
the cast-in-place concrete structure is used for connecting the upper prefabricated component and the lower prefabricated component;
the cast-in-place concrete structure and the lower edge of the upper prefabricated component and the upper edge of the lower prefabricated component form a first combination surface and a second combination surface respectively; at least one section of the first combination surface and/or the second combination surface is of a raised structure from the outer side to the inner side of the cast-in-place concrete structure.
Further, the cast-in-place concrete structure is combined with the upper prefabricated component and the lower prefabricated component through rough surfaces.
Further, the top of the lower prefabricated part close to the outer side is provided with a reverse edge protruding upwards, and the second combining surface is formed on the upper edge of the reverse edge.
Further, the elevation structure includes a straight slope or a curved slope that is elevated from an outer side to an inner side of the cast-in-place concrete structure.
Further, the straight slope includes a slope rising at a constant slope or a slope rising in a step shape.
Further, the first combining surface and the second combining surface are both provided with the raised structures.
Further, the first joining face gradually rises from an end portion outside a lower edge of the upper layer preform member toward an inside of the upper layer preform member to form the rising structure.
Further, the second combining surface gradually rises from the end part outside the upper edge of the lower prefabricated component to the inner side of the lower prefabricated component to form the rising structure.
In a second aspect, the embodiment of the present invention provides a construction structure for connecting node structure on prefabricated component upper and lower layers on realization, include:
an upper layer prefabricated component;
the lower prefabricated component is positioned below the upper prefabricated component;
the outer side of the lower edge of the upper-layer prefabricated component is connected with the outer side of the upper edge of the lower-layer prefabricated component through a cast-in-place template, so that a cast-in-place concrete structure formed after cast-in-place is formed into a first combination surface and a second combination surface with the upper-layer prefabricated component and the lower-layer prefabricated component respectively; at least one section of the first combination surface and/or the second combination surface is of a raised structure from the outer side to the inner side of the cast-in-place concrete structure.
Compared with the prior art, the utility model discloses a following beneficial effect has: the structure gradually or generally in a rising trend from the outer side to the inner side of the cast-in-place concrete structure is constructed at the connecting node of the upper layer and the lower layer of the prefabricated part, external rainwater can be prevented from entering the interior of the concrete structure along the joint of the prefabricated part of the upper layer and the lower layer, the structure can be realized in advance in the production process of the prefabricated part, and the problem that the traditional waterproof construction is only dependent on-site gluing operation is solved.
Drawings
Fig. 1 is a schematic perspective view of a connection node structure of an upper layer and a lower layer of a prefabricated part provided by an embodiment of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an enlarged schematic view of the prefabricated part shown in FIG. 2 at the junction of the upper and lower connection nodes;
FIG. 4 is a schematic view of the formwork of FIG. 3 with the formwork removed;
FIG. 5 is a schematic view of a construction structure adopted by the upper and lower layer connection node structures of the prefabricated part in FIG. 1;
FIG. 6 is a side view of FIG. 5;
FIG. 7 is a front perspective structural view of a prefabricated component used in FIG. 1;
FIG. 8 is a bottom view of the prefabricated unit used in FIG. 1;
fig. 9 is a schematic side view of a prefabricated component upper and lower connection node structure according to another embodiment of the present invention;
FIG. 10 is a schematic view of a construction structure adopted by the upper and lower layer connection node structures of the prefabricated part in FIG. 9;
in the figure: 1-upper prefabricated component; 101-a prefabricated part body; 102-enlarging a pouring area; 2-lower layer prefabricated part; 103-concrete pouring channels; 104-casting a cavity in situ; 105-horizontal rebars; 106-longitudinal reinforcement; 107-reinforcing steel bar grooves; 108-a closed section; 109-opposite edge; 3-a cast-in-place concrete structure; 4-a first bonding surface; 5-a second bonding surface; 6-elevated structure; 7-template.
Detailed Description
The principles and spirit of the present invention will be described below with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the implementation of the present invention, and are not intended to limit the scope of the present invention in any way.
With reference to fig. 1-10, an embodiment of the present invention provides a prefabricated component upper and lower layer connection node structure, including an upper prefabricated component 1, a lower prefabricated component 2, and a cast-in-place concrete structure 3 connecting the upper prefabricated component 1 and the lower prefabricated component 2.
For better understanding of the following description of the connection node structure, the structure of the prefabricated component used in the present embodiment is described, but it should be understood that the embodiment of the present invention is only a prefabricated component preferably using this structure, but is not limited thereto, and the connection node structure described below can also be applied to other prefabricated component systems.
Referring to fig. 7 and 8, in the present embodiment, the upper prefabricated element 1 and the lower prefabricated element 2 have the same structure, but one is located above and the other is located below, and for the sake of clarity of description, the relative positional relationship between the two is distinguished by name. Taking the prefabricated part 1 of the upper layer as an example, the prefabricated part comprises a prefabricated part main body 101 made of concrete, and a cavity is constructed in the prefabricated part main body 101, and in the embodiment, the cavity comprises an enlarged casting area 102, a concrete casting channel 103 and a cast-in-place cavity 104 which penetrate from the top to the bottom of the prefabricated part main body 101. After the prefabricated components of the upper layer and the lower layer are butted, after a template is erected, concrete is poured from the cavity of the prefabricated component 1 of the upper layer, the concrete flows into the cast-in-place cavity 104 after passing through the enlarged pouring area 102 and the concrete pouring channel 103 of the prefabricated component 1 of the upper layer, and then the concrete flows into the area between the prefabricated components 2 of the upper layer and the lower layer to form the cast-in-place concrete structure 3 (corresponding to the position of a floor slab). The enlarged casting area 102 is substantially in the shape of a wedge with a wide top and a narrow bottom, so that concrete can flow into the casting channel 103 and the cast-in-place cavity 104 more smoothly, and manual vibration is facilitated.
Inside the prefabricated part main body 101, reinforcing bars staggered transversely and longitudinally, specifically, including horizontal reinforcing bars 105 and longitudinal reinforcing bars 106, are also arranged. Horizontal reinforcing bars 105 extend from both sides of the prefabricated part body 101 for connecting with other horizontally adjacent prefabricated parts to form horizontal connection nodes. The tops of the longitudinal steel bars 106 extend out of the upper end of the prefabricated part main body 101, when the upper prefabricated part 2 and the lower prefabricated part 2 are connected, the tops of the longitudinal steel bars 106 of the lower prefabricated part 2 enter the cast-in-place cavity 104 at the bottom of the upper prefabricated part, and after cast-in-place, the concrete in the cast-in-place cavity 104 and the tops of the longitudinal steel bars 106 of the lower prefabricated part 2 form wrapping, so that the anchoring strength of new and old concrete is improved. In this embodiment, the cast-in-place cavity 104 at the bottom of the prefabricated unit body 101 is configured with the tendon grooves 107 at the inner walls thereof, the longitudinal tendons 106 are located in the tendon grooves 107, and the tendon grooves 107 extend over the thickness of the prefabricated unit, thereby increasing the area of the cast-in-place cavity 104, increasing the bonding area between the cast-in-place concrete and the prefabricated unit body 101, and increasing the anchoring strength between the cast-in-place concrete, the longitudinal tendons 106 and the prefabricated unit body 101. Further, the longitudinal steel bars 106 comprise multiple groups which are horizontally arranged at intervals, two longitudinal steel bars are arranged in front of and behind each group in the thickness direction of the prefabricated part main body 101, and the end parts of the two longitudinal steel bars 106 are connected through the closed sections 108, so that the space in the thickness direction of the prefabricated part is fully utilized, the combination area of the longitudinal steel bars 106 and cast-in-place concrete is increased, and the anchoring strength is further increased. The structure of the prefabricated part is described above by taking the prefabricated part 1 on the upper layer as an example, and the structure of the prefabricated part 2 on the lower layer is the same as that of the prefabricated part, so that repeated description is omitted for avoiding redundancy.
Cast-in-place concrete structure 3 passes through the mat surface with upper prefabricated component 1 and lower floor's prefabricated component 2 and combines (not shown in the figure), because the existence of mat surface, the combined area between new and old concrete is bigger, more is favorable to promoting the structural strength of lower floor's prefabricated component 2 connected node. It should be understood that the manner of constructing the roughened surface can be varied, and any one of them is within the scope of the present invention.
In the connection node structure of the upper-layer prefabricated component 2 and the lower-layer prefabricated component 2, a cast-in-place concrete structure 3 and the lower edge of the upper-layer prefabricated component 1 and the upper edge of the lower-layer prefabricated component 2 form a first combination surface 4 and a second combination surface 5 respectively; at least one section of the first joint surface 4 and/or the second joint surface 5 is a raised structure 6 from the outer side to the inner side of the cast-in-place concrete structure 3. Can hinder inside outside rainwater enters into concrete structure along the seam crossing of lower floor prefabricated component 2, this kind of structure can be realized in advance in prefabricated component production process, has reduced the problem of relying on the operation of beating glue on the scene in the traditional waterproof construction alone. However, it should be understood that the embodiment merely provides an innovative waterproof structure, and overcomes the disadvantage that the traditional waterproof technology for the upper and lower layer connection nodes only depends on-site gluing, but if the need exists for further improving the waterproof performance, gluing can be performed on the basis of the waterproof structure of the embodiment, but compared with the case of only depending on gluing, a layer of waterproof measures is added, and the waterproof effect is better.
With reference to fig. 3 and 4, in some embodiments, the top of the upper prefabricated element 1 near the outer side has a counter-edge 109 projecting upwards, and the second joining surface 5 is configured at the upper edge of the counter-edge 109. The reverse edge 109 structure can be processed in advance in the manufacturing of the prefabricated part, the area of the site erecting formwork 7 is reduced, the operation of site construction personnel is facilitated, and the cost is saved.
The elevation structure 6 includes a straight slope or a curved slope that rises from the outside to the inside of the cast-in-place concrete structure 3. The straight type slope includes a slope rising with a constant slope or a slope rising in a step shape. In this embodiment, the first joining surface 4 and the second joining surface 5 each have a raised structure 6, and specifically, the raised structure 6 of the first joining surface 4 is an inclined surface gradually raised from the outer end of the bottom of the upper prefabricated component 1 to the inner side. The elevation structure 6 of the second joint surface 5 is also an inclined surface which gradually rises from the outer end of the top of the counter edge 109 of the lower prefabricated component 2 to the inner side. In the production of the prefabricated parts, the top and bottom of the prefabricated parts can be directly constructed as the inclined surfaces, so that after the cast-in-place of the connection node of the upper and lower prefabricated parts 2 is completed, the first and second joint surfaces 4 and 5 formed by the cast-in-place concrete structure 3 and the upper and lower prefabricated parts 1 and 2 have the inclined surfaces of the construction. In other embodiments, with reference to fig. 9 and 10, the top of the prefabricated element does not have the counter-edge 109, and the second joining surface 5 is raised gradually from the outer end of the top of the lower prefabricated element 2 towards the inside, the rest of the structure being the same as that of the prefabricated element with the counter-edge 109.
With reference to fig. 5, 6 and 10, the present embodiment further provides a construction structure for implementing the above-mentioned connection node structure of the upper and lower layers of the prefabricated component, including: the structures of the upper prefabricated part 1, the lower prefabricated part 2, the upper prefabricated part 1 and the lower prefabricated part 2 are as described above and will not be repeated here.
The outer side of the lower edge of the upper prefabricated component 1 and the outer side of the upper edge of the lower prefabricated component 2 are connected through a template 7 erected on site, so that the cast-in-place concrete structure 3 formed after the cast-in-place is formed into the first combination surface 4 and the second combination surface 5 which are described above with the upper prefabricated component 1 and the lower prefabricated component 2 respectively, in other words, after the construction of the construction structure is completed, concrete is poured from the cavity of the upper prefabricated component 1, flows into the cast-in-place cavity 104 after passing through the enlarged pouring area 102 and the concrete pouring channel 103 of the upper prefabricated component 1, and then flows into the area between the upper prefabricated component 2 and the lower prefabricated component 2 to form the cast-in-place concrete structure 3, namely the prefabricated component upper and lower connection node structure which is described above is obtained.
The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Prefabricated component upper and lower layer connection node structure, its characterized in that includes:
an upper prefabricated member;
the lower-layer prefabricated component is positioned below the upper-layer prefabricated component;
the cast-in-place concrete structure is used for connecting the upper prefabricated component and the lower prefabricated component;
the cast-in-place concrete structure forms a first combination surface and a second combination surface with the lower edge of the upper prefabricated component and the upper edge of the lower prefabricated component respectively; at least one section of the first combination surface and/or the second combination surface is of a lifting structure from the outer side to the inner side of the cast-in-place concrete structure.
2. The prefabricated upper and lower deck connection node structure of claim 1, wherein the cast-in-place concrete structure is combined with the upper and lower deck prefabricated parts by a roughened surface.
3. The prefabricated upper and lower layer connecting node structure of claim 1, wherein the top of the lower prefabricated part near the outer side has a reverse edge protruding upward, and the second combining surface is formed at the upper edge of the reverse edge.
4. The prefabricated upper and lower layer connecting node structure of claim 1, wherein the elevated structure comprises a straight slope or a curved slope elevated from an outer side to an inner side of the cast-in-place concrete structure.
5. The prefabricated member upper and lower layer connecting node structure of claim 4, wherein the straight slope includes a slope rising with a constant slope or a slope rising in a step shape.
6. The prefabricated upper and lower layer connecting node structure of claim 1, wherein the first and second combining surfaces each have the elevated structure.
7. The prefabricated upper and lower layer connecting node structure of claim 1, wherein the first coupling surface is gradually raised from an end portion outside a lower edge of the upper layer prefabricated member toward an inside of the upper layer prefabricated member to form the raised structure.
8. The prefabricated upper and lower layer connecting node structure of claim 1, wherein the second combining surface is gradually raised from an end portion outside an upper edge of the lower prefabricated member toward an inside of the lower prefabricated member to form the raised structure.
9. A construction structure for realizing the connection of the upper and lower layers of the prefabricated parts to the node structure according to any one of claims 1 to 8, comprising:
an upper layer prefabricated component;
the lower prefabricated component is positioned below the upper prefabricated component;
the outer side of the lower edge of the upper-layer prefabricated component and the outer side of the upper edge of the lower-layer prefabricated component are connected through a cast-in-place template, so that a cast-in-place concrete structure formed after cast-in-place is formed into a first combination surface and a second combination surface with the upper-layer prefabricated component and the lower-layer prefabricated component respectively; at least one section of the first combination surface and/or the second combination surface is of a raised structure from the outer side to the inner side of the cast-in-place concrete structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220745824.1U CN217053781U (en) | 2022-04-01 | 2022-04-01 | Prefabricated component upper and lower layer connection node structure and construction structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220745824.1U CN217053781U (en) | 2022-04-01 | 2022-04-01 | Prefabricated component upper and lower layer connection node structure and construction structure thereof |
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| CN217053781U true CN217053781U (en) | 2022-07-26 |
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| CN202220745824.1U Active CN217053781U (en) | 2022-04-01 | 2022-04-01 | Prefabricated component upper and lower layer connection node structure and construction structure thereof |
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