CN215716438U - Back-loading truss type laminated slab - Google Patents
Back-loading truss type laminated slab Download PDFInfo
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- CN215716438U CN215716438U CN202121767630.3U CN202121767630U CN215716438U CN 215716438 U CN215716438 U CN 215716438U CN 202121767630 U CN202121767630 U CN 202121767630U CN 215716438 U CN215716438 U CN 215716438U
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Abstract
The utility model discloses a rear-mounted truss type laminated slab, which belongs to the technical field of laminated slabs and is characterized by comprising a bottom plate, wherein a laminated slab body is arranged above the bottom plate, a plurality of uniformly distributed steel bar trusses are arranged above the laminated slab body, upper chord steel bars are arranged at the top ends of the inner side walls of the plurality of steel bar trusses, lower chord steel bars are arranged below the left sides and the right sides of the plurality of steel bar trusses, a plurality of uniformly distributed reinforcing arc bars are arranged below the upper chord steel bars, the left sides and the right sides of the outer side walls of the plurality of reinforcing arc bars are welded with the left sides and the right sides of the inner side walls of the steel bar trusses, reinforcing arc bars and reinforcing ribs are welded and fixed on the inner side walls of the steel bar trusses, so that the compression resistance of the steel bar trusses is improved, a pre-buried reinforcing seat is arranged above a cement sand layer, the connecting strength between a middle supporting vertical steel bar and a side supporting vertical steel bar and the laminated slab body is enhanced, so that the shearing force of a laminated slab surface is improved, the transverse and longitudinal force bearing and transmission of the steel bar truss are facilitated.
Description
Technical Field
The utility model relates to the technical field of laminated slabs, in particular to a rear-mounted truss type laminated slab.
Background
The laminated slab is an assembled integral floor slab formed by laminating a prefabricated slab and a cast-in-place reinforced concrete layer, the laminated floor slab has good integrity, the upper surface and the lower surface of the slab are smooth, decoration of a finish coat is facilitated, the laminated slab is suitable for high-rise buildings and large-bay buildings with high integral rigidity requirements, and the steel bar truss mainly plays a role in enhancing the shearing resistance bearing capacity on the interface (or called as a construction joint) of the laminated slab and the prefabricated bottom plate.
However, the existing post-installed truss type laminated slab has small shearing force, the connection rigidity of the steel bar truss and the bottom plate is poor, and the steel bar truss is easy to be dislocated when concrete is poured.
SUMMERY OF THE UTILITY MODEL
The present invention addresses the above problems by providing a rear-loading truss type laminated slab that solves the above problems.
The utility model is realized in such a way, the rear-loading truss type laminated slab comprises a bottom plate, a laminated slab body is arranged above the bottom plate, a plurality of uniformly distributed steel bar trusses are arranged above the laminated slab body, upper chord steel bars are arranged at the top ends of the inner side walls of the plurality of steel bar trusses, lower chord steel bars are arranged below the left sides and the right sides of the plurality of steel bar trusses, a plurality of uniformly distributed reinforcing arc steel bars are arranged below the upper chord steel bars, the left sides and the right sides of the outer side walls of the plurality of reinforcing arc steel bars are welded with the left sides and the right sides of the inner side walls of the steel bar trusses, reinforcing ribs are fixedly connected with the inner side walls of the plurality of reinforcing arc steel bars, middle supporting vertical steel bars are arranged below the front ends and the rear ends of the upper chord steel bars, side supporting vertical steel bars are arranged below the front ends and the rear ends of the two lower chord steel bars, reinforcing connecting steel bars are welded on the left sides and the left sides of the two middle supporting vertical steel bars, and the other ends of the two reinforced connecting steel bars are respectively welded with the two side supporting vertical steel bars.
In order to improve the shearing force of the laminated plate surface, the rear-mounted truss type laminated plate is preferably used, the left side and the right side of the middle part and the lower end of the upper end of the steel bar truss are respectively provided with an upper positioning arc and a lower positioning arc, the top end of the inner side wall of the upper positioning arc is welded with the upper end surface of the outer side wall of the upper chord steel bar, and the upper end surface of the outer side wall of the lower positioning arc is welded with the lower end surface of the outer side wall of the lower chord steel bar.
In order to realize longitudinal force transmission of the steel bar truss, the rear-mounted truss type composite slab is preferably used, the upper end surfaces of the two middle supporting vertical steel bars are fixedly connected with upper annular sleeves, and the front end and the rear end of the upper chord steel bar penetrate through the upper annular sleeves and are welded and fixed with the upper annular sleeves.
In order to realize transverse force transmission of the steel bar truss, the rear-mounted truss type composite slab is preferably used, the upper end surfaces of the two side supporting vertical steel bars are fixedly connected with lower annular sleeves, and the front end and the rear end of the lower chord steel bar penetrate through the lower annular sleeves and are welded and fixed with the lower annular sleeves.
In order to improve the heat preservation effect of the laminated slab, the rear-mounted truss-type laminated slab is preferably used, the laminated slab body is formed by solidifying concrete, and a heat preservation mortar layer and a cement sand layer are sequentially arranged inside the concrete from bottom to top.
In order to enhance the connection strength between the middle support vertical steel bars and the side support vertical steel bars and the laminated slab body, the rear-mounted truss type laminated slab is preferably characterized in that embedded reinforcing seats are welded to the lower end faces of the two middle support vertical steel bars and the lower end faces of the two side support vertical steel bars, and the embedded reinforcing seats are located above the cement sand layer.
Compared with the prior art, the utility model has the beneficial effects that:
1. the rear-mounted truss type laminated slab comprises an upper positioning arc and a lower positioning arc which are respectively welded with an upper chord steel bar and a lower chord steel bar, the two ends of the upper chord steel bar and the lower chord steel bar respectively penetrate through an upper annular sleeve and a lower annular sleeve, so that a middle supporting vertical steel bar and a side supporting vertical steel bar are convenient to support and fix the upper chord steel bar and the lower chord steel bar, the reinforcing connecting steel bars are reinforced to improve the strength and rigidity of the middle supporting vertical steel bar and the side supporting vertical steel bar, meanwhile, the steel bar trusses are ensured not to be easily deformed and dislocated, a plurality of steel bar trusses are triangular, reinforcing arc bars and reinforcing ribs are welded and fixed on the inner side walls of the steel bar trusses, the compression resistance of the steel bar trusses is improved, pre-embedded reinforcing seats are welded on the lower end faces of the two middle supporting vertical steel bars and the two side supporting vertical steel bars, the pre-embedded reinforcing seats are positioned above a cement sand layer, and the connecting strength between the middle supporting vertical steel bar and the side supporting vertical steel bar and the laminated slab body is enhanced, the shearing force of the laminated plate surface is improved, and the transverse and longitudinal stress force transmission of the steel bar truss is facilitated.
Drawings
FIG. 1 is an overall block diagram of a rear loading truss type composite slab of the present invention;
fig. 2 is a structural view of the steel bar truss according to the present invention.
In the figure, 1, a bottom plate; 2. a laminated slab body; 201. a heat-insulating mortar layer; 202. a cement sand layer; 3. a steel bar truss; 301. an upper positioning arc; 302. a lower positioning arc; 303. reinforcing the arc ribs; 304. reinforcing ribs; 4. middle support vertical steel bars; 401. an upper annular sleeve; 5. side-supported vertical rebars; 501. a lower annular sleeve; 6. upper chord steel bars; 7. a lower chord steel bar; 8. reinforcing the connecting steel bars; 9. and (4) embedding a reinforcing seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-2, the present invention provides a technical solution: a rear-mounted truss type laminated slab comprises a bottom plate 1, a laminated slab body 2 is arranged above the bottom plate 1, a plurality of uniformly distributed steel bar trusses 3 are arranged above the laminated slab body 2, upper chord steel bars 6 are arranged at the top ends of the inner side walls of the plurality of steel bar trusses 3, lower chord steel bars 7 are arranged below the left and right sides of the plurality of steel bar trusses 3, a plurality of uniformly distributed reinforcing arc steel bars 303 are arranged below the upper chord steel bars 6, the left and right sides of the outer side walls of the plurality of reinforcing arc steel bars 303 are welded with the left and right sides of the inner side walls of the steel bar trusses 3, reinforcing ribs 304 are fixedly connected with the inner side walls of the plurality of reinforcing arc steel bars 303, middle support vertical steel bars 4 are arranged below the front and rear ends of the upper chord steel bars 6, side support vertical steel bars 5 are arranged below the front and rear ends of the two lower chord steel bars 7, connecting steel bars 8 are welded on the left and right sides of the two middle support vertical steel bars 4, the other ends of the two reinforcing connecting steel bars 8 are respectively welded with the two side supporting vertical steel bars 5.
In this embodiment: the left and right sides of the middle part and the lower end of the upper end of the steel bar truss 3 are respectively provided with an upper positioning arc 301 and a lower positioning arc 302, the upper positioning arc 301 and the lower positioning arc 302 are respectively welded with an upper chord steel bar 6 and a lower chord steel bar 7, the two ends of the upper chord steel bar 6 and the lower chord steel bar 7 respectively penetrate through an upper annular sleeve 401 and a lower annular sleeve 501, so that the middle supporting vertical steel bar 4 and the side supporting vertical steel bar 5 are convenient to support and fix the upper chord steel bar 6 and the lower chord steel bar 7, the strength and the rigidity of the middle supporting vertical steel bar 4 and the side supporting vertical steel bar 5 are improved by reinforcing connecting steel bars 8, meanwhile, the steel bar truss 3 is ensured not to be deformed and dislocated, a plurality of steel bar trusses 3 are in a triangular shape, reinforcing arc bars 303 and reinforcing bars 304 are welded and fixed on the inner side wall of the steel bar truss 3, the pressure resistance of the steel bar truss 3 is improved, the lower end faces of the two middle supporting vertical steel bars 4 and the two side supporting vertical steel bars 5 are welded with pre-buried reinforcing seats 9, the embedded reinforcing seats 9 are located above the cement sand layer 202, the connection strength of the middle supporting vertical steel bars 4 and the side supporting vertical steel bars 5 and the laminated slab body 2 is enhanced, the shearing force of the laminated slab surface is improved, and the transverse and longitudinal stress force transmission of the steel bar truss 3 is facilitated.
As a technical optimization scheme of the utility model, the left side and the right side of the middle part and the lower end of the upper end of the steel bar truss 3 are respectively provided with an upper positioning arc 301 and a lower positioning arc 302, the top end of the inner side wall of the upper positioning arc 301 is welded with the upper end surface of the outer side wall of the upper chord steel bar 6, and the upper end surface of the outer side wall of the lower positioning arc 302 is welded with the lower end surface of the outer side wall of the lower chord steel bar 7.
In this embodiment: through the upper positioning arc 301 and the lower positioning arc 302, the steel bar truss 3, the upper chord steel bar 6 and the lower chord steel bar 7 are further conveniently welded and fixed, so that the steel bar truss 3 is triangular, and the shearing force of the laminated plate surface is improved.
As a technical optimization scheme of the utility model, the upper end surfaces of two middle supporting vertical steel bars 4 are fixedly connected with upper annular sleeves 401, and the front end and the rear end of an upper chord steel bar 6 penetrate through the upper annular sleeves 401 and are welded and fixed with the upper annular sleeves 401.
In this embodiment: the front end and the rear end of the upper chord steel bar 6 penetrate through the upper annular sleeve 401 and are welded and fixed with the upper annular sleeve 401, so that the connection strength of the middle support vertical steel bar 4 and the upper chord steel bar 6 is enhanced, and meanwhile, the longitudinal stress and force transmission of the steel bar truss 3 are realized.
As a technical optimization scheme of the utility model, the upper end surfaces of the two side supporting vertical steel bars 5 are fixedly connected with lower annular sleeves 501, and the front end and the rear end of the lower chord steel bar 7 penetrate through the lower annular sleeves 501 and are welded and fixed with the lower annular sleeves 501.
In this embodiment: the front end and the rear end of the lower chord steel bar 7 penetrate through the lower annular sleeve 501 and are welded and fixed with the lower annular sleeve 501, so that the connection strength of the lower annular sleeve 501 and the lower chord steel bar 7 is further enhanced, and meanwhile, the steel bar truss 3 is enabled to realize transverse stress and force transmission.
As a technical optimization scheme of the utility model, the laminated slab body 2 is formed by solidifying concrete, and the heat-preservation mortar layer 201 and the cement sand layer 202 are sequentially arranged in the concrete from bottom to top.
In this embodiment: the mortar layer 201 that keeps warm makes superimposed sheet's heat preservation effect improve, and the inside reinforcing bar that sets up of cement sand bed 202 makes superimposed sheet body 2 difficult fracture.
As a technical optimization scheme of the utility model, the lower end faces of the two middle supporting vertical steel bars 4 and the two side supporting vertical steel bars 5 are welded with the embedded reinforcing seats 9, and the embedded reinforcing seats 9 are positioned above the cement sand layer 202.
In this embodiment: with pre-buried solidification of strengthening seat 9 in the muddy earth, further strengthened well support vertical reinforcement 4 and collateral branch and supported vertical reinforcement 5 and superimposed sheet body 2's joint strength.
The working principle is as follows: firstly, an upper positioning arc 301 and a lower positioning arc 302 are respectively welded with an upper chord steel bar 6 and a lower chord steel bar 7, two ends of the upper chord steel bar 6 and the lower chord steel bar 7 respectively penetrate through an upper annular sleeve 401 and a lower annular sleeve 501, so that a middle supporting vertical steel bar 4 and a side supporting vertical steel bar 5 are convenient for supporting and fixing the upper chord steel bar 6 and the lower chord steel bar 7, a reinforcing connecting steel bar 8 is used for improving the strength and rigidity of the middle supporting vertical steel bar 4 and the side supporting vertical steel bar 5, meanwhile, the steel bar trusses 3 are ensured not to be easily deformed and dislocated, a plurality of steel bar trusses 3 are in a triangular shape, reinforcing arc bars 303 and reinforcing ribs 304 are welded and fixed on the inner side walls of the steel bar trusses 3, the pressure resistance of the steel bar trusses 3 is improved, pre-embedded reinforcing seats 9 are welded on the lower end surfaces of the two middle supporting vertical steel bars 4 and the two side supporting vertical steel bars 5, the pre-embedded reinforcing seats 9 are positioned above a cement sand layer 202, the joint strength of the middle support vertical steel bars 4 and the side support vertical steel bars 5 and the laminated slab body 2 is enhanced, so that the shearing force of the laminated slab surface is improved, and the transverse and longitudinal force transmission of the steel bar truss 3 is facilitated.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A rear loading truss type laminated slab comprising a base plate (1), characterized in that: the plywood body (2) is arranged above the bottom plate (1), a plurality of uniformly distributed steel bar trusses (3) are arranged above the plywood body (2), a plurality of upper chord steel bars (6) are arranged at the top ends of the inner side walls of the steel bar trusses (3), a plurality of lower chord steel bars (7) are arranged below the left side and the right side of each steel bar truss (3), a plurality of uniformly distributed reinforcing arc bars (303) are arranged below the upper chord steel bars (6), the left side and the right side of the outer side walls of the reinforcing arc bars (303) are welded with the left side and the right side of the inner side walls of the steel bar trusses (3), reinforcing ribs (304) are fixedly connected to the inner side walls of the reinforcing arc bars (303), middle supporting vertical steel bars (4) are arranged below the front end and the rear end of each upper chord steel bar (6), and side supporting vertical steel bars (5) are arranged below the front end and the rear end of each lower chord steel bar (7), two all the welding of the left and right sides of well support vertical reinforcement (4) has reinforced connecting reinforcement (8), two the other end of reinforced connecting reinforcement (8) welds with two collateral branch support vertical reinforcement (5) respectively.
2. A rear loading truss type composite slab as claimed in claim 1 wherein: the left and right sides of the upper end middle part and the lower end of the steel bar truss (3) are respectively provided with an upper positioning arc (301) and a lower positioning arc (302), the top end of the inner side wall of the upper positioning arc (301) is welded with the upper end face of the outer side wall of the upper chord steel bar (6), and the upper end face of the outer side wall of the lower positioning arc (302) is welded with the lower end face of the outer side wall of the lower chord steel bar (7).
3. A rear loading truss type composite slab as claimed in claim 1 wherein: the upper end face of each middle supporting vertical steel bar (4) is fixedly connected with an upper annular sleeve (401), and the front end and the rear end of each upper chord steel bar (6) penetrate through the upper annular sleeve (401) and are fixedly welded with the upper annular sleeve (401).
4. A rear loading truss type composite slab as claimed in claim 1 wherein: the upper end faces of the two side supporting vertical steel bars (5) are fixedly connected with lower annular sleeves (501), and the front end and the rear end of the lower chord steel bar (7) penetrate through the lower annular sleeves (501) and are fixedly welded with the lower annular sleeves (501).
5. A rear loading truss type composite slab as claimed in claim 1 wherein: superimposed sheet body (2) is solidified by muddy earth and is formed, the inside of muddy earth is from supreme heat preservation mortar layer (201) and the cement sand bed (202) of having set gradually down.
6. A rear loading truss type composite slab as claimed in claim 1 wherein: two the lower terminal surface of well support vertical reinforcement (4) and two side support vertical reinforcement (5) all welds and has pre-buried reinforcing seat (9), pre-buried reinforcing seat (9) are located the top of cement sand bed (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121767630.3U CN215716438U (en) | 2021-07-31 | 2021-07-31 | Back-loading truss type laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121767630.3U CN215716438U (en) | 2021-07-31 | 2021-07-31 | Back-loading truss type laminated slab |
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| Publication Number | Publication Date |
|---|---|
| CN215716438U true CN215716438U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121767630.3U Active CN215716438U (en) | 2021-07-31 | 2021-07-31 | Back-loading truss type laminated slab |
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| Country | Link |
|---|---|
| CN (1) | CN215716438U (en) |
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2021
- 2021-07-31 CN CN202121767630.3U patent/CN215716438U/en active Active
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