CN216446277U - Steel bar truss floor support plate with detachable bottom plate - Google Patents
Steel bar truss floor support plate with detachable bottom plate Download PDFInfo
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- CN216446277U CN216446277U CN202122421644.6U CN202122421644U CN216446277U CN 216446277 U CN216446277 U CN 216446277U CN 202122421644 U CN202122421644 U CN 202122421644U CN 216446277 U CN216446277 U CN 216446277U
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Abstract
The utility model relates to a steel bar truss floor bearing plate with a detachable bottom plate, which comprises a bottom plate, a steel bar truss on the upper surface of the bottom plate and a plurality of connecting ribs, wherein a row of through holes are formed in the bottom plate, a positioning rod piece is arranged on the lower surface of the bottom plate, a lower positioning hook is arranged at the lower end of each connecting rib, an upper positioning hook is arranged at the upper end of each connecting rib, the connecting ribs penetrate through the through holes, the lower positioning hooks hook the positioning rod pieces tightly, and the upper positioning hooks hook the steel bar truss tightly. The steel bar truss floor support plate is simple in structure, the connecting ribs can be made of common building materials such as common steel bars, the cost is low, the steel bar truss floor support plate is convenient to assemble and disassemble, and the construction efficiency is improved.
Description
Technical Field
The utility model relates to the field of steel bar truss floor bearing plates, in particular to a steel bar truss floor bearing plate with a detachable bottom plate.
Background
The requirements in the 'steel bar truss floor bearing plate' JG/T368-2012 are as follows: the upper and lower chords of the steel bar truss adopt HRB400 and HPB300 steel bars; the web members adopt HRB400 cold-rolled steel bars; the transverse ribs and the vertical ribs of the support adopt HRB400 and HPB300 steel bars; the bottom plate adopts Q235 cold-rolled steel plate or galvanized steel plate with the grade not lower than S250GD + Z. The galvanized steel sheet has a galvanizing amount of not less than 120g/m on both sides2。
The steel bar truss and the bottom plate are welded and connected into a whole and are not detachable. After concrete pouring is finished, the bottom surface of the floor slab is a steel plate, decoration plastering or drilling is inconvenient to carry out threading and laying, the bottom plate is only a supporting template, once investment is realized, recycling is not realized, and the use cost is high.
CN201110065353.6 discloses a construction method of a steel bar truss floor support plate and a steel bar truss floor support plate, where the steel bar truss floor support plate includes a bottom plate and a plurality of steel bar trusses connected to the bottom plate, where a plurality of connecting members are connected to the lower portion of each steel bar truss, each connecting member is detachably connected to the bottom plate below the connecting member, and a sheath is provided below the connecting member to seal the connection between the connecting member and the bottom plate, where the connecting member is a bolt. Because the concrete construction is carried out on the bottom plate, a protective sleeve protecting bolt is required to be arranged to prevent the bolt from being buried in the concrete and being incapable of being disassembled, the whole connecting structure is complex, the hole formed by the protective sleeve is required to be filled after the bolt is disassembled, and the construction is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a steel bar truss floor bearing plate with a detachable bottom plate, which is simpler in structure and convenient to construct.
The technical scheme adopted by the utility model for solving the technical problems is as follows: bottom plate detachable steel bar truss building carrier plate still includes many splice bars including the steel bar truss of bottom plate and bottom plate upper surface, be provided with one row of through-hole on the bottom plate, the lower surface of bottom plate is provided with the positioning rod piece, the lower extreme of splice bar is provided with down the location hook, and the upper end is provided with the location hook, the splice bar runs through the through-hole, and down the location hook hookup positioning rod piece, goes up the location hook hookup steel bar truss.
Further, the positioning rod is a steel pipe.
Further, the positioning rod presses the bottom plate under the action of the lower positioning hook.
Further, the steel bar truss comprises an upper chord and two lower chords, the upper chord is connected with the lower chord through a connecting rod, and the upper positioning hook hooks one of the lower chords.
Furthermore, a plurality of support rods are arranged on the outer side of the lower chord, two ends of each support rod are connected with the lower chord, and the middle positions of the support rods are far away from the support rods.
Further, the support rod is V-shaped or arc-shaped.
Furthermore, the two ends of the lower chord are connected through a support cross rod, and the two ends of the upper chord are connected with the support cross rod through a support vertical rod.
Further, the connecting rib is a steel bar or a steel plate.
The utility model has the beneficial effects that: the connecting rib and the positioning rod piece are adopted to connect the bottom plate and the steel bar truss, one end of the connecting rib is bent into the lower positioning hook according to the shape of the positioning rod piece in advance before construction, the other end of the connecting rib keeps a straight line shape, during construction, a straight line section of the connecting rib penetrates through the through hole, the lower positioning hook is used for hooking the positioning rod piece, at the moment, the straight line end of the connecting rib leans against the steel bar truss, then the straight line end of the connecting rib is bent towards the direction of the steel bar truss to form the upper positioning hook, the upper positioning hook gradually hooks the steel bar truss in the bending process, and meanwhile, the lower positioning hook is gradually tightened to enable the lower positioning hook to hook the positioning rod piece tightly. After the concrete construction is finished, the connecting ribs are cut off from the lower portion of the bottom plate, and the bottom plate can be detached, so that the bottom plate and the positioning rod piece can be repeatedly utilized. The steel bar truss floor support plate is simple in structure, the connecting ribs can be made of common building materials such as common steel bars or steel plates, cost is low, disassembly and assembly are convenient, and construction efficiency is improved.
Drawings
Fig. 1 is a schematic sectional view of a steel bar truss floor deck of the utility model;
fig. 2 is a schematic top view of a steel bar truss floor deck of the utility model;
reference numerals: 1-a bottom plate; 2-a through hole; 3, positioning a rod piece; 4-connecting ribs; 41-lower positioning hook; 42-upper positioning hook; 51-upper chord; 52 — lower chord; 53-connecting rod; 54-a support bar; 55-support cross bar; 56-vertical support rod.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and 2, the floor support plate with a detachable bottom plate comprises a bottom plate 1, a steel bar truss on the upper surface of the bottom plate 1, and a plurality of connecting ribs 4, wherein a row of through holes 2 are formed in the bottom plate 1, a positioning rod 3 is arranged on the lower surface of the bottom plate 1, a lower positioning hook 41 is arranged at the lower end of each connecting rib 4, an upper positioning hook 42 is arranged at the upper end of each connecting rib 4, the connecting ribs 4 penetrate through the through holes 2, the lower positioning hooks 41 hook the positioning rod 3 tightly, and the upper positioning hooks 42 hook the steel bar truss tightly.
The bottom plate 1 is made of a Q235 steel plate, the steel bar truss is formed by welding a plurality of steel bars, various existing steel bar truss structures can be adopted, and as a preferred embodiment, the steel bar truss comprises an upper chord member 51 and two lower chord members 52, the upper chord member 51 is connected with the lower chord members 52 through a connecting rod 53, the section of the steel bar truss is in an isosceles triangle shape, the upper chord member 51 is positioned at the top point of the isosceles triangle, the two lower chord members 52 are positioned at two ends of the bottom edge of the isosceles triangle, and the steel bar truss structure is strong in stability and can bear large load.
The outer side of the lower chord 52 is provided with a plurality of support rods 54, the two ends of each support rod 54 are connected with the lower chord 52, the middle positions of the support rods 54 are far away from the support rods 54, the contact area between the steel bar truss and the bottom plate 1 can be increased, the support range is enlarged, and the support stability of the bottom plate 1 on the steel bar truss is further improved. The support bar 54 may be in the shape of a V or a circular arc.
In addition, the two ends of the lower chord 52 are connected through the support cross rod 55, and the two ends of the upper chord 51 are connected with the support cross rod 55 through the support vertical rods 56, so that the structural strength of the two ends of the steel bar truss can be improved.
In order to facilitate the disassembly of the bottom plate 1 after construction, at least one row of through holes 2 are formed in the bottom plate 1, the diameter of each through hole 2 is preferably 100mm, the through holes 2 are spaced at a proper distance, and the number of the through holes 2 is determined according to the length of the bottom plate 1 and the length of the steel bar truss. The positioning rod piece 3 is used for auxiliary positioning and is positioned at the lower end hole opening of the through hole 2. The positioning rod piece 3 can be fixedly connected with the bottom plate 1, such as welded, or connected through a screw which does not penetrate through the bottom plate 1, and the like, as an optimal implementation mode, the positioning rod piece 3 is separated from the bottom plate 1 at ordinary times, the positioning rod piece 3 is abutted to the lower surface of the bottom plate 1 during construction, and the positioning rod piece 3 is tensioned during subsequent construction of the connecting ribs 4, so that the weight of the bottom plate 1 can be reduced, the moving and laying difficulty is reduced, and the laying efficiency of the bottom plate 1 is improved. The positioning rod 3 may be a rod with a cross section in a rectangular shape, a circular shape, etc., and preferably, the positioning rod 3 is a steel pipe, and the outer diameter of the steel pipe is preferably 50 mm.
The connecting rib 4 is used for fixing the bottom plate 1 and the steel bar truss together, and before construction, at least one end of the connecting rib 4 is kept in a straight line shape, namely the upper positioning hook 42 is not formed, or the upper positioning hook 42 and the lower positioning hook 41 are not formed. As a preferred embodiment, one end of each of the connecting ribs 4 may be uniformly bent to form the lower positioning hook 41, while the other end is kept straight to pass through the through-hole 2.
During construction, the bottom plate 1 is laid on a steel beam, the positioning rod piece 3 is placed on the lower surface of the bottom plate 1, the positioning rod piece 3 is located at a lower end orifice of the through hole 2, the straight end of the connecting rib 4 upwards penetrates through the through hole 2, the lower positioning hook 41 of the connecting rib 4 hooks the positioning rod piece 3, the straight end of the connecting rib 4 leans against the steel bar truss, the straight end of the connecting rib 4 is bent towards the steel bar truss, the upper positioning hook 42 is gradually formed, the steel bar truss is tightly hooked by the upper positioning hook 42, meanwhile, the positioning rod piece 3 is gradually tightly hooked by the lower positioning hook 41, the positioning rod piece 3 tightly presses the bottom plate 1 under the action of the lower positioning hook 41, and the positioning rod piece 3, the bottom plate 1 and the steel bar truss are integrated. The upper positioning hook 42 can hook the upper chord 51 of the steel bar truss, and as a preferred embodiment, the upper positioning hook 42 hooks one of the lower chords 52, so that the length of the connecting rib 4 can be reduced. The connecting bar 4 can be made of steel bars or steel plates, materials are obtained on site, and the implementation cost is low.
After the concrete construction is finished, the connecting ribs 4 can be cut off from the lower part of the bottom plate 1, then the positioning rod pieces 3 and the bottom plate 1 can be taken down, the positioning rod pieces 3 and the bottom plate 1 are recycled, and the upper parts of the connecting ribs 4 are remained in the concrete without influencing the strength of the concrete.
The utility model adopts the connecting rib 4 as the connecting piece, has convenient construction, simple structure and low cost.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Bottom plate detachable steel bar truss building carrier plate includes the steel bar truss of bottom plate (1) and bottom plate (1) upper surface, its characterized in that: still include many splice bars (4), be provided with one row at least through-hole (2) on bottom plate (1), the lower surface of bottom plate (1) is provided with positioning rod piece (3), the lower extreme of splice bar (4) is provided with down positioning hook (41), and the upper end is provided with positioning hook (42), through-hole (2) are run through in splice bar (4), and positioning hook (41) hook tight positioning rod piece (3) down, go up positioning hook (42) and hook tight steel bar truss.
2. The floor-demountable steel truss floor deck as set forth in claim 1, wherein: the positioning rod piece (3) is a steel pipe.
3. The floor plate-detachable steel bar truss floor deck as claimed in claim 1 or 2, wherein: the positioning rod piece (3) is pressed on the bottom plate (1) under the action of the lower positioning hook (41).
4. The floor-demountable steel truss floor deck as set forth in claim 1, wherein: the steel bar truss comprises an upper chord (51) and two lower chords (52), the upper chord (51) is connected with the lower chords (52) through a connecting rod (53), and the upper positioning hook (42) is tightly hooked with one of the lower chords (52).
5. The floor-demountable steel truss floor deck as set forth in claim 4, wherein: the supporting rods (54) are arranged on the outer sides of the lower chords (52), two ends of each supporting rod (54) are connected with the lower chords (52), and the middle positions of the supporting rods (54) are far away from the supporting rods (54).
6. The floor-demountable steel truss floor deck as set forth in claim 5, wherein: the support rod (54) is V-shaped or circular arc-shaped.
7. The steel bar truss floor deck with a detachable bottom plate as claimed in claim 4, wherein: the two ends of the lower chord (52) are connected through a support cross rod (55), and the two ends of the upper chord (51) are connected with the support cross rod (55) through a support vertical rod (56).
8. The floor-demountable steel truss floor deck as set forth in claim 1, wherein: the connecting ribs (4) are steel bars or steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122421644.6U CN216446277U (en) | 2021-10-08 | 2021-10-08 | Steel bar truss floor support plate with detachable bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122421644.6U CN216446277U (en) | 2021-10-08 | 2021-10-08 | Steel bar truss floor support plate with detachable bottom plate |
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| CN216446277U true CN216446277U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122421644.6U Active CN216446277U (en) | 2021-10-08 | 2021-10-08 | Steel bar truss floor support plate with detachable bottom plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142604A (en) * | 2022-07-15 | 2022-10-04 | 江苏昊钢建筑科技有限公司 | High-efficient steadiness steel bar truss building carrier plate |
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2021
- 2021-10-08 CN CN202122421644.6U patent/CN216446277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142604A (en) * | 2022-07-15 | 2022-10-04 | 江苏昊钢建筑科技有限公司 | High-efficient steadiness steel bar truss building carrier plate |
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