Fabricated steel pipe concrete column reinforcing structure with tie bars
By designing a special-shaped combination of tie-bar structure inside the steel pipe concrete column, the problem of local buckling of steel pipes under low circumferential reciprocating loads is solved, the seismic performance and bearing capacity are improved, stiffness degradation is delayed, and safety is enhanced.
Patent Information
- Application Number
- CN202421652457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Steel pipe concrete columns are prone to local buckling under low circumferential reciprocating loads, resulting in weakening of seismic resistance and difficulty in repair.
A special-shaped combination of tie-bar assembly structure is designed inside the concrete column rectangular steel pipe, including transverse tie-bars, longitudinal tie-bars and arc-shaped convex rings, combined with the staggered supporting steel sleeve plates, forming a unified cage structure.
The buckling and ductility of concrete column rectangular steel pipes is improved, the seismic resistance under low-cycle reciprocating loads is enhanced, the bearing capacity is improved, the stiffness degradation is delayed, and the safety of use is improved.
Smart Images
Figure CN222810515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel tube concrete column construction, and more specifically to an assembled steel tube concrete column reinforcement structure with tie bars. Background Art
[0002] Steel tube concrete column is a commonly used structural member, mainly used in buildings and bridges. It consists of steel tube as the outer enclosure and concrete as the inner filling. Steel tube concrete column has good bearing capacity and seismic performance, so it is widely used in engineering. Steel tube concrete column can be divided into a variety of structural forms, such as round, square, rectangular, etc. Each structural form has its applicable occasions and advantages. Steel tube concrete column has the following advantages: 1. Strong bearing capacity: Steel tube concrete column is composed of steel tube and concrete. Steel tube can withstand large pressure and tension, while concrete can provide uniform support force, so steel tube concrete column has strong bearing capacity. 2. Good seismic performance: Because steel tube concrete column has good bearing capacity and seismic performance, it is widely used in earthquake areas. 3. Convenient construction: The construction of steel tube concrete column is relatively simple, and it can be produced by prefabricated components to improve the progress and quality of the project. 4. Good durability: Because concrete can provide a good protective layer to prevent steel tube from being corroded by air, moisture, etc., steel tube concrete column has good durability.
[0003] In the actual construction process, due to the special structure of steel tube concrete columns, once damaged, it is difficult to repair. Therefore, when designing, it is necessary to design a new prefabricated reinforcement structure to address the problems that the steel tube of the steel tube concrete has poor restraint effect on the concrete and the steel tube is prone to local buckling under low-cycle reciprocating loads, which weakens the seismic performance. Utility Model Content
[0004] The purpose of the utility model is to provide an assembled steel tube concrete column reinforcement structure with tie bars, which realizes the improvement of the ultimate bearing capacity, ductility and stiffness of the steel tube concrete column frame structure system by designing a tie bar assembled structure with a special shape combination inside the steel tube concrete column.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A prefabricated steel tube concrete column reinforcement structure with tie bars, comprising a rectangular steel tube for a concrete column, wherein a plurality of groups of reinforcement components equidistantly spaced up and down are arranged inside the rectangular steel tube for the concrete column, wherein each group of reinforcement components comprises a plurality of equally spaced transverse tie bars and a plurality of equally spaced longitudinal tie bars, wherein a semicircular arc-shaped raised ring is processed at the intersection of the transverse tie bars and the longitudinal tie bars, wherein adjacent arc-shaped raised rings on the transverse tie bars are staggered up and down, and a plurality of supporting steel sleeves are staggered from front to back between the adjacent longitudinal tie bars, wherein the surfaces of both ends of the supporting steel sleeves are processed with through holes and are sleeved on the adjacent longitudinal tie bars through the through holes.
[0007] As a further optimization of this solution, the supporting steel sleeve is arranged in the middle position of adjacent transverse tie bars.
[0008] As a further optimization of this solution, both ends of the transverse tie bars and the longitudinal tie bars are welded to the inner side of the rectangular steel tube of the concrete column, the inner side of the arc-shaped raised ring is welded to the longitudinal tie bars, and the inner side of the through hole of the supporting steel sleeve is welded to the longitudinal tie bars.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0010] The utility model forms a unified cage structure by arranging a plurality of assembled transverse tie bars and longitudinal tie bar structures inside the rectangular steel pipe of the concrete column, and mutually constraining the staggered arc-shaped raised rings and supporting steel sleeves, thereby improving the buckling resistance and ductility of the rectangular steel pipe of the concrete column, improving the seismic performance of the steel pipe under low-cycle reciprocating loads, and having a higher bearing capacity. Through the synergistic effect between the transverse tie bars and the longitudinal tie bars and the poured concrete, the stiffness degradation is delayed, and the safety of the concrete column steel pipe is further improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the reinforced structure of the assembled steel tube concrete column with tie bars of the utility model (part of the steel tube shell is removed);
[0012] Figure 2 This is a schematic diagram of the structure of the welding point positions of the components of the utility model;
[0013] In the figure: 1. Steel pipe; 2. Longitudinal tie bars; 3. Transverse tie bars; 4. Arc-shaped raised ring; 5. Support steel sleeve plate; 6. Welding point. DETAILED DESCRIPTION
[0014] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific diagrams.
[0015] In order to solve the problem that the existing steel tube concrete has poor restraining effect on concrete, the steel tube is prone to local buckling under low-cycle reciprocating loads, which weakens the seismic performance, such as Figure 1 As shown, the present application includes a concrete column rectangular steel tube 1, wherein a plurality of groups of reinforcement components equidistantly spaced up and down are arranged inside the concrete column rectangular steel tube 1, wherein each group of reinforcement components includes a plurality of equidistantly spaced transverse tie bars 3 and a plurality of equidistantly spaced longitudinal tie bars 2, wherein a semicircular arc-shaped raised ring 4 is processed at the intersection of the transverse tie bars 3 and the longitudinal tie bars 2, wherein adjacent arc-shaped raised rings 4 on the transverse tie bars 3 are staggered up and down, and a plurality of support steel sleeves 5 are staggered from front to back between adjacent longitudinal tie bars 2, wherein the surfaces of both ends of the support steel sleeves 5 are processed with through holes and are sleeved on the adjacent longitudinal tie bars 2 through the through holes, and the support steel sleeves 5 are arranged at the middle position of the adjacent transverse tie bars 3;
[0016] like Figure 2 As shown, the welding points 6 are distributed between the two ends of the transverse tie bars 3 and the longitudinal tie bars 2 and the inner side of the rectangular steel tube 1 of the concrete column, between the inner side of the arc-shaped raised ring 4 and the longitudinal tie bars 2, and between the inner side of the through hole of the supporting steel sleeve plate 5 and the longitudinal tie bars 2;
[0017] Specifically, in the early stage, transverse tie bars 3, longitudinal tie bars 2, supporting steel sleeves 5 and other components are arranged inside the rectangular steel pipe 1 of the concrete column to achieve the reinforcement effect. The specific adjacent staggered arc-shaped raised rings 4 can limit the transverse tie bars 3 up and down, left and right. At the same time, the supporting steel sleeves 5 can limit the two adjacent longitudinal tie bars 2 up and down, left and right, forming a unified cage structure with each other. Combined with the pouring of concrete, the seismic performance of the steel pipe under low-cycle reciprocating loads is improved, and the bearing capacity is relatively high.
[0018] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0019] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An assembled reinforced structure of a steel tube concrete column with tie bars, comprising a rectangular steel tube for a concrete column, characterized in that: A plurality of groups of reinforcement components equidistantly spaced up and down are arranged inside the rectangular steel tube of the concrete column, wherein each group of reinforcement components includes a plurality of transverse tie bars equidistantly spaced up and down and a plurality of longitudinal tie bars equidistantly spaced up and down, and a semicircular arc-shaped raised ring is processed at the intersection of the transverse tie bars and the longitudinal tie bars, wherein adjacent arc-shaped raised rings on the transverse tie bars are staggered up and down, and a plurality of supporting steel sleeves are staggered from front to back between the adjacent longitudinal tie bars, and through holes are processed on the surfaces of both ends of the supporting steel sleeves and are mounted on the adjacent longitudinal tie bars through the through holes.
2. The assembled reinforced structure of concrete-filled steel tube columns with tie bars according to claim 1 is characterized in that: The supporting steel sleeve is arranged at the middle position of adjacent transverse tie bars.
3. The assembled reinforced structure of concrete-filled steel tube columns with tie bars according to claim 2 is characterized in that: Both ends of the transverse and longitudinal tie bars are welded to the inner side of the rectangular steel pipe of the concrete column, the inner side of the arc-shaped raised ring is welded to the longitudinal tie bar, and the inner side of the through hole of the supporting steel sleeve is welded to the longitudinal tie bar.