A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Design Decision Analysis
This paper describes and illustrates a procedure for organizing into a useful format the information required to arrive at a balance between the cost of earthquake resistant design and the risk of damage and death vs. future earthquakes. The procedure, Seismic Design Decision Analysis (SDDA), is illustrated in the presentation of a pilot application involving buildings of moderate height in Boston. The heart of the methodology is examination, in probabilistic terms, of the damage which one earthquake will cause to a particular building system designed according to a particular design strategy. This evaluation is repeated for different levels of earthquakes, different design strategies, and for differnt types of buildings. The lateral force requirements for 5- to 20-story apartment buildings in Boston are studied. This paper discusses the results for reinforced concrete buildings. All designs have to resist the wind loading required by the Boston Building Code: 20 psf. Drift requirements under both wind (1/600) and earthquake (1/300) were considered as well as permissible stresses. Five different design strategies were considered. Four of these are the requirements for seismic zones 0, 1, 2, and 3 of the UBC, 1970 edition. The fifth design strategy, designated as superzone S, required forces twice as great as for zone 3.
Seismic Design Decision Analysis
This paper describes and illustrates a procedure for organizing into a useful format the information required to arrive at a balance between the cost of earthquake resistant design and the risk of damage and death vs. future earthquakes. The procedure, Seismic Design Decision Analysis (SDDA), is illustrated in the presentation of a pilot application involving buildings of moderate height in Boston. The heart of the methodology is examination, in probabilistic terms, of the damage which one earthquake will cause to a particular building system designed according to a particular design strategy. This evaluation is repeated for different levels of earthquakes, different design strategies, and for differnt types of buildings. The lateral force requirements for 5- to 20-story apartment buildings in Boston are studied. This paper discusses the results for reinforced concrete buildings. All designs have to resist the wind loading required by the Boston Building Code: 20 psf. Drift requirements under both wind (1/600) and earthquake (1/300) were considered as well as permissible stresses. Five different design strategies were considered. Four of these are the requirements for seismic zones 0, 1, 2, and 3 of the UBC, 1970 edition. The fifth design strategy, designated as superzone S, required forces twice as great as for zone 3.
Seismic Design Decision Analysis
R. V. Whitman (author) / J. M. Biggs (author) / J. Brennan (author) / C. A. Cornell (author) / R. de Neufville (author)
1974
33 pages
Report
No indication
English
Building Industry Technology , Earthquake resistant structures , Structural design , Earthquakes , Concrete construction , Design standards , Building codes , Earth movements , Probability , Massachusetts , Earthquake engineering , Seismic design , Seismic risk , Ground motion , Boston(Massachusetts)
Decision analysis for seismic retrofit of structures
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