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Effect of Damping in Bearings for Base Isolated Buildings

Poonam Dhiman

ISBN 10: 3659002402 / ISBN 13: 9783659002403
Published by LAP Lambert Academic Publishing
New Condition: New Soft cover
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100 pages. Dimensions: 8.7in. x 5.9in. x 0.2in.Base isolation is a one of the modern earthquake combating techniques in which the superstructure is decoupled from the foundation with the help of some isolation device. Base isolation reduces the demand on superstructure enabling use of lighter structural members. The magnitude of earthquake forces transferred to the superstructure can be affected by varying damping in bearings. An effort is made to study the effect of damping and end-conditions in bearings on the response of a base isolated four-storey RC frame to lateral forces. Damping in bearings is varied from 5 to 40 and response of the structure is compared in terms of period shift, base shear, storey drift and acceleration with those of an equivalent fixed base frame. The base isolated frame is studied with fixed and hinged boundary conditions of base isolation device. The response of base isolated frames has shown a significant reduction as compared to fixed base frame. Rate of response reduction is high with up to 20 damping in bearings. Beyond 20 damping, the rate of response reduction is insignificant. This item ships from multiple locations. Your book may arrive from Roseburg,OR, La Vergne,TN. Bookseller Inventory # 9783659002403

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Bibliographic Details

Title: Effect of Damping in Bearings for Base ...

Publisher: LAP Lambert Academic Publishing

Binding: Paperback

Book Condition:New

Book Type: Paperback

About this title

Synopsis:

Base isolation is a one of the modern earthquake combating techniques in which the superstructure is decoupled from the foundation with the help of some isolation device. Base isolation reduces the demand on superstructure enabling use of lighter structural members. The magnitude of earthquake forces transferred to the superstructure can be affected by varying damping in bearings. An effort is made to study the effect of damping and end-conditions in bearings on the response of a base isolated four-storey RC frame to lateral forces. Damping in bearings is varied from 5% to 40% and response of the structure is compared in terms of period shift, base shear, storey drift and acceleration with those of an equivalent fixed base frame. The base isolated frame is studied with fixed and hinged boundary conditions of base isolation device. The response of base isolated frames has shown a significant reduction as compared to fixed base frame. Rate of response reduction is high with up to 20% damping in bearings. Beyond 20% damping, the rate of response reduction is insignificant.

About the Author:

Poonam, teaching for the last 7 years, obtained with honours her B.Tech. in Civil Engineering and M.Tech. in Structures from Regional Engineering College (now NIT), Kurukshetra. On her thesis, she received the ISTE-Best Thesis National Award in 2005. Currently, she is working at Jaypee University of Information Technology, Solan-HP(IN).

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