Seismic Repair, Restoration and/or Upgrading of Existing Buildingsby Vitelmo V. Bertero, Univ of California, United States,
Abstract: The ultimate goal of this paper is to discuss the selection of the most efficient (optimal) strategies and techniques for upgrading an existing building. To achieve this goal, it was considered necessary to achieve the following objectives: (1) to review briefly the assessment and control of seismic risk; (2) to discuss the requirements for a reliable seismic vulnerability assessment of a given building; (3) to review the factors to be considered in the selection of an efficient strategy for upgrading an existing building; and (4) to review the different techniques currently available for upgrading buildings and to discuss their advantages and disadvantages. The major part of this paper is devoted to: (1) developing an efficient strategy for upgrading the Centro Postal Mecanizado building's structural system; and (2) reviewing the upgrading scheme proposed by a consulting engineering firm in Mexico City as well as other retrofitting schemes that have been proposed and/or are under investigation.
Subject Headings: Seismic tests | Existing buildings | Seismic effects | Earthquake resistant structures | Rehabilitation | Historic preservation | Structural analysis | Building design | Structural systems | Load and resistance factor design | Mexico City
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