|
|
|
Title: RELIABILITY EVALUATION OF AASHTO DESIGN EQUATIONS FOR DRILLED SHAFTS
Accession Number: 00740657
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: A reliability evaluation of the American Association of State Highway and Transportation Officials (AASHTO) design equations for drilled shafts is described. The evaluation computed the variance of a data base containing load tests to failure on 30 straight-sided drilled shafts using first-order, second-moment methods applied to the AASHTO design equations. The computed variance was compared with the measured variance of the data base. The measured variance was found to exceed the computed variance for approximately 75% of the load tests. This is believed to result from important factors affecting the axial capacity of the drilled shaft not being included in the AASHTO design equations. It is speculated that the missing factors are related to common variations in construction practices for drilled shafts.
Supplemental Notes: This paper appears in Transportation Research Record No. 1582, Centrifuge Modeling, Intelligent Geotechnical Systems, and Reliability-Based Design.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Isenhower, W MLong, J HPagination: p. 60-67
Publication Date: 1997
Serial: ISBN: 0309061571
Features: Figures
(5)
; References
(12)
; Tables
(2)
TRT Terms: Identifier Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Data and Information Technology; Geotechnology; Highways; I42: Soil Mechanics
Files: TRIS, TRB, ATRI
Created Date: Sep 10 1997 12:00AM
More Articles from this Serial Issue:
|
