CN220607832U - Goods shelf beam combining steel and high-strength grouting material - Google Patents
Goods shelf beam combining steel and high-strength grouting material Download PDFInfo
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- CN220607832U CN220607832U CN202322167454.5U CN202322167454U CN220607832U CN 220607832 U CN220607832 U CN 220607832U CN 202322167454 U CN202322167454 U CN 202322167454U CN 220607832 U CN220607832 U CN 220607832U
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- steel
- grouting material
- strength grouting
- strength
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 43
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000007373 indentation Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims 3
- 238000005452 bending Methods 0.000 abstract description 8
- 230000002301 combined effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007728 cost analysis Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a shelf beam combining steel and high-strength grouting materials, which is suitable for heavy shelf beams, attic platform beams and the like. The beam comprises cold-formed steel and high-strength grouting material, and improves the bending rigidity and bearing capacity of the beam while using less steel through the combined effect of the steel and the high-strength grouting material, so that the problems that the beam of the traditional heavy goods shelf is often manufactured by adopting the cold-formed steel with a small section, the bearing capacity of the beam is surplus and materials are relatively wasted under the condition of meeting the deformation requirement are solved; in addition, the utility model increases the combination capacity of the steel and the high-strength grouting material through the perforation and bending design of the steel in the grouting area of the cold-formed steel, and is more reliable in use.
Description
Technical Field
The utility model relates to the technical field of steel structure shelves, in particular to a shelf beam formed by combining steel and high-strength grouting materials.
Background
In recent years, due to the rapid development of economy, the demands of various industries on shelves are continuously increased, and the output of the shelves and the market scale of China are continuously expanded. With respect to the type of the goods shelves, an automatic high-rise stereoscopic warehouse has more remarkable development, and the demand of heavy goods shelves is high. The common heavy goods shelves crossbeam in present market is two C shaped steel armful roof beam and cold bending rectangle steel pipe, and the use of heavy goods shelves in order to prevent that the crossbeam from producing great deformation, generally need use more steel for steel is extravagant in bearing capacity.
Disclosure of Invention
The utility model aims to provide a shelf beam combining steel and high-strength grouting materials, which utilizes the high-strength grouting materials to improve the rigidity of the beam so as to reduce the steel consumption.
In order to achieve the aim, the utility model provides a shelf beam combining steel and high-strength grouting material, which comprises cold-formed steel and high-strength grouting material;
and the upper flange of the cold-formed steel is bent to form a semi-closed grouting cavity, and the high-strength grouting material is poured into the grouting cavity and then is solidified into a reinforcing beam.
Further, the end part of the upper flange is bent into the grouting cavity to form a reinforcing rib combined with the high-strength grouting material.
Further, the reinforcing ribs are provided with ventilation holes for pouring.
Further, the side wall of the grouting cavity is provided with an indentation.
Further, the lower flange of the cold-formed steel is bent to form a double-layer steel beam flange.
Further, the high-strength grouting material is a grouting material with strength larger than grade A60.
Compared with the prior art, the utility model has the advantages that:
1. the combined action of steel and high-strength grouting material is adopted, so that the bearing capacity and rigidity of the beam are improved, and the steel cost is reduced.
2. The cold-formed steel increases the bonding capacity of the steel and the high-strength grouting material by arranging the indentations, the reinforcing ribs and the ventilation holes of the reinforcing ribs to embed the high-strength grouting material, and the use is more reliable.
3. The semi-closed cavity is adopted to pour the high-strength grouting material, so that the grouting is easier and the quality is more controllable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a shelf beam combined by steel and high-strength grouting materials;
FIG. 2 is a schematic cross-sectional view of a shelf beam of the steel and high strength grouting material combination of the present utility model;
fig. 3 is a diagram comparing the cross beam of the present utility model with a conventional cross beam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further described below.
As shown in fig. 1, the utility model provides a shelf beam formed by combining steel and high-strength grouting materials, cold-formed steel 1 and high-strength grouting materials 2; as shown in fig. 2, the upper flange of the cold-formed steel 1 is bent to form a semi-closed grouting cavity, specifically, after the upper flange is bent for 90 degrees twice, the end part is bent into the grouting cavity again to form a reinforcing rib 5 combined with the high-strength grouting material 2; the lower flange of the cold-formed steel 1 is bent to form a double-layer steel beam flange 6, the high-strength grouting material 2 is poured into the grouting cavity and then is solidified into a reinforcing beam, and the strength of the high-strength grouting material 2 is greater than that of the A60-level grouting material 2.
In order to further enhance the bonding capability of the steel and the high-strength grouting material 2, the reinforcing ribs 5 are provided with ventilation holes 4 for pouring; the side wall of the grouting cavity is provided with an indentation 3.
The heavy pallet beams using common loads and spans will be compared to the pallet beams of the present utility model as shown in fig. 3. The span of the common heavy goods shelf beam is 2.7m, 2 trays with 1t bearing are placed on the beam, the goods shelf beam is required to meet the bearing requirements of the 2 trays with 1t bearing, and meanwhile, the deformation of the goods shelf beam is required to be met and cannot be larger than 10.8mm.
The common steel shelf beam adopts cold-formed rectangular steel pipes with the width of 60mm, the height of 120mm and the thickness of 2 mm. A shelf beam combining steel and high-strength grouting material is adopted, cold-formed steel with the width of 60mm, the height of 120mm and the thickness of 1.4mm is adopted, and A80-level high-strength grouting material is internally poured.
The calculation results are shown in table 1 below:
table 1 comparison of two shelf beams stress and deformation
According to the calculation result, when the cold-bending rectangular steel pipe beam is adopted as the shelf beam, the mid-span deflection is 9.9mm and approaches to the requirement of maximum deflection of 10.8mm, and at the moment, the ratio of mid-span bending moment to ultimate bearing bending moment is 79%, and the bearing capacity is surplus by 21%. The combined beam of steel and high-strength grouting material is adopted, the mid-span deflection is 8.8mm, the ratio of the mid-span bending moment to the ultimate bearing bending moment is 79%, and the bearing capacity is 9%.
According to comparison, under the condition of meeting the requirements, the steel and high-strength grouting material composite beam is smaller in deformation, small in bearing capacity margin and less in steel waste.
Cost analysis is carried out on the two cross beams, the steel consumption of one cold-bent rectangular steel tube beam is 15kg, and the comprehensive cost is about 105 yuan; the steel quantity of the combined beam of one steel and the high-strength grouting material is 9.5kg, the high-strength grouting material is 15.5kg, and the comprehensive cost is about 85 yuan. The comprehensive cost is 20 yuan less per beam, and the saving ratio is 20%. The cost savings are considerable.
The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the utility model without departing from the scope of the technical solution of the utility model, and the technical solution of the utility model is not departing from the scope of the utility model.
Claims (6)
1. The shelf beam combining the steel and the high-strength grouting material is characterized by comprising cold-formed steel and the high-strength grouting material;
and the upper flange of the cold-formed steel is bent to form a semi-closed grouting cavity, and the high-strength grouting material is poured into the grouting cavity and then is solidified into a reinforcing beam.
2. The shelf beam in combination with high strength grout of claim 1 wherein the ends of the upper flanges are bent into the grout cavity to form a reinforcing rib in combination with the high strength grout.
3. The beam of claim 2, wherein the reinforcing ribs are provided with ventilation holes for pouring.
4. The shelf beam in combination with high strength grouting material as claimed in claim 1, wherein the side walls of the grouting cavity are provided with indentations.
5. The beam of claim 1, wherein the lower flanges of the cold-formed steel sections are bent to form double-layered steel beam flanges.
6. The shelf beam in combination with high strength grouting material of claim 1, wherein the high strength grouting material is a grade a60 grouting material having a strength greater than that of the grade a60 grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167454.5U CN220607832U (en) | 2023-08-11 | 2023-08-11 | Goods shelf beam combining steel and high-strength grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167454.5U CN220607832U (en) | 2023-08-11 | 2023-08-11 | Goods shelf beam combining steel and high-strength grouting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220607832U true CN220607832U (en) | 2024-03-19 |
Family
ID=90234051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322167454.5U Active CN220607832U (en) | 2023-08-11 | 2023-08-11 | Goods shelf beam combining steel and high-strength grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220607832U (en) |
-
2023
- 2023-08-11 CN CN202322167454.5U patent/CN220607832U/en active Active
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