CN209145147U - A lattice-type CFST double-limb special-shaped column with replaceable components - Google Patents

Abstract

The utility model discloses a lattice type square steel tube concrete double-limb special-shaped column with replaceable components, which comprises a square steel tube concrete column. The square steel tube concrete column is provided with a profiled steel auxiliary column in a parallel direction. An energy-consuming structure is vertically connected between the ends, and a plurality of energy-consuming coupling beams are also vertically connected between the CFST column and the section steel auxiliary column. , energy dissipation structure, a plurality of rectangular units are formed between the square steel tube concrete column and the section steel auxiliary column, each rectangular unit is provided with an oblique web bar near the end of a diagonal position, which has a small cross-sectional area of the component and the ability to dissipate seismic energy. It has the advantages of strong, simple construction and strong ventilation. In addition, after a strong earthquake, the structure can achieve a rapid recovery function.

Description

A lattice-type CFST double-limb special-shaped column with replaceable components

technical field

The utility model belongs to the technical field of civil engineering structures, and relates to a lattice type square steel tube concrete double-limb special-shaped column with replaceable components.

Background technique

Due to the large structural volume and complex structural system of modern industrial buildings, they will cause irreparable damage after earthquakes, which will seriously affect the safety of the later use of industrial buildings, cause the use of industrial buildings to fail, and lead to the shutdown of industrial plants. , seriously affecting people's normal production activities. Therefore, under the premise of satisfying the seismic design of modern industrial buildings, it is the future development trend to improve the ability of industrial buildings to quickly repair after earthquakes. In addition, in industrial buildings that bear a large load, the single-limb column has a small cross-sectional moment of inertia, which reduces the torsional ability of the component to resist earthquake action, while increasing the cross-sectional area of the single-limb column makes a convex angle appear inside the building, which affects the interior of the building. The use of the area and the arrangement of the equipment, and the proposal of the special-shaped column is an effective way to solve the above problems.

In addition, due to its light weight and good ductility, steel structures have been widely used in practical engineering in seismic fortification areas. The steel coupling beam in the steel structure has good energy dissipation capacity, light weight and easy construction. The research shows that the steel coupling beam can achieve shear yielding after reasonable design, and its seismic ductility and energy dissipation capacity are significantly better than traditional reinforced concrete coupling beams, especially suitable for building structures in high-intensity earthquake areas.

For compression-bending members with large cross-section heights and heavy loads, lattice-type compression-bending members are used, in which lattice-type columns that connect two independent struts through connectors are called double-limb lattice-type columns. The double-limb lattice column is mostly used in industrial buildings, and has the advantages of light weight, good mechanical performance and good ventilation performance. However, most of the current double-limb lattice columns are difficult to repair the damage of the connection between the connector and the column under the action of the earthquake, which is unfavorable for the rapid recovery of the structural function of the industrial building.

To sum up, it is very necessary to propose a double-limb lattice special-shaped column that can quickly restore functions after an earthquake and is suitable for industrial buildings.

Utility model content

The purpose of the utility model is to provide a lattice type square steel tubular concrete double-limb special-shaped column with replaceable components, which has the advantages of small component cross-sectional area, strong seismic energy dissipation capacity, simple construction and strong ventilation capacity.

A technical scheme adopted by the present utility model is that a lattice type CFST double-limb special-shaped column with replaceable components comprises a square CFST column, a profiled steel auxiliary column is arranged in the parallel direction of the square CFST column, and the square CFST column is provided with an auxiliary column. There are energy-consuming structures vertically connected to the opposite ends of the auxiliary steel columns, and a plurality of energy-consuming coupling beams are also vertically connected between the CFST column and the auxiliary steel columns, and the plurality of energy-consuming connecting beams are located in the two energy-consuming structures In between, a plurality of rectangular units are formed between the energy-consuming connecting beam, the energy-consuming structure, the square steel tube concrete column, and the section steel auxiliary column, and a diagonal web bar is set close to the end of a diagonal line of each rectangular unit.

The utility model is characterized in that:

Each energy-consuming structure includes a replaceable beam section, the two ends of the replaceable beam section are connected with an end plate respectively, and each end plate is connected with an energy-consuming beam section, one of which is connected to the square steel tube concrete column, and the other An energy dissipating beam segment is connected to the profiled steel auxiliary column.

The section height of the replaceable beam section is lower than the section height of the energy dissipating beam section.

The square steel tube concrete column includes a square steel tube, at least two rib strips are welded on each side of the inner wall of the square steel tube, and the square steel tube is built with concrete.

The sections of the steel auxiliary columns, energy-consuming coupling beams, energy-consuming beam sections, and replaceable beam sections are all "I"-shaped.

The beneficial effects of the present utility model are:

1) The structural method of special-shaped columns can solve the problem of building lobes, and at the same time increase the flexural rigidity of the structure; increase the usable area inside the building, and facilitate the flexible arrangement of equipment;

2) It is convenient for pipeline layout, the section height of the replaceable energy-consuming beam section is lower than the energy-consuming connecting section, and the replaceable energy-consuming beam section is separated from the floor, which is convenient for pipeline layout;

3) The self-weight is light and the energy dissipation capacity is strong, and the I-beam is flexibly used, which has the characteristics of light weight and good ductility, which effectively improves the seismic energy dissipation capacity of the components;

4) The function of the structure can be quickly restored after a strong earthquake. Under the action of a strong earthquake, the replaceable energy-dissipating beam section yields in shear, and the rest remain elastic; after a strong earthquake, only the replaceable energy-dissipating beam section needs to be replaced to quickly restore the structure function, saving time cost and economic cost;

5) The lateral movement resistance rigidity and shear bearing capacity are strong, and the lateral movement resistance stiffness and shear bearing capacity of the structure can be effectively increased by setting the inclined web bar to connect with the beam-column joint;

6) The construction is simple, all the components are prefabricated in the factory, and they are welded or bolted on the construction site, which effectively improves the construction efficiency and is suitable for industrial buildings.

Description of drawings

Fig. 1 is the plane structure schematic diagram of the lattice type square steel tubular concrete double-limb special-shaped column of a kind of replaceable component of the present utility model;

Fig. 2 is a three-dimensional structural schematic diagram of a lattice type square steel tubular concrete double-limb special-shaped column with replaceable components according to the present invention.

In the figure, 1. square steel tube concrete column, 2. shaped steel auxiliary column, 3. energy-consuming coupling beam, 4. inclined web member, 5. energy-consuming beam section, 6. end plate, 7. replaceable beam section.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

The utility model is a lattice type CFST double-limb special-shaped column with replaceable components, as shown in Figures 1 and 2, comprising a square CFST column 1, and the square CFST column 1 is provided with a profiled steel auxiliary column 2 in a parallel direction. An energy-consuming structure is vertically connected between the opposite ends of the square steel tube concrete column 1 and the section steel auxiliary column 2, and a plurality of energy consumption connecting beams 3 are also vertically connected between the square steel tube concrete column 1 and the section steel auxiliary column 2. The energy coupling beam 3 is located between the two energy-consuming structures, and a plurality of rectangular units are formed between the energy-consuming coupling beam 3, the energy-consuming structure, the square steel tube concrete column 1, and the section steel auxiliary column 2, and a diagonal line of each rectangular unit is A sloping belly bar 4 is arranged close to the end.

Each energy-consuming structure includes a replaceable beam section 7, two ends of the replaceable beam section 7 are respectively connected to an end plate 6, each end plate 6 is connected to an energy-consuming beam section 5, and one of the energy-consuming beam sections 5 is connected to the square On the CFST column 1 , another energy-consuming beam section 5 is connected to the profiled steel auxiliary column 2 .

The section height of the replaceable beam section 7 is lower than the section height of the energy dissipation beam section 5. Under the action of a strong earthquake, the replaceable energy dissipation beam section 7 shears yields and dissipates energy, while the energy dissipation beam sections 5 at both ends remain elastic.

The square steel tube concrete column 1 includes a square steel tube, at least two rib strips are welded on each side of the inner wall of the square steel tube, and the square steel tube is built with concrete.

The sections of the section steel auxiliary column 2, the energy-consuming coupling beam 3, the energy-consuming beam section 5, and the replaceable beam section 7 are all "I"-shaped.

The functions of each component in a lattice type square steel tubular concrete double-limb special-shaped column with replaceable components of the utility model are as follows:

The manufacturing method of the square steel tube concrete column 1 is as follows: the ribbed square steel tube is poured with concrete to form the square steel tube concrete column 1 .

The square concrete-filled steel tubular column 1 can be fabricated on site by a cast-in-place method, and can increase the lateral movement resistance and torsional stiffness of the frame, and also has a certain seismic energy dissipation capacity.

The replaceable beam section 7 is disengaged from the floor slab for easy replacement and arrangement of pipelines.

The energy-consuming coupling beam 3 is connected with the square CFST column 1, and the energy-consuming beam section 5 and the square CFST column 1 are connected by welding and bolting of connectors.

The profiled steel auxiliary column 2, the energy-consuming coupling beam 3, the energy-consuming beam section 5 and the replaceable beam section 7 have the advantages of light weight, strong seismic energy dissipation capacity and simple construction.

The oblique web bar 4 is connected with the rectangular unit by welding or by bolts.

The inclined web bar 4 can provide lateral support, which can improve the lateral movement rigidity and shear bearing capacity of the member.

The yield bearing capacity of the energy dissipation beam section 5 is greater than the yield bearing capacity of the replaceable beam section 7 .

The working principle of a lattice type square steel tubular concrete double-limb special-shaped column with replaceable components of the utility model is as follows:

The special-shaped column is provided with a square concrete-filled steel tubular column 1 as the main column and a section steel auxiliary column 2 as an auxiliary. Between the main column and the auxiliary column is connected an energy-consuming connecting beam 3, and also connected with an energy-consuming beam section 5, an end plate 6 and a replaceable The beam section 7 is also provided with an inclined web bar 4 to increase the lateral movement stiffness and shear bearing capacity of the special-shaped column. In addition, the section height of the replaceable beam section 7 is lower than that of the energy dissipation beam section 5 , and the yield bearing capacity of the replaceable energy dissipation beam section 7 is lower than the yield bearing capacity of the energy dissipation beam section 5 . Under the action of earthquake, the CFST column 1 bears the main load and has good seismic energy dissipation capacity, while the auxiliary steel column 2 can dissipate the seismic energy through coordinated deformation, so that the structure obtains the Greater bending stiffness. Under a strong earthquake, the replaceable beam section 7 yields in shear, and the rest remain elastic. After a strong earthquake, the replaceable beam section 7 can be replaced alone, so that the rapid recovery of the structural function can be achieved.

Through the above-mentioned method, the utility model is a lattice type square-shaped concrete-filled steel tubular double-limb special-shaped column with replaceable components, and the structural method of the special-shaped column can solve the problem of the convex angle of the building, and also increase the bending resistance of the structure. Rigidity; increase the usable area inside the building, facilitate the flexible arrangement of equipment; facilitate the layout of pipelines, the section height of the replaceable energy-consuming beam section 7 is lower than the energy-consuming beam section 5, and the replaceable energy-consuming beam section 7 is separated from the floor, which is convenient Pipeline layout; light weight and strong energy dissipation capacity, flexible use of I-beams with light weight and good ductility, effectively improving the seismic energy dissipation capacity of components; under strong earthquake action, the energy dissipation beam can be replaced Section 7 yields in shear, and the rest remain elastic; after a strong earthquake, only the replaceable energy-consuming beam section 7 needs to be replaced, and the structural function can be quickly restored, saving time and economic costs; high lateral stiffness and shear bearing capacity Strong, by setting the inclined web bar 4 to connect with the beam-column node, the lateral stiffness and shear bearing capacity of the structure can be effectively increased; the construction is simple, all components are prefabricated in the factory, and are welded or bolted on the construction site. Assembly, effectively improve the construction efficiency, suitable for industrial buildings.

Claims (5)

1. a kind of double limb Special-Shaped Columns of the lattice Concrete-Filled Square Steel Tube of replaceable component, which is characterized in that including square steel tube coagulation Earth pillar (1), concrete-filled steel square tubular column (1) parallel direction are provided with the auxiliary column of fashioned iron (2), the concrete-filled steel square tubular column (1) Energy-dissipation structure, the concrete-filled steel square tubular column (1) and the auxiliary column of fashioned iron are vertically connected between the opposite end of the auxiliary column of fashioned iron (2) (2) multiple energy consumption coupling beams (3) are also vertically connected between, multiple energy consumption coupling beams (3) are located between two energy-dissipation structures, institute It states and consumes energy coupling beam (3), forms multiple rectangular elements between energy-dissipation structure, concrete-filled steel square tubular column (1), the auxiliary column of fashioned iron (2), often The diagonal positions head and the tail of a rectangular elements are close to be provided with a diagonal web member (4)；

Each energy-dissipation structure includes replaceable beam section (7), and replaceable beam section (7) both ends are separately connected an end plate (6), each end plate (6) is all connected with an active beam link (5), and one of active beam link (5) is connected to square steel tube coagulation On earth pillar (1), another described active beam link (5) is connected on the auxiliary column of fashioned iron (2).

2. a kind of double limb Special-Shaped Columns of the lattice Concrete-Filled Square Steel Tube of replaceable component, feature exist according to claim 1 In the depth of section of the replaceable beam section (7) is lower than the depth of section of active beam link (5).

3. a kind of double limb Special-Shaped Columns of the lattice Concrete-Filled Square Steel Tube of replaceable component, feature exist according to claim 1 In, the concrete-filled steel square tubular column (1) includes square steel tube, and at least two floor items are welded in each side of square steel inside pipe wall, The square steel tube is built-in with concrete.

4. a kind of double limb Special-Shaped Columns of the lattice Concrete-Filled Square Steel Tube of replaceable component, feature exist according to claim 1 In the section of, the auxiliary column of fashioned iron (2), energy consumption coupling beam (3), active beam link (5), replaceable beam section (7) be " I " fonts.

5. a kind of double limb Special-Shaped Columns of the lattice Concrete-Filled Square Steel Tube of replaceable component, feature exist according to claim 1 In the replaceable beam section (7) uses common iron, marmem or Low Yield Point Steel.