Development of preliminary load and resistance factor design of drilled shafts in Iowa : [tech transfer summary].

Sritharan, Sri; Ng, Kam W.; Ashlock, Jeramy C.; Iowa State University. Bridge Engineering Center

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Development of preliminary load and resistance factor design of drilled shafts in Iowa : [tech transfer summary].

2014-10-01
By Sritharan, Sri ; Ng, Kam W. ; Ashlock, Jeramy C.

[PDF-279.03 KB]

English

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Details:

Creators:

Sritharan, Sri ; Ng, Kam W. ; Ashlock, Jeramy C.

Sritharan, Sri ; Ng, Kam W. ; Ashlock, Jeramy C. Less -
Corporate Creators:

Iowa State University. Bridge Engineering Center
Corporate Contributors:

Iowa. Dept. of Transportation ; United States. Federal Highway Administration

Iowa. Dept. of Transportation ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Design Bridge Foundations Case Studies Databases End Bearing Piles Load Factor Resistance (Mechanics)
Publication/ Report Number:

InTrans Project 11-410 ; SPR RB03-012

InTrans Project 11-410 ; SPR RB03-012 Less -
Resource Type:

Brief
Geographical Coverage:

Iowa
Corporate Publisher:

Iowa State University. Institute for Transportation
Abstract:

Despite possessing several advantages, drilled shafts are used infrequently

in Iowa. The soil conditions in several regions of the state are ideal for

using this foundation option. The reasons for the limited use of drilled

shafts can be attributed to the following:

• Lack of a formal process for selection of appropriate foundation types,

especially in evaluating the advantages of drilled shafts over driven

piles

• Limited design guidelines and details for drilled shafts in the Iowa

Bridge Design Manual

• Absence of standard construction inspection checklists for drilled

shafts

Furthermore, the resistance factors for drilled shafts recommended in

the American Association of State Highway and Transportation Officials

(AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design

Specifications (2010) were determined based on a general national

database that does not reflect local design and construction practices and

the regional soil conditions.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e4867f810597e275917dbaa8a346aa67d5f93d6d237f1271b08081d956c15246
Download URL:

https://rosap.ntl.bts.gov/view/dot/28540/dot_28540_DS1.pdf
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Development of preliminary load and resistance factor design of drilled shafts in Iowa : [tech transfer summary].

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