Composite friction energy dissipation variable tension TiNi alloy wire self-resetting damper

Abstract

The invention discloses a composite friction energy dissipation variable tension TiNi alloy wire self-resetting damper, a left connecting piece (1) and a left end plate (2) are welded and then connected with a constraint cylinder (3) into a whole, and a bolt (8) penetrates through a bolt hole (32) and is temporarily connected with a bolt extrusion hole (71) in a friction block (7); an upper sliding rod (4) and a lower sliding rod (41) are connected through a check block (13), then the two sides of the upper sliding rod (4) and the two sides of the lower sliding rod (41) are connected with friction steel plates (5), a first piezoelectric ceramic driver (9), a left sliding block (6), a second piezoelectric ceramic driver (91) and a right sliding block (61) are symmetrically arranged on the two sides of the fixed check block (13), the left sliding block and the right sliding block can slide in sliding grooves (42) of the upper sliding rod and the lower sliding rod and are in clearance fit with a left end plate and a right end plate, and baffles (15) are connected to the two sides of the sliding blocks. A prestressed steel wire (10) penetrates through baffles (15) to connect the left sliding block (6) with the right sliding block (61) through an anchor bolt (11), and a limiting block (12) penetrates through a limiting hole (33) and then is connected with the upper sliding rod (4).

Description

technical field [0001] The invention relates to the field of energy consumption and vibration reduction control in civil engineering, in particular to a piezoelectric damper control technology with energy consumption and self-resetting functions. Background technique [0002] With the development of urban construction, high-rise super high-rise buildings are gradually popularized, and people's requirements for the comfort and safety of high-rise super high-rise buildings are gradually increasing. Ordinary seismic isolation measures have limited wind resistance and seismic isolation effects on high-rise super high-rise buildings, so it is necessary to take appropriate vibration reduction methods in high-rise buildings to reduce the impact of external loads on the building structure. The semi-active control damper can adjust the damping force in real time according to the response of the building structure and has good energy consumption and self-resetting ability, which can r...

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Problems solved by technology

[0003]Most of the self-resetting dampers with shape memory alloys involved in energy dissipation currently used cannot adjust the energy dissipation capacity and self-resetting ability of the damper in real time according to the response of the structure, so it is necessary to Invented a new type of self-resetting damper, under the action of piezoelectric materials, it can adjust the energy consumption and self-resetting ability of the damper in real time according to the response of the structure, and the energy consumption and self-resetting ability of the damper can meet the requirements of the building structure , to meet people's requirements for building comfort and safety under the action of external loads such as wind and earthquakes

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