CN214220179U - Light steel truss floor support plate without detaching bottom die - Google Patents
Light steel truss floor support plate without detaching bottom die Download PDFInfo
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- CN214220179U CN214220179U CN202023039240.2U CN202023039240U CN214220179U CN 214220179 U CN214220179 U CN 214220179U CN 202023039240 U CN202023039240 U CN 202023039240U CN 214220179 U CN214220179 U CN 214220179U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 173
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
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- 238000010079 rubber tapping Methods 0.000 claims description 8
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- 239000004567 concrete Substances 0.000 abstract description 17
- 238000010276 construction Methods 0.000 abstract description 10
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Abstract
The utility model discloses an exempt from to tear open die block light steel truss building carrier plate specifically passes through the connecting piece by exempting from to tear open die block, light steel truss and connects and form. Wherein the disassembly-free bottom die is made of materials with higher tensile strength, such as fiber cement boards, UHPC thin plates, glass magnesium flat plates and the like; the light steel truss is formed by welding an upper chord steel pipe, a lower chord light steel and web member steel bars; the connecting piece can adopt a positive beating mode or a reverse beating mode and is reliably connected with the bottom die and the lower chord light steel. The utility model is suitable for a superstructure or roof in industry and civil buildings and the general structures in various antidetonation fortification intensity area, be suitable for the structural system and include concrete structure, steel construction and integrated configuration etc.. Compare with ordinary building carrier plate, the utility model discloses can realize die block and truss combination atress, improve upper chord stability, more full play material strength, save material quantity.
Description
Technical Field
The utility model relates to a floor technical field especially relates to building carrier plate technique, specifically is an exempt from to tear open light steel truss building carrier plate of die block.
Background
The floor bearing plate technology has more application experience in the field of steel structures. A floor deck is a member that bears construction load during a construction stage and functions as a floor bottom form, and is generally formed by connecting a plurality of steel bar trusses and bottom forms. The core of the steel bar truss floor support plate technology is a bottom die form and a connection form of the steel bar truss and the bottom die.
The bottom die of the floor support plate which is the earliest and used floor support plate is generally made of thin steel plates, and the steel bar truss and the bottom die are connected by resistance spot welding. The form is convenient for the truss to be connected with the bottom die, and the floor support plate has good integrity. The bottom die has two forms of non-dismantling and dismantling, generally, the bottom die can not be dismantled for buildings with suspended ceilings, and the bottom die generally adopts a galvanized steel plate with the thickness not less than 0.5 mm; when the bottom die is generally required to be dismantled for the building without the suspended ceiling, the bottom die can be made of a non-galvanized steel plate, and the thickness of the bottom die is not smaller than 0.4 mm. For most projects such as houses and the like, a suspended ceiling is not generally arranged, the bottom die needs to be detached at the moment, but the steel bottom die is inconvenient to detach, and after the steel bottom die is detached, the steel bars of the truss are exposed to form rusty spots, so that the steel bottom die is not easy to treat.
In order to solve the problem of dismantling the bottom die of the floor support plate, the detachable floor support plate is transported as required. The die block of removable floor carrier plate generally adopts plastic composite board, aluminum alloy plate, bamboo offset plate etc. (10 ~ 20mm thick), and steel bar truss passes through special connecting piece with the die block to be connected, and special connecting piece generally comprises fixed fastener and screw, is convenient for very much demolish the die block. The standard layer can be used repeatedly after the bottom die is removed. The detachable floor support plate realizes the easy removal of the bottom die, but the flatness of the removed bottom die is still not very high, and the detachable floor support plate still needs to be decorated and processed as a common cast-in-place plate.
Because the effect of reuse is limited after removable floor support plate die block demolishs in the actual engineering, the floor bottom surface still needs traditional decoration processing after the die block is demolishd, considers present prefabricated building to the realistic problems such as the requirement of assembly rate, the application of floor support plate in concrete structure in addition, and the floor support plate technique that the die block exempted from to demolish is used and is given birth to. The bottom die in the disassembly-free floor support plate is made of non-metal flat plates (10-20 mm thick) such as finished fiber cement plates, glass magnesium flat plates, UHPC thin plates and the like, and the steel bar truss is fixedly connected with the bottom die through a special connecting piece.
From the above, the floor deck technology is developing towards the general ideas of 'mold removal free' and 'support free', and the application range is wider and wider, including steel structure, fabricated concrete, combined structure and the like.
The bottom die disassembly-free floor support plate technology is a good research idea, and at present, two application forms are mainly adopted:
the 1 st: the steel bar truss is arranged in a mode of referring to the concrete laminated plate, the steel bar truss can be regarded as a light and standardized laminated plate, and the 'detachment-free mode' is realized, but because the space between the steel bar trusses is large (generally 600mm), temporary support still needs to be arranged in the construction stage, and the 'support-free' is not realized.
The 2 nd: the steel bar truss is arranged by referring to a common floor bearing plate, the space between the trusses is generally 200mm, and the support can be avoided, but because the bottom die and the steel bar truss cannot be combined to bear force, the load in the construction stage is still borne by the steel bar truss, so that the steel consumption of the steel bar truss is large, and the steel bar truss is not economical.
From the above analysis, the current floor support plate technology is developed rapidly, but still has the problems of insufficient economy, limited application range and the like, and in order to solve the problems, a novel floor support plate technology is needed, so that the economy and the applicability are considered while the 'mold disassembly free' and the 'support free' are realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an exempt from to tear open die block light steel truss building carrier plate, it passes through the connecting piece by exempting from to tear open die block, light steel truss and connects and form. The utility model discloses can realize die block and truss combination atress, improve upper chord stability, more full play material strength, save material quantity.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an disassembly-free bottom die light steel truss floor support plate, which is characterized by comprising a disassembly-free bottom die and a plurality of light steel trusses positioned on the disassembly-free bottom die, wherein each light steel truss is connected with the disassembly-free bottom die through a plurality of connecting pieces; each light steel truss is respectively formed by welding an upper chord steel pipe, two web member steel bars and two lower chord light steel; the end parts of the light steel trusses are respectively provided with a support transverse rib and a support vertical rib; and each connecting piece is reliably connected with the disassembly-free bottom die and the light steel truss in a positive beating or reverse beating mode.
Further, the connecting piece adopts stainless steel self-tapping screws or bolts; when the connecting piece adopts the tapping screw, the tapping screw is directly screwed into the disassembly-free bottom die in a rotating way; when the connecting piece adopts a bolt, a hole needs to be drilled in advance, and a bolt rod is connected with the disassembly-free bottom die in a rib planting mode.
The utility model provides an exempt from to tear open die block light steel truss building carrier plate is applicable to the superstructure or the roof in industry and civil buildings and the general structures in various antidetonation fortification intensity area, is suitable for the structural system and includes concrete structure, steel construction and integrated configuration etc.. Compared with the common floor support plate, the utility model has the advantages of as follows:
1) the upper chord of the light steel truss adopts a steel pipe, so that the problem that the maximum unsupported span of the traditional floor support plate is mostly controlled by the instability of the steel bar of the upper chord of the steel bar truss is solved, the stable stress limit value of the upper chord can be improved, and the strength advantage of the material is fully exerted.
2) The lower chord of the light steel truss is made of light steel, so that the light steel truss is convenient to connect with the bottom die, and the connection quality is easy to guarantee.
3) The bottom die and the light steel truss form a combined member, bear load together and reduce the steel consumption of the light steel truss.
4) The construction is convenient, the temporary support can not be arranged under the general condition, and the 'mould disassembly free' and the 'support free' can be realized at the same time.
Drawings
Fig. 1 is a three-dimensional schematic view of a bottom-die-removal-free light steel truss floor deck according to an embodiment of the present invention.
Fig. 2 (a) and (b) are schematic structural diagrams of a plane and a longitudinal section of a bottom-die-removal-free light steel truss floor deck according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional structural view of a bottom-die-removal-free light steel truss floor deck according to an embodiment of the present invention.
Fig. 4 (a) - (d) are schematic diagrams of connecting members and connecting details of different forms of the non-dismantling bottom die light steel truss floor deck according to the embodiment of the present invention.
Fig. 5 is a schematic view of a structure of a support transverse rib and a support vertical rib of a bottom-die-removal-free light steel truss floor support plate according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a light steel truss concrete slab formed by a non-dismantling bottom die light steel truss floor deck according to an embodiment of the present invention.
Fig. 7 is a schematic view of a connection structure between a bottom-die-removal-free light steel truss floor support plate and a steel beam support according to an embodiment of the present invention.
Fig. 8 is a schematic view of a connection structure between a bottom-die-removal-free light steel truss floor support plate and a concrete beam or a wall support according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In order to understand the utility model discloses, following elaboration the utility model provides an exempt from to tear open application example of die block light steel truss building carrier plate.
Referring to fig. 1-3, the utility model discloses exempt from to tear open light steel truss building carrier plate of die block, including exempting from to tear open die block 1 and being located exempt from to tear open a plurality of light steel trusses 2 on the die block 1, each light steel truss 2 and exempt from to tear open and equally divide between the die block 1 and do not be connected through connecting piece 3. The end parts of the light steel trusses 2 are respectively provided with a support transverse rib 4 and a support vertical rib 5 which are used for supporting the support. The non-dismantling bottom die 1 is 600-2400 mm wide B, and the length L is determined according to room size and stress calculation. The distance between the light steel trusses 2 is 300-600 mm.
The following describes specific implementations of the components in the present embodiment, respectively:
the non-dismantling bottom die 1 can be made of fiber cement boards, glass magnesium flat boards, UHPC (Ultra-High Performance Concrete) thin boards and other finished boards, and the thickness of the non-dismantling bottom die 1 is 10-20 mm.
Referring to fig. 3, each light steel truss 2 has the same structure and is formed by welding an upper chord steel pipe 21, two web member steel bars 22 and two lower chord light steel bars 23, the width b of the light steel truss is 100-200 mm, the height h of the light steel truss is 95-225 mm, the upper chord steel pipe 21 is generally a light round steel pipe, the diameter of the light round steel pipe is 25-50 mm, and the wall thickness of the light steel truss is 2-4 mm; the web member steel bar 22 is wave-shaped and is generally formed by continuously bending one steel bar (as shown in fig. 2 (b)), and the pitch distance c is 150-250 mm; the lower chord light steel 23 can be L-shaped, C-shaped or rectangular light steel, which is respectively shown in (a) - (d) of FIG. 5, the cross-sectional height of the lower chord light steel 23 is generally 25mm, the cross-sectional width is 25-50 mm, and the wall thickness is 2-4 mm. In addition, the upper chord steel pipe 21, the web member steel bars 22 and the lower chord light steel 23 form a space truss together with the non-dismantling bottom die 1 through the connecting piece 3.
The lower chord light steel 23 of each light steel truss 2 is connected with the disassembly-free bottom die 1 through a connecting piece 3, the connecting piece 3 can adopt a forward hitting mode or a backward hitting mode, the connecting piece 3 can adopt stainless steel tapping screws or bolts, the L-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode from top to bottom in (a) in fig. 4, the L-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a backward hitting mode from bottom to top in (b) in fig. 4, the C-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode in (C) in fig. 4, and the rectangular light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode in (d) in fig. 4. When the direct hitting mode is adopted, the connecting piece 3 penetrates through the lower chord lightweight steel 23 from top to bottom and penetrates into the disassembly-free bottom die 1 for anchoring; when the reverse beating mode is adopted, the connecting piece 3 sequentially penetrates through the non-dismantling bottom die 1 and the lower chord light steel 23 from bottom to top and is fastened on the lower chord light steel 23 by adopting the matched nut 31. When the connecting piece 3 adopts a self-tapping screw, the screw can be directly screwed into the disassembly-free bottom die 1 without drilling holes generally; when the bolt is adopted, the hole can be drilled in advance, and the bolt rod is connected with the disassembly-free bottom die 1 in a rib planting mode.
Referring to fig. 5, the end of the light steel truss 2 is provided with a support transverse rib 4 and a support vertical rib 5 for supporting the support, wherein the two ends of the support transverse rib 4 are welded with the inner side of the corresponding lower chord light steel 23, the upper end of the support vertical rib 5 is welded with the bottom surface of the upper chord steel pipe 21, and the lower end side of the support vertical rib 5 is welded with the middle side of the support transverse rib 4. The diameter of the horizontal rib 4 of support and the vertical rib 5 of support is 12 ~ 16 mm.
Referring to fig. 6, during construction, a plurality of detachment-free bottom die light steel truss floor support plates are spliced together, a splicing seam 8 is formed between two adjacent detachment-free bottom die light steel truss floor support plates, then lower transverse steel bars 61 and lower longitudinal steel bars 62 are laid at the lower chord light steel 23, wherein the lower transverse steel bars 61 are perpendicular to the light steel trusses 2 and are arranged at the upper parts of the lower chord light steel 23, and the lower longitudinal steel bars 62 are parallel to the light steel trusses 2 and are arranged at the lower sides of the lower transverse steel bars 61; and then laying an upper transverse steel bar 63 and an upper longitudinal steel bar 64 at the upper chord steel pipe 21, wherein the upper transverse steel bar 63 is perpendicular to the light steel truss 2 and is arranged at the upper part of the upper chord steel pipe 21, and the upper longitudinal steel bar 64 is parallel to the light steel truss 2 and is arranged at the lower side of the upper transverse steel bar 63. The number of the upper and lower transverse steel bars and the number of the upper and lower longitudinal steel bars should meet the stress calculation requirement in the use stage, the diameter of the lower transverse steel bar 61 and the diameter of the lower longitudinal steel bar 62 are not less than 8mm, and the distance between the lower transverse steel bar and the lower longitudinal steel bar is not less than 200 mm. And after the steel bars are laid, concrete 7 is poured, and the light steel truss floor bearing plate, the steel bars laid on site and the cast-in-place concrete form the light steel truss concrete slab. The thickness of the concrete slab is generally the height of the light steel truss plus 25 mm.
Referring to fig. 7 and 8, when the disassembly-free bottom die light steel truss floor support plate is used for a steel structure or a combined structure, the support is generally a steel beam 10, the vertical ribs 5 of the support are welded and fixed with the top surface of the steel beam 10 during installation, and at the moment, temporary supports are not required to be arranged at the end parts of the floor support plate; when the floor bearing plate is used for a concrete structure, the support is generally a concrete beam or wall 11, support angle steel 12 is arranged on the side face of the top of the concrete beam or wall 11 in advance, the support angle steel 12 is fixed on the concrete beam or wall 10 through a fixing piece 15, the fixing piece 15 can adopt an anchor bolt, a screw rod and the like, and the end part of the light steel truss 2 is directly placed on the support angle steel 12 during installation without arranging a temporary support. After installation, the support additional upper rib 13 and the support additional lower rib 14 are arranged at the support, the reinforcing steel bars at the other parts are bound at the same time, and concrete is poured to complete floor slab construction.
The utility model provides an exempt from to tear open die block light steel truss building carrier plate is applicable to the superstructure or the roof in industry and civil buildings and the general structures in various antidetonation fortification intensity area, is suitable for the structural system and includes concrete structure, steel construction and integrated configuration etc.. Compare with ordinary building carrier plate, the utility model discloses can realize die block and truss combination atress, improve upper chord stability, more full play material strength, save material quantity.
In the description herein and in the drawings, the products and methods of the present invention are described in terms of particular shapes, materials, or process sequences, and specific parameters are provided for illustrative purposes with respect to specific embodiments. It should be understood, however, that the detailed description is not intended to limit the invention; that is, modifications and variations to the shapes, materials, or process sequences are still included within the spirit and scope of the invention.
Claims (8)
1. The disassembly-free bottom die light steel truss floor support plate is characterized by comprising a disassembly-free bottom die (1) and a plurality of light steel trusses (2) positioned on the disassembly-free bottom die (1), wherein each light steel truss (2) is connected with the disassembly-free bottom die (1) through a plurality of connecting pieces (3); each light steel truss (2) is respectively formed by welding an upper chord steel pipe (21), two web member steel bars (22) and two lower chord light steel bars (23); the end parts of the light steel trusses (2) are respectively provided with a support transverse rib (4) and a support vertical rib (5); each connecting piece (3) is reliably connected with the disassembly-free bottom die (1) and the light steel truss (2) in a positive beating or reverse beating mode.
2. The detachment-free bottom die light steel truss floor deck according to claim 1, wherein the detachment-free bottom die (1) is made of a finished board material including a fiber cement board, a glass magnesium flat board or a UHPC thin board.
3. The detachment-free bottom die light steel truss floor deck according to claim 1, wherein the connecting piece (3) is made of stainless steel tapping screws or bolts; when the connecting piece (3) adopts the tapping screw, the tapping screw is directly screwed into the non-dismantling bottom die (1) in a rotating way; when the connecting piece (3) adopts a bolt, a hole needs to be drilled in advance, and a bolt rod is connected with the disassembly-free bottom die (1) in a rib planting mode.
4. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the upper chord steel pipe (21) is a light round steel pipe, the diameter of the light round steel pipe is 25-50 mm, and the wall thickness of the light round steel pipe is 2-4 mm; the web member steel bars (22) are wavy and are formed by continuously bending one steel bar, and the pitch distance is 150-250 mm; the lower chord light steel (23) is L-shaped, C-shaped or rectangular light steel, the height of the lower chord light steel (23) is 25mm, the width of the lower chord light steel is 25-50 mm, and the wall thickness of the lower chord light steel is 2-4 mm.
5. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein two ends of the support transverse ribs (4) are welded to the inner sides of the corresponding lower chord light steel (23), the upper ends of the support vertical ribs (5) are welded to the bottom surfaces of the upper chord steel pipes (21), and the lower end side surfaces of the support vertical ribs (5) are welded to the middle side surfaces of the support transverse ribs (4).
6. The disassembly-free bottom die light steel truss floor support plate as claimed in claim 1, wherein the disassembly-free bottom die (1) has a thickness of 10-20 mm and a width of 600-2400 mm.
7. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the light steel trusses (2) have a width of 100-200 mm, a height of 95-225 mm and a distance of 300-600 mm.
8. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the diameter of the support transverse ribs (4) and the support vertical ribs (5) is 12-16 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023039240.2U CN214220179U (en) | 2020-12-16 | 2020-12-16 | Light steel truss floor support plate without detaching bottom die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023039240.2U CN214220179U (en) | 2020-12-16 | 2020-12-16 | Light steel truss floor support plate without detaching bottom die |
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| CN214220179U true CN214220179U (en) | 2021-09-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059700A (en) * | 2021-11-30 | 2022-02-18 | 新城控股集团股份有限公司 | Formwork-free laminated slab of steel bar keel steel plate and concrete and implementation method |
| CN114753538A (en) * | 2022-04-28 | 2022-07-15 | 重庆赛迪工程咨询有限公司 | Non-dismantling bottom formwork floor slab for different-surface construction and construction method |
-
2020
- 2020-12-16 CN CN202023039240.2U patent/CN214220179U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114059700A (en) * | 2021-11-30 | 2022-02-18 | 新城控股集团股份有限公司 | Formwork-free laminated slab of steel bar keel steel plate and concrete and implementation method |
| CN114753538A (en) * | 2022-04-28 | 2022-07-15 | 重庆赛迪工程咨询有限公司 | Non-dismantling bottom formwork floor slab for different-surface construction and construction method |
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Address after: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Patentee after: CHINA ACADEMY OF BUILDING RESEARCH Ltd. Patentee after: China Construction Research Technology Co.,Ltd. Address before: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Patentee before: CHINA ACADEMY OF BUILDING RESEARCH Ltd. Patentee before: CABR TECHNOLOGY Co.,Ltd. |
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