Regenerative concrete-filled steel tube structure

Abstract

The regenerative concrete-filled steel tube structure comprises structural columns, structural beams and damping pieces, the structural columns are concrete-filled steel tube columns, and the structural columns and the structural beams are fixedly connected to form a frame; and the end part of the damping piece is fixedly connected with the frame. Damping of the concrete filled steel tube frame structure can be improved, a damper damaged in an earthquake can be replaced, and toughness of a building structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of structures, and particularly relates to a regenerative steel tube concrete structure. Background Art

[0002] Earthquakes are the king of killers among natural disasters. The number of deaths caused by earthquakes in China accounts for 54% of the total number of deaths caused by natural disasters in China. There are about 5 million earthquakes in the world every year, about 13,700 earthquakes every day, about 1% of which are earthquakes that people can feel, and about 18 earthquakes that cause serious damage (magnitude 7 or above) every year. In 1976, the Tangshan earthquake in Hebei killed more than 240,000 people; on May 12, 2008, the Wenchuan earthquake in China had a magnitude of 8, with a total of 87,000 deaths and missing. Earthquakes are major disasters that humans must face.

[0003] Steel structure is one of the important forms of building industrialization, but traditional steel structure frames have the disadvantages of poor earthquake and fire resistance, poor sound insulation, and difficulty in repairing after damage in an earthquake.

[0004] How to increase the fire resistance of steel structure frames, facilitate repair during earthquakes, and improve their toughness is of great significance to the construction and development of prefabricated buildings in my country. Utility Model Content

[0005] The purpose of the utility model is to provide a regenerative steel tube concrete structure that can be used in prefabricated buildings to solve the problems of short fire resistance time and difficult earthquake repair. The utility model effectively improves the fire resistance time of steel columns and improves their repairability in earthquakes by combining steel tube concrete column frames with damping elements. This technology has the advantages of reliable performance, simple structure, fast construction, and green environmental protection.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions.

[0007] A regenerative steel tube concrete structure comprises a structural column, a structural beam and a damping element. The structural column is a steel tube concrete column, which comprises a steel tube and column concrete inside the steel tube. The structural column and the structural beam are fixedly connected to form a frame. The end of the damping element is fixedly connected to the frame.

[0008] Preferably, the structural beam is a steel beam, a precast concrete beam, or a precast steel-reinforced concrete beam; and the damping element is a damper or a damping wall.

[0009] Preferably, the damper is a viscous damper, a friction damper or a viscoelastic damper; the damper is rod-shaped, and both ends of the damper are fixedly connected to the connecting piece of the frame.

[0010] Preferably, the damping wall is a viscous damping wall, which is fixedly connected to the connecting piece of the frame beam; the connecting piece is arranged throughout or at intervals on the inner side of the frame structure.

[0011] Preferably, the column concrete is self-compacting concrete, ordinary concrete, or recycled concrete.

[0012] Preferably, the structural beam is fixedly connected to the floor slab; the floor slab is a prefabricated reinforced concrete floor slab, a corrugated steel plate floor slab, a steel truss floor slab or a cast-in-place reinforced concrete floor slab.

[0013] Preferably, the structural column has a transverse partition in the frame node area, the transverse partition is arranged corresponding to the end of the damping member and is fixedly connected to the steel pipe; the transverse partition has a hole.

[0014] Preferably, the structural column has a steel cage, which is located inside the steel pipe; the steel cage is composed of longitudinal bars and stirrups, and the longitudinal bars are overlapped, welded or mechanically connected.

[0015] Preferably, the structural column has a transverse diaphragm in the frame node area, the transverse diaphragm is arranged corresponding to the end of the damping member, and is fixedly connected to the steel pipe. The transverse diaphragm has a hole, and the longitudinal reinforcement or additional longitudinal reinforcement passes through the hole of the transverse diaphragm, and the additional longitudinal reinforcement is fixedly connected to the longitudinal reinforcement.

[0016] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0017] 1. Through the setting of steel tube concrete columns, the fire resistance time of steel columns can be effectively improved.

[0018] 2. By setting up damping parts, damping can be increased and earthquake effects and reactions can be reduced. Damaged damping parts can be replaced after an earthquake to improve their seismic toughness.

[0019] 3. The steel tube concrete column is formed by a built-in steel cage to form a steel tube reinforced concrete column, which further improves the fire resistance time, bearing capacity and ductility of the steel tube concrete column. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic elevation diagram of the steel tube concrete frame and damping elements.

[0022] Figure 2 It is a plan view of the recycled steel tube concrete structure.

[0023] Figure 3 It is a schematic elevation diagram of the steel tube concrete frame and damping elements.

[0024] Figure 4 It is the cross-section diagram of the concrete-filled steel tube column.

[0025] Figure 5 It is a cross-sectional view of a concrete-filled steel tube column with a steel cage inside.

[0026] Figure 6 It is a schematic diagram of the connection between the connector and the damper and the frame.

[0027] Figure numerals: 1 - structural column, 1.1 steel pipe, 1.2 column concrete, 1.3 steel cage, 1.3a longitudinal reinforcement, 1.3b stirrups, 2 - structural beam, 3 - damping element, 4 - connecting element. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, technical solution and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the utility model and their descriptions are used to explain the utility model, but are not intended to limit the utility model.

[0029] In the description of the present utility model, it is to be understood that the terms "include / comprise", "consist of..." or any other variations thereof are intended to cover non-exclusive inclusion, so that a product, device, process or method including a series of elements includes not only those elements, but also other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of further restrictions, the elements defined by the phrases "include / comprise..." or "consist of..." do not exclude the presence of other identical elements in the product, device, process or method including the elements.

[0030] In the present utility model, unless otherwise clearly specified and limited, the term "fixed connection" should be understood in a broad sense, for example: it can be a sleeve connection, a lap joint, a welding connection, a bolt connection, or a combination of the above connections; the terms "installation", "connection", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; the term "through-length steel bar" means that the steel bar is continuous without disconnection, or the steel bar is disconnected but the disconnected steel bars are fixedly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] It should also be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device, component or structure referred to must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.

[0032] The following is a detailed description of the implementation of the present invention using preferred implementation methods in conjunction with the accompanying drawings.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown, the regenerative steel tube concrete structure includes a structural column 1, a structural beam 2, and a damping member 3. The structural column 1 is a steel tube concrete column, which includes a steel tube 1.1 and column concrete 1.2 inside the steel tube; the structural column 1 and the structural beam 2 are fixedly connected to form a frame; the end of the damping member 3 is fixedly connected to the frame. The fixed connection method is bolting, welding, riveting or bearing connection.

[0034] The frame columns of the utility model adopt steel tube concrete columns, which can improve the fire resistance time and structural rigidity of the structure and reduce the lateral displacement under the action of earthquakes; the damping parts are connected to the frame to increase the structural damping, and the damaged damping parts can be replaced after the earthquake to achieve the repairability (regeneration) of the structure.

[0035] like Figure 1 and Figure 6 As shown, in the utility model, the structural beam 2 is a steel beam, which is easy to install and has good ductility, and the damping member 3 is a damping wall ( Figure 1 ), the damping wall is a viscous damping wall, which can provide greater damping and is fixedly connected to the connecting member 4 of the frame beam; the connecting member 4 is arranged throughout the inner side of the frame structure or at intervals.

[0036] like Figure 3 As shown, in the present invention, the structural beam 2 is a precast concrete beam or a precast steel-framed concrete beam, which are all precast components, can improve construction efficiency, and can appropriately increase structural rigidity compared to steel beams. The damping element 3 is a damper, which is a viscous damper, a friction damper or a viscoelastic damper, and is in the shape of a rod, with both ends connected to the frame.

[0037] like Figure 5 As shown, in the utility model, the structural column 1 has a steel cage 1.3, which is located in the steel pipe 1.1 and poured with concrete 1.2; the steel cage 1.3 is composed of longitudinal bars 1.3a and stirrups 1.3b, and the longitudinal bars 1.3a are overlapped, welded or mechanically connected. The steel pipe reinforced concrete column is formed, which can further improve the fire resistance of the structural column.

[0038] In the present invention, the column concrete 1.3 is self-compacting concrete, ordinary concrete, or recycled concrete. The use of recycled concrete can further enhance the reuse of resources.

[0039] In the utility model, the structural beam 2 is fixedly connected to the floor slab; the floor slab is a prefabricated reinforced concrete floor slab, a corrugated steel plate floor slab, a reinforced truss floor slab or a cast-in-place reinforced concrete floor slab.

[0040] In the present invention, the structural column 1 has a diaphragm in the frame node area, the diaphragm is arranged corresponding to the end of the damping member, and is fixedly connected to the steel pipe 1.1; the diaphragm has a hole; the longitudinal reinforcement 1.3a passes through the hole of the diaphragm 4, so that the damping force is directly transmitted to the diaphragm in the node area.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A regenerative steel tube concrete structure, characterized in that: The regenerative steel tube concrete structure comprises a structural column (1), a structural beam (2), and a damping member (3); the structural column (1) is a steel tube concrete column, which comprises a steel tube (1.1) and column concrete (1.2) inside the steel tube; the structural column (1) and the structural beam (2) are fixedly connected to form a frame; and the end of the damping member (3) is fixedly connected to the frame.

2. The regenerative steel tube concrete structure according to claim 1 is characterized in that: The structural beam (2) is a steel beam or a precast concrete beam; the damping element (3) is a damper or a damping wall.

3. The regenerative steel tube concrete structure according to claim 2 is characterized in that: The damper is a viscous damper, a friction damper or a viscoelastic damper; the damper is rod-shaped, and both ends of the damper are fixedly connected to the connecting piece (4) of the frame.

4. The regenerative steel tube concrete structure according to claim 2 is characterized in that: The damping wall is a viscous damping wall, which is fixedly connected to the connecting piece (4) of the frame beam; the connecting piece (4) is arranged throughout the inner side of the frame structure or at intervals.

5. The regenerative steel tube concrete structure according to claim 1, characterized in that: The column concrete (1.2) is self-compacting concrete, ordinary concrete, or recycled concrete.

6. The regenerative steel tube concrete structure according to claim 1, characterized in that: The structural beam (2) is fixedly connected to the floor slab; the floor slab is a prefabricated reinforced concrete floor slab, a corrugated steel plate floor slab, a reinforced truss floor slab or a cast-in-place reinforced concrete floor slab.

7. The recycled steel tube concrete structure according to claim 1, characterized in that: The structural column (1) has a transverse partition in the frame node area, the transverse partition is arranged corresponding to the end of the damping member and is fixedly connected to the steel pipe (1.1); the transverse partition has a hole.

8. The regenerative steel tube concrete structure according to claim 1, characterized in that: The structural column (1) has a steel cage (1.3) which is located inside a steel pipe (1.1); the steel cage (1.3) is composed of longitudinal bars (1.3a) and stirrups (1.3b); the longitudinal bars (1.3a) are overlapped, welded or mechanically connected.

9. The recycled steel tube concrete structure according to claim 8, characterized in that: The structural column (1) has a transverse diaphragm in the frame node area. The transverse diaphragm is arranged corresponding to the end of the damping member and is fixedly connected to the steel pipe (1.1). The transverse diaphragm has a hole. The longitudinal reinforcement (1.3a) or the additional longitudinal reinforcement passes through the hole of the transverse diaphragm. The additional longitudinal reinforcement is fixedly connected to the longitudinal reinforcement (1.3a).

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