CN213293340U - A prefabricated bottom plate that is used for shaped steel spare of superimposed sheet and includes its superimposed sheet - Google Patents
A prefabricated bottom plate that is used for shaped steel spare of superimposed sheet and includes its superimposed sheet Download PDFInfo
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- CN213293340U CN213293340U CN202021909264.6U CN202021909264U CN213293340U CN 213293340 U CN213293340 U CN 213293340U CN 202021909264 U CN202021909264 U CN 202021909264U CN 213293340 U CN213293340 U CN 213293340U
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Abstract
The utility model discloses a prefabricated bottom plate that is used for superimposed sheet's shaped steel spare and includes its superimposed sheet belongs to the assembly type building field, a connecting piece that is used for having connecting groove and jack on with the superimposed sheet bottom plate joins in marriage the dress, shaped steel spare includes top flange board and web, the web is the same with top flange board length, and the long limit of web is connected perpendicularly and both ends flush with top flange board middle part, the terminal surface shape of formation is the T type, the web is equipped with a plurality of bolt holes along length direction, wherein two bolt holes are located the web both ends respectively, a jack alignment with the connecting piece, the web both ends are arranged in pegging graft respectively in the connecting groove of two connecting pieces and pass through the bolt-up, make top flange board can laminate with the connecting piece upper surface. The section steel piece of the utility model can be repeatedly used, thereby saving the cost; the sleeper can be replaced to shaped steel spare, and it is more convenient that prefabricated bottom plate stacks, avoids the workman to place the prefabricated bottom plate fracture risk that the sleeper arouses at will. And the steel bar truss is not arranged, so that the steel bar consumption of the laminated slab is saved, and the cost is saved.
Description
Technical Field
The utility model relates to an assembly type structure field especially relates to a prefabricated bottom plate that is used for superimposed sheet's shaped steel spare and includes its superimposed sheet.
Background
At present, the assembled building is widely popularized in China, and the horizontal prefabricated component which is most widely applied to the assembled concrete building is a steel bar truss concrete laminated slab. The steel bar truss concrete laminated slab adopts the steel bar truss to increase the rigidity of the concrete prefabricated bottom plate and reduces the risk of cracking of the prefabricated bottom plate in the processes of demoulding, hoisting, stacking, transporting and installing. However, the steel bar truss is large in steel amount and cannot be reused when being poured with the laminated floor slab, so that the cost increment of the laminated slab is large. Meanwhile, the steel bar truss needs to be designed to be higher in height so as to ensure smooth pipe penetration of hydropower pipelines on a construction site, and the thickness of the laminated floor slab is increased, so that the cost of the laminated slab is further increased.
In the stacking process of the steel bar truss concrete composite slab, sleepers need to be placed between different composite slabs as cushion blocks, the material using amount is increased in the mode, and the sleepers are often placed randomly by workers, so that the composite slab cracks in the stacking process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a prefabricated bottom plate that is used for superimposed sheet's shaped steel spare and includes its superimposed sheet, this shaped steel spare passes through the bolt can dismantle with the connecting piece of bottom plate and is connected, ability reuse makes the superimposed sheet conveniently stack in shaped steel spare's use, reduces the possibility of fracture.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
on the one hand, the utility model provides a shaped steel spare for superimposed sheet for with superimposed sheet bottom plate on have connecting piece assembly of connecting groove and jack, shaped steel spare includes upper limb listrium and web, the web is the same with upper limb listrium length, just the long limit of web is connected perpendicularly and both ends flush with upper limb listrium middle part, and the terminal surface shape of formation is the T type, the web is equipped with a plurality of bolt holes along length direction, and wherein two bolt holes are located the web both ends respectively for align with the jack of connecting piece, the web both ends are arranged in pegging graft respectively in the connecting groove of two connecting pieces and pass through the bolt-up, make upper limb listrium can laminate with the connecting piece upper surface.
Further, the lower flange plate is vertically connected to the middle area of the other long edge of the web plate and used for being attached to the upper surface of the bottom plate.
Further, the lower flange plate is of a whole-segment type.
Furthermore, the lower flange plates are of sectional type and are connected to the long edges of the webs in a segmented mode, the webs between the two lower flange plates are used for being inserted into the connecting grooves of the connecting pieces in an inserting mode, and the web is provided with the bolt holes used for being aligned with the inserting holes of the connecting pieces.
Further, the bolt hole is an oval bolt hole.
Further, the distance between the plurality of bolt holes is set according to the module distance.
Further, the pin holes are uniformly distributed on the web.
On the other hand, provide a prefabricated bottom plate of superimposed sheet, including connecting piece group and with connecting piece group lower part cast molding's concrete bottom plate, still include superimposed sheet's shaped steel spare, connecting piece group includes two at least connecting pieces, connecting piece upper portion is equipped with the connecting groove who is used for inserting shaped steel spare web, connecting piece upper portion still is equipped with the jack that runs through of perpendicular to connecting groove, the connecting groove of connecting piece group is located same straight line, makes the web of shaped steel spare inserts connecting groove and passes jack and web through the bolt and fasten.
Further, the number of the connecting element groups is one or more than one.
After adopting such design, the utility model discloses following advantage has at least:
(1) the connecting piece of the steel part and the laminated slab of the utility model is detachably connected through the bolt, can be repeatedly used and saves the cost; the section steel has high rigidity, and forms a combined structure with the concrete prefabricated bottom plate in the processes of demoulding, hoisting, stacking, transporting and installing, so that the cracking risk is reduced more effectively; the section steel part and the multifunctional concrete block connecting piece are connected in a bolt manner, so that the construction is simple, convenient and reliable; after the bottom plate of superimposed sheet was made, pegged graft shaped steel spare on the connecting piece on the bottom plate, made upper limb listrium and connecting piece upper surface laminating, then through the bolt-up, generally set up two at least shaped steel spares on the bottom plate, the shaped steel spare can replace the sleeper, and it is more convenient that prefabricated bottom plate stacks, can avoid the workman to place the prefabricated bottom plate fracture risk that the sleeper arouses at will. The utility model discloses make superimposed sheet do not have steel bar truss, save the reinforcing bar quantity of superimposed sheet, save the cost.
(2) The utility model discloses a shaped steel upper surface (last flange plate) levels and (lower flange plate) is bigger with the area of contact of prefabricated bottom plate, further avoids the workman to place the prefabricated bottom plate fracture risk that the sleeper arouses at will.
(3) The utility model discloses a be provided with bolt hole and hole for hoist according to the modulus interval on the shaped steel spare, be applicable to the prefabricated bottom plate of different length, have very strong commonality.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic structural view of one embodiment of a section steel member for a laminated slab according to the present invention;
FIG. 2 is a schematic structural view showing another embodiment of a section steel member for a laminated slab according to the present invention;
FIG. 3 is a schematic structural view of an embodiment of the bolt for connecting steel sections according to the present invention;
FIG. 4 is a schematic structural view showing an embodiment of the present invention in which a section steel member for a laminated slab is attached to a bottom plate of the laminated slab;
FIG. 5 is a schematic view of an embodiment of a bottom plate of a composite slab with removed sections after hoisting.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides an embodiment of a shaped steel spare for superimposed sheet, as shown in fig. 1 to 5, be used for with superimposed sheet bottom plate 1 on have connecting groove and jack the connecting piece 3 of joining in marriage the dress, shaped steel 4 includes upper limb listrium 41 and web 43, web 43 is the same with upper limb listrium 41 length, and the long limit of web 43 with upper limb listrium 41 middle part is connected perpendicularly and both ends flush, the terminal surface shape of formation is the T type, web 43 is equipped with a plurality of bolt holes 46 along length direction, wherein two bolt holes are located web 43 both ends respectively, be used for lining up with connecting piece 3's jack, the web both ends are arranged in pegging graft respectively in the connecting groove of two connecting pieces and through bolt fastening (passing connecting piece jack and bolt hole), make upper limb listrium can laminate with connecting piece 3 upper surface.
In the above embodiment, the bolt used includes the screw 44 and the nut 45, and the screw 44 includes the thread head 441 and the enlarged head 442.
In the above embodiment, as shown in fig. 4 and 5, the bottom plate 1 of the composite slab may be a prefabricated bottom plate, and is a reinforced concrete slab, and the bottom plate is provided with the connecting member 3, the transverse reinforcing steel bars 12 and the longitudinal reinforcing steel bars 11, and the lower surface of the connecting groove of the connecting member 3 is flush with the upper surface of the prefabricated bottom plate, so that the lower flange plate can be attached to the bottom plate.
In order to further reduce cracking, a lower flange plate 42 is further included, and the lower flange plate 42 is vertically connected to the middle area of the other long side of the web 43 for being attached to the laminated floor 1. The contact area between the upper surface (upper flange plate) of the section steel part and the prefabricated bottom plate is larger, and the risk of cracking of the prefabricated bottom plate caused by random placement of sleepers by workers is further avoided.
The lower flange plate 42 can be of an integral type or a sectional type along the length direction, when two multifunctional concrete block connecting pieces 3 are arranged along the length direction of the section steel piece 4, the lower flange plate 42 is of an integral type along the length direction, and when three or more multifunctional concrete block connecting pieces 3 are arranged along the length direction of the section steel piece 4, the lower flange plate 42 is of a sectional type along the length direction; the height of the web plate 43 is the same as the thickness of the cast-in-place concrete laminated layer of the laminated slab, and is matched with the depth of the connecting groove; the web plate 43 is provided with elliptical bolt holes 46 according to the module spacing, the bolt holes 46 are used as hoisting holes during demoulding, hoisting and hoisting, the elliptical major axis is along the length direction of the web plate 43, the elliptical minor axis is along the height direction of the web plate 43, and the length of the elliptical minor axis is the same as the diameter of the jack on the multifunctional concrete block connecting piece 3; the diameter of the matched screw rod 44 is the same as that of the jack on the multifunctional concrete block connecting piece 3, the length of the matched screw rod 44 is slightly longer than the depth of the jack on the multifunctional concrete block connecting piece 3, one end of the two ends of the screw rod 44 is provided with a thread head 441, the other end of the screw rod 44 is provided with an enlarged head 442, the diameter of the enlarged head is larger than that of the screw rod 44, and the nut 45 is matched with the thread head 441 and can be screwed into the screw rod 44.
In the above embodiment, the plurality of pin holes 46 may be uniformly distributed on the web 43.
The utility model discloses a concrete use case of shaped steel spare is:
(1) demoulding and hoisting the prefabricated base plate 1: after the concrete of the prefabricated bottom plate 1 meets the requirements of demoulding and hoisting strength, the section steel part 4 is connected with the multifunctional concrete block connecting piece 3, the web plate 43 of the section steel part 4 is inserted into the connecting groove on the multifunctional concrete block connecting piece 3, the bolt hole 46 on the web plate 43 is superposed with the jack position on the multifunctional concrete block connecting piece 3, the lower flange plate 42 of the section steel part 4 is tightly jointed with the surface of the prefabricated bottom plate 1, the upper flange plate 41 of the section steel part 4 is tightly jointed with the upper surface of the multifunctional concrete block connecting piece 3, a matched screw 44 is inserted from the jack on one side of the multifunctional concrete block connecting piece 3, and a nut 45 is screwed on the opposite side for fixing. After all the multifunctional concrete block connecting pieces 3 on the prefabricated base plate 1 are fixedly connected with the section steel pieces 4, the hoisting steel cable penetrates through the bolt holes 46 on the section steel pieces 4, and demoulding and hoisting are carried out.
(2) Stacking and transporting the prefabricated bottom plate 1: when the prefabricated bottom plates 1 are stacked and transported, the prefabricated bottom plates 1 on the upper layer can be directly stacked on the flange plates 41 on the section steel members 4 of the prefabricated bottom plates 1 on the lower layer.
(3) Hoisting and installing the prefabricated bottom plate 1: and (3) penetrating a hoisting steel cable through a bolt hole 46 on the section steel part 4, hoisting the prefabricated bottom plate 1 to a position of the cell laminated slab from a storage yard of a construction site, installing and falling, sequentially unscrewing nuts 45 on the multifunctional concrete block connecting piece 3 after the prefabricated bottom plate 1 is in place, pulling out a screw 44, dismounting the section steel part 4, and completing hoisting and installing of the prefabricated bottom plate 1. And then placing reinforcing steel bars 21 in the grooves perpendicular to the connecting grooves, laying transverse and longitudinal reinforcing steel bars, and pouring the laminated slab.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (9)
1. The utility model provides a shaped steel spare for superimposed sheet, its characterized in that for with the connecting piece assembly that has connecting groove and jack on the superimposed sheet bottom plate, shaped steel spare includes upper limb listrium and web, the web is the same with upper limb listrium length, just the long limit of web is connected perpendicularly and both ends flush with upper limb listrium middle part, and the terminal surface shape of formation is the T type, the web is equipped with a plurality of bolt holes along length direction, and wherein two bolt holes are located the web both ends respectively for align with the jack of connecting piece, the web both ends are arranged in pegging graft respectively in the connecting groove of two connecting pieces and pass through the bolt-up, make upper limb listrium can laminate with the connecting piece upper surface.
2. The section steel member for a laminated slab as claimed in claim 1, further comprising a lower flange plate vertically attached to a middle area of the other long side of the web for being adhered to the upper surface of the bottom plate.
3. The section steel member for a laminated slab as claimed in claim 2, wherein the lower flange plate is of a one-piece type.
4. The section steel for a composite slab as claimed in claim 2, wherein the lower flange plates are segmented and connected to the long sides of the webs in segments, the webs between the two lower flange plates are adapted to be inserted into the connecting grooves of the connecting members, and the webs are provided with the pin holes for aligning with the insertion holes of the connecting members.
5. The section steel member for a laminated slab as claimed in any one of claims 1 to 4, wherein the pin holes are oval pin holes.
6. The section steel member for a laminated slab as claimed in any one of claims 1 to 4, wherein the pitch of the plurality of pin holes is set according to a module pitch.
7. A steel section for a composite slab according to any one of claims 1 to 4 wherein the plurality of pin holes are evenly distributed in the web.
8. A prefabricated bottom plate of a composite slab is characterized by comprising a connecting piece group and a concrete bottom plate cast and formed under the connecting piece group, and further comprising the section steel piece for the composite slab as claimed in any one of claims 1 to 7, wherein the connecting piece group comprises at least two connecting pieces, a connecting groove for inserting a web of the section steel piece is arranged on the upper portion of each connecting piece, a penetrating jack perpendicular to the connecting groove is further arranged on the upper portion of each connecting piece, the connecting grooves of the connecting piece group are located on the same straight line, and the web of the section steel piece is inserted into the connecting groove and passes through the jack and the web through a bolt to be fastened.
9. The prefabricated floor panel of a composite slab as claimed in claim 8, wherein said number of said connector group is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021909264.6U CN213293340U (en) | 2020-09-04 | 2020-09-04 | A prefabricated bottom plate that is used for shaped steel spare of superimposed sheet and includes its superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021909264.6U CN213293340U (en) | 2020-09-04 | 2020-09-04 | A prefabricated bottom plate that is used for shaped steel spare of superimposed sheet and includes its superimposed sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213293340U true CN213293340U (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021909264.6U Active CN213293340U (en) | 2020-09-04 | 2020-09-04 | A prefabricated bottom plate that is used for shaped steel spare of superimposed sheet and includes its superimposed sheet |
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| Country | Link |
|---|---|
| CN (1) | CN213293340U (en) |
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- 2020-09-04 CN CN202021909264.6U patent/CN213293340U/en active Active
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