Column foot node structure of concrete filled steel tubular column for household garbage incineration power generation

Abstract

The utility model discloses a concrete filled steel tubular column base node structure for household garbage incineration power generation, which comprises a foundation, a foundation raft plate fixedly mounted at the top of the foundation, a positioning mounting groove formed in the middle of the foundation raft plate, a foundation column fixedly mounted in the positioning mounting groove, and a fixed column body arranged at the top of the foundation column. A reinforced concrete hidden beam is arranged in the middle of the foundation raft, hidden beam stirrups are installed on the outer side of the reinforced concrete hidden beam, and a plurality of steel corbels for supporting the reinforced concrete hidden beam are installed in the foundation raft. The bearing capacity, the anti-seismic performance and the durability of the structure are improved, the built-in anti-bending steel corbel transition section is adopted to ensure the cooperative work of the beam end combination section, the combination section resists the bending moment transmitted by the lower end of the column, and the burying depth of a conventional column foot is optimized.

Description

Technical Field

[0001] The utility model relates to the field of concrete-filled steel tubes, in particular to a column foot node structure of a concrete-filled steel tube column for domestic waste incineration power generation. Background Technique

[0002] Urban domestic waste is one of the main environmental problems faced by China at present. With the rapid economic development and the large-scale substantial increase in the urban population, the output of domestic waste has been increasing year by year. If the garbage is not properly treated, it will cause great harm to the environment. The domestic waste incineration technology further strengthens the treatment of harmful gases generated by incineration. By reasonably selecting advanced incineration equipment, reasonably organizing the combustion conditions, and reasonably selecting the flue gas purification treatment process, the emissions of harmful gases generated by garbage incineration can be greatly reduced. The garbage leachate can be sprayed into the furnace for high-temperature decomposition, and the situation of polluting groundwater will not occur. The main workshop of domestic waste incineration power generation is a single-story or multi-story industrial workshop, the height of the main structure is about 35-40 meters, the workshop span is relatively large (about 20 meters - 40 meters), the electrical equipment in the main workshop is large in volume, diverse in layout forms, high in process precision, and dense in pipelines with complex paths. At the same time, if the structure is located in a high-intensity fortification area, in view of the large span, heavy load, vertical and horizontal irregularities, complex stress and other situations, using a conventional reinforced concrete structure will inevitably lead to a series of problems such as too large cross-sectional dimensions of structural members, reduction of the effective internal space of the building, and high cost. Content of the Utility Model

[0003] The purpose of the utility model is to provide a column foot node structure of a concrete-filled steel tube column for domestic waste incineration power generation to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A column foot node structure of a concrete-filled steel tube column for domestic waste incineration power generation, including a foundation, on the top of the foundation, a foundation raft is fixedly installed, a positioning installation groove is arranged in the middle of the foundation raft, a foundation column is fixedly installed inside the positioning installation groove, a fixed column body is arranged on the top of the foundation column, a reinforced concrete concealed beam is arranged in the middle of the foundation raft, shear studs are arranged outside the reinforced concrete concealed beam, and a number of pairs of steel corbels supported by the reinforced concrete concealed beam are installed inside the foundation raft. The fixed column body includes a column foot bottom plate, a concrete-filled steel tube column body fixed on the top of the column foot bottom plate, and a number of anchor bolts threadedly connected to the surface of the column foot bottom plate. A hook is arranged at the bottom of the anchor bolt.

[0005] Preferably, shear studs are arranged between the reinforced concrete concealed beam and the steel corbel, and the reinforced concrete concealed beam and the steel corbel are fixed by the shear studs.

[0006] Preferably, fixing nuts are installed at both the connection between the anchor bolts and the top of the column base plate and the connection between the anchor bolts and the bottom of the column base plate.

[0007] Preferably, a reinforcing ring is fixedly installed on the outer side of the concrete-filled steel tube column body, and a plurality of stiffeners are fixedly connected to the top of the column base plate, and the stiffeners are connected to the surface of the concrete-filled steel tube column body.

[0008] Preferably, a plurality of flat head stud bolts are fixedly connected to the surface of the concrete-filled steel tube column body.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The present utility model uses the concrete-filled steel tube column method, that is, the steel-concrete composite method. Compared with the traditional reinforced concrete structure, the steel-concrete composite structure reduces the cross-sectional size of components, reduces the self-weight of the structure, reduces the seismic response, increases the effective space, reduces the foundation cost, and increases the ductility and durability of components and structures. Therefore, using steel-concrete composite structure components can significantly improve the bearing capacity, seismic performance, and durability of the structure within a reasonable cost range. An internal bending steel corbel transition section is used to ensure the coordinated work of the combined section at the beam end. The combined section resists the bending moment transmitted from the lower end of the column, and the buried depth of the conventional column base is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a structural schematic diagram of the present utility model;

[0012] Figure 2 is a structural diagram of the fixed column body of the present utility model;

[0013] Figure 3 is a process flow diagram of the present utility model.

[0014] In the figure: 1, foundation; 2, foundation raft; 3, positioning installation groove; 4, foundation column; 5, fixed column body; 6, reinforced concrete hidden beam; 7, steel corbel; 8, shear stud; 9, column base plate; 10, concrete-filled steel tube column body; 11, anchor bolt; 12, fixing nut; 13, stiffener; 14, reinforcing ring; 15, flat head stud bolt; 16, hook; 17, hidden beam stirrup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1-3 ,

[0017] Embodiment 1:

[0018] The utility model provides a steel tube concrete column footing joint structure for domestic waste incineration power generation, which includes a foundation 1. A foundation raft 2 is fixedly installed at the top of the foundation 1. A positioning installation groove 3 is provided in the middle of the foundation raft 2. A foundation column 4 is fixedly installed inside the positioning installation groove 3. A fixed column body 5 is provided at the top of the foundation column 4. A reinforced concrete hidden beam 6 is provided in the middle of the foundation raft 2. Stirrups for hidden beam 17 are installed on the outside of the reinforced concrete hidden beam 6. And a number of steel corbels 7 supported by the reinforced concrete hidden beam 6 are installed inside the foundation raft 2. The fixed column body 5 includes a column base plate 9, a steel tube concrete column body 10 fixed on the top of the column base plate 9, and a number of anchor bolts 11 threadedly connected to the surface of the column base plate 9. A hook 16 is provided at the bottom of the anchor bolt 11. Shear studs 8 are provided between the reinforced concrete hidden beam 6 and the steel corbel 7. And the reinforced concrete hidden beam 6 and the steel corbel 7 are fixed by the shear studs 8;

[0019] Refer to Figures 1-2 , fixing nuts 12 are installed at both the connection between the anchor bolt 11 and the top of the column base plate 9 and the connection between the anchor bolt 11 and the bottom of the column base plate 9. A strengthening ring 14 is fixedly installed on the outside of the steel tube concrete column body 10. A number of stiffening ribs 13 are fixedly connected to the top of the column base plate 9. The stiffening ribs 13 are connected to the surface of the steel tube concrete column body 10. A number of flat head studs 15 are fixedly connected to the surface of the steel tube concrete column body 10. The reinforced concrete hidden beam 6 is installed inside the foundation raft 2 and fixed by the steel corbel 7. The connection method of the hidden beam is adopted, and an internal bending-resistant steel corbel transition section is used to ensure the coordinated work of the beam end combined section.

[0020] Embodiment 2:

[0021] The utility model provides a steel tube concrete column footing joint structure for domestic waste incineration power generation, which includes a foundation 1. A foundation raft 2 is fixedly installed at the top of the foundation 1. A positioning installation groove 3 is provided in the middle of the foundation raft 2. A foundation column 4 is fixedly installed inside the positioning installation groove 3. A fixed column body 5 is provided at the top of the foundation column 4. A reinforced concrete hidden beam 6 is provided in the middle of the foundation raft 2. Stirrups for hidden beam 17 are installed on the outside of the reinforced concrete hidden beam 6. And a number of steel corbels 7 supported by the reinforced concrete hidden beam 6 are installed inside the foundation raft 2. The fixed column body 5 includes a column base plate 9, a steel tube concrete column body 10 fixed on the top of the column base plate 9, and a number of anchor bolts 11 threadedly connected to the surface of the column base plate 9. A hook 16 is provided at the bottom of the anchor bolt 11.

[0022] Shear studs 8 are provided between the reinforced concrete concealed beam 6 and the steel corbel 7, and the reinforced concrete concealed beam 6 and the steel corbel 7 are fixed by the shear studs 8. Fixed nuts 12 are installed at both the connection between the anchor bolt 11 and the top of the column base plate 9 and the connection between the anchor bolt 11 and the bottom of the column base plate 9. A stiffening ring 14 is fixedly installed on the outer side of the concrete-filled steel tube column body 10. A number of stiffeners 13 are fixedly connected to the top of the column base plate 9, and the stiffeners 13 are connected to the surface of the concrete-filled steel tube column body 10. A number of flat head studs 15 are fixedly connected to the surface of the concrete-filled steel tube column body 10.

[0023] Embodiment 3:

[0024] The utility model provides a column base node structure of a concrete-filled steel tube column for domestic waste incineration power generation, which includes a foundation 1. A foundation raft 2 is fixedly installed on the top of the foundation 1. A positioning installation groove 3 is provided in the middle of the foundation raft 2. A foundation column 4 is fixedly installed inside the positioning installation groove 3. A fixed column body 5 is provided at the top of the foundation column 4. A reinforced concrete concealed beam 6 is provided in the middle of the foundation raft 2. Stirrups 17 for the concealed beam are installed on the outer side of the reinforced concrete concealed beam 6. And a number of steel corbels 7 supported by the reinforced concrete concealed beam 6 are installed inside the foundation raft 2. The fixed column body 5 includes a column base plate 9, a concrete-filled steel tube column body 10 fixed on the top of the column base plate 9, and a number of anchor bolts 11 threadedly connected to the surface of the column base plate 9. A hook 16 is provided at the bottom of the anchor bolt 11. Shear studs 8 are provided between the reinforced concrete concealed beam 6 and the steel corbel 7, and the reinforced concrete concealed beam 6 and the steel corbel 7 are fixed by the shear studs 8. Fixed nuts 12 are installed at both the connection between the anchor bolt 11 and the top of the column base plate 9 and the connection between the anchor bolt 11 and the bottom of the column base plate 9. A stiffening ring 14 is fixedly installed on the outer side of the concrete-filled steel tube column body 10. A number of stiffeners 13 are fixedly connected to the top of the column base plate 9, and the stiffeners 13 are connected to the surface of the concrete-filled steel tube column body 10. A number of flat head studs 15 are fixedly connected to the surface of the concrete-filled steel tube column body 10.

[0025] During specific use, for the concrete-filled steel tubular column base joint structure of the domestic waste incineration power generation of the present utility model, a reinforced concrete concealed beam 6 is installed inside the foundation raft 2 and fixed by a steel corbel 7. And in the construction process, it successively goes through construction area positioning, foundation raft production, core processing and installation, column pre-installation, spatial positioning, construction re-measurement, pouring and fixed column installation to ensure the stable installation and fixation of the joints of the concrete-filled steel tubular columns. The way of using the concrete-filled steel tubular columns, that is, the steel-concrete composite way, compared with the reinforced concrete structure, the steel-concrete composite structure reduces the cross-sectional size of components, reduces the self-weight of the structure, reduces the seismic response, increases the effective space, reduces the foundation cost, and increases the ductility and durability of components and structures. Therefore, adopting the steel-concrete composite structure components can significantly improve the bearing capacity, seismic performance and durability of the structure within a reasonable cost range. And for the column base of this concrete-filled steel tube, that is, the connection method of the fixed column body 5 and the concealed beam built-in in the foundation raft 2, an internal bending-resistant steel corbel transition section is adopted to ensure the coordinated work of the combined section at the beam end. The combined section resists the bending moment transmitted from the lower end of the column, optimizes the embedded depth of the conventional column base, and is more firm and stable in use.

[0026] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A column foot node structure of a steel tube concrete column for power generation using domestic waste incineration, comprising a foundation (1), characterized in that: A foundation raft (2) is fixedly installed on the top of the foundation (1), a positioning installation groove (3) is provided in the middle of the foundation raft (2), a foundation column (4) is fixedly installed inside the positioning installation groove (3), a fixed column (5) is provided on the top of the foundation column (4), a reinforced concrete hidden beam (6) is provided in the middle of the foundation raft (2), hidden beam stirrups (17) are installed on the outer side of the reinforced concrete hidden beam (6), and a plurality of steel brackets (7) supporting the reinforced concrete hidden beam (6) are installed inside the foundation raft (2), and the fixed column (5) comprises a column foot bottom plate (9), a steel tube concrete column (10) fixed on the top of the column foot bottom plate (9) and a plurality of anchor bolts (11) threadedly connected to the surface of the column foot bottom plate (9), and a bent hook (16) is provided at the bottom of the anchor bolt (11).

2. The column foot node structure of the steel tube concrete column for power generation by incineration of domestic waste according to claim 1 is characterized by: A shear bolt (8) is provided between the reinforced concrete hidden beam (6) and the steel corbel (7), and the reinforced concrete hidden beam (6) and the steel corbel (7) are fixed by the shear bolt (8).

3. The column foot node structure of the steel tube concrete column for power generation by incineration of domestic waste according to claim 1 is characterized by: The connection between the anchor bolt (11) and the top of the column foot plate (9) and the connection between the anchor bolt (11) and the bottom of the column foot plate (9) are both installed with fixing nuts (12).

4. The column foot node structure of the steel tube concrete column for power generation by incineration of domestic waste according to claim 1 is characterized by: A reinforcement ring (14) is fixedly installed on the outer side of the steel tube concrete column (10), and a plurality of stiffening ribs (13) are fixedly connected to the top of the column foot bottom plate (9).

5. The column foot node structure of the steel tube concrete column for power generation by incineration of domestic waste according to claim 4 is characterized by: The stiffening rib (13) is connected to the surface of the steel tube concrete column (10).

6. The column foot node structure of the steel tube concrete column for power generation by incineration of domestic waste according to claim 1 is characterized by: A plurality of flat-head bolts (15) are fixedly connected to the surface of the steel tube concrete column (10).

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