Damping element, friction pendulum bearing and damping method thereof
A technology of friction pendulum bearings and damping elements, which is applied to bridge parts, bridges, buildings, etc., can solve the problems of dissipating seismic energy and not possessing it, and achieve good seismic performance and energy dissipation capacity, good fatigue resistance, and no easy to break effect
Active Publication Date: 2017-07-18
ZHUZHOU TIMES NEW MATERIALS TECH
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Problems solved by technology
[0007] For example, the utility model patent with the authorized announcement number CN203320402U, the cable type mainly plays the function of limit and tension, and it hardly has the function of dissipating the seismic energy through the elastic-plastic deformation of the damping element.
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Embodiment Construction
[0031] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] Such as Figure 1 to Figure 3 As shown, the damping element 1 includes a damping steel rod 11, the damping steel rod 11 is in a spiral shape, the upper end and the lower end of the damping steel rod 11 have a mounting block 12, and the mounting block 12 and the damping steel rod 12 The connection strength between the mounting block 11 and the damping steel rod 12 is greater than the tensile strength of the damping steel rod 11, so as to ensure that no fracture occurs between the mounting block 11 and the damping steel rod 12 when the elastic-plastic deformation of the damping steel rod occurs.
[0033] The damping steel rod 11 is a right helical damping steel rod or a left helical damping steel rod. The cross-section of the damping steel rod 11 is circular, the two mounting blocks 12 are vertically aligned, and the rotation angle of the damping...
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The invention discloses a damping element. The damping element comprises a damping steel bar, and is characterized in that the damping steel bar is helical; the upper end and the lower end of the damping steel bar are provided with mounting blocks; the connection strength between the mounting blocks and the damping steel bar is larger than the tensile strength of the damping steel bar. The damping steel bar in the damping element is helical, and the damping element is applied to the support, so that the horizontal rigidity and vertical rigidity of the support are enhanced through the damping element, the horizontal load on the support is lowered, and the vertical load on the support can be resisted; hysteretic curves generated by the damping element under the two loads are full and basically keep constant when the damping steel bar is under the transverse and longitudinal horizontal loads of the support, so that the hysteretic energy consumption characteristic is more remarkable, the plastic deforming performance of the damping element is high, and high anti-seismic property and energy consumption performance are achieved. The invention further provides a friction pendulum support and a damping method thereof.
Description
technical field [0001] The invention belongs to the technical field of bridge engineering vibration reduction, and mainly relates to a damping element, which can be applied to a friction pendulum support to consume seismic energy and achieve the purpose of vibration reduction. The invention also relates to a friction pendulum support and a damping method thereof. Background technique [0002] During normal work or frequent earthquakes (E1 earthquakes), the ordinary friction pendulum support can meet the requirements of the upper structure by virtue of its own damping, but under extreme conditions such as strong winds and strong earthquakes (E2 earthquakes), the ordinary friction pendulum support The horizontal load borne by the seat is relatively large, which will cause excessive horizontal displacement and cause damage to the superstructure. For example, the superstructure of a bridge is prone to beam fall hazards. [0003] Friction pendulum bearings with damping function ...
Claims
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IPC IPC(8): E01D19/04
CPCE01D19/041
Inventor 王伟强张银喜孔令俊曹志峰卜继玲姜其斌
Owner ZHUZHOU TIMES NEW MATERIALS TECH