Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Development of Variable LRFD Phi Factors for Deep Foundation Design Due to Site Variability
Current load and resistance factored design (LRFD) codes Florida Department of Transportation (FDOT); and American Association of State Highway and Transportation Officials (AASHTO) list resistance factor, values for a variety of deep foundation design approaches e.g., (standard penetration test blow count (SPT N), cone penetration test (CPT), rock compressive strength (q(sub u))). All of the reported values were established from comparison of load test resistance with predictions from nearby borings. However, none of the evaluations accounted for the inherent spatial variability that exists from site-to-site or from layer-to-layer on a site. This site or layer variability may be represented by coefficient of variation, CV, or the variance of the soil/rock properties divided by the mean value. For example, variability(CV) varies from 0.4 to 0.8 for rock and 0.3 to 0.7 for SPT N for soils in Florida.
Development of Variable LRFD Phi Factors for Deep Foundation Design Due to Site Variability
Current load and resistance factored design (LRFD) codes Florida Department of Transportation (FDOT); and American Association of State Highway and Transportation Officials (AASHTO) list resistance factor, values for a variety of deep foundation design approaches e.g., (standard penetration test blow count (SPT N), cone penetration test (CPT), rock compressive strength (q(sub u))). All of the reported values were established from comparison of load test resistance with predictions from nearby borings. However, none of the evaluations accounted for the inherent spatial variability that exists from site-to-site or from layer-to-layer on a site. This site or layer variability may be represented by coefficient of variation, CV, or the variance of the soil/rock properties divided by the mean value. For example, variability(CV) varies from 0.4 to 0.8 for rock and 0.3 to 0.7 for SPT N for soils in Florida.
Development of Variable LRFD Phi Factors for Deep Foundation Design Due to Site Variability
M. C. McVay (Autor:in) / H. Klammler (Autor:in) / M. A. Faraone (Autor:in) / K. Dase (Autor:in) / C. Jenneisch (Autor:in)
2012
134 pages
Report
Keine Angabe
Englisch
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