CN211499378U - Closely piece together two-way rib superimposed sheet node structure that does not go out - Google Patents
Closely piece together two-way rib superimposed sheet node structure that does not go out Download PDFInfo
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- CN211499378U CN211499378U CN201921962879.2U CN201921962879U CN211499378U CN 211499378 U CN211499378 U CN 211499378U CN 201921962879 U CN201921962879 U CN 201921962879U CN 211499378 U CN211499378 U CN 211499378U
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Abstract
The utility model discloses a close piece together two-way no muscle superimposed sheet node structure, including no muscle superimposed sheet and precast beam, the plate end and the board side of no muscle superimposed sheet do not stretch out the beard muscle, the plate end and the board side of no muscle superimposed sheet all are provided with first embedded bar; the prefabricated beam is a convex beam, an L-shaped lap joint end with an opposite opening is formed at the top of the convex beam, and a second embedded steel bar is arranged at the L-shaped lap joint end; the L-shaped lap joint end is in lap joint with the plate end of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars at the plate end of the rib-free laminated slab are welded with the first lap joint steel bars; the L-shaped lap joint ends are in lap joint with the plate sides of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars on the plate sides of the rib-free laminated slab are welded with the first lap joint steel bars. The node structure effectively solves the problems of low production efficiency, high cost, inconvenient transportation and the like caused by the rib discharge of the prefabricated component bottom plate.
Description
Technical Field
The utility model belongs to the technical field of the assembled building structure, concretely relates to close two-way no muscle superimposed sheet node construction of piecing together.
Background
The development of the fabricated building is a great change in the building industry and is an important measure for promoting the structural reform of the supply side and the development of novel urbanization. The development of the assembly type building is highly emphasized by party centers and state offices, and the assembly type building enters the comprehensive development stage in China since the working meeting of the central city. Governments, both central and local, have produced a series of documents that direct and advance the development of fabricated structures.
An important characteristic of the fabricated building is that the building components are prefabricated in factories as much as possible, the horizontal components are prefabricated in factories at the earliest, and the horizontal prefabricated components are laminated floors which are most widely applied. From the situation that the laminated slab is pushed in various regions in recent two years, the application of the prefabricated part does not show obvious construction period, cost and quality advantages, so that the enthusiasm adopted by owners is generally not high, and the effect is not good when the prefabricated part is pushed by only a mandatory administrative command. The main reasons are:
firstly, the standardization of the prefabricated parts is low, which results in increased amortization cost and reduced production efficiency.
Secondly, the truss steel bar composite slab at the present stage mainly adopts a splicing form of single plates with ribs arranged on four sides and a plurality of plates with an integral cast-in-place splicing structure, and the composite slab with the external extending steel bars has obvious problems of low production efficiency, overhigh cost, inconvenient transportation and the like in the aspects of component manufacturing, transportation, field installation and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: the utility model provides a close piece together two-way not play muscle superimposed sheet node structure has effectively solved because of the production efficiency that prefabricated component bottom plate goes out the muscle and leads to is low on the contrary, with high costs, transport inconvenient scheduling problem.
The utility model adopts the technical scheme as follows:
a joint structure of a close-spliced bidirectional rib-not-out laminated slab comprises rib-not-out laminated slabs and precast beams, wherein ribs do not extend out of the slab ends and the slab sides of the rib-not-out laminated slabs, and first embedded steel bars are arranged on the slab ends and the slab sides of the rib-not-out laminated slabs; the prefabricated beam is a convex beam, an L-shaped lap joint end with an opposite opening is formed at the top of the convex beam, and a second embedded steel bar is arranged at the L-shaped lap joint end; the L-shaped lap joint end is in lap joint with the plate end of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars at the plate end of the rib-free laminated slab are welded with the first lap joint steel bars; the L-shaped lap joint ends are in lap joint with the plate sides of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars on the plate sides of the rib-free laminated slab are welded with the first lap joint steel bars.
Preferably, the width of the L-shaped overlapping end is 25mm, and the overlapping length of the L-shaped overlapping end and the rib-out laminated slab is 20 mm.
Preferably, the plate sides of the two rib-not-out laminated slabs are spliced in parallel, and the first embedded steel bars on the plate sides of the two rib-not-out laminated slabs are welded with the second lap steel bars.
Preferably, a plurality of third overlap joint reinforcing steel bars are uniformly arranged on the second overlap joint reinforcing steel bars along the axial direction.
Preferably, the third overlap joint reinforcing steel bar is provided with a plurality of fourth overlap joint reinforcing steel bars parallel to the second overlap joint reinforcing steel bar.
Preferably, mortar is filled in the gaps at the bottoms of the two rib-free laminated slabs.
Preferably, the first embedded steel bars and the second embedded steel bars are C-shaped steel bars, and the bending angles of the first steel bars and the second steel bars are 45 degrees.
Preferably, the diameters of the first embedded steel bar and the second embedded steel bar are larger than or equal to 8 mm.
Preferably, the diameters of the first overlap steel bar and the second overlap steel bar are more than or equal to 8 mm.
Preferably, the diameter of the fourth overlap steel bar is 8mm, and the fourth overlap steel bar is third-grade steel.
The utility model provides a close joint construction of piecing together two-way muscle superimposed sheet that does not go out has following beneficial effect for the joint construction of prior art's superimposed sheet: 1. the beard ribs commonly adopted by the existing prefabricated laminated slab are eliminated, the integrity of the concrete side mold during construction is ensured, and the mold manufacturing cost is effectively reduced. 2. The beard ribs of the prefabricated laminated slab are eliminated, so that the universality of the prefabricated slab bench formwork is higher, the large-scale production of a factory is facilitated, and the production efficiency is improved. 3. The production, the transportation and the installation of the prefabricated composite slab are more convenient.
In conclusion, the invention effectively solves a series of problems of low production efficiency, overhigh cost, inconvenient transportation and the like caused by the rib production of the prefabricated laminated slab at present, and has higher economic benefit and social benefit.
Drawings
FIG. 1 is a schematic structural diagram of a rib-free laminated slab and precast beam joint;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic diagram of a three-dimensional structure of a joint structure of a rib-free laminated slab and a precast beam;
FIG. 4 is a top view of a rib-free laminated slab and precast beam joint structure;
FIG. 5 is a schematic view of a joint structure of a rib-free laminated slab;
FIG. 6 is a schematic diagram of a three-dimensional structure of a splicing node structure of a rib-free laminated slab;
FIG. 7 is a top view of a splicing node structure of the rib-free composite slab and a precast beam;
fig. 8 is a schematic view of a steel bar welding process.
In the drawings, each reference numeral denotes:
the method comprises the following steps of 1-precast beam, 2-unreinforced laminated slab, 3-reinforced concrete cast-in-place layer, 4-first embedded steel bar, 5-second embedded steel bar, 6-first overlap steel bar, 7-second overlap steel bar, 8-third overlap steel bar, 9-fourth overlap steel bar, 10-plate bottom gap and 11-L-shaped connecting end.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Example 1
A close-splicing bidirectional rib-free laminated slab joint structure is shown in figures 1-4 and comprises rib-free laminated slabs 2 and precast beams 1, wherein the plate ends and the plate sides of the rib-free laminated slabs 2 do not extend out of ribs, and the plate ends and the plate sides of the rib-free laminated slabs 2 are provided with first embedded steel bars 4; the precast beam 1 is a convex beam, an L-shaped lap joint end 11 with opposite openings is formed at the top of the convex beam, and a second embedded steel bar 5 is arranged at the L-shaped lap joint end 11; the L-shaped lap joint end 11 is in lap joint with the plate end of the rib-free laminated slab 2, and the first embedded steel bars 4 and the second embedded steel bars 5 at the plate end of the rib-free laminated slab 2 are welded with the first lap joint steel bars 6; the L-shaped lap joint end 11 is in lap joint with the plate side of the rib-free laminated slab 2, and the first embedded steel bars 4 and the second embedded steel bars 5 on the plate side of the rib-free laminated slab 2 are welded with the first lap joint steel bars 6. The utility model provides a close-spliced two-way bar-not-out laminated slab node structure, which comprises a bar-not-out laminated slab 2, wherein the slab end and the slab side of the bar-not-out laminated slab do not extend out of a beard bar, and the slab end and the slab side of the bar-not-out laminated slab are provided with first embedded steel bars 4; the utility model discloses in, the side that does not go out muscle superimposed sheet 2 along length direction is the board side, and is the board end with the last vertically direction of length direction. Precast beam 1 is protruding type roof beam, protruding type roof beam 1 top forms the opposite L type overlap joint end 11 of opening, as shown in fig. 4 for overlap joint does not support out muscle composite sheet 2, and L type overlap joint end 11 can not overlap joint the board end of play muscle composite sheet 2, also can not overlap joint the board side of play muscle composite sheet 2, just L type overlap joint end 11 is provided with second embedded bar 5, first embedded bar 4 all welds with first overlap joint reinforcing bar 6. In this embodiment, the peripheries of the unreinforced composite slabs 2 are all connected with the precast beam 1, as shown in fig. 4, and the connection manner of the slab end and the slab side is the same as that of the precast beam 1, that is, the slab end and the slab side are overlapped through the L-shaped overlapping end 11 of the precast beam 1, and the first embedded steel bars 4 and the second embedded steel bars 5 are all welded with the first overlapping steel bars 6, as shown in fig. 1 to 3. After the node structures are connected, a reinforced concrete cast-in-place layer 3 is poured on the precast beam 1 and the unreinforced composite slab 2, as shown in figure 1. In the embodiment, the precast beam 1 is made into a convex beam, which can solve the problem of support of the rib composite plate 2 and the problem of pouring a support bottom die at present, and is simple and economical, and meanwhile, the top of the convex beam is provided with the L-shaped lap joint end 11 with opposite openings, so that the construction professional can use plastering for solving the problem; in addition, first embedded steel 4 and the welding of first overlap joint reinforcing bar 6 to and second embedded steel 5 and the welding length of the 6 welded of first overlap joint reinforcing bar need carry out the atress calculation according to actual conditions, and first embedded steel 4 and the equal strong welding of first overlap joint reinforcing bar 6, and second embedded steel 5 and the equal strong welding of first overlap joint reinforcing bar 6. The utility model discloses a do not go out muscle composite sheet 2's board end and board side and do not stretch out the beard muscle, do not go out muscle composite sheet 2 through protruding type roof beam overlap joint, and do not go out muscle composite sheet 2's board end and the first embedded bar 4 on the board side, second embedded bar 5 and the 6 welding realization boards of first embedded bar on the protruding type roof beam and the connection between the roof beam, because the board end and the board side of the composite sheet of this application do not stretch out the beard muscle, the integrality of concrete side form when having guaranteed the construction, the mould cost of manufacture has effectively been reduced, make the commonality of platform prefabricated plate higher, the factory scale production of being convenient for, and the production efficiency is improved, transportation, installation.
Example 2
Based on the above embodiment 1, as shown in fig. 1 and 2, the width of the L-shaped lap end 11 is 25mm, and the lap length of the L-shaped lap end 11 and the rib-less laminated slab 2 is 20 mm. According to the practical situation of the current fabricated building, the width of the L-shaped lap joint end 11 arranged on the convex beam is 25mm, and the lap joint length of the L-shaped lap joint end and the rib-free laminated slab 2 is 20 mm.
Example 3
Based on the above embodiment 1 or 2, as shown in fig. 5 to 7, the plate sides of the two unrelieved bars 2 are spliced in parallel, and the first embedded bars 4 on the plate sides of the two unrelieved bars 2 are both welded to the second overlapping bars 7. In this embodiment, when the rib-not-out composite slab 2 is fabricated in a double-split manner or a triple-split manner, the node structure of the rib-not-out composite slab 2 includes not only the node structure between the rib-not-out composite slab 2 and the precast beam 1, but also the node structure between the two rib-not-out composite slabs 2, as shown in fig. 7, the node structure of the two rib-not-out composite slabs 2 is formed by splicing the plate sides of the two rib-not-out composite slabs 2 in parallel, and in this embodiment, the rib-not-out composite slab 2 is a plate side along the side in the length direction, and a direction perpendicular to the length direction is a plate end in a manner of welding the first embedded rib 4 and the second embedded rib 7 on the plate sides of the two rib-not-out composite slabs 2. Meanwhile, when the rib laminated slab 2 is not subjected to double splicing or triple splicing, the splicing size is selected according to a designed drawing set to ensure that the position of the splicing seam at the bottom of the slab is kept away from the maximum stress position, and when the first embedded steel bars 4 are welded with the second overlapped steel bars 7, the welding length is calculated according to the stress according to the actual condition of the fabricated building, the calculation mode is well known by those skilled in the art, and detailed explanation is not provided herein.
Example 4
Based on the above embodiment 3, as shown in fig. 5, a plurality of third overlap bars 8 are uniformly arranged on the second overlap bars 7 along the axial direction. In this embodiment, further consolidate the concatenation between two muscle superimposed sheets 2 that do not go out, consolidate the concatenation of two muscle superimposed sheets 2 that do not go out through the mode that evenly is provided with a plurality of third overlap joint reinforcing bars 8 along axial direction on second overlap joint reinforcing bar 7. In this embodiment, the diameter of the third overlap bar 8, and the spacing on the second overlap bar 7, is arranged according to the stress bar requirements, which are well known to those skilled in the art and will not be described in detail herein.
Example 5
Based on the above embodiment 4, as shown in fig. 5, the third overlap steel bar 8 is provided with a plurality of fourth overlap steel bars 9 parallel to the second overlap steel bar 7. In this embodiment, in order to further reinforce the splice between two slabs 2 without ribs, the splice is further reinforced by arranging a plurality of fourth overlap bars 9 parallel to the second overlap bars 7 on the third overlap bars 8. And after the construction of the splicing joint between the two non-bar laminated slabs 2 is finished, pouring concrete on the upper parts of the non-bar laminated slabs 2.
Example 6
Based on the above-mentioned embodiments 3 to 5, as shown in fig. 5, the slab bottom gap 8 of the two unreinforced superimposed slabs 2 is filled with mortar. Because two splicing that can not go out muscle superimposed sheet 2 have the gap at the bottom of the board, can carry out the pointing through the mode of filling the mortar in the gap, its concrete way is: jointing and leveling are firstly carried out by mortar twice. And jointing after the support is removed, and leveling after one month. The selected mortar is polymer anti-cracking mortar. In addition, the pointing manner and the mortar selection are not limited to the description of the embodiment.
Example 7
Based on the above embodiment 6, as shown in fig. 8, the first embedded steel bars 4 and the second embedded steel bars 5 are C-shaped steel bars, and the bending angles of the first steel bars and the second steel bars are 45 °. In this embodiment, set up first embedded steel 4 and second embedded steel 5 are C shaped steel muscle, and the angle of buckling is 45, and first embedded steel 4 becomes the curved anchor of C type and goes into not going out muscle superimposed sheet 2 in, as shown in fig. 3, fig. 6, and second embedded steel 5 becomes the curved anchor of C type and goes into precast beam 1 in, as shown in fig. 3. In the beam-slab joint structure, the lengths of the non-welded regions of the first embedded steel bars 4 and the first lap steel bars 6, and the second embedded steel bars 5 and the first lap steel bars 4 are determined by the anchoring length, as shown in fig. 8; in the plate-to-plate joint structure, the lengths of the two first embedded bars 4 and the second overlapping bars 7 in the non-welding area are also determined by the anchoring length, as shown in fig. 8.
Example 8
Based on above-mentioned embodiment 7, first embedded bar 4 and 5 diameters more than or equal to 8mm of second embedded bar. In this example, the diameter of the first embedded steel bar 4 and the diameter of the second embedded steel bar 5 are equal to the diameter of the stressed steel bar, and the diameter of the steel bar is greater than or equal to 8 mm.
Example 9
Based on above-mentioned embodiment 8, first overlap joint reinforcing bar 6 and second overlap joint reinforcing bar 7 diameter more than or equal to 8 mm. In this embodiment, the diameters of the first overlap steel bar 6 and the second overlap steel bar 7 are equal to the diameter of the stressed steel bar, and the diameters of the steel bars are greater than or equal to 8 mm.
Example 10
Based on the above embodiment 9, the fourth overlap steel bar 9 has a diameter of 8mm and is made of three-grade steel. In this embodiment, the fourth steel bar 9 is typically three-grade steel with a diameter of 8 mm.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. The joint structure of the close-spliced two-way bar-out-of-range composite slab is characterized by comprising bar-out-of-range composite slabs and precast beams, wherein the plate ends and the plate sides of the bar-out-of-range composite slabs do not extend out of the beard bars, and the plate ends and the plate sides of the bar-out-of-range composite slabs are provided with first embedded steel bars; the prefabricated beam is a convex beam, an L-shaped lap joint end with an opposite opening is formed at the top of the convex beam, and a second embedded steel bar is arranged at the L-shaped lap joint end; the L-shaped lap joint end is in lap joint with the plate end of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars at the plate end of the rib-free laminated slab are welded with the first lap joint steel bars; the L-shaped lap joint ends are in lap joint with the plate sides of the rib-free laminated slab, and the first embedded steel bars and the second embedded steel bars on the plate sides of the rib-free laminated slab are welded with the first lap joint steel bars.
2. The joint structure of the close-coupled two-way bar-less laminated slab as claimed in claim 1, wherein the width of the L-shaped overlapping end is 25mm, and the overlapping length of the L-shaped overlapping end and the bar-less laminated slab is 20 mm.
3. The close-coupled two-way bar-missing laminated slab joint structure of claim 2, wherein the plate sides of two bar-missing laminated slabs are spliced side by side, and the first embedded steel bars on the plate sides of the two bar-missing laminated slabs are welded with the second lap steel bars.
4. The close-spliced two-way bar-inexistent superimposed slab joint structure as claimed in claim 3, wherein a plurality of third overlapping reinforcing bars are uniformly arranged on the second overlapping reinforcing bars along the axial direction.
5. The close-spliced two-way bar-inexistent laminated slab joint structure as claimed in claim 4, wherein said third overlapped reinforcement is provided with a plurality of fourth overlapped reinforcements parallel to said second overlapped reinforcement.
6. The close-fit two-way bar-less laminated slab joint structure as claimed in any one of claims 3 to 5, wherein a gap between bottoms of two bar-less laminated slabs is filled with mortar.
7. The close-spliced two-way unreleasable bar laminated slab joint structure as claimed in claim 6, wherein the first embedded steel bars and the second embedded steel bars are C-shaped steel bars, and the bending angles of the first embedded steel bars and the second embedded steel bars are 45 degrees.
8. The close-spliced two-way no-bar laminated slab joint structure as claimed in claim 7, wherein the diameters of the first embedded steel bars and the second embedded steel bars are greater than or equal to 8 mm.
9. The close-coupled two-way no-rib laminated slab joint structure as claimed in claim 8, wherein the diameter of the first and second overlapping steel bars is greater than or equal to 8 mm.
10. The close-spliced two-way bar-inexistent superimposed slab node structure of claim 5, wherein said fourth overlapping steel bar has a diameter of 8mm and is made of three-grade steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921962879.2U CN211499378U (en) | 2019-11-14 | 2019-11-14 | Closely piece together two-way rib superimposed sheet node structure that does not go out |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921962879.2U CN211499378U (en) | 2019-11-14 | 2019-11-14 | Closely piece together two-way rib superimposed sheet node structure that does not go out |
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| CN211499378U true CN211499378U (en) | 2020-09-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235795A (en) * | 2021-05-20 | 2021-08-10 | 苏州市中港建筑有限公司 | Rapid mounting and dismounting construction method for laminated slab |
| CN114086711A (en) * | 2021-11-30 | 2022-02-25 | 中国建筑第五工程局有限公司 | Building assembly containing hilt-shaped reinforced concrete prefabricated slab and construction method thereof |
| CN115928929A (en) * | 2022-09-30 | 2023-04-07 | 中国十九冶集团有限公司 | Rib-outlet-free large-size few-abutted-seam laminated slab joint structure and construction method |
-
2019
- 2019-11-14 CN CN201921962879.2U patent/CN211499378U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235795A (en) * | 2021-05-20 | 2021-08-10 | 苏州市中港建筑有限公司 | Rapid mounting and dismounting construction method for laminated slab |
| CN114086711A (en) * | 2021-11-30 | 2022-02-25 | 中国建筑第五工程局有限公司 | Building assembly containing hilt-shaped reinforced concrete prefabricated slab and construction method thereof |
| CN115928929A (en) * | 2022-09-30 | 2023-04-07 | 中国十九冶集团有限公司 | Rib-outlet-free large-size few-abutted-seam laminated slab joint structure and construction method |
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Address after: 610017 No. 4, floor 1, building 1, No. 28, dongchenggenxia street, Qingyang District, Chengdu, Sichuan Patentee after: Chengdu architectural design and Research Institute Co.,Ltd. Address before: No.16, dongyuheyan street, Qingyang District, Chengdu, Sichuan 610017 Patentee before: CHENGDU ARCHITECTURAL DESIGN & Research Institute |
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