CN218622933U - Steel-aluminum sandwich concrete lattice column with prestressed tendons - Google Patents
Steel-aluminum sandwich concrete lattice column with prestressed tendons Download PDFInfo
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- CN218622933U CN218622933U CN202222748060.4U CN202222748060U CN218622933U CN 218622933 U CN218622933 U CN 218622933U CN 202222748060 U CN202222748060 U CN 202222748060U CN 218622933 U CN218622933 U CN 218622933U
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Abstract
The utility model belongs to the technical field of the building, in particular to steel aluminium intermediate layer concrete lattice column with prestressing tendons, characterized by includes at least: thin-wall steel pipes, thin-wall aluminum pipes, sandwich concrete and batten strips; the thin-wall steel tube and the thin-wall aluminum tube are of concentric circle structures, the inner diameter of the thin-wall steel tube is larger than the outer diameter of the thin-wall aluminum tube, a gap is formed between the thin-wall steel tube and the thin-wall aluminum tube, interlayer concrete is filled in the gap, four prestressed tendons are uniformly arranged between the thin-wall steel tube and the thin-wall aluminum tube, the thin-wall steel tube, the thin-wall aluminum tube, the interlayer concrete and the prestressed tendons form columnar bodies, connecting plates for interconnection are arranged on the outer side of each thin-wall steel tube along the periphery of the tube wall, and the plurality of columnar bodies are interconnected through lacing bars and the connecting plates to form four quadrilateral parallel body structural bodies. The utility model discloses but wide application effectively improves durability, fire resistance and the anti-seismic performance of lattice formula post in medium-sized industrial factory building.
Description
Technical Field
The utility model belongs to the technical field of the building, in particular to steel aluminium intermediate layer concrete lattice column with prestressing tendons.
Background
In modern industrial plants for producing electrical equipment, for heavy industrial plants crane tonnage is usually more than 500t and more steel tube concrete columns or steel tube concrete lattice columns with higher bearing capacity are adopted, and for plants of medium tonnage cranes 100t-400t, steel columns or lattice type steel columns are generally adopted as gravity columns and main lateral force resisting members. The section design of the steel column is generally stably controlled, the strength of materials cannot be fully utilized, and if the stability problem is solved by reducing the slenderness ratio of the component, the section is too large, the steel distribution rate is further increased, and the manufacturing cost is too high. If the steel pipe concrete lattice column with better bearing capacity is adopted, the cross section of the column limb is usually smaller than 200mm, the cross section size is in the lower limit of the specification, concrete is not easy to pour, and the construction process is difficult to guarantee. Therefore, a lattice column which is economical, feasible and simple and convenient to construct is needed to solve the problems in the construction process of medium and heavy industrial plants.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming of above-mentioned prior art, the utility model aims to provide a steel aluminium intermediate layer concrete lattice column with prestressing tendons, the mill prefabrication rate is high, and construction speed is fast, has shortened the time limit for a project greatly, has save material simultaneously, reduces the dead weight, and bending rigidity is big, the superior performance, characteristics such as the combination is nimble.
In order to realize the purpose, the utility model discloses a technical scheme is: steel aluminium intermediate layer concrete lattice column with prestressing tendons, characterized by includes at least: the steel tube is characterized by comprising a thin-wall steel tube (1), a thin-wall aluminum tube (2), interlayer concrete (3) and batten strips (4); the thin-wall steel tube (1) and the thin-wall aluminum tube (2) are of concentric circle structures, the inner diameter of the thin-wall steel tube (1) is larger than the outer diameter of the thin-wall aluminum tube (2), a gap is formed between the thin-wall steel tube (1) and the thin-wall aluminum tube (2), interlayer concrete (3) is filled in the gap, four prestressed tendons (8) are uniformly arranged between the thin-wall steel tube (1) and the thin-wall aluminum tube (2), the thin-wall steel tube (1), the interlayer concrete (3) and the prestressed tendons (8) form columnar bodies, connecting plates (5) which are mutually connected are arranged on the outer side of each thin-wall steel tube (1) along the periphery of the tube wall, and a plurality of columnar bodies are mutually connected through lacing bars (4) and the connecting plates (5) to form four quadrilateral parallel body structures.
Flanges (6) are arranged at two ends of the columnar body, and the upper flange (6) or the lower flange (6) of the columnar body is connected with the lower flange (6) or the upper flange (6) of the other columnar body through high-strength bolts (7), so that the length of the columnar body is increased.
The cylindrical bodies are connected into a staggered M structure through lacing bars (4) and connecting plates (5), one lacing bar (4) is arranged on one side of one M, the 4 lacing bars (4) form one M to form connection, and the two M are staggered by 180 degrees.
The connecting plates (5) are distributed on the periphery of the columnar body according to 90 degrees, and the connecting plates (5) are T-shaped.
The quadrilateral parallel body structure body is connected by 4 columns, wherein two sides of the 4 columns are connected by M, and the other two sides are connected by parallel lacing bars (4) and connecting plates (5).
The lacing bar (4) can adopt angle steel or channel steel to strengthen the strength of the connecting piece.
The interlayer concrete (3) is high-strength concrete or ultrahigh-performance concrete.
The thin-wall aluminum pipe (2) is provided with T-shaped ribs on the outer side of the pipe wall, and the T-shaped ribs are used for increasing the rigidity of the thin-wall aluminum pipe (2).
The range of the spacing distance between the thin-wall steel pipe (1) and the thin-wall aluminum pipe (2) can be generally 50 to 300mm.
The number of the prestressed tendons (8) is 4-8, and the prestressed tendons are uniformly arranged between the thin-wall steel pipe (1) and the thin-wall aluminum pipe (2).
Compared with the prior art, the beneficial effects of the utility model are that:
1. saving cost
Under the action of the tonnage of a crane of 100t-400t, the bearing capacity of the steel tube concrete lattice column is high, the diameter of a calculated column limb is usually about 200mm, concrete is not easy to pour, and the construction process is difficult to guarantee. The section design of the steel column is generally stably controlled, the material strength cannot be fully applied, the section is overlarge, and the steel distribution rate is high. At the moment, the steel-aluminum sandwich concrete lattice column prevents the steel from buckling inwards by utilizing a method of filling concrete in the sandwich, and meanwhile, the high compressive strength of the internal constraint concrete can reduce the steel distribution rate of the whole column member, so that the steel distribution rate of the column member can be effectively reduced. The material performance is exerted to the maximum extent and the concrete consumption is saved.
2. Construction is convenient
The lattice column limb adopts a hollow sandwich steel pipe concrete form, so that the self weight of the structure is greatly reduced; the lattice column can be prefabricated in a factory in sections, and is easy to hoist on site; all the components are prefabricated in a factory, and the installation of the steel-aluminum sandwich steel pipe concrete lattice column can be completed on site only by welding the batten strip and the column limb and connecting the column limb and the column limb by using a flange; in addition, the inner pipe is made of aluminum, and anticorrosive materials do not need to be sprayed inside the pipe wall, so that the construction process is simplified.
3. The performance is excellent
In the prestressed steel-aluminum sandwich concrete lattice column, the sandwich concrete part is prefabricated, and the ultrahigh-performance concrete is adopted, so that the hollow rate of a steel pipe can be increased while the bearing capacity of a column limb is increased, and the self weight is further reduced; the inner pipe is made of a thin-wall aluminum pipe, and has high durability due to easy passivation.
4. Flexible combination
The hollow part can carry out secondary concrete pouring on the column limb according to different load conditions and use requirements, so that the bearing capacity and the rigidity are further improved. As the strength storage, the purposes of crane upgrading, workshop reconstruction and the like in the using process can be achieved by pouring the concrete of the hollow part for the second time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the thin-walled aluminum tube with T-shaped ribs of the present invention;
FIG. 3 is a schematic view of the connection of the present invention;
fig. 4 is a schematic cross-sectional view of the present invention.
The reference numerals explain: 1. a thin-walled steel pipe; 2. a thin-walled aluminum tube; 3. interlayer concrete; 4. lacing strips; 5. a connecting plate; 6. a flange; 7. a high-strength bolt; 8. and (4) prestressed tendons.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings and examples.
Example 1
As shown in fig. 1 to 4, the steel-aluminum sandwich concrete lattice column with prestressed tendons is characterized by at least comprising: the steel tube comprises a thin-wall steel tube 1, a thin-wall aluminum tube 2, interlayer concrete 3 and batten strips 4; the thin-wall steel tube 1 and the thin-wall aluminum tube 2 are concentric structures, the inner diameter of the thin-wall steel tube 1 is larger than the outer diameter of the thin-wall aluminum tube 2, a gap is formed between the thin-wall steel tube 1 and the thin-wall aluminum tube 2, interlayer concrete 3,4 prestressed tendons 8 are uniformly filled in the gap and are uniformly arranged between the thin-wall steel tube 1 and the thin-wall aluminum tube 2, so that the thin-wall steel tube 1, the thin-wall aluminum tube 2, the interlayer concrete 3 and the prestressed tendons 8 form columnar bodies, connecting plates 5 for mutual connection are arranged on the outer side of each thin-wall steel tube 1 along the periphery of the tube wall, and a plurality of columnar bodies are connected with one another through lacing bars 4 and the connecting plates 5 to form four quadrilateral parallel body structures; flanges 6 are arranged at two ends of the columnar body, and the upper flange 6 or the lower flange 6 of the columnar body is connected with the lower flange 6 or the upper flange 6 of the other columnar body through a high-strength bolt 7, so that the length of the columnar body is increased.
The columnar bodies are connected through the lacing bars 4 and the connecting plates 5 to form an M structure which is staggered with each other, the edge of one M is formed by the lacing bars 4,4 lacing bars 4 to form the M structure which is connected, and the two M structures are staggered with each other by 180 degrees. The connecting plates 5 are distributed on the periphery of the columnar body according to 90 degrees, and the connecting plates 5 are T-shaped.
The double parallel body structure body is connected by 4 columns, wherein two sides of the 4 columns are connected by M, and the other two sides are connected by parallel lacing bars 4 and connecting plates 5.
The utility model mainly comprises a prefabricated steel-aluminum interlayer concrete column limb and a batten strip 4 between the column limbs. The outer pipe of the prefabricated steel-aluminum sandwich concrete column limb is a thin-wall steel pipe 1, the inner pipe is a thin-wall aluminum pipe 2 with T-shaped ribs, and sandwich concrete 3 between the inner pipe and the outer pipe of the column limb adopts high-strength concrete or ultrahigh-performance concrete. The prefabricated column limbs are connected through lacing bars 4; the prefabricated column limbs on the upper layer and the lower layer are connected through flanges 6.
Particularly, the thin-wall steel pipe 1 and the thin-wall aluminum pipe 2 are generally round steel pipes, wherein T-shaped ribs are arranged on the outer side of the pipe wall of the thin-wall aluminum pipe 2 and used for increasing the rigidity of the thin-wall aluminum pipe 2; the distance range between the thin-wall steel tube 1 and the thin-wall aluminum tube 2 can be generally 50 to 300mm, the prefabricated interlayer concrete 3 can adopt different types of concrete according to the size of the gap between the inner wall and the outer wall, when the air core rate is small, the gap between the thin-wall steel tube 1 and the thin-wall aluminum tube 2 is large, the pouring is easy to ensure to be compact, and high-strength concrete or fine aggregate high-strength concrete can be selected; when the hollow rate is large, the clearance between the thin-wall steel pipe 1 and the thin-wall aluminum pipe 2 is small, and self-compacting concrete or high-strength fiber concrete or high-strength polypropylene fiber concrete can be adopted.
As shown in fig. 1, the connection plate 5 of the present invention is welded to the outside of the thin-walled steel pipe 1 at the prefabrication stage, and the batten 4 is welded to the construction site to connect the column legs to each other to form the lattice column. Optionally, the lacing strip 4 may be made of angle steel or channel steel.
As shown in fig. 3, in order to facilitate the connection of the upper and lower column limbs, a steel structure connecting flange 6 is welded at the end of the thin-wall steel pipe 1, and the flange 6 is fixed by a high-strength bolt 7.
Example 2
Different from the embodiment 1, 8 prestressed tendons 8,8 are uniformly arranged between the thin-wall steel pipe 1 and the thin-wall aluminum pipe 2.
Example 3
Different from the embodiment 1, 6 prestressed tendons 8,6 are uniformly arranged between the thin-wall steel pipe 1 and the thin-wall aluminum pipe 2.
The tendons 8 are determined according to the needs and the process, and will not be further described.
Claims (10)
1. Steel aluminium intermediate layer concrete lattice column with prestressing tendons, characterized by includes at least: the steel tube is characterized by comprising a thin-wall steel tube (1), a thin-wall aluminum tube (2), interlayer concrete (3) and batten strips (4); the thin-wall steel tube (1) and the thin-wall aluminum tube (2) are of concentric circle structures, the inner diameter of the thin-wall steel tube (1) is larger than the outer diameter of the thin-wall aluminum tube (2), a gap is formed between the thin-wall steel tube (1) and the thin-wall aluminum tube (2), interlayer concrete (3) is filled in the gap, four prestressed tendons (8) are uniformly arranged between the thin-wall steel tube (1) and the thin-wall aluminum tube (2), the thin-wall steel tube (1), the interlayer concrete (3) and the prestressed tendons (8) form columnar bodies, connecting plates (5) which are mutually connected are arranged on the outer side of each thin-wall steel tube (1) along the periphery of the tube wall, and a plurality of columnar bodies are mutually connected through lacing bars (4) and the connecting plates (5) to form four quadrilateral parallel body structures.
2. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: flanges (6) are arranged at two ends of the columnar body, and the upper flange (6) or the lower flange (6) of the columnar body is connected with the lower flange (6) or the upper flange (6) of the other columnar body through high-strength bolts (7), so that the length of the columnar body is increased.
3. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the cylindrical bodies are connected into a staggered M structure through lacing bars (4) and connecting plates (5), one lacing bar (4) is arranged on one side of one M, 4 lacing bars (4) form one M to be connected, and two Ms are staggered by 180 degrees.
4. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the connecting plates (5) are distributed on the periphery of the columnar body according to 90 degrees, and the connecting plates (5) are T-shaped.
5. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the quadrilateral parallel body structure body is connected by 4 columnar bodies, wherein two side-by-side edges of the 4 columnar bodies are connected by M, and the other two sides are connected by parallel lacing bars (4) and connecting plates (5).
6. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the lacing bar (4) can adopt angle steel or channel steel to strengthen the strength of the connecting piece.
7. A steel-aluminium sandwich concrete lattice column with pre-stressed tendons according to claim 1, characterised in that: the interlayer concrete (3) is high-strength concrete or ultrahigh-performance concrete.
8. A steel-aluminium sandwich concrete lattice column with pre-stressed tendons according to claim 1, characterised in that: the thin-wall aluminum pipe (2) is provided with T-shaped ribs on the outer side of the pipe wall, and the T-shaped ribs are used for increasing the rigidity of the thin-wall aluminum pipe (2).
9. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the range of the spacing distance between the thin-wall steel pipe (1) and the thin-wall aluminum pipe (2) can be generally 50 to 300mm.
10. A steel aluminium laminated concrete lattice column with prestressed tendons as claimed in claim 1, characterized by: the number of the prestressed tendons (8) is 4-8, and the prestressed tendons are uniformly arranged between the thin-wall steel pipe (1) and the thin-wall aluminum pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748060.4U CN218622933U (en) | 2022-10-19 | 2022-10-19 | Steel-aluminum sandwich concrete lattice column with prestressed tendons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222748060.4U CN218622933U (en) | 2022-10-19 | 2022-10-19 | Steel-aluminum sandwich concrete lattice column with prestressed tendons |
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| Publication Number | Publication Date |
|---|---|
| CN218622933U true CN218622933U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222748060.4U Active CN218622933U (en) | 2022-10-19 | 2022-10-19 | Steel-aluminum sandwich concrete lattice column with prestressed tendons |
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| CN (1) | CN218622933U (en) |
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- 2022-10-19 CN CN202222748060.4U patent/CN218622933U/en active Active
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