NEHRP Clearinghouse

Title
Development of Procedures to Enhance the Performance of Rehabilitated URM Buildings. Appendices.
File
PB97196919.pdf
Author(s)
Lizundia, B.; Holmes, W. T.; Longstreth, M.; Kren, A.; Abrams, D. P.
Source
National Inst. of Standards and Technology (BFRL), Gaithersburg, MD., August 1997, 370 p.
Abstract
Building damage data from three earthquakes was analyzed to find trends in damage patterns and relationships between damage to retrofitted buildings and several ground motion parameters. The selected earthquakes were the 1994 Northridge Earthquake, the 1987 Whittier Narrows Earthquake, and the 1989 Loma Prieta Earthquake. The primary goal of this task was to investigate damage to the retrofitted URM bearing wall buildings, correlate it with different ground motion parameters, and attempt to relate general damage and element-specific damage with ground motion to show which building elements are the most vulnerable and at what level of shaking they begin to fail. The ground motion predominant at a damage state is of particular interest in projecting the performance of standard West Coast practice to moderate seismic zones.
Keywords
Damage assessment; Seismic design; Construction materials; Earthquake damage; Anchors (Structural); Design criteria; Cost estimation; Holes (Openings); Retrofitting; Epoxies; Buildings; Cost effectiveness; Earthquake engineering; Ground motion; Cost benefit analysis; Dynamic structural analysis; Grouts; Stiffening; Earthquake resistant structures; Unreinforced masonry; Bracing; URM (Unreinforced Masonry)