NEHRP Clearinghouse
- Title
- Optimum Seismic Protection for New Building Construction in Eastern Metropolitan Areas. Progress Through February 1972.
- File
- PB80119282.pdf
- Source
- National Science Foundation, Washington, DC. Engineering and Applied Science., February 1972, 16 p.
- Abstract
- Progress of seven groups investigating various tasks related to seismic protection for new buildings is reported. A building inventory survey has been conducted and a sample report prepared and distributed. An internal study report describes a comparative study of wind and earthquake loadings. A final report is being drafted on risk analysis for Boston and used as a basis for selecting parameters for a simulated ground motion model. Studies on the effect of local soil conditions upon ground motions have dealt mainly with in-situ shear wave velocities, error analyses in basis amplification computations, and the preparation of input for dynamic analysis of structures. In identifying design strategies, a comparison of 9 international seismic provisions is being completed and cost studies associated with design strategies for different seismic intensities are progressing. The first version of the computer program for the nonlinear analysis of building response is ready. The matrix formulation to be used for damage cost estimates is shown. Data from various earthquakes is being used to prepare damage matrices. Factors related to the computer program evaluation of expected future losses and the determination of optimal strategies for building categories were studied.
- Keywords
- Seismic design; Earthquake resistant structures; Seismic waves; Risk analysis; Seismic risk; Earthquake engineering; Secondary waves; Building codes; Wind shear; Earthquakes; Dynamic structural analysis