CN217782522U - Prefabricated assembled heat preservation sound insulation composite floor - Google Patents

Abstract

The utility model relates to a prefabricated assembled heat preservation sound insulation composite floor, include: the utility model discloses a web member reinforcing bar is welded on the side wall that the upper chord rib and the lower chord rib are the same or different through S-shaped welding, a plane structure truss structure can be formed, the plane truss structure not only has small steel amount and low manufacturing cost, but also has stable structure and is not easy to deform; bending the corners of the web member steel bars extending out of the lower chord bars to form bending legs, and welding the bending legs on the composite bottom plate, so that the spot welding quantity can be greatly reduced on the premise of not influencing the structural strength of the floor slab, and the manufacturing time can be shortened.

Description

Prefabricated assembled heat preservation sound insulation composite floor

Technical Field

The utility model relates to a building element technical field, in particular to prefabricated assembled heat preservation sound insulation composite floor.

Background

The steel bar is used as an upper chord, a lower chord and a web member, a truss formed by connecting the steel bar truss through resistance spot welding is called a steel bar truss, and the steel bar truss and a bottom plate are connected into a whole through resistance spot welding to form a combined bearing plate which is called a steel bar truss floor bearing plate.

Steel bar truss adopts triangle-shaped truss structure or quadrangle structure truss structure mostly in traditional steel bar truss building carrier plate, though can improve the structural strength of building carrier plate, nevertheless with the steel volume too big, when being connected with the bottom plate, generally adopt the form of full weld moreover, seriously extravagant manual work and material.

Therefore, how to design a prefabricated assembly type heat-insulation and sound-insulation composite floor slab is a problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prefabricated assembled heat preservation sound insulation composite floor, solve the technical problem of the extravagant man-hour of the big and full weld of steel volume, material of current steel bar truss floor.

The utility model provides an above-mentioned technical problem's technical scheme as follows, a prefabricated assembled heat preservation sound insulation composite floor, include: a composite bottom plate and a plurality of steel bar trusses which are parallel and welded on the composite bottom plate at intervals,

each steel bar truss comprises an upper chord rib, a lower chord rib and web member steel bars, and the upper chord rib and the lower chord rib are arranged in parallel up and down; the web member reinforcing bar is along the length direction of last chord muscle with the welding of chord down is S type last chord muscle with on the same or inequality lateral wall of chord down muscle, the web member reinforcing bar is close to the corner of chord down muscle all extends to the below of chord down muscle, corresponds chord down muscle below the web member reinforcing bar department of buckling to the both sides of chord down muscle form the bending foot, and a plurality of the bending foot all welds on the composite bottom plate.

The utility model has the advantages that: the web member steel bars are welded on the same side wall of the upper chord steel bar and the lower chord steel bar in an S shape, so that a truss structure with a plane structure can be formed, and the plane truss structure has the advantages of small steel amount, low manufacturing cost, stable structure and difficulty in deformation; bending the corners of the web member steel bars extending out of the lower chord bars to form bending legs, and welding the bending legs on the composite bottom plate, so that the spot welding quantity can be greatly reduced on the premise of not influencing the structural strength of the floor slab, and the manufacturing time can be shortened.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, two adjacent bending feet on the web member steel bar are respectively bent towards two different sides of the lower chord rib.

The composite bottom plate has the further beneficial effects that the two adjacent bending feet on the web member steel bar are bent towards the two different sides of the lower chord bar respectively, and the plurality of bending feet are welded on the composite bottom plate, so that the connection strength between the steel bar truss and the composite bottom plate can be improved.

Further, the composite bottom plate comprises a steel plate, a heat insulation plate, a cement plate and a plurality of self-tapping screws, wherein the steel plate, the heat insulation plate and the cement plate are sequentially arranged from top to bottom in an aligned mode; the plurality of self-tapping screws are sequentially fixedly penetrated on the cement plate, the heat insulation plate and the steel plate; and the bent legs are welded on the steel plate.

The composite bottom plate has the further beneficial effect that the heat insulation effect of the floor support plate can be improved by additionally arranging the heat insulation plate in the middle of the composite bottom plate.

The steel plate is characterized by further comprising a plurality of micro ribs, wherein the micro ribs are all of long-strip structures and are fixed on the steel plate corresponding to the lower parts of the bending legs; and a plurality of bent feet are welded on the micro-ribs.

Furthermore, the cross sections of the micro ribs are all triangular.

The steel plate has the further beneficial effects that the plurality of micro ribs can improve the structural strength of the steel plate on one hand, and can facilitate the welding of a plurality of bent legs on the other hand.

Further, the steel sheet is a galvanized steel sheet; the cement board is a fiber cement board.

And further, the steel plate structure further comprises a sound insulation coating, wherein the sound insulation coating is sprayed on the surface of the steel plate close to the steel bar truss.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of a prefabricated heat-insulation sound-insulation composite floor slab with an angle 1;

FIG. 2 is a schematic view of a three-dimensional structure of an angle 2 of a prefabricated assembly type heat-insulation sound-insulation composite floor slab of the present invention;

FIG. 3 is an exploded view of the prefabricated heat-insulating sound-insulating composite floor slab of the present invention;

FIG. 4 is a schematic structural view of a type 1 structure of a prefabricated assembly type heat-insulation sound-insulation composite floor slab, wherein web-bar steel bars are arranged on the side walls of an upper chord rib and a lower chord rib which are different;

fig. 5 is the utility model relates to a prefabricated assembled heat preservation sound insulation composite floor middle web pole reinforcing bar is installed on the different lateral wall of last chord muscle and last chord muscle type 2 schematic structure.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the composite bottom plate comprises a composite bottom plate, 11, steel plates, 12, an insulation plate, 13, a cement plate, 14, micro ribs, 2, a steel bar truss, 21, upper chord ribs, 22, lower chord ribs, 23, web member steel bars, 231 and bending legs.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, a prefabricated assembly type heat-insulation sound-insulation composite floor slab includes: a composite bottom plate 1 and a plurality of steel bar trusses 2 which are parallel and welded on the composite bottom plate 1 at intervals,

each steel bar truss 2 comprises an upper chord bar 21, a lower chord bar 22 and web member steel bars 23, and the upper chord bar 21 and the lower chord bar 22 are arranged in parallel up and down; the web member reinforcing steel bars 23 are welded on the same or different side walls of the upper chord rib 21 and the lower chord rib 22 along the length direction of the upper chord rib 21 and the lower chord rib 22 in an S shape, corners of the web member reinforcing steel bars 23 close to the lower chord rib 22 extend to the lower part of the lower chord rib 22, bending parts of the web member reinforcing steel bars 23 corresponding to the lower part of the lower chord rib 22 bend towards the two sides of the lower chord rib 22 to form bending feet 231, and the bending feet 231 are welded on the composite bottom plate 1.

In some embodiments, two adjacent bending legs 231 of the web member reinforcing bars 23 may be bent toward different sides of the lower chord 22.

In some embodiments, the composite bottom plate 1 may include a steel plate 11, an insulation plate 12, a cement plate 13, and a plurality of tapping screws, wherein the steel plate 11, the insulation plate 12, and the cement plate 13 are sequentially aligned from top to bottom; a plurality of tapping screws are sequentially fixedly penetrated on the cement plate 13, the heat insulation plate 12 and the steel plate 11; the plurality of bent legs 231 are welded to the steel plate 11.

In some embodiments, a plurality of micro ribs 14 may be further included, and the plurality of micro ribs 14 are all long structures and are fixed on the steel plate 11 corresponding to the lower portions of the plurality of bending legs 231; a plurality of bent legs 231 are welded to the micro-ribs 14.

In some embodiments, the plurality of micro-ribs 14 may each have a triangular cross-section.

In some embodiments, the steel sheet 11 may be a galvanized steel sheet; the cement board 13 may be a fiber cement board.

In some embodiments, an acoustic coating may be further included, and the acoustic coating is sprayed on the surface of the steel plate 11 adjacent to the steel bar truss 2.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The utility model provides a prefabricated assembled heat preservation sound insulation composite floor, its characterized in that includes: a composite bottom plate (1) and a plurality of steel bar trusses (2) which are parallel and welded on the composite bottom plate (1) at intervals,

each steel bar truss (2) comprises an upper chord rib (21), a lower chord rib (22) and a web member steel bar (23), and the upper chord rib (21) and the lower chord rib (22) are arranged in parallel up and down; the length direction of web member reinforcing bar (23) edge last chord muscle (21) with last chord muscle (22) is the welding of S type and is in last chord muscle (21) with on the same or inequality lateral wall of lower chord muscle (22), web member reinforcing bar (23) are close to the corner of lower chord muscle (22) all extends to the below of lower chord muscle (22), correspond lower chord muscle (22) below web member reinforcing bar (23) buckling department to the both sides of lower chord muscle (22) are buckled and are formed bending foot (231), and is a plurality of bending foot (231) all weld on composite bottom plate (1).

2. The prefabricated assembled heat-insulating and sound-insulating composite floor slab as claimed in claim 1, wherein two adjacent bending legs (231) of the web member reinforcing steel bar (23) are respectively bent to different sides of the lower chord bar (22).

3. The prefabricated assembled heat-insulation sound-insulation composite floor slab as claimed in claim 1, wherein the composite bottom slab (1) comprises a steel plate (11), a heat-insulation plate (12), a cement plate (13) and a plurality of self-tapping screws, and the steel plate (11), the heat-insulation plate (12) and the cement plate (13) are sequentially arranged in an aligned manner from top to bottom; the plurality of self-tapping screws are sequentially fixedly penetrated on the cement plate (13), the heat insulation plate (12) and the steel plate (11); the plurality of bending legs (231) are welded to the steel plate (11).

4. The prefabricated assembled heat-insulation sound-insulation composite floor slab as claimed in claim 3, further comprising a plurality of micro ribs (14), wherein the plurality of micro ribs (14) are all of a long strip structure and are fixed on the steel plate (11) corresponding to the lower parts of the plurality of bending legs (231); a plurality of the bending legs (231) are welded to the micro-ribs (14).

5. The prefabricated assembled heat-insulating sound-insulating composite floor slab as claimed in claim 4, wherein the cross section of each of the plurality of micro ribs (14) is triangular.

6. The prefabricated assembled heat-insulating and sound-insulating composite floor slab as claimed in claim 3, wherein the steel plate (11) is a galvanized steel plate; the cement board (13) is a fiber cement board.

7. The prefabricated assembled heat-insulation sound-insulation composite floor slab as claimed in claim 3, further comprising sound-insulation paint, wherein the sound-insulation paint is sprayed on the surface of the steel plate (11) close to the steel bar truss (2).

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