CN211816909U - Assembled swing column system with external connecting piece - Google Patents

Abstract

The utility model relates to a prefabricated rocking column system with external connectors, comprising an external connector, a prefabricated rocking column and a shock isolation support; the prefabricated rocking column is composed of concrete and tendons; The prefabricated rocking column is connected with the frame beam; a shock-isolating bearing is arranged at the receiving part of the prefabricated rocking column and the frame beam; the external connection piece is composed of external reinforcement and anchors. The utility model connects the rocking column and the beam-tie cap by means of the vibration isolation bearing and the external connecting piece, prevents the concrete at the column end from being crushed after the rocking column swings, and improves the defect of the reduction of the lateral rigidity of the common rocking column after the rocking occurs. Improve the shear bearing capacity of the column; on the premise of not reducing the cross-sectional area of the column and beam, the external connector provides the column with self-reset capability, so that the rocking column system can quickly restore its function after the earthquake.

Description

A prefabricated rocking column system with external connectors

technical field

The utility model relates to an assembled rocking column system with external connecting pieces, which can be used in a self-resetting rocking structure.

Background technique

With the advancement of construction technology and the continuous improvement of structural seismic technology, in order to avoid the serious impact of earthquake disasters on social development, the concept of recoverable functions is becoming the direction of future engineering seismic development. In 2011, Chinese scholars clarified the concept of recoverable functional structure. How to design a structure that will not be damaged in an earthquake or that can only be damaged quickly will become one of the important research directions for the sustainable development of engineering earthquake resistance.

Self-resetting rocking structure is one of the main realization forms of recoverable functional structure. In the early rocking building structure, the general practice is to relax the constraints between the structure and the foundation. In addition, scholars in the United States, Europe, Japan, and China have also carried out structural designs that relax the constraints between components, such as post-tensioned prestressed frame structures. Make the structure self-reset.

The idea of "replaceable" has only begun to be applied in structural engineering in recent years. It was first used in bridge engineering, and then it has achieved good development in steel structural systems. At present, the application and research in concrete structural systems have also begun to be fruitful. In terms of structural form, the structure with replaceable components belongs to a kind of recoverable functional structure. The strength of a certain part of the structure is weakened, or a ductile energy-dissipating member is arranged in this part, and the weakened part or energy-dissipating member is set as a replaceable member, and connected with the main structure through a device that is easy to disassemble, that is, a structure with replaceable components system. Under the action of the earthquake, the input energy of the earthquake is dissipated, and the main structure is protected from damage or only minor damage. After the earthquake, only the energy-consuming components can be replaced to restore the structural function.

Utility model content

The utility model provides an assembled rocking column system with external connecting pieces. Can be used in self-resetting rocking structures.

The technical scheme adopted by the utility model is:

A prefabricated rocking column system with external connectors, comprising an external connector, a prefabricated rocking column and a shock isolation bearing; the prefabricated rocking column is composed of concrete and tendons; the external connectors connect the prefabricated rocking column It is connected with the frame beam; a shock isolation bearing is arranged at the connection between the assembled rocking column and the frame beam; the external connection piece is composed of external reinforcement and anchors.

There are multiple anchors embedded in the assembled swing column; the swing column of the fabricated swing column adopts ordinary reinforced concrete columns or composite structural columns.

The advantages of the utility model are:

1. The present utility model utilizes the isolation bearing to connect the beam system and the rocking cylinder to realize the energy dissipation mechanism of the column end and prevent the damage caused by the extrusion of the concrete at the column end.

2. The external connector realizes the configuration of external self-resetting tendons through the column end anchorage, without changing the cross-sectional area of the column and beam, it provides the self-resetting ability for the rocking cylinder, and avoids the complicated construction of the traditional rocking cylinder. process.

3. The external connector is an independent component, which can be removed and replaced easily after the earthquake, so that the rocking column system can quickly restore its function after the earthquake.

4. Set seismic isolation bearings at the nodes of the rocking column and the beam system. During the swinging process, the seismic isolation bearings are first deformed, reducing the seismic action of the superstructure, and at the same time preventing local damage to the concrete at the column end under the action of the earthquake. Reasonable connection design improves the shear bearing capacity at the joint.

5. Use external connectors to connect the column end and the beam to provide the necessary self-reset capability for the rocking column, and at the same time provide a certain shear bearing capacity.

Description of drawings

Figure 1 is a schematic diagram of an assembled rocking column system with external connectors.

FIG. 2 is an implementation diagram of a fabricated rocking column system with external connectors.

Detailed ways

A prefabricated rocking column system with external connectors will be further described below with reference to Figures 1 and 2.

A prefabricated rocking column system with external connectors, including external connectors 2, prefabricated rocking columns 1 and shock isolation supports 3; the prefabricated rocking column 1 is composed of concrete 1-1 and tendons 1-2 constitute;

The external connector 2 connects the prefabricated rocking column 1 with the frame beam 4; a shock isolation bearing 3 is provided at the connection between the prefabricated rocking column 1 and the frame beam 4; the external connector 2 is composed of the external reinforcement 2-1 It is composed of anchors 2-2.

A plurality of anchors 2-2 are embedded in the prefabricated rocking column 1; the rocking column of the prefabricated rocking column 1 adopts an ordinary reinforced concrete column or a composite structure column.

A plurality of anchors 2-2 are embedded in the frame beam 4 .

The external tendons 2-1 fasten and connect the anchors 2-2 of the frame beam 4 and the anchors 2-2 of the prefabricated rocking column 1 .

Both ends of the external tendon 2-1 penetrate through the anchor 2-2 and are fixed with bolts.

The fabricated rocking column 1 is arranged between two frame beams 4 .

Through reasonable design, the column-beam joint should have a certain shear bearing capacity.

According to the design requirements, the external connector adopts a variety of material forms, such as prestressed tendons, lead screws or superelastic materials.

The external connectors are symmetrically arranged around the swing column, effectively connecting the column end of the swing column and the beam system.

The external connector is reasonably designed to avoid the damage of the connection between the connector and the anchor during the rocking process.

The external connector of the column end is composed of external tendons and anchors. The external tendons are replaceable parts and can have various material forms. The connector connects the column end and the beam system, providing the necessary self-resetting ability for the column. It can also provide a certain shear bearing capacity for the column end to prevent shear-slip at the column end.

The rocking column is a prefabricated concrete structure, which can have various cross-sectional forms. Through the reasonable design of the column, the column and the anchoring area can be guaranteed to have sufficient strength during rocking.

The seismic isolation bearing is set at the node of the rocking column and the beam system. When the column sways, the bearing is first deformed, thereby forming the energy dissipation mechanism of the column end, preventing the damage of the column end caused by the extrusion of concrete, and providing the column necessary shear capacity.

The protection scope of the present invention includes but is not limited to the products and styles of the above-mentioned specific embodiments, any prefabricated rocking column system with external connectors in accordance with the claims of the present invention, and any actions made by those skilled in the art. Appropriate changes or modifications should fall within the protection scope of this patent.

Claims (5)

1. The utility model provides an assembled of external connecting piece of area shakes pendulum post system which characterized in that: comprises an external connecting piece, an assembled swinging cylinder and a shock insulation support;

the assembled swing column is composed of concrete and a rib body;

the external connecting piece connects the assembled swing column with the frame beam; a shock insulation support is arranged at the joint of the assembled swing column and the frame beam;

the external connecting piece consists of an external rib body and an anchorage device.

2. The assembled rocking post system with the external connecting piece of claim 1, wherein: a plurality of anchors are embedded in the assembled swinging cylinder; the assembled swinging column adopts a common reinforced concrete column or a combined structure column.

3. The assembled rocking post system with the external connecting piece of claim 1, wherein: a plurality of anchors are embedded in the frame beam.

4. The assembled rocking post system with the external connecting piece of claim 1, wherein: the external rib body fastens and connects the anchor of the frame beam with the anchor of the assembled swing column body.

5. The assembled rocking post system with the external connecting piece of claim 1, wherein: the two ends of the external rib body penetrate through the anchorage device and are fixed by bolts.

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