A viscous damping steel bar connector

Abstract

A viscous damping steel connector can be used to connect assembly type building components with a vibration control requirement, and belongs to the field of civil engineering. The viscous damping steel connector comprises an outer cylinder, an inter cylinder, a piston, an oil hole, a connecting rod and a viscous fluid, the outer cylinder is a cylindrical tube body, one end of the cylindrical tube body is provided with a hole which is connected with a reinforcing bar, the other end is provided with a hole which can be inserted into the inter cylinder, a cavity is clamped between the holes at the two ends, the cavity is fully filled with a viscous fluid, the cavity is in mutual communication with the hole which can be inserted into the inter cylinder, the cavity is separated, by a partition, from the hole which is connected with the reinforcing bar, one end of the inter cylinder is closed, and is provided with a hole which can be fixedly connected with a bar, the other end of the inter cylinder is open; the diameter of the piston and the diameter of the outer cylinder cavity are same, and at least one oil hole longitudinally passes through the piston. When a member is subjected to dynamic load, and relative displacement occurs, the damping force of the viscous fluid in the viscous damping steel connector is generated by the oil hole. The viscous damping steel connector is simple and free in structure, and easy to install, has shock absorption function, and can realize the industrialization.

Description

[0001] The invention relates to the field of assembled structures and structural vibration control in civil engineering, in particular to a steel bar connector with viscous damping characteristics. [0002] Background technique: [0003] Steel connectors, including sleeve connectors and mechanical connectors, have been widely used in the connection of steel bars between prefabricated components. They have the advantages of stable axial load transmission, convenient construction, and green construction; Vibration is a relatively mature vibration control method at present. The dampers designed and installed based on the theory of damping and vibration reduction are widely used in various buildings around the world, among which the viscous fluid damper is a relatively common one. [0004] A viscous damped rebar connector can be formed by combining a rebar connector with a viscous damper. Compared with traditional steel connectors, viscous damping steel connectors have lower stiffn...

AI Technical Summary

Problems solved by technology

[0005] At present, traditional steel connectors have reliable mechanical properties in the case of only transmitting axial loads, while the research on the mechanical properties of some steel connectors, such as grouting sleeves, under complex dynamic loads is still in its infancy ; The mechanism of dynamic interaction between the steel connectors in some components and the surrounding materials is not yet clear; there are few cases of prefabricated structures that use traditional steel connectors for steel connection due to earthquake loads to be damaged, so the use of traditional steel connection The seismic performance of the prefabricated structure of the device is still controversial

[0006] It can be seen that the existing prefabricated component connection technology is not perfect, and it cannot make the prefabricated structure have better seismic performance, which restricts the promotion and wide application of the prefabricated structure.

Images