CN111535488A - Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor - Google Patents

Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor Download PDF

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Publication number
CN111535488A
CN111535488A CN202010531143.0A CN202010531143A CN111535488A CN 111535488 A CN111535488 A CN 111535488A CN 202010531143 A CN202010531143 A CN 202010531143A CN 111535488 A CN111535488 A CN 111535488A
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CN
China
Prior art keywords
steel bar
truss
steel
floor
prefabricated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010531143.0A
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Chinese (zh)
Inventor
张宏宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Dena new building materials Co.,Ltd.
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张宏宇
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Publication date
Application filed by 张宏宇 filed Critical 张宏宇
Priority to CN202010531143.0A priority Critical patent/CN111535488A/en
Publication of CN111535488A publication Critical patent/CN111535488A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

Abstract

The invention discloses an assembly type prefabricated steel bar truss disassembly-free floor bearing plate which comprises a prefabricated cement fiberboard component positioned at the bottom, a steel plate component arranged on the upper surface of the cement fiberboard component through a fastener, and a steel bar truss fixedly arranged above the steel plate component; the method is characterized in that: a plurality of steel bar supporting members are uniformly welded on the upper surface of the steel plate member along the length direction, prefabricated holes or grooves for placing transverse or longitudinal steel bars are formed in the steel bar supporting members, and the centers of the prefabricated holes or grooves are on the same straight line; lower reinforcing steel bars are placed in the prefabricated holes or the prefabricated grooves and are connected with reinforcing steel bar supporting members through welding; upper reinforcing steel bars are welded on the lower reinforcing steel bars at intervals, and a reinforcing steel bar truss is welded on the upper surface of the upper reinforcing steel bar or the lower reinforcing steel bar; the invention also relates to a truss floor cast in situ by utilizing the disassembly-free floor bearing plate. The invention has the advantages of simple structure, convenient processing, high construction efficiency, good rigidity and the like.

Description

Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to an assembly type prefabricated steel bar truss disassembly-free floor bearing plate and a cast-in-place support-free truss floor.
Background
At present, floor panels of buildings mainly have two forms, one is a precast slab, and the other is a cast-in-place concrete floor. The prefabricated slab floor slab is installed in the modes of ground prefabrication forming and field hoisting, and has the advantages of high construction speed and low cost. However, the existing precast slab floor slab is lack of effective connection with the wall body, and is easy to loosen and fall off when encountering natural disasters such as earthquakes and the like, thereby causing property loss and even casualties. In addition, after the assembly of the existing precast slab floor slabs is finished, certain gaps exist among the floor slabs, and ceiling cracks are generated due to improper treatment, so that the appearance is not only influenced, but also water leakage and other phenomena can be generated.
The cast-in-place concrete floor slab overcomes some defects of the precast slab floor slab, and can greatly improve the shock resistance of the building. However, the construction of the cast-in-place concrete floor requires a series of operations such as erecting a support frame on site, laying a formwork on the support frame, laying reinforcing steel bars in the formwork, and then pouring concrete. In the traditional floor construction engineering, the wood template is adopted for floor construction, and the defects of resource waste, large form removal loss, large quantity of floor support tools, high construction cost and the like exist. In order to overcome the defect of floor construction by using a wood template, the cast-in-place precast concrete composite slab is provided, but the existing cast-in-place precast concrete composite slab has the disadvantages of heavy weight, low factory processing speed, complex transportation and hoisting construction and high bearing requirement of a floor supporting tool.
In addition, the steel bar truss floor bearing plate of the cast-in-place concrete composite slab is formed by adopting a steel bar truss and a galvanized bottom template as main parts and connecting the steel bar truss and the galvanized bottom template together through resistance spot welding or a connector to form a welding type or assembly type steel bar truss floor bearing plate. In the construction process of the steel bar truss and the galvanized bottom template in the prefabricated residential building, the problems of the welded steel bar truss floor bearing plate exist: a) the galvanized bottom template is difficult to remove from the bottom of the floor slab; b) the roof decoration is affected due to the corrosion of the bottom feet of the steel bar truss; c) the footing of the steel bar truss generates sagging deformation when the galvanized template is removed, and the whitewash at the bottom of the floor slab is influenced; d) the labor intensity is high, and the labor cost is high; during the construction process of the steel bar truss and the galvanized bottom template in the assembled residential building, the assembled steel bar truss floor bearing plate has the following problems: a) the material cost is greatly improved by adopting a thicker galvanized steel template; b) the connecting piece for connecting the steel bar truss and the bottom template has low use efficiency; c) the reuse times of the galvanized template and the connecting piece are lower; d) the problems of more labor, high labor cost and high labor intensity exist.
Therefore, the invention provides a support-free or simply-supported assembly type prefabricated steel bar truss disassembly-free floor bearing plate which is simple in structure, convenient to process and capable of improving the construction efficiency and a cast-in-place support-free truss floor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a support-free or simply-supported prefabricated steel bar truss disassembly-free floor bearing plate which is simple in structure, convenient to process and capable of improving the construction efficiency and a cast-in-place support-free truss floor slab.
The invention is realized in this way, an assembly type prefabricated steel bar truss non-dismantling floor bearing plate comprises a prefabricated cement fiberboard component positioned at the bottom, a steel plate component arranged on the upper surface of the cement fiberboard component through a fastener, and a steel bar truss fixedly arranged above the steel plate component; the method is characterized in that: a plurality of steel bar supporting members are uniformly welded on the upper surface of the steel plate member along the length direction, prefabricated holes or grooves for placing transverse or longitudinal steel bars are formed in the steel bar supporting members, and the centers of the prefabricated holes or grooves are on the same straight line; lower reinforcing steel bars are placed in the prefabricated holes or the prefabricated grooves and are connected with reinforcing steel bar supporting members through welding; upper reinforcing steel bars are welded on the lower reinforcing steel bars at intervals, and a steel bar truss is welded on the upper surface of the upper reinforcing steel bar or the lower reinforcing steel bar.
According to the technical scheme, the steel bar supporting member is of a circular ring structure, and the bottom of the steel bar supporting member of the circular ring structure is welded to the upper surface of the steel plate member.
According to the technical scheme, the lower end of the steel bar supporting member of the circular ring structure is provided with the welding base, and the welding base is welded on the steel plate member.
In the above aspect, the welding base preferably has a cross section formed in a flat surface, a zigzag shape, or a T-shape.
According to the preferable technical scheme, the steel bar supporting member is of a T-shaped structure or an L-shaped structure, a prefabricated hole or groove is formed in a vertical main rib plate of the T-shaped structure or the L-shaped steel bar supporting member, and a lower horizontal flange plate of the T-shaped structure or the L-shaped steel bar supporting member is welded on the steel plate member.
According to the preferable technical scheme, the steel bar truss comprises an upper chord steel bar, a lower chord steel bar and a web rib welded between the upper chord steel bar and the lower chord steel bar, and the lower chord steel bar is welded on the upper steel bar or the lower steel bar.
According to the preferable technical scheme, the upper chord ribs are connected with the steel plate members through the lateral reinforcing ribs on two sides of the steel bar truss.
Preferably, the lateral reinforcing ribs are arranged oppositely or in a staggered manner.
Preferably, the steel bar truss is connected with the steel plate member through the L-shaped supporting piece.
The invention also discloses an assembled cast-in-place support-free truss floor slab, which comprises a floor bearing plate structural body and a concrete structural body; the floor support plate structure is characterized in that the floor support plate structure is formed by splicing a plurality of non-dismantling floor support plates according to any one of claims 1 to 9, each non-dismantling floor support plate is adjacent to a structural beam, a steel bar truss on the side of a structural wall is lapped on a steel bar framework of the structural beam, concrete is densely filled on the floor support plate structure, and a truss floor is formed after the concrete is solidified.
The invention has the advantages and positive effects that: the invention can be installed in factory prefabrication field; compared with the traditional wood formwork, the formwork removal construction is reduced, and the service life of the wood formwork is as long as that of a floor slab; compared with the traditional floor bottom die support, the disassembly-free floor composite slab has the advantages of high rigidity, good integrity, simple support tool or no support; compared with a concrete prefabricated laminated slab, the disassembly-free floor bearing plate has the advantages of light dead weight and high cast-in-place construction quality. Compared with the existing cast-in-place precast concrete composite slab, the cast-in-place precast concrete composite slab has the advantages of light dead weight, high factory processing speed, easiness in transportation and hoisting, low bearing requirement on a floor slab supporting tool, high cast-in-place construction quality and the like.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a view taken along line K of FIG. 1;
FIG. 4 is a schematic perspective view of the structure of example 1;
FIG. 5 is a schematic view of a connection structure of a cement fiberboard and a steel plate member;
FIG. 6 is a schematic view of a planar soldering mount;
FIG. 7 is a schematic structural view of a welding base shaped like a Chinese character 'ji';
FIG. 8 is a schematic view of a T "weld mount configuration;
FIG. 9 is a schematic structural view of a T-shaped reinforcing bar supporting member in embodiment 2;
FIG. 10 is a schematic structural view of example 3;
FIG. 11 is a schematic perspective view of the preferred embodiment 3;
figure 12 is a schematic view of a truss floor construction.
In the figure, 1, a cement fiberboard component; 2. a fastener; 3. a steel plate member; 3-1, lower reinforcing steel bars; 3-2, upper steel bars; 4. a steel bar truss; 4-1, winding ribs; 4-2, lower chord ribs; 4-3, abdominal muscle; 4-4, lateral reinforcing ribs; 5. a reinforcing bar support member; 5-1, prefabricating holes; 5-2, welding a base; 6. a truss floor; 6-1, concrete structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, an assembly type prefabricated steel bar truss disassembly-free floor support plate comprises a prefabricated cement fiberboard component 1 positioned at the bottom and a steel plate component 3 mounted on the upper surface of the cement fiberboard component through a fastener 2, wherein the fastener penetrates through the cement fiberboard to be connected by using a self-tapping screw during actual processing and production, and the cement fiberboard can also be replaced by other boards with good compatibility with concrete, such as a calcium silicate board, a disassembly-free lining board and the like); and a steel bar truss 4 fixedly installed above the steel plate member; the steel plate member plays a role in lifting and lowering so as to be conveniently used for connecting the cement fiber plate, and on the other hand, a welding foundation is provided for welding the steel bar truss, so that binding is omitted, and the connecting strength is improved; a plurality of steel bar supporting members 5 are uniformly welded on the upper surface of the steel plate member along the length direction, the steel bar supporting members are used for supporting steel bars on one hand, and a space is reserved between bottom steel bars of the steel bar supporting members and the upper surface of the cement fiberboard on the other hand, a protective layer for protecting the steel bars and the traveling frame is formed after concrete is poured, prefabricated holes 5-1 for placing transverse or longitudinal steel bars are formed in the steel bar supporting members, and the centers of the prefabricated holes are on the same straight line; lower steel bars 3-1 are placed in the prefabricated holes, and the lower steel bars are connected with the steel bar supporting members through welding; upper steel bars 3-2 are welded on the lower steel bars at intervals, and a steel bar truss 4 is welded on the upper surface of the upper steel bars or the lower steel bars. The prefabricated hole can also be of a prefabricated groove structure, namely a prefabricated groove with an opening at the upper end, so that the lower steel bars are directly placed in the prefabricated groove, and then the periphery of the prefabricated groove is welded with the lower steel bars. The concrete fiberboard forms a structure, the steel bar truss is connected into a whole through the steel plate component, the steel bar supporting component, the lower steel bar and the upper steel bar, the concrete fiberboard is transported to a site to be integrally hoisted, the steel bar truss is in lap joint with the progress of structural bodies such as beams, columns and shear walls of a building according to construction requirements, the steel bar truss plays a main bearing role before pouring, the concrete fiberboard replaces a traditional wooden template, and a formwork can be supported in a simple supporting or supporting-free mode; after the pouring is finished, the cement fiberboard and the concrete are connected into a whole, so that the construction efficiency is greatly improved, and the cement fiberboard is high in rigidity and good in integrity.
Preferably in the above structure, the reinforcing steel bar supporting member 5 is of a circular ring structure, and the bottom of the reinforcing steel bar supporting member of the circular ring structure is welded on the upper surface of the steel plate member.
Preferably, in the above structure, the lower end of the steel bar support member of the circular ring structure is provided with a welding base 5-2, and the welding base is welded on the steel plate member.
In the above configuration, the welding base preferably has a flat surface, a zigzag shape, or a T-shape in cross section.
Example 2; preferably, in the above structure, the reinforcing steel bar support member is of a T-shaped structure or an L-shaped structure, a prefabricated hole or groove is formed in a vertical main rib plate of the T-shaped structure or the L-shaped reinforcing steel bar support member, and a lower horizontal flange plate of the T-shaped structure or the L-shaped reinforcing steel bar support member is welded to the steel plate member.
In embodiment 3, in the above structure, preferably, the steel bar truss 4 includes an upper chord 4-1, a lower chord 4-2, and a web member 4-3 welded between the upper chord and the lower chord, and the lower chord is connected to the upper reinforcement or the lower reinforcement by welding. The steel bar truss can ensure the connection strength and reduce the weight, but is not limited to the connection strength and the weight, and other steel bar trusses with three chord bars can also be adopted.
Preferably, the upper chord reinforcements on two sides of the steel bar truss are connected with the steel plate component 3 through the lateral reinforcing ribs 4-4, so that the connection firmness of the steel bar truss relative to the cement fiberboard is improved, and the hanging force of the cement fiberboard is improved after the pouring is finished. Preferably, in the above structure, the lateral reinforcing ribs are arranged oppositely or alternately, and can also be arranged oppositely.
In example 4, the steel bar truss is connected to the steel plate member by the L-shaped support member, and a plurality of steel bar trusses are arranged at intervals according to the length of the truss.
The invention also discloses a cast-in-place support-free truss floor assembled on site by utilizing the disassembly-free floor bearing plate, which comprises a floor bearing plate structural body and a concrete structural body 6-1; the floor support plate structure is formed by splicing a plurality of non-dismantling floor support plates in any one of the embodiments, each non-dismantling floor support plate is abutted to a steel bar truss at the side of the structural beam and is lapped on a steel bar framework of the structural beam, and an upper structural bar 6-2 is welded on the upper surface of the floor support plate structure; the concrete is densely filled in the whole steel structure formed by the floor bearing plate structural body and the upper-layer structural ribs, and the truss floor 6 is formed after the concrete is solidified. The truss floor slab has the advantages of high rigidity, good integrity, high construction efficiency and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An assembly type prefabricated steel bar truss disassembly-free floor bearing plate comprises a prefabricated cement fiberboard component positioned at the bottom, a steel plate component arranged on the upper surface of the cement fiberboard component through a fastener, and a steel bar truss fixedly arranged above the steel plate component; the method is characterized in that: a plurality of steel bar supporting members are uniformly welded on the upper surface of the steel plate member along the length direction, prefabricated holes or grooves for placing transverse or longitudinal steel bars are formed in the steel bar supporting members, and the centers of the prefabricated holes or grooves are on the same straight line; lower reinforcing steel bars are placed in the prefabricated holes or the prefabricated grooves and are connected with reinforcing steel bar supporting members through welding; upper reinforcing steel bars are welded on the lower reinforcing steel bars at intervals, and a steel bar truss is welded on the upper surface of the upper reinforcing steel bar or the lower reinforcing steel bar.
2. The assembly type precast steel bar truss disassembly-free floor deck according to claim 1, which is characterized in that: the steel bar supporting member adopts a circular ring structure, and the bottom of the steel bar supporting member of the circular ring structure is welded on the upper surface of the steel plate member.
3. The assembly type precast steel bar truss disassembly-free floor deck according to claim 2, which is characterized in that: the lower extreme of the steel bar support component of ring structure is equipped with the welding base, the welding base welding is in on the steel sheet component.
4. The assembly type precast steel bar truss disassembly-free floor deck according to claim 3, wherein: the cross section of the welding base is formed into a plane type, a zigzag type or a T type.
5. The assembly type precast steel bar truss disassembly-free floor deck according to claim 1, which is characterized in that: the steel bar supporting component is of a T-shaped structure or an L-shaped structure, prefabricated holes or prefabricated grooves are formed in a vertical main rib plate of the T-shaped structure or the L-shaped steel bar supporting component, and a horizontal flange plate at the lower portion of the T-shaped structure or the L-shaped steel bar supporting component is welded on the steel plate component.
6. The assembly type precast steel bar truss disassembly-free floor deck according to claim 1, which is characterized in that: the steel plate component is flat plate type, C type or U type; the steel bar truss comprises an upper chord steel bar, a lower chord steel bar and a web steel bar welded between the upper chord steel bar and the lower chord steel bar, and the lower chord steel bar is welded on the upper steel bar or the lower steel bar.
7. The assembly type precast steel bar truss disassembly-free floor deck according to claim 6, which is characterized in that: and the upper chord ribs on two sides of the steel bar truss are connected with the steel plate members through lateral reinforcing ribs.
8. The fabricated precast steel bar truss disassembly-free floor deck according to claim 7, wherein: the lateral reinforcing ribs are arranged oppositely or in a staggered mode.
9. The assembly type precast steel bar truss disassembly-free floor deck according to claim 1, which is characterized in that: the steel bar truss is connected with the steel plate component through the L-shaped supporting piece.
10. An assembled cast-in-place support-free truss floor comprises a floor bearing plate structural body and a concrete structural body; the floor support plate structure is characterized in that the floor support plate structure is formed by splicing a plurality of non-dismantling floor support plates according to any one of claims 1 to 9, each non-dismantling floor support plate is adjacent to a structural beam, a steel bar truss on the side of a structural wall is lapped on a steel bar framework of the structural beam, concrete is densely filled on the floor support plate structure, and a truss floor is formed after the concrete is solidified.
CN202010531143.0A 2020-06-11 2020-06-11 Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor Pending CN111535488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010531143.0A CN111535488A (en) 2020-06-11 2020-06-11 Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010531143.0A CN111535488A (en) 2020-06-11 2020-06-11 Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor

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CN111535488A true CN111535488A (en) 2020-08-14

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CN202010531143.0A Pending CN111535488A (en) 2020-06-11 2020-06-11 Prefabricated steel bar truss of assembled exempts from to tear open building carrier plate and cast-in-place and exempt from to strut truss floor

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530079A (en) * 2021-07-12 2021-10-22 台州普立德建筑科技有限公司 Prefabricated light air conditioner board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530079A (en) * 2021-07-12 2021-10-22 台州普立德建筑科技有限公司 Prefabricated light air conditioner board

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Effective date of registration: 20210819

Address after: 301508 area M1, No. 5-3, Jufeng Yipin, Ninghe Bay, Ninghe modern industrial park, Ninghe District, Tianjin

Applicant after: Tianjin Dena new building materials Co.,Ltd.

Address before: 300402 No.110, gate 25, Sihua building, Mazhuang street, Hebei District, Tianjin

Applicant before: Zhang Hongyu

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