CN220267009U - Steel rib prestressed concrete laminated slab with steel rib limiting, self-stabilizing and stacking device - Google Patents
Steel rib prestressed concrete laminated slab with steel rib limiting, self-stabilizing and stacking device Download PDFInfo
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- CN220267009U CN220267009U CN202321916889.9U CN202321916889U CN220267009U CN 220267009 U CN220267009 U CN 220267009U CN 202321916889 U CN202321916889 U CN 202321916889U CN 220267009 U CN220267009 U CN 220267009U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 191
- 239000010959 steel Substances 0.000 title claims abstract description 191
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 95
- 239000004567 concrete Substances 0.000 claims abstract description 103
- 239000002131 composite material Substances 0.000 claims abstract description 41
- 238000009826 distribution Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
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- 229920003023 plastic Polymers 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a steel rib prestressed concrete composite slab with steel rib limiting, self-stabilizing and stacking devices, and belongs to the field of assembly type buildings. The concrete pile comprises a prestressed concrete bottom plate, a concrete upper flange, steel ribs and supporting blocks; the supporting block comprises a shell structure and an internal concrete core, and an upper supporting structure and a lower supporting structure are respectively arranged on the top end face and the bottom end face of the shell structure; the shell structures of the two supporting blocks are respectively fixed at two sides of the design position of the web plate of the steel rib; the upper support structure and the lower support structure are respectively poured in the concrete upper flange and the prestressed concrete bottom plate, and the top end face of the upper support structure and the bottom end face of the lower support structure are respectively flush with the top surface of the concrete upper flange and the bottom surface of the prestressed concrete bottom plate. According to the utility model, the stacking stress is optimized through the supporting blocks, the stacking is safe and reliable, the concrete is prevented from being crushed, the displacement of the steel rib can be effectively limited, the stability of the steel rib is improved, and the inclined deformation of the steel rib and the upper flange of the concrete is prevented.
Description
Technical Field
The utility model relates to the field of assembled buildings, in particular to a steel rib prestressed concrete composite slab with a steel rib limiting, self-stabilizing and stacking device.
Background
The assembled building is becoming the main trend of the present China building industry gradually, and various assembled floors and superimposed sheets are appeared in the building market in order to adapt to the rapid development of the assembled building. The traditional assembled floor slab and the superimposed sheet mainly have the defects of large self weight, high manufacturing cost, poor structural integrity, low industrial production efficiency and the like. The steel rib prestressed concrete composite slab solves the problems to a certain extent, and comprises a steel rib, a concrete top flange and a bottom plate, wherein the top and the bottom of the steel rib are respectively poured in the concrete top flange and the bottom plate.
When the prior art steel rib prestressed concrete composite slab is stacked, the upper flange of the concrete and the steel rib are easy to crush, in order to solve the problem, cushion blocks (cushion blocks such as leveling battens) are generally placed at two ends of the bottom plate of the lower layer steel rib prestressed concrete composite slab, which are close to the steel rib, and the upper layer steel rib prestressed concrete composite slab is placed on the cushion blocks. Although the stacking mode can avoid the compression damage of the upper flange of the concrete and the steel rib, the stacked pressure can cause the bottom plate to crack through the cushion block due to the thinner bottom plate. In order to ensure stacking quality, the surface of the battens is smooth, the sizes are consistent, and the rest position of the battens on the upper surface of the bottom plate is smooth, so that unnecessary production quality control links are added, the production cost is increased, and popularization and application are not facilitated.
Disclosure of Invention
The utility model provides a steel rib prestressed concrete laminated slab with a steel rib limiting, self-stabilizing and stacking device, which optimizes the stacking stress through a supporting block, is safe and reliable to stack, prevents concrete from being crushed, has high production efficiency and simple structure, is convenient to install and position, can effectively limit the displacement of the steel rib, improves the stability of the steel rib, and prevents the steel rib and the upper flange of the concrete from being inclined and deformed.
The technical scheme provided by the utility model is as follows:
the steel rib prestressed concrete composite slab comprises a prestressed concrete bottom plate, wherein at least one group of upper structures are arranged on the prestressed concrete bottom plate, each group of upper structures comprises a concrete top flange, a steel rib and at least four supporting blocks, the concrete top flange is positioned above the prestressed concrete bottom plate to set the height, the steel rib is positioned between the prestressed concrete bottom plate and the concrete top flange, and the lower end and the upper end of the steel rib are respectively poured into the prestressed concrete bottom plate and the concrete top flange;
the supporting block comprises a shell structure, a concrete core is arranged in the shell structure, and a vertical upper supporting structure and a vertical lower supporting structure are respectively arranged on the top end face and the bottom end face of the shell structure; the shell structures of the two supporting blocks are respectively fixed at two sides of the design position of the web plate of the steel rib, and the adjacent two design positions are separated by a set distance; the upper support structure and the lower support structure are respectively poured into the concrete upper flange and the prestressed concrete bottom plate, and the top end face of the upper support structure and the bottom end face of the lower support structure are respectively flush with the top surface of the concrete upper flange and the bottom surface of the prestressed concrete bottom plate.
Further, the shell structure, the upper supporting structure and the lower supporting structure are made of steel, hard plastic or glass fiber reinforced plastic, the shell structure is cuboid in shape, the upper supporting structure and the lower supporting structure are supporting plates or supporting legs, and the supporting plates or the supporting legs and the shell structure are integrally formed.
Furthermore, the shell structure is provided with a pouring hole for pouring to form the concrete core, and the concrete label of the concrete core is not lower than the concrete label of the concrete upper flange and the prestressed concrete bottom plate.
Further, the prestressed concrete bottom plate comprises prestressed steel bars and bottom plate transverse distribution steel bars, and the concrete top flange comprises longitudinal steel bars and top flange transverse distribution steel bars;
the length direction of the supporting plate is parallel to the length direction of the steel rib, the supporting plate or the supporting legs are staggered with the prestressed steel bars and the longitudinal steel bars, and the supporting blocks are staggered with the bottom plate transverse distribution steel bars and the upper flange transverse distribution steel bars integrally.
Further, the top and bottom of the web are provided with an upper flange plate and a lower flange plate respectively, the height of the shell structure is not greater than the net height of the web, and the upper support structure and the lower support structure are located on the outer sides of the upper flange plate and the lower flange plate respectively.
Further, the section of the steel rib is Z-shaped, C-shaped or H-shaped.
Further, pouring anchor holes are formed in the upper flange plate and the lower flange plate, and penetrating holes are formed in the web plate.
Further, the design position is positioned outside the hoisting point of the steel rib prestressed concrete superimposed sheet, the distance between the design position and the end part of the concrete upper flange is not more than 300mm, and the distance between two adjacent design positions on the steel rib is not more than 2200mm;
the length of the shell structure is not less than 100mm, the width is not more than 1/2 of the width of the upper flange of the concrete, the height is not less than 95mm, and the thickness is not less than 5mm.
Further, the supporting plate is a straight plate or a corrugated plate, and the number of the supporting legs of each supporting block is two.
Further, the shell structure is adhesively secured to the side of the web of the steel rib by an adhesive.
Further, each superstructure comprises a plurality of steel ribs arranged in parallel spaced apart relation to each other, and the shell structure is secured to the web of the outermost steel rib.
The utility model has the following beneficial effects:
according to the utility model, the supporting blocks are arranged on the steel ribs, the upper supporting structure and the lower supporting structure of the supporting blocks are respectively poured into the concrete upper flange and the prestressed concrete bottom plate, and the top end surface of the upper supporting structure and the bottom end surface of the lower supporting structure are respectively flush with the top surface of the concrete upper flange and the bottom surface of the prestressed concrete bottom plate. The support blocks, the upper flange of the steel rib prestressed concrete laminated slab and the prefabricated bottom plate form a whole, and the support blocks are used as stacking supporting devices of the steel rib prestressed concrete laminated slab.
When the multi-layer steel rib prestressed concrete laminated slab is stacked, the supporting blocks can be used as stacking devices, the supporting blocks can be quickly found when stacked, and then flexible gaskets are arranged on the supporting blocks to be stacked layer by layer. Vertical load generated by the steel rib prestressed concrete superimposed sheet is borne by the supporting blocks, is directly transmitted to the foundation through the gaskets and the upper flanges and is transmitted to the supporting blocks vertically, and the stacked vertical load is accurate in positioning, simple in transmission, labor-saving, low in cost, safe and reliable, and the concrete upper flanges, the steel ribs and the prestressed concrete bottom plate cannot be crushed.
Drawings
FIG. 1 is a cross-sectional view of a steel rib prestressed concrete composite slab of the present utility model;
FIG. 2 is a perspective view of a steel rib;
FIG. 3 is a perspective view of the housing structure;
FIG. 4 is a perspective view of a support block;
FIG. 5 is a schematic view of a steel rib fixedly connected to a support block;
FIG. 6 is a schematic view of the integral components of the concrete top flange, steel ribs and support blocks;
FIG. 7 is a schematic view of a steel rib prestressed concrete composite slab of the present utility model;
fig. 8 is a schematic stacking view of the steel rib prestressed concrete composite slab of the present utility model.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a steel rib prestressed concrete composite slab with steel rib limiting, self-stabilizing and stacking devices, which comprises a prestressed concrete bottom plate 100, wherein at least one group of upper structures 200 are arranged on the prestressed concrete bottom plate, and each group of upper structures 200 comprises a concrete upper flange 300, at least one steel rib 400 and at least four supporting blocks 500. The concrete top flange 300 is located at a set height above the prestressed concrete floor 100, the steel rib 400 is located between the prestressed concrete floor 100 and the concrete top flange 300, and the lower end and the upper end of the steel rib 400 are respectively poured into the prestressed concrete floor 100 and the concrete top flange 300 to form an integral steel rib prestressed concrete composite slab.
The support block 500 comprises a housing structure 1, within which housing structure 1 a concrete core 13 is arranged. Through the compound setting of shell structure 1 and concrete core 13, on the one hand reduced the material quantity (compare solid supporting shoe quantity less) of the shell structure of supporting shoe, reduced the cost, on the other hand improved the intensity of supporting shoe 500 through compound structure.
The top end face and the bottom end face of the shell structure 1 are respectively provided with a vertical upper supporting structure 2 and a vertical lower supporting structure 3. The upper support structure 2 is located on the top end face of the housing structure 1 and extends vertically upwards by a certain height. The lower support structure 3 is located on the bottom end surface of the housing structure 1 and extends vertically downward by a certain height.
The steel rib 400 has a plurality of design positions, and two adjacent design positions are spaced apart by a set distance. For each design position, the shell structures 1 of the two support blocks 500 are respectively fixed at two sides of the design position of the web 4 of the steel rib 400, and preferably, the two support blocks 500 are symmetrically arranged at two sides of the web 4. The upper support structure 2 and the lower support structure 3 are cast in the concrete upper flange 300 and the prestressed concrete floor 100, respectively, and in some examples, a portion of the top and a portion of the bottom of the shell structure 1 are also cast in the concrete upper flange 300 and the prestressed concrete floor 400, respectively.
The top end surface of the upper support structure 2 and the bottom end surface of the lower support structure 3 are flush with the top surface of the concrete upper flange 300 and the bottom surface of the prestressed concrete floor 100, respectively.
According to the utility model, the supporting blocks are arranged on the steel ribs, the upper supporting structure and the lower supporting structure of the supporting blocks are respectively poured into the concrete upper flange and the prestressed concrete bottom plate, and the top end surface of the upper supporting structure and the bottom end surface of the lower supporting structure are respectively flush with the top surface of the concrete upper flange and the bottom surface of the prestressed concrete bottom plate. The support blocks, the upper flange of the steel rib prestressed concrete laminated slab and the prefabricated bottom plate form a whole, and the support blocks are used as stacking supporting devices of the steel rib prestressed concrete laminated slab.
When the multi-layer steel rib prestressed concrete composite slab is stacked, firstly, the steel rib prestressed concrete composite slab is transported and hoisted to a stacking place, the steel rib prestressed concrete composite slab at the bottommost layer is stably placed to a specified position through a lifting appliance, and the lifting appliance is removed. And then placing flexible gaskets such as battens and rubber on the top surface of the concrete upper flange at the support blocks, ensuring that the flexible gaskets are positioned above the upper support structure, wherein the horizontal dimension of the flexible gaskets is not more than the whole horizontal dimension of the two support blocks, and the central position of the flexible gaskets is consistent with the whole central position of the two support blocks. Stably placing the steel rib prestressed concrete superimposed sheet of the upper layer on the flexible gasket of the steel rib prestressed concrete superimposed sheet of the lower layer through a lifting appliance, and ensuring that the lower supporting structure of the upper layer is pressed on the flexible gasket of the lower layer; repeating the steps until the stacking is completed, wherein the number of stacked layers is not more than 9.
In stacking of the multi-layer steel rib prestressed concrete laminated slab, the supporting blocks can be used as stacking devices, the supporting blocks can be quickly found during stacking, and then flexible gaskets are arranged on the supporting blocks to be stacked layer by layer. Vertical load generated by the steel rib prestressed concrete superimposed sheet is borne by the supporting blocks, is directly transmitted to the foundation through the gaskets and the upper flanges and is transmitted to the supporting blocks vertically, and the stacked vertical load is accurate in positioning, simple in transmission, labor-saving, low in cost, safe and reliable, and the concrete upper flanges, the steel ribs and the prestressed concrete bottom plate cannot be crushed.
The production of the steel rib prestressed concrete superimposed sheet in the prior art mainly comprises two main steps: and 1, inverting the steel rib, supporting a die of the concrete upper flange, laying upper flange steel bars according to the requirement, pouring the concrete of the upper flange, curing until the concrete reaches the design strength, and removing the die to form an integral part of the concrete upper flange and the steel rib. And 2, erecting a die of the bottom plate, turning over the integral part of the concrete upper flange and the steel rib for 180 degrees, laying the bottom plate steel bars according to the requirement, pouring the bottom plate concrete, and removing the die after the bottom plate concrete is cured to the design strength to obtain the integral steel rib prestressed concrete composite slab.
In the step 1, the problems of difficult positioning and limiting and poor stability of the steel rib exist, and the steel rib is easy to deform or twist sideways due to the longer length and thinner thickness of the steel rib. In the step 2, the problems that the steel rib and the upper flange of the concrete are not straight and easy to incline or incline and the like exist.
The supporting block provided by the utility model can also play roles in limiting the steel rib and preventing the steel rib and the upper flange of the concrete from tilting and deforming when the steel rib prestressed concrete composite slab is prepared. The preparation process of the steel rib prestressed concrete composite slab comprises the following steps:
1. the steel rib 400 and the support blocks 500 are fabricated according to design requirements.
In this step, the steel plate is cut, straightened and bent to form the steel rib 400 according to the design requirements of the steel rib prestressed concrete composite slab, and the supporting block 500 is processed according to the structural and dimensional design requirements of the supporting block.
2. For each design position of the steel rib 400, the case structure 1 of the two support blocks 500 is fixedly connected to both sides of the design position of the steel rib 400.
3. The steel rib 400 with the supporting block 500 is inverted on the die table, so that the top end surface of the upper supporting structure 2 is placed on the upper surface of the die table, an upper flange die is supported, upper flange concrete is poured, and after the upper flange concrete is cured to reach the design strength, the die is removed, and the integral components of the concrete upper flange 300, the steel rib 400 and the supporting block 500 are formed.
When the utility model is used for manufacturing the integral parts of the concrete upper flange 300, the steel rib 400 and the supporting block 500, the upper supporting structure 2 of the supporting block 500 is supported on the die table, the supporting block 500 is used for supporting and limiting the steel rib 400, the steel rib 400 can be positioned without arranging an additional positioning structure of the steel rib, the stability of the steel rib is good, and the problems of lateral deformation or torsion and the like are avoided.
The upper support structure 2 has a set height for providing a set gap between the shell structure 1 and the formwork so that the concrete upper flange 300 forms a concrete protection layer of a certain thickness over the shell structure 1.
4. The integrated part is turned over by 180 degrees and then placed on the die table, the bottom end surface of the lower supporting structure 3 is placed on the upper surface of the die table, the bottom plate die is supported, the bottom plate concrete is poured, and the die is disassembled after the bottom plate concrete reaches the design strength after curing.
After the form is removed, the concrete top flange 300, the steel rib 400, the supporting blocks 500 and the prestressed concrete floor 100 are formed into an organic whole, and the integral steel rib prestressed concrete composite slab is obtained.
When the prestressed concrete bottom plate 100 is manufactured, the supporting blocks 500 play roles in supporting, limiting, preventing inclination deformation and the like on the steel rib 400 and the concrete top flange 300, preventing the steel rib 400 and the concrete top flange 300 from inclining or tilting, and preventing the problems of unsmooth alignment and the like of the steel rib and the concrete top flange caused by the deformation of the steel rib 400.
The lower support structure 3 has a set height for providing a set gap between the housing structure 1 and the formwork, facilitating the formation of a concrete protection layer of a certain thickness below the housing structure 1 by the prestressed concrete floor 100.
The utility model solves the problems of the steel rib prestressed concrete superimposed sheet in the prior art in preparation by arranging the supporting blocks. When the concrete upper flange and the steel rib are poured, the supporting blocks can be used as supporting, limiting and stabilizing devices of the steel rib, and the steel rib is prevented from being deviated, twisted or inclined to deform and the like. When the bottom plate concrete is poured, the supporting blocks can be used as supporting, limiting and stabilizing devices for the integral steel ribs and the concrete upper flange, and prevent the occurrence of unsmooth straight, offset, torsion or inclined deformation and the like. The utility model effectively plays roles of limiting, supporting and fixing the steel rib and the concrete top flange through the supporting blocks, and effectively solves the problems that the steel rib and the concrete top flange are unstable, unsmooth, straight, inclined and deformed and the like in the pouring process of the steel rib and the concrete top flange and the prefabricated bottom plate, thereby improving the production quality and the manufacturing efficiency of the steel rib prestressed concrete composite slab.
In the utility model, one specific implementation mode of the supporting block is as follows: the shell structure 1 is a hollow cuboid structure, the shell structure 1, the upper supporting structure 2 and the lower supporting structure 3 can be made of steel, hard plastic or glass fiber reinforced plastic and the like, and are convenient to process and shape, and the compressive strength of the shell structure is the same as or slightly higher than that of a concrete upper flange. The upper support structure 2 and the lower support structure 3 are support plates or support legs, and the support plates or the support legs and the shell structure 1 are integrally formed. The supporting block has the advantages of simple process, low production cost, high production efficiency, convenient field installation and positioning and high safety, and can meet the batch production and transportation of factories.
The support plate may be a straight plate or a corrugated plate, the support legs may be cylindrical, and the number of support legs per support block 500 may be two, so that the support is more stable.
The casing structure 1 is provided with pouring holes 14 for pouring to form a concrete core 13, and the concrete label of the concrete core 13 is not lower than the concrete labels of the concrete upper flange 300 and the prestressed concrete bottom plate 100. The pouring aperture 14 may be arranged horizontally on one side of the housing structure 1.
The aforesaid prestressed concrete floor 100 may further include prestressed reinforcement 5 and floor transverse distribution reinforcement 6, the prestressed reinforcement 5 being disposed throughout the length direction of the prestressed concrete floor 100. The concrete top flange 300 includes longitudinal bars 7 and top flange transverse distribution bars 8, and the longitudinal bars 7 are arranged in the length direction of the concrete top flange 300.
The length direction of the support plate is parallel to the length direction of the steel rib 400 and parallel to the prestressed reinforcement 5, preventing the arrangement of the prestressed reinforcement 5 and the longitudinal reinforcement 7 from being hindered, and enabling the support plate or the support leg to be arranged in a staggered manner with the prestressed reinforcement 5 and the longitudinal reinforcement 7. The length of the supporting block 500 is smaller than the distance between the adjacent bottom plate transverse distribution steel bars 6 and the upper flange transverse distribution steel bars 8, so that the supporting block 500 can be staggered with the bottom plate transverse distribution steel bars 6 and the upper flange transverse distribution steel bars 8 as a whole. The supporting blocks 500 are prevented from adversely affecting the reinforcement arrangement of the prestressed concrete floor 100 and the concrete upper flanges 300.
Correspondingly, in the preparation process of the steel rib prestressed concrete composite slab, the preparation process further comprises the following steps of: and the inner surface of the upper flange die is coated with a release agent, so that the demolding is convenient. And binding the longitudinal steel bars 7 and the transverse steel bars 8 of the upper flange to form a steel bar net of the concrete upper flange.
Similarly, the method further comprises the following steps before pouring the bottom plate concrete: and (3) coating a release agent on the inner surface of the bottom plate die, distributing the bottom plate transverse distribution steel bars 6, and tensioning the prestressed steel bars 5.
The top and bottom ends of the web 4 of the steel rib 400 are respectively provided with an upper flange plate 9 and a lower flange plate 10, and the section of the steel rib can be Z-shaped, C-shaped or H-shaped. The height of the housing structure 1 is smaller than the clear height of the web 4, and as a preference the housing structure 1 may be equal to the clear height of the web 4. The upper and lower support structures 2, 3 are located outside the upper and lower flanges 9, 10, respectively.
The upper flange plate 9 and the lower flange plate 10 can be provided with pouring anchoring holes 11 for forming concrete cotter action at the pouring anchoring holes when pouring concrete, so as to enhance the anchoring effect. The web 4 can be provided with a penetrating hole 12 for penetrating the steel bars and the pipelines when the steel rib prestressed concrete composite slab is used. The pouring anchor holes 11 and the penetrating holes 12 can be round holes, and the pouring anchor holes 11 and the penetrating holes 12 can be processed in manufacturing the steel rib 400.
The design position is located outside the hoisting point of the steel rib prestressed concrete composite slab, the distance between the design position and the end of the concrete top flange 300 is not more than 300mm, and the distance between two adjacent design positions on the steel rib 400 is not more than 2200mm.
The length of the shell structure 1 is not less than 100mm, and the width is not more than 1/2 of the width of the upper flange of the concrete, for example, 60mm. The height of the shell structure 1 can be determined according to the design, for example, the height of the composite slab can be adjusted according to the total height of the composite slab, and the composite slab is suitable for different production requirements of the steel rib prestressed concrete composite slab, but the height of the composite slab is not smaller than 95mm, for example, the value of 105mm. The thickness of the housing structure 1 is not less than 5mm.
In the present utility model, the shell structure 1 may be adhesively secured to the side of the web 4 of the steel rib 400 by means of an adhesive. When the steel rib is fixed, the bonding surface of the inner side surface of the shell structure 1 and the web plate 4 is coated with an adhesive such as epoxy resin and bonded, so that the steel rib and the supporting block are integrated.
When the height of the shell structure 1 is equal to or slightly smaller than the clear height of the web 4, an adhesive such as epoxy resin can be coated and bonded on the upper and lower end surfaces of the shell structure 1 and the upper and lower flange plates 9 and 10 of the steel rib 400, so that the bonding effect can be enhanced.
The steel rib 400 of one upper structure of the present utility model may be one or more, and when each upper structure includes a plurality of steel ribs 400, the plurality of steel ribs 400 are disposed in parallel with each other at a distance from each other, and the case structure 1 is fixed to the web of the outermost steel rib.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (11)
1. The steel rib prestressed concrete composite slab is characterized by comprising a prestressed concrete bottom plate, wherein at least one group of upper structures are arranged on the prestressed concrete bottom plate, each group of upper structures comprises a concrete top flange, a steel rib and at least four supporting blocks, the concrete top flange is positioned above the prestressed concrete bottom plate for setting the height, the steel rib is positioned between the prestressed concrete bottom plate and the concrete top flange, and the lower end and the upper end of the steel rib are respectively poured into the prestressed concrete bottom plate and the concrete top flange;
the supporting block comprises a shell structure, a concrete core is arranged in the shell structure, and a vertical upper supporting structure and a vertical lower supporting structure are respectively arranged on the top end face and the bottom end face of the shell structure; the shell structures of the two supporting blocks are respectively fixed at two sides of the design position of the web plate of the steel rib, and the adjacent two design positions are separated by a set distance; the upper support structure and the lower support structure are respectively poured into the concrete upper flange and the prestressed concrete bottom plate, and the top end face of the upper support structure and the bottom end face of the lower support structure are respectively flush with the top surface of the concrete upper flange and the bottom surface of the prestressed concrete bottom plate.
2. The steel rib prestressed concrete composite slab of a steel rib limiting, self-stabilizing and stacking device according to claim 1, wherein the shell structure, the upper supporting structure and the lower supporting structure are made of steel, hard plastic or glass fiber reinforced plastic, the shell structure is rectangular, the upper supporting structure and the lower supporting structure are supporting plates or supporting legs, and the supporting plates or the supporting legs and the shell structure are integrally formed.
3. The steel rib prestressed concrete composite slab of a steel rib limiting, self-stabilizing and stacking device according to claim 2, wherein the shell structure is provided with pouring holes for pouring to form the concrete core, and the concrete label of the concrete core is not lower than the concrete labels of the concrete upper flange and the prestressed concrete bottom plate.
4. The steel rib prestressed concrete composite slab of the steel rib limiting, self-stabilizing and stacking device according to claim 2, wherein the prestressed concrete bottom plate comprises prestressed steel bars and bottom plate transverse distribution steel bars, and the concrete top flange comprises longitudinal steel bars and top flange transverse distribution steel bars;
the length direction of the supporting plate is parallel to the length direction of the steel rib, the supporting plate or the supporting legs are staggered with the prestressed steel bars and the longitudinal steel bars, and the supporting blocks are staggered with the bottom plate transverse distribution steel bars and the upper flange transverse distribution steel bars integrally.
5. The steel rib prestressed concrete composite slab of a steel rib limiting, self-stabilizing and stacking device according to claim 4, wherein an upper flange plate and a lower flange plate are respectively arranged at the top end and the bottom end of the web, the height of the shell structure is not greater than the net height of the web, and the upper supporting structure and the lower supporting structure are respectively arranged at the outer sides of the upper flange plate and the lower flange plate.
6. The steel rib prestressed concrete composite slab of a steel rib limiting, self-stabilizing and stacking device according to claim 5, wherein the section of the steel rib is Z-shaped, C-shaped or H-shaped.
7. The steel rib prestressed concrete composite slab of the steel rib limiting, self-stabilizing and stacking device according to claim 5, wherein pouring anchor holes are formed in the upper flange plate and the lower flange plate, and penetrating holes are formed in the web plate.
8. The steel rib prestressed concrete composite slab of the steel rib limiting, self-stabilizing and stacking device according to claim 5, wherein the design position is positioned outside a hoisting point of the steel rib prestressed concrete composite slab, the distance between the design position and the end part of the concrete top flange is not more than 300mm, and the distance between two adjacent design positions on the steel rib is not more than 2200mm;
the length of the shell structure is not less than 100mm, the width is not more than 1/2 of the width of the upper flange of the concrete, the height is not less than 95mm, and the thickness is not less than 5mm.
9. The steel rib prestressed concrete composite slab of a steel rib limiting, self-stabilizing and stacking device according to claim 2, wherein the supporting plates are straight plates or corrugated plates, and the number of supporting legs of each supporting block is two.
10. The steel rib prestressed concrete composite slab of a steel rib spacing, self-stabilizing and stacking device according to any one of claims 1-9, wherein said shell structure is adhesively secured to the sides of the web of said steel rib by an adhesive.
11. The steel rib prestressed concrete composite slab of a steel rib spacing, self-stabilizing and stacking device of claim 10, wherein each superstructure includes a plurality of steel ribs spaced parallel to each other, said shell structure being secured to the web of the outermost steel rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321916889.9U CN220267009U (en) | 2023-07-20 | 2023-07-20 | Steel rib prestressed concrete laminated slab with steel rib limiting, self-stabilizing and stacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321916889.9U CN220267009U (en) | 2023-07-20 | 2023-07-20 | Steel rib prestressed concrete laminated slab with steel rib limiting, self-stabilizing and stacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267009U true CN220267009U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321916889.9U Active CN220267009U (en) | 2023-07-20 | 2023-07-20 | Steel rib prestressed concrete laminated slab with steel rib limiting, self-stabilizing and stacking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267009U (en) |
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2023
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