NEHRP Clearinghouse

Title
Economic Feasibility of Seismic Rehabilitation of Buildings by Base Isolation.
File
PB83197988.pdf
Author(s)
Kelly, J. M.
Source
National Science Foundation, Washington, DC., January 1983, 79 p.
Identifying Number(s)
UCB/EERC-83/01
Abstract
For the purpose of demonstrating the economic feasibility of base isolation as a method of rehabilitation, a building in San Francisco was selected for a design study. The exterior of the building constructed in 1912 as a Masonic Hall, is handsome and the interior elegantly furnished. The building has proved to be a difficult one to rehabilitate by base isolation due to its unusual configuration. The one wall of the Masonic Hall that is in contact with an adjacent building must be cut. The unusual structural configuration of the Hall has also rendered analysis of the structural framing system difficult. However, a base isolation rehabilitation scheme has been developed, drawings have been prepared and the cost to implement the scheme has been estimated.
Keywords
Earthquake resistant structures; Walls; Structural design; Buildings; Earthquake engineering; Foundations; Isolators; Renovating; Dynamic structural analysis