About the Forces and Moments that Influence the Behavior …
519
Fig. 4 Structural response of a seismically isolated building
Fig. 5 Ideal correspondence
between the force and the
displacement
where v represents the system speed.
In the case of friction isolators with large contact surfaces and lack of a lubricating
fluid, the friction coefficient depends on the nature of the slip surfaces, the sliding
speed, or the pressure exerted by the construction on the slip surface.
The response spectrum for damping greater than 5% shall be achieved by dividing
the amortization acceleration with a damping coefficient or a depreciation loss factor
B as follows:
S a (T, β) =
S a (T, 5%)
B
(6)
519
Fig. 4 Structural response of a seismically isolated building
Fig. 5 Ideal correspondence
between the force and the
displacement
where v represents the system speed.
In the case of friction isolators with large contact surfaces and lack of a lubricating
fluid, the friction coefficient depends on the nature of the slip surfaces, the sliding
speed, or the pressure exerted by the construction on the slip surface.
The response spectrum for damping greater than 5% shall be achieved by dividing
the amortization acceleration with a damping coefficient or a depreciation loss factor
B as follows:
S a (T, β) =
S a (T, 5%)
B
(6)