CN212376113U - Bottom template support-free steel truss concrete floor support plate structure - Google Patents
Bottom template support-free steel truss concrete floor support plate structure Download PDFInfo
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- CN212376113U CN212376113U CN202020662511.0U CN202020662511U CN212376113U CN 212376113 U CN212376113 U CN 212376113U CN 202020662511 U CN202020662511 U CN 202020662511U CN 212376113 U CN212376113 U CN 212376113U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 119
- 239000010959 steel Substances 0.000 title claims abstract description 119
- 238000003466 welding Methods 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 38
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 19
- 210000001503 joint Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
Supporting formula steel truss concrete building carrier plate structure is exempted from to die block board, the welding of die block board upper surface has the U type splice bar of the equal vertical setting of a plurality of, every U type splice bar all is connected with V type horizontal segment, the left side of every die block board upper surface is equipped with a plurality of left connecting pipe along the even interval of fore-and-aft direction, the right side of every die block board upper surface is equipped with a plurality of right connecting pipe along the even interval of fore-and-aft direction, the central line of left connecting pipe and right connecting pipe all sets up along controlling the direction level, the quantity of left connecting pipe and right connecting pipe equals and controls the one-to-one, the left end of left connecting pipe flushes with the left side limit of die block board, the right-hand member of right. The utility model relates to a rationally, the structure is solid reliable, and the die block board exempts from to support and exempts from to tear open, has reduced the construction process, has improved the efficiency of construction, also improves the compressive strength of building carrier plate, has stronger construction commonality, easily popularizes and applies on the market.
Description
Technical Field
The utility model belongs to the technical field of building engineering, concretely relates to formula steel truss concrete building carrier plate structure is exempted from to support by die block board.
Background
When the steel truss floor support plate is cast in place, a plurality of bottom formworks are horizontally supported firmly by adopting a steel pipe scaffold and profile steel, then a plurality of steel trusses which are arranged in parallel at intervals are laid above the bottom formworks, finally concrete is poured on the bottom formworks, the steel trusses are poured in the concrete, the bottom formworks, the steel pipe scaffold and the profile steel are dismantled after the concrete is solidified, although the bottom formworks can be reused, more labor and time costs are increased in the dismantling process. In addition, the top beam of the steel truss adopts a square pipe or a round pipe, the inside of the steel truss is of a hollow structure, and the compressive strength is weak.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide a die block board need not dismantle after the concrete sets, the efficiency of construction is high, the die block board that steel truss compressive strength is high exempts from to support formula steel truss concrete building carrier plate structure.
In order to solve the technical problem, the utility model adopts the following technical scheme: the bottom template is a support-free steel truss concrete floor support plate structure, the bottom template is made of stainless steel plates, the bottom template is horizontally arranged, the steel trusses are arranged on the bottom template along the front-back horizontal direction, and 2 groups or 3 groups of steel trusses are uniformly arranged above each bottom template along the left-right direction at intervals; each group of steel trusses comprises a top beam, two groups of wave-shaped steel bars and two groups of bottom straight steel bars, the top beam and the bottom straight steel bars are horizontally arranged along the front-back direction, the tops of the two groups of wave-shaped steel bars are respectively welded on the left side and the right side of the top beam, the lower parts of the two groups of wave-shaped steel bars are respectively bent outwards to form a V-shaped horizontal section, the bottom straight steel bars are arranged at the bent parts of the wave-shaped steel bars and are welded with the wave-shaped steel bars, a plurality of U-shaped connecting bars which are vertically arranged are welded on the upper surface of a bottom template, each U-shaped connecting bar is connected with the V-shaped horizontal section, a plurality of left connecting pipes are uniformly arranged on the left side of the upper surface of each bottom template along the front-back direction at intervals, a plurality of right connecting pipes are uniformly arranged on the right side of the upper surface of each, the left end of the left connecting pipe is flush with the left side edge of the bottom template, and the right end of the right connecting pipe is flush with the right side edge of the bottom template.
The opening of the left U type splice bar of steel truss faces left, and left V type horizontal segment bottom joint is in the inside of left U type splice bar, and the opening of the U type splice bar on steel truss right side faces right, and the V type horizontal segment bottom joint on right side is in the inside of the U type splice bar on right side.
The back timber includes the steel pipe and the reinforcing bar that length equals, the one end of steel pipe sets up the baffle, reinforcing bar wears to establish in the steel pipe along the steel pipe central line, reinforcing bar outside is equipped with three group's direction centering structures along length direction at least, the direction centering structure includes three spinal branch poles that set up along the radial direction of steel pipe, three spinal branch poles evenly arrange along reinforcing bar's circumferencial direction, the inner welding of branch is on reinforcing bar, branch outer end and the contact of steel pipe inner wall, mortar or concrete have been pour in the annular cavity that forms between the steel pipe inside and the reinforcing bar outside.
The left positioning notch is formed in the top of the left end of the left connecting pipe, and the right positioning notch is formed in the top of the left end of the right connecting pipe.
Adopt above-mentioned technical scheme, the back timber is before with two group wave reinforcing bar welding, stretch into the steel pipe with the reinforcing bar earlier, the branch outer end of direction centering structure slides along the steel pipe inner wall, ensure reinforcing bar and steel pipe and keep the concentricity, then with the vertical setting of steel pipe, the opening end of steel pipe up, pour mortar or concrete in the annular cavity that forms to between steel pipe and the reinforcing bar through port on the steel pipe, just so pour steel pipe and reinforcing bar as an organic whole, the compressive strength of steel pipe has been improved greatly. And after mortar or concrete in the steel pipe is solidified, welding the top beam, the two groups of wave-shaped steel bars and the two bottom straight steel bars to form the steel truss. Meanwhile, a left connecting pipe and a right connecting pipe are respectively welded on the left side and the right side of the upper surface of the bottom template, then a row of U-shaped connecting ribs are welded according to the sequence from left to right, the V-shaped horizontal section on the left side of the bottom of the steel truss is hung in the row of U-shaped connecting ribs, then the U-shaped connecting ribs are respectively and correspondingly sleeved on the V-shaped horizontal section on the right side of the bottom of the steel truss, and then the lower parts of the U-shaped connecting ribs are correspondingly welded on the bottom template. According to the assembling process, one or two groups of steel trusses below are firmly connected with the corresponding U-shaped connecting ribs.
The assembly process is performed in a factory. After the assembled structure is transported to a construction site, the assembled structure is hoisted to a construction position by a tower crane, when two adjacent bottom formworks are butted, a plurality of T-shaped bolts (two short steel bars which are vertically welded) are specially processed for positioning connection, the left bottom formwork is supposed to be hoisted in place and fixed, the middle part of the T-shaped bolt is held by hand, the left end of the horizontal section of the T-shaped bolt is inserted into a right connecting pipe on one bottom formwork from right to left, the diameter of the horizontal section of the T-shaped bolt is smaller than the inner diameter of the left connecting pipe and the right connecting pipe by 1-2mm, the holding part of the T-shaped bolt is moved to the left in a right positioning gap at the upper part of the right end of the right connecting pipe from left to left, then one bottom formwork on the right is hoisted to the same height and moved to the left, the right ends of the horizontal sections of the T-shaped bolts are correspondingly inserted into the left connecting pipe of the, at the moment, the right side of the handheld part of the T-shaped bolt is positioned in the left positioning notch at the upper part of the left end of the left connecting pipe. According to the butt joint process, a plurality of bottom formworks can be conveniently and quickly butted into a whole, the connection strength of two adjacent bottom formworks is ensured, and the stability of workers after standing construction and concrete pouring on the bottom formworks is ensured.
And (3) pouring concrete on the upper surface of the bottom template, pouring the steel truss in the concrete, and forming a cast-in-situ floor bearing plate after solidification. The bottom template is used as a ceiling without being detached.
The utility model discloses owing to set up the reinforcing bar with the axial in the back timber is inside to pour mortar and concrete, improve the compressive strength of steel truss like this, can make the steel truss firmly be connected as an organic wholely through U type splice bar and die block board, need not set up steel pipe scaffold and shaped steel in the die block board below and support, also can guarantee the levelness and the intensity and the levelness of die block board.
The opening of the U-shaped connecting rib on the left side of the group of steel trusses faces to the left, the opening of the U-shaped connecting rib on the right side faces to the right, and therefore the connection reliability of the V-shaped horizontal section during hanging and drawing of the U-shaped connecting rib can be achieved.
Left side location breach and right location breach not only have the effect of the handheld portion that holds T type bolt, have moreover when two bottom forms butt joints, play the effect that the T type bolt of injecing does not rotate, does not axial displacement.
To sum up, the utility model relates to a rationally, the structure is solid reliable, and the die block board exempts from to support and exempts from to tear open, has reduced the construction process, has improved the efficiency of construction, also improves the compressive strength of building carrier plate, has stronger construction commonality, easily popularizes and applies on the market.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of two bottom forms when mated;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is an enlarged view at C in FIG. 3;
fig. 6 is a top view of the reinforcing bars and the supporting rods of the present invention.
Detailed Description
As shown in fig. 1-6, the bottom form of the supporting-free steel truss concrete floor deck structure of the present invention has a bottom form 1 made of stainless steel plate, the bottom form 1 is horizontally disposed, steel trusses are arranged on the bottom form 1 along the front-back horizontal direction, and the steel trusses are uniformly spaced in 2 or 3 groups above each bottom form 1 along the left-right direction; each group of steel trusses comprises a top beam 2, two groups of wave-shaped steel bars 3 and two bottom straight steel bars 4, the top beam 2 and the bottom straight steel bars 4 are horizontally arranged along the front-back direction, the tops of the two groups of wave-shaped steel bars 3 are respectively welded on the left side and the right side of the top beam 2, the lower parts of the two groups of wave-shaped steel bars 3 are respectively bent outwards to form a V-shaped horizontal section 5, the bottom straight steel bars 4 are arranged at the bending positions of the wave-shaped steel bars 3 and are welded with the wave-shaped steel bars 3, a plurality of U-shaped connecting bars 6 which are vertically arranged are welded on the upper surface of a bottom template 1, each U-shaped connecting bar 6 is connected with the V-shaped horizontal section 5, a plurality of left connecting pipes 7 are uniformly arranged on the left side of the upper surface of each bottom template 1 along the front-back direction at intervals, a plurality of right connecting pipes 8 are uniformly arranged on the, the quantity of left connecting pipe 7 and right connecting pipe 8 equals and controls the one-to-one, and the left end of left connecting pipe 7 flushes with the left side of die block board 1, and the right-hand member of right connecting pipe 8 flushes with the right side of die block board 1.
The opening of the left U-shaped connecting rib 6 of the steel truss faces to the left, the bottom of the left V-shaped horizontal section 5 is clamped in the left U-shaped connecting rib 6, the opening of the U-shaped connecting rib 6 on the right side of the steel truss faces to the right, and the bottom of the right V-shaped horizontal section 5 is clamped in the right U-shaped connecting rib 6.
The left end top of the left connecting pipe 7 is provided with a left positioning notch 13, and the left end top of the right connecting pipe 8 is provided with a right positioning notch 14.
The top beam 2 is before welding with two groups of wave reinforcing bars 3, stretch into in steel pipe 9 reinforcing bar 10 earlier, the outer end of the branch 11 of direction centering structure slides along steel pipe 9 inner wall, ensure that reinforcing bar 10 and steel pipe 9 keep the concentricity, then with the vertical setting of steel pipe 9, the open end of steel pipe 9 is up, it has mortar or concrete 12 to pour to the annular cavity that forms between steel pipe 9 and reinforcing bar 10 through the upper port of steel pipe 9, just so pour steel pipe 9 and reinforcing bar as an organic whole, the compressive strength of steel pipe 9 has been improved greatly. After mortar or concrete 12 in the steel pipe 9 is solidified, the top beam 2, the two groups of wave-shaped steel bars 3 and the two bottom straight steel bars 4 are welded to form the steel truss. Meanwhile, a left connecting pipe 7 and a right connecting pipe 8 are respectively welded on the left side and the right side of the upper surface of the bottom template 1, then a row of U-shaped connecting ribs 6 are welded in the order from left to right, the V-shaped horizontal section 5 on the left side of the bottom of the steel truss is hung in the row of U-shaped connecting ribs 6, then the U-shaped connecting ribs 6 are respectively sleeved on the V-shaped horizontal section 5 on the right side of the bottom of the steel truss correspondingly, and then the lower parts of the U-shaped connecting ribs 6 are correspondingly welded on the bottom template 1. According to the assembling process, one or two groups of steel trusses below are firmly connected with the corresponding U-shaped connecting ribs 6.
The assembly process is performed in a factory. After the assembled structure is transported to a construction site, the assembled structure is hoisted to a construction position by a tower crane, when two adjacent bottom formworks 1 are butted, a plurality of T-shaped bolts 15 (two short steel bars which are vertically welded can be adopted) are specially processed for positioning connection, the left bottom formwork 1 is supposed to be hoisted in place and fixed, the middle part of the T-shaped bolt 15 is held by hand, the left end of the horizontal section of the T-shaped bolt 15 is inserted into a right connecting pipe 8 on one bottom formwork 1 from right to left, the diameter of the horizontal section of the T-shaped bolt 15 is smaller than the inner diameters of the left connecting pipe 7 and the right connecting pipe 8 by 1-2mm, the holding part of the T-shaped bolt 15 moves to the left in a right positioning gap 14 at the upper part of the right end of the right connecting pipe 8, then one bottom formwork 1 on the right side is hoisted to the same height and moves to the left, the right end of the horizontal section, and stopping moving until the right side edge of the left bottom template 1 is butted with the left side edge of the right bottom template 1, and at the moment, the right side of the handheld part of the T-shaped bolt 15 is positioned in the left positioning notch 13 at the upper part of the left end of the left connecting pipe 7. According to the butt joint process, the plurality of bottom formworks 1 can be conveniently and quickly butted into a whole, the connection strength of the two adjacent bottom formworks 1 is ensured, and the stability of workers after standing construction and concrete pouring on the bottom formworks 1 is ensured.
Concrete is poured on the upper surface of the bottom template 1, the steel truss is also poured in the concrete, and a cast-in-place floor bearing plate is formed after solidification. The bottom form 1 is used as a ceiling without being removed.
The utility model discloses owing to set up reinforcing bar 10 at 2 inside coaxial orientations of back timber to pour mortar and concrete, improve steel truss's compressive strength like this, can make steel truss firmly be connected as an organic wholely with die block board 1 through U type splice bar 6, need not set up steel pipe 9 scaffold frame and shaped steel in die block board 1 below and support, also can guarantee die block board 1's levelness and intensity and levelness.
The opening of the U-shaped connecting rib 6 on the left side of the group of steel trusses faces to the left, the opening of the U-shaped connecting rib 6 on the right side faces to the right, and therefore the connection reliability of the V-shaped horizontal section 5 when the U-shaped connecting rib 6 is hung and pulled can be achieved.
The left positioning notch 13 and the right positioning notch 14 not only have the function of accommodating a handheld part of the T-shaped bolt 15, but also have the function of limiting the T-shaped bolt 15 not to rotate and not to move axially when the two bottom templates 1 are butted.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (4)
1. The bottom template is a support-free steel truss concrete floor support plate structure, the bottom template is made of stainless steel plates, the bottom template is horizontally arranged, the steel trusses are arranged on the bottom template along the front-back horizontal direction, and 2 groups or 3 groups of steel trusses are uniformly arranged above each bottom template along the left-right direction at intervals; every group steel truss all includes a back timber, two groups of wave reinforcing bars and two straight reinforcing bars in bottom, and the back timber all sets up along the fore-and-aft direction level with the straight reinforcing bar in bottom, and the top of two sets of wave reinforcing bars welds the side about the back timber respectively, and the lower part of two groups of wave reinforcing bars outwards bends respectively and forms V type horizontal segment, and the straight reinforcing bar setting in bottom is at the department of bending of wave reinforcing bar and with wave reinforcement welding, its characterized in that: the welding of die block board upper surface has the U type splice bar of the equal vertical setting of a plurality of, every U type splice bar all is connected with V type horizontal segment, the left side of every die block board upper surface is equipped with a plurality of left connecting pipe along the even interval of fore-and-aft direction, the right side of every die block board upper surface is equipped with the right connecting pipe of a plurality of along the even interval of fore-and-aft direction, the central line of left connecting pipe and right connecting pipe all sets up along controlling the direction level, the quantity of left connecting pipe and right connecting pipe equals and controls the one-to-one, the left end of left connecting pipe flushes with the left side limit of die block board, the right-hand member of right connecting pipe flushe.
2. The bottom form support-free steel truss concrete floor deck structure of claim 1, wherein: the opening of the left U type splice bar of steel truss faces left, and left V type horizontal segment bottom joint is in the inside of left U type splice bar, and the opening of the U type splice bar on steel truss right side faces right, and the V type horizontal segment bottom joint on right side is in the inside of the U type splice bar on right side.
3. The bottom form support-free steel truss concrete floor deck structure of claim 2, wherein: the back timber includes the steel pipe and the reinforcing bar that length equals, the one end of steel pipe sets up the baffle, reinforcing bar wears to establish in the steel pipe along the steel pipe central line, reinforcing bar outside is equipped with three group's direction centering structures along length direction at least, the direction centering structure includes three spinal branch poles that set up along the radial direction of steel pipe, three spinal branch poles evenly arrange along reinforcing bar's circumferencial direction, the inner welding of branch is on reinforcing bar, branch outer end and the contact of steel pipe inner wall, mortar or concrete have been pour in the annular cavity that forms between the steel pipe inside and the reinforcing bar outside.
4. The bottom form support-free steel truss concrete floor deck structure of any one of claims 1-3, wherein: the left positioning notch is formed in the top of the left end of the left connecting pipe, and the right positioning notch is formed in the top of the left end of the right connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020662511.0U CN212376113U (en) | 2020-04-27 | 2020-04-27 | Bottom template support-free steel truss concrete floor support plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020662511.0U CN212376113U (en) | 2020-04-27 | 2020-04-27 | Bottom template support-free steel truss concrete floor support plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212376113U true CN212376113U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020662511.0U Expired - Fee Related CN212376113U (en) | 2020-04-27 | 2020-04-27 | Bottom template support-free steel truss concrete floor support plate structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN212376113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006493A (en) * | 2021-03-02 | 2021-06-22 | 中国电建集团山东电力建设第一工程有限公司 | Distributed steel bar mounting tool for floor bearing plate |
-
2020
- 2020-04-27 CN CN202020662511.0U patent/CN212376113U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006493A (en) * | 2021-03-02 | 2021-06-22 | 中国电建集团山东电力建设第一工程有限公司 | Distributed steel bar mounting tool for floor bearing plate |
| CN113006493B (en) * | 2021-03-02 | 2023-02-28 | 中国电建集团山东电力建设第一工程有限公司 | Distributed steel bar mounting tool for floor bearing plate |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |