Column foot plate structure for building reconstruction and extension
By setting fixed anchor bolts, anchor bolt pads, reinforcing plates, and fine stone concrete in the column base plate structure, combined with pouring plain concrete and concrete concealed columns, the problem of long-term pressure deformation and instability of the column base plate during building renovation and expansion was solved, thus improving the stability and safety of the building.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU HOUSES DEV CONSTR
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-02
AI Technical Summary
The existing column base plate structure suffers from long-term compression deformation and instability during building renovation and expansion, affecting building safety.
By installing anchor bolts, column base plates, anchor plates, reinforcing plates, and fine aggregate concrete between the steel column and the foundation, and combining this with pouring plain concrete and concrete concealed columns on the outside of the column base plates and steel columns, galvanized steel plates and anchor bars are further fixed on the steel column to form a stable connection structure.
This effectively prevents deformation of the column base plate due to long-term pressure, thus improving the stability of the column base and the safety of the building.
Smart Images
Figure CN224314649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building renovation and expansion technology, specifically to a column base plate structure for building renovation and expansion. Background Technology
[0002] In building renovation and expansion projects, the design of column base plate structure is crucial, as it directly relates to the stability, load-bearing capacity, and durability of the entire structure. Column base plate is an important component connecting steel columns and foundations, and it is responsible for transferring the load on the steel columns to the foundation. In renovation and expansion projects, due to the limitations of the original structure and the requirements of the new loads, the design of column base plate needs to be more refined and reasonable.
[0003] While existing column base slab structures generally meet the requirements, they still have certain shortcomings. Existing column base slab structures may deform under long-term pressure, and because they are fixed using anchor bolts and concrete, the column bases are prone to instability, affecting building safety. Therefore, this invention proposes a new column base slab structure for building renovation and expansion. Utility Model Content
[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0005] A column base slab structure for the renovation and expansion of a building includes a foundation and a column base slab. A shear-resistant member is fixedly installed at the bottom of the column base slab, and the bottom end of the shear-resistant member is located in the foundation. The column base slab is installed on the foundation via a connecting assembly. Fine aggregate concrete is poured between the foundation and the column base slab. A steel column is fixedly installed at the top of the column base slab, and several reinforcing plates are fixedly installed between the steel column and the column base slab.
[0006] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, the connecting component includes a fixed anchor bolt with an L-shaped bottom end, the column base plate is provided with a plurality of fixed anchor bolts, the bottom end of the fixed anchor bolt is embedded in a slot on the bearing platform, the top end of the fixed anchor bolt passes through the column base plate and is threadedly connected to a nut, and an anchor bolt washer is provided between the nut and the column base plate.
[0007] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, plain concrete is poured on the foundation, and a concrete concealed column is poured on the outside of the steel column, and the concrete concealed column is fixedly connected to the plain concrete.
[0008] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, the top of the concrete concealed column is embedded with steel wire concrete, and the steel wire concrete is fixedly connected to the steel column, and the steel column is provided with reserved butt welds.
[0009] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, galvanized steel plates are fitted on both sides of the steel column, and a concrete beam is fixedly connected between the two sets of galvanized steel plates.
[0010] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, anchor bars are embedded in the slots opened in the galvanized steel plate, and the anchor bars penetrate the concrete beam.
[0011] As a preferred embodiment of the column base plate structure for the renovation and expansion of a building according to this utility model, wherein: a slab reinforcement is embedded in a slot opened on one side of the concrete beam, a first longitudinal reinforcement is embedded in a slot opened on one side of the concrete beam, and a second longitudinal reinforcement is embedded in a slot opened at the top of the concrete beam.
[0012] Compared with existing technologies:
[0013] By installing anchor bolts, column base plates, anchor plates, reinforcing plates, and fine aggregate concrete between the steel column and the foundation, deformation of the column base plates due to long-term pressure can be prevented. At the same time, by pouring plain concrete and concealed concrete columns on the outside of the column base plates and steel columns, the stability of the column base can be initially improved. Then, fixing galvanized steel plates and anchor bars to the steel column can ensure the stability of the column base, thereby improving the safety of the building. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the column base of this utility model;
[0015] Figure 2 This is a schematic diagram of the concrete beam structure in this utility model;
[0016] Figure 3 This is a top view of the anchor bar's position and structure in this utility model;
[0017] Figure 4 This is a schematic diagram showing the location and structure of the reinforcing bars in the plate of this utility model;
[0018] Figure 5 This is a schematic diagram showing the position of the first longitudinal rib of this utility model;
[0019] Figure 6 This is a schematic diagram showing the position of the second longitudinal rib in this utility model;
[0020] Figure 7 This is a top view of the central column base plate of this utility model;
[0021] Figure 8 This is a schematic diagram of the structure of the fixed anchor rod in this utility model;
[0022] Figure 9 This is a schematic diagram of the stiffening plate in this utility model;
[0023] Figure 10 This is a top view of the shear-resistant component in this utility model.
[0024] Figure 11 This is a side view of the shear-resistant component in this utility model.
[0025] In the diagram: 1. Foundation; 2. Fixed anchor bolt; 3. Column base plate; 4. Steel column; 5. Anchor bolt pad; 6. Reinforcing plate; 7. Concrete concealed column; 8. Fine aggregate concrete; 9. Plain concrete; 10. Steel wire concrete; 11. Shear member; 12. Galvanized steel plate; 13. Concrete beam; 14. Anchor bar; 15. Slab reinforcement; 16. First longitudinal reinforcement; 17. Second longitudinal reinforcement; 18. Reserved butt weld. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0027] This utility model provides a column base plate structure for the renovation and expansion of building structures. Please refer to [link / reference]. Figures 1-11 The system includes a foundation 1 and a column base plate 3. A shear member 11 is fixedly installed at the bottom of the column base plate 3, and the bottom end of the shear member 11 is located in the foundation 1. The column base plate 3 is installed on the foundation 1 through a connecting assembly. Fine stone concrete 8 is poured between the foundation 1 and the column base plate 3. A steel column 4 is fixedly installed at the top of the column base plate 3, and several reinforcing plates 6 are fixedly installed between the steel column 4 and the column base plate 3.
[0028] The connecting component includes a fixed anchor 2 with an L-shaped bottom end. Several fixed anchors 2 are provided on the column base plate 3. The bottom end of the fixed anchor 2 is embedded in a slot on the bearing 1. The top end of the fixed anchor 2 passes through the column base plate 3 and is threaded to a nut. An anchor pad 5 is provided between the nut and the column base plate 3.
[0029] Plain concrete 9 is poured on the foundation 1, and concrete hidden column 7 is poured on the outside of the steel column 4. The concrete hidden column 7 is fixedly connected to the plain concrete 9. Steel wire concrete 10 is embedded in the top of the concrete hidden column 7 and is fixedly connected to the steel column 4. A reserved butt weld 18 is provided on the steel column 4.
[0030] Galvanized steel plates 12 are fitted on both sides of the steel column 4. A concrete beam 13 is fixedly connected between the two sets of galvanized steel plates 12. Anchor bars 14 are embedded in the slots opened in the galvanized steel plates 12 and penetrate through the concrete beam 13. Plate bars 15 are embedded in the slots opened on one side of the concrete beam 13. A first longitudinal bar 16 is embedded in the slots opened on one side of the concrete beam 13. A second longitudinal bar 17 is embedded in the slots opened at the top of the concrete beam 13. After the column top is roughened, a special concrete interface treatment agent is applied.
[0031] In practical use, the specific operating steps for those skilled in the art are as follows:
[0032] First, shear-resistant members 11 are fixed to the bottom of the column base plate 3. Then, the column base plate 3 is fixed to the foundation 1 using anchor bolts 2. Finally, fine stone concrete 8 is poured between the column base plate 3 and the foundation 1 for reinforcement and sealing. Then, the steel column 4 is reinforced using stiffening plates 6. This can prevent the column base plate 3 from deforming due to long-term pressure. At the same time, plain concrete 9 and concrete concealed columns 7 are poured on the outside of the column base plate 3 and the steel column 4, which can initially improve the stability of the column base. After that, galvanized steel plates 12 and anchor bars 14 are fixed on the steel column 4, and concrete beams 13 are set up to further ensure the stability of the column base, thereby improving the safety of the building.
[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A column base plate structure for the renovation and expansion of a building, comprising a foundation (1) and column base plate components (3), characterized in that, The bottom of the column base plate (3) is fixedly installed with a shear member (11), and the bottom end of the shear member (11) is located in the foundation (1). The column base plate (3) is installed on the foundation (1) through a connecting assembly. Fine stone concrete (8) is poured between the foundation (1) and the column base plate (3). A steel column (4) is fixedly installed on the top of the column base plate (3), and several reinforcing plates (6) are fixedly installed between the steel column (4) and the column base plate (3).
2. The column base plate structure for the renovation and expansion of a building according to claim 1, characterized in that, The connecting assembly includes a fixed anchor bolt (2) with its bottom end set in an L shape. The column base plate (3) is provided with a plurality of fixed anchor bolts (2). The bottom end of the fixed anchor bolt (2) is embedded in a slot on the bearing platform (1). The top end of the fixed anchor bolt (2) passes through the column base plate (3) and is threadedly connected to a nut. An anchor bolt washer (5) is provided between the nut and the column base plate (3).
3. The column base plate structure for the renovation and expansion of a building according to claim 1, characterized in that, Plain concrete (9) is poured on the foundation (1), and a concrete hidden column (7) is poured on the outside of the steel column (4), and the concrete hidden column (7) is fixedly connected to the plain concrete (9).
4. The column base plate structure for the renovation and expansion of a building according to claim 3, characterized in that, The top of the concrete column (7) is embedded with steel wire concrete (10), and the steel wire concrete (10) is fixedly connected to the steel column (4). The steel column (4) is provided with a reserved butt weld (18).
5. The column base plate structure for the renovation and expansion of a building according to claim 1, characterized in that, Galvanized steel plates (12) are fitted on both sides of the steel column (4), and a concrete beam (13) is fixedly connected between the two sets of galvanized steel plates (12).
6. The column base plate structure for the renovation and expansion of a building according to claim 5, characterized in that, Anchor bars (14) are embedded in the slots of the galvanized steel plate (12), and the anchor bars (14) penetrate the concrete beam (13).
7. The column base plate structure for the renovation and expansion of a building according to claim 5, characterized in that, A slab reinforcement (15) is embedded in a slot on one side of the concrete beam (13), a first longitudinal reinforcement (16) is embedded in a slot on one side of the concrete beam (13), and a second longitudinal reinforcement (17) is embedded in a slot on the top of the concrete beam (13).