CN111424870A - Steel bar truss floor support plate with support-free recyclable bottom die and machining method - Google Patents
Steel bar truss floor support plate with support-free recyclable bottom die and machining method Download PDFInfo
- Publication number
- CN111424870A CN111424870A CN202010337016.7A CN202010337016A CN111424870A CN 111424870 A CN111424870 A CN 111424870A CN 202010337016 A CN202010337016 A CN 202010337016A CN 111424870 A CN111424870 A CN 111424870A
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- Prior art keywords
- steel bar
- connecting plate
- plate
- bar truss
- bottom die
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 45
- 239000010959 steel Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 7
- 238000003754 machining Methods 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 238000003672 processing method Methods 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000002023 wood Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 241001235216 Larix decidua Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/38—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for plane ceilings of concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a steel bar truss floor bearing plate with a support-free recyclable bottom die and a processing method, the floor bearing plate comprises a bottom die plate, connecting plates, steel bar trusses and connecting bolts, the connecting plates are distributed on the bottom die plate at intervals, the connecting plates are of a concrete structure, embedded nuts are arranged at the bottoms of the connecting plates, the connecting bolts penetrate through the bottom die plate and are connected with the connecting plates through the embedded nuts, the steel bar trusses are bound on the connecting plates, the connecting plates of the concrete structure are connected with the bottom die plate through the bolts during the floor bearing plate processing, and the bottom die plate is convenient to disassemble after the floor bearing plate is poured; the connecting plate adopts the concrete preparation, and cast in situ, simple manufacture, the material of connecting plate is the same with the material of building carrier plate moreover, can not influence the structural performance of building carrier plate.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a steel bar truss floor support plate with a support-free recyclable bottom die and a processing method.
Background
The existing steel bar truss floor support plate spot-welds a steel bar truss and a galvanized profiled steel sheet bottom die, and although the existing steel bar truss floor support plate has the technical advantages of assembly type, the work load of a cast-in-place formwork is large, and the profiled steel sheet bottom die is difficult to remove after concrete is cured and formed, so that great difficulty is caused to construction. At present, some detachable steel bar truss floor bearing plates are provided, for example, the invention patent with the application number of 201711436435.0 discloses a detachable truss floor bearing plate connector and a truss floor bearing plate structure, for example, the invention patent with the application number of 201811335304.8 discloses a steel bar truss floor bearing plate, the two patents both manufacture a steel bar truss on a bottom template through a specially-made connector, so that the bottom template can be detached, but the two connectors have complicated structures, need to be customized in a production workshop, and have high processing cost. And the material of connecting piece adopts plastics or timber, and the connecting piece is stayed the building carrier plate after building carrier plate pours inside can not take out, and plastics and timber are very big with the material attribute difference of the inside reinforcing bar of building carrier plate and concrete, can influence the structural performance of building carrier plate self, especially when using in a large number, can reduce the structural performance of building carrier plate.
Disclosure of Invention
In order to overcome the problems, the invention provides a steel bar truss floor bearing plate with a support-free recyclable bottom die and a processing method.
The technical scheme of the invention is as follows: the utility model provides a steel bar truss building carrier plate with exempt from to support circulated use die block, includes die block board, connecting plate, steel bar truss and connecting bolt, the connecting plate interval distribution on the die block board, the bottom of connecting plate is equipped with embedded nut, connecting bolt passes the die block board and passes through embedded nut with the connecting plate to be connected, the steel bar truss ligature is on the connecting plate, the connecting plate is concrete structure.
Preferably, both ends of the connecting plate are flush with the edge of the bottom template.
Preferably, the top of connecting plate is equipped with the draw-in groove of two at least equipartitions, the downward projection that is equipped with interval distribution of connecting plate is the protection groove of indent between two lugs, embedded nut is located the lug.
Preferably, the steel bar truss comprises an upper chord rib and two lower chord ribs, the upper chord rib and the lower chord ribs are arranged in a triangular mode, the upper chord rib is located in the clamping groove, the lower chord ribs are located in the protection groove, and the upper chord rib and the lower chord ribs are welded together through lap joint ribs.
Preferably, the lower surface of the bump is tightly attached to the upper surface of the bottom template.
Preferably, a plastic diaphragm is arranged between the bump and the bottom template.
The processing method of the steel bar truss floor bearing plate comprises the following steps:
1) pouring a connecting plate, manufacturing a connecting plate pouring mold according to the size and the shape of the floor bearing plate, arranging supporting steel bars in the connecting plate mold, fixing reserved nuts, and then pouring and maintaining;
2) mounting a connecting plate, placing the well-maintained connecting plate on the bottom template, and connecting the connecting plate with an embedded nut in the connecting plate through a connecting bolt penetrating through the bottom template;
3) fixing a steel bar truss, enabling the lower chord rib to penetrate through a protection groove below the connecting plate, placing the upper chord rib into a clamping groove above the connecting plate, and welding the upper chord rib and the two lower chord ribs through lap ribs to enable the upper chord rib and the lower chord ribs to be arranged in a triangular shape and tightly clamp the connecting plate;
4) and pouring the floor bearing plate, installing a side template on the basis of the bottom template after the steel bar truss is fixed, and then pouring and maintaining.
Further, in step 2), a plastic membrane is disposed between the web and the bottom form.
Further, in the step 4), when the floor support plate is poured, the concrete grout is poured to the height of the protection groove to ensure that the protection groove is filled with the concrete grout, and then the floor support plate is continuously poured.
The invention has the beneficial effects that:
according to the invention, the connecting plate of the concrete structure is connected with the bottom template through the bolt, and the bottom template is convenient to disassemble after the floor bearing plate is poured; the connecting plate adopts the concrete preparation, and cast in situ, simple manufacture, the material of connecting plate is the same with the material of building carrier plate moreover, can not influence the structural performance of building carrier plate.
The floor bearing plate is provided with the clamping groove and the protection groove, so that the truss can be conveniently supported and fixed, and the protection groove can be used for reserving the thickness of the protection layer for the lower chord rib.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the connection plate;
in the figure: 1. the steel bar truss comprises a bottom template, 2 parts of connecting plates, 2-1 parts of clamping grooves, 2-2 parts of protective grooves, 2-3 parts of bumps, 2-4 parts of embedded nuts, 3 parts of steel bar trusses, 3-1 parts of upper chord ribs, 3-2 parts of lower chord ribs, 3-3 parts of lap joint ribs and 4 parts of connecting bolts.
Detailed Description
Detailed description of the invention with reference to fig. 1-3:
the technical scheme of the invention is as follows:
a steel bar truss floor bearing plate with a detachable bottom die is shown in figures 1-3 and comprises a bottom die plate 1, connecting plates 2, steel bar trusses 3 and connecting bolts 4, wherein the connecting plates 2 are distributed on the bottom die plate 1 at intervals, embedded nuts 2-4 are arranged at the bottoms of the connecting plates 2, the connecting bolts 4 penetrate through the bottom die plate 1 and are connected with the connecting plates 2 through the embedded nuts 2-4, the steel bar trusses 3 are bound on the connecting plates 2, the connecting plates 2 are of a concrete structure, two ends of each connecting plate 2 are flush with the edge of the bottom die plate 1, at least two clamping grooves 2-1 are uniformly distributed above the connecting plates 2, lugs 2-3 distributed at intervals are distributed under the connecting plates 2, a concave protective groove 2-2 is arranged between the two lugs 2-3, the embedded nuts 2-4 are located in the lugs 2-3, the lower surfaces of the lugs 2-3 are tightly attached to the, and a plastic diaphragm is arranged between the bump 2-3 and the bottom template 1, the steel bar truss 3 comprises an upper chord rib 3-1 and two lower chord ribs 3-2, the upper chord rib 3-1 and the lower chord ribs 3-2 are arranged in a triangle, the upper chord rib 3-1 is positioned in the clamping groove 2-1, the lower chord rib 3-2 is positioned in the protective groove 2-2, and the upper chord rib 3-1 and the lower chord ribs 3-2 are welded together by using lap joint ribs 3-3.
The processing method of the floor bearing plate comprises the following steps:
1) pouring a connecting plate 2, manufacturing a connecting plate 2 pouring mold according to the size and the shape of the floor bearing plate, arranging supporting steel bars in the connecting plate 2 mold, fixing reserved nuts, and then pouring and maintaining;
2) mounting a connecting plate 2, placing the well-maintained connecting plate 2 on a bottom template 1, arranging a plastic diaphragm between the connecting plate 2 and the bottom template 1, and connecting the plastic diaphragm with embedded nuts 2-4 in the connecting plate 2 by penetrating through the bottom template 1 through connecting bolts 4;
3) fixing a steel bar truss 3, enabling a lower chord rib 3-2 to penetrate through a protective groove 2-2 below a connecting plate 2, placing an upper chord rib 3-1 into a clamping groove 2-1 above the connecting plate 2, and welding the upper chord rib 3-1 and two lower chord ribs 3-2 through lap joint ribs 3-3 to enable the upper chord rib 3-1 and the lower chord ribs 3-2 to be arranged in a triangular shape and tightly clamp the connecting plate 2;
4) and pouring the floor bearing plate, installing the side formwork on the basis of the bottom formwork 1 after the steel bar truss 3 is fixed, then pouring and maintaining, pouring the floor bearing plate, pouring concrete slurry to the height of the protective groove 2-2 to ensure that the protective groove 2-2 is filled with the concrete slurry, and then continuously pouring.
Some current building carrier plates adopt the connection structure that plastics or timber were made to connect building carrier plate and steel bar truss, and the connection structure that plastics or timber were made can exert an influence to the structure of building carrier plate.
We compare the elastic modulus of concrete with wood and plastic, respectively, as follows:
concrete elastic modulus: taking the common C30 concrete as an example, the elastic modulus of the concrete is 30000 MPa;
elastic modulus of wood: taking common larch as an example, the elastic modulus of wood is 10000MPa, which is about 1/3 of the elastic modulus of concrete;
elastic modulus of plastic: the elastic modulus of plastics is much lower, typically not more than 2000MPa, about 1/15 which is the elastic modulus of concrete.
The formula for calculating the deflection of the simply supported beam under the action of uniformly distributed load is as follows:
wherein q is the uniform load concentration, l is the span, E is the elastic modulus, I is the bending moment of inertia, EI is the bending stiffness of the beam, and b and h are the width and height of the beam respectively.
Therefore, if wood is used instead of concrete, the deformation of wood is about three times that of concrete under the same floor load, which is very disadvantageous for the structural design; on the contrary, if the wood and the concrete floor are made to have the same deflection, the thickness of the wood is about 1.44 times of the thickness of the concrete, which will affect the building clearance and is very disadvantageous to the building design.
If plastics are used to replace concrete, the deformation of plastics is about 15 times that of concrete under the same floor load, which is very disadvantageous for structural design; on the contrary, if the deflection of the wood and the concrete floor is the same, the thickness of the wood is about 2.47 times of the thickness of the concrete, which will also affect the building clearance, and is very unfavorable for the building design.
According to the invention, the connecting plate 2 of a concrete structure is connected with the bottom template 1 through the bolt, and the bottom template 1 is convenient to disassemble after the floor bearing plate is poured; the connecting plate 2 is made of concrete, the concrete is poured in place and is easy to manufacture, the material of the connecting plate 2 is the same as that of the floor bearing plate, the structural performance of the floor bearing plate cannot be affected, the floor bearing plate is provided with the clamping grooves 2-1 and the protection grooves 2-2, a truss can be conveniently supported and fixed, and the protection grooves 2-2 can reserve the thickness of the protection layer for the lower chord ribs 3-2.
Claims (9)
1. The utility model provides a steel bar truss building carrier plate with exempt from to support circulated use die block which characterized in that: the connecting plates are distributed on the bottom template at intervals, the connecting plates are of a concrete structure, embedded nuts are arranged at the bottoms of the connecting plates, the connecting bolts penetrate through the bottom template to be connected with the connecting plates through the embedded nuts, and the steel bar trusses are bound on the connecting plates.
2. The steel bar truss floor deck with the support-free recyclable bottom die according to claim 1, wherein: and the two ends of the connecting plate are flush with the edge of the bottom template.
3. The steel bar truss floor deck with the support-free recyclable bottom die according to claim 2, wherein: the top of connecting plate is equipped with the draw-in groove of two at least equipartitions, the lower of connecting plate is equipped with interval distribution's lug, is the protection groove of indent between two lugs, embedded nut is located the lug.
4. The steel bar truss floor deck with the support-free recyclable bottom die as claimed in claim 3, wherein: the steel bar truss comprises an upper chord rib and two lower chord ribs, the upper chord rib and the lower chord ribs are arranged in a triangular mode, the upper chord rib is located in the clamping groove, the lower chord ribs are located in the protecting groove, and the upper chord rib and the lower chord ribs are welded together through lap joint ribs.
5. The steel bar truss floor deck with the support-free recyclable bottom die as claimed in claim 4, wherein: the lower surface of the lug is tightly attached to the upper surface of the bottom template.
6. The steel bar truss floor deck with the support-free recyclable bottom die as claimed in claim 5, wherein: and a plastic diaphragm is arranged between the convex block and the bottom template.
7. The method for processing the steel bar truss floor deck as claimed in claim 6, wherein the method comprises the following steps: the method comprises the following steps:
1) pouring a connecting plate, manufacturing a connecting plate pouring mold according to the size and the shape of the floor bearing plate, arranging supporting steel bars in the connecting plate mold, fixing reserved nuts, and then pouring and maintaining;
2) mounting a connecting plate, placing the well-maintained connecting plate on the bottom template, and connecting the connecting plate with an embedded nut in the connecting plate through a connecting bolt penetrating through the bottom template;
3) fixing a steel bar truss, enabling the lower chord rib to penetrate through a protection groove below the connecting plate, placing the upper chord rib into a clamping groove above the connecting plate, and welding the upper chord rib and the two lower chord ribs through lap ribs to enable the upper chord rib and the lower chord ribs to be arranged in a triangular shape and tightly clamp the connecting plate;
4) and pouring the floor bearing plate, installing a side template on the basis of the bottom template after the steel bar truss is fixed, and then pouring and maintaining.
8. The process of claim 7, wherein: in step 2), a plastic membrane is arranged between the connecting plate and the bottom template.
9. The process of claim 7, wherein: in the step 4), when the floor support plate is poured, the concrete slurry is poured to the height of the protection groove, the protection groove is full of the concrete slurry, and then the pouring is continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010337016.7A CN111424870A (en) | 2020-04-26 | 2020-04-26 | Steel bar truss floor support plate with support-free recyclable bottom die and machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010337016.7A CN111424870A (en) | 2020-04-26 | 2020-04-26 | Steel bar truss floor support plate with support-free recyclable bottom die and machining method |
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| Publication Number | Publication Date |
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| CN111424870A true CN111424870A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010337016.7A Pending CN111424870A (en) | 2020-04-26 | 2020-04-26 | Steel bar truss floor support plate with support-free recyclable bottom die and machining method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089192A (en) * | 2015-06-24 | 2015-11-25 | 浙江东南网架股份有限公司 | Dismountable bottom formwork steel bar truss floor support plate and assembling method of dismountable bottom formwork steel bar truss floor support plate |
| CN105317145A (en) * | 2014-07-30 | 2016-02-10 | 多维联合集团有限公司 | Detachable bottom formwork type steel bar truss deck |
| KR20170011230A (en) * | 2015-07-22 | 2017-02-02 | 강용욱 | Support fixture for truss girders installation |
| CN207194268U (en) * | 2017-08-29 | 2018-04-06 | 青岛理工大学 | The repeatable steel bar truss floor support plate utilized of bed die |
| CN208396106U (en) * | 2018-05-11 | 2019-01-18 | 宝胜系统集成科技股份有限公司 | Detachable bed die steel bar truss floor support plate |
| CN109339324A (en) * | 2018-11-29 | 2019-02-15 | 杭州铁木辛柯建筑结构设计事务所有限公司 | Assembling type flat steel bar truss floor support plate |
| JP2019152058A (en) * | 2018-03-06 | 2019-09-12 | センクシア株式会社 | Deck plate with rebar truss and floor slab structure |
| CN212478235U (en) * | 2020-04-26 | 2021-02-05 | 河南省金华夏建工集团股份有限公司 | Steel bar truss floor support plate with support-free recyclable bottom die |
-
2020
- 2020-04-26 CN CN202010337016.7A patent/CN111424870A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317145A (en) * | 2014-07-30 | 2016-02-10 | 多维联合集团有限公司 | Detachable bottom formwork type steel bar truss deck |
| CN105089192A (en) * | 2015-06-24 | 2015-11-25 | 浙江东南网架股份有限公司 | Dismountable bottom formwork steel bar truss floor support plate and assembling method of dismountable bottom formwork steel bar truss floor support plate |
| KR20170011230A (en) * | 2015-07-22 | 2017-02-02 | 강용욱 | Support fixture for truss girders installation |
| CN207194268U (en) * | 2017-08-29 | 2018-04-06 | 青岛理工大学 | The repeatable steel bar truss floor support plate utilized of bed die |
| JP2019152058A (en) * | 2018-03-06 | 2019-09-12 | センクシア株式会社 | Deck plate with rebar truss and floor slab structure |
| CN208396106U (en) * | 2018-05-11 | 2019-01-18 | 宝胜系统集成科技股份有限公司 | Detachable bed die steel bar truss floor support plate |
| CN109339324A (en) * | 2018-11-29 | 2019-02-15 | 杭州铁木辛柯建筑结构设计事务所有限公司 | Assembling type flat steel bar truss floor support plate |
| CN212478235U (en) * | 2020-04-26 | 2021-02-05 | 河南省金华夏建工集团股份有限公司 | Steel bar truss floor support plate with support-free recyclable bottom die |
Non-Patent Citations (1)
| Title |
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