Define types of seismic isolation bearing - rubber bearings, Civil Engineering

Assignment Help:

Define Types of Seismic Isolation Bearing - Rubber Bearings?

Seismic isolation is obtained by two types of isolation bearings.

a) Rubber bearings

b) Friction pendulum bearings

Rubber bearings are composed of a lead case and natural or synthesized rubber with embedded layers of steel plates.

2067_Define types of seismic isolation bearing - rubber bearings.png

Figure: Rubber Bearing

The force-displacement behaviour of this bearing is elastic under service load and inelastic during an earthquake when the lead case deforms beyond its elastic limits. In fact, the bearing distribute the inertial forces from the deck level to all supporting substructures on the basis of their relative stiffness. Rubber bearings are meant to shift the vibrational period of the structure so as to avoid resonance with the excitations. These are usually combined with high damping material to prevent the isolated structures from over-displacing.


Related Discussions:- Define types of seismic isolation bearing - rubber bearings

Chemical prestressing, advantages and disadvantages of chemical prestressin...

advantages and disadvantages of chemical prestressing over conventional prestressing?

Compute the thermal stresses in steel, Compute the thermal stresses in stee...

Compute the thermal stresses in steel: Consider the compound bar shown in below figure consisting of a steel bolt of diameter 18 mm, surrounded through a copper tube of outer

Harbours, natural phenomenon affecting the designs of harbours

natural phenomenon affecting the designs of harbours

Thodolite, Ask queexplain about the essential parts of transisit ordinate o...

Ask queexplain about the essential parts of transisit ordinate or vernier theodolitestion #Minimum 100 words accepted#

Total volume of soil that excavated from the borrow area, Project specifica...

Project specifications require a relative compaction of 95% (modified Proctor).  Construction of a highway embankment requires 10,000-yd 3 of fill.  The borrow soil has an in-situ

Strength of materials, #questionwhat is the shear force and bending moment....

#questionwhat is the shear force and bending moment..

Sub-base for concrete carriageway - non-strength provider, Sub-base for con...

Sub-base for concrete carriageway - non-strength provider Essentially sub-base for a concrete carriageway is provided for the below reasons: (i)  It provides aneven and smo

Steel overlap in columns, where we can overlap steel in columns if we use ...

where we can overlap steel in columns if we use 50 or 60 bar diameter as overlap length.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd