Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define Seismic Isolation Bearings - Bridge Bearing?
Many bridges had been built before the proper seismic design specifications were known to us. These bridges require strengthening and enhancing the ductility of substructures in order to sustain the earthquake forces. Conventional retrofitting methods are costlier (more than 3 times) than providing 'Seismic Isolation Bearings' (SIB). The studies have shown that:
(a) The SIB eliminated the in-plane torsional rotation of the bridge and resulted in a more uniform distribution of seismic forces among substructures in the transverse direction.
(b) The modifications in the response of the bridge resulted as a result of use of SIB because the effective fundamental period of the bridge get elongated due to the flexibility provided by the SIB.
(c) Average retrofitting cost using SIB is calculated as only 30% of that using conventional retrofitting methods.
An isolation bearing induce sufficient lateral flexibility in a bridge structure and increase the period of vibration, resulting in a reduced force response. The increased lateral flexibility is associated with larger horizontal displacements at the bearing level. In the longitudinal direction, the stiffness of a bridge with isolation bearings is the sum of the stiffness of all piers and abutments including the bearings. In a bridge with conventional bearings. However, the longitudinal stiffness incorporates the stiffness of a fixed support alone. The isolation bearings should also include a restoring force to return the superstructure to its pre-earthquake position.
how to rectify tilt of well
stress
Operation in chain surveying
Explain the Activitated Sludge (Aeration Tank)? The activated sludge treatment process is a biochemical oxidation process. Organic solids are stabilized through the oxidation p
how many bag of cement make a cubic
What is Specific Energy Applying the Bernoulli energy equation in open channel flow results in Z = 0 (channel bottom or datum), the pressure head (p/γ) = d, and the velocity he
Q. A crossover is to be laid between two parallel B. G. tracks at 4.725 m centers by using 52 kg, 1 in 8½ and 1 in 12 turnouts. For this layout, i. Determine the main geometrica
Difinaction of stair
Testing of Aggregates: For use in pavement, road aggregates have to be strong, durable and of good shape. A well-graded aggregates adds to the stability of the layer. The fol
Shear stress distribution in circular section
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd