Selection of Spread Footings on Soils to Support Highway Bridge Structures

Samtani, Naresh C.; Nowatzki, Edward A.; Mertz, Dennis R.; Anderson, Scott A.

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Selection of Spread Footings on Soils to Support Highway Bridge Structures

2010-01-01
By Samtani, Naresh C. ; Nowatzki, Edward A. ; Mertz, Dennis R. ; ...

[PDF-3.20 MB]

English

Details You May Also Like

Details:

Creators:

Samtani, Naresh C. ; Nowatzki, Edward A. ; Mertz, Dennis R. ; Anderson, Scott A.

Samtani, Naresh C. ; Nowatzki, Edward A. ; Mertz, Dennis R. ; Anderson, Scott A. Less -
Corporate Contributors:

Federal Highway Administration Resource Center (U.S.)
Subject/TRT Terms:

[+]

Bridges--Design And Construction Bridges--Foundations And Piers--Testing Spread Footings
Publication/ Report Number:

FHWA-RC-TD-10-001
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Eastern Resource Center
Abstract:

The FHWA believes that spread footings on soils are underutilized because designers encounter one or more of the following obstacles: (a) limited knowledge of AASHTO/FHWA technical references that pertain to spread footings on soils to support bridges; (b) limited knowledge of adequate performance data for spread footings; (c) unrealistic tolerable settlement criteria; (d) overestimation of loads used to calculate settlement; and (e) the use of conservative settlement prediction methods. These obstacles have resulted in institutional biases and overly conservative and excessively costly institutional processes that lead to the unnecessary use of costlier deep foundation systems. The primary goal of this report is to promote the use of spread footings bearing on competent natural soils, improved soils, and engineered fill materials as a routine alternative to deep foundations for support of bridges by addressing the factors identified above. Documented performance data is used to make this case. The report also presents powerful concepts such as construction-point analysis and angular distortions to demonstrate the efficacy of using spread footings. Implementation of these concepts requires only that conventional computations be taken one step further without any requirement for advanced computational skills. The report presents sources of information that agencies and designers can use as references in their project applications. The report contains comprehensive appendices that treat in detail many of the topics discussed in the report. For example, one such appendix provides an introduction to Load and Resistance Factor Design (LRFD) that permits a rational approach to the consideration of spread footings on soils as a feasible alternative to deep foundations.
Format:

PDF
Alternate URL:

https://www.fhwa.dot.gov/engineering/geotech/pubs/rctd10001.pdf
Funding:

DTFH57-09-P-00030
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:c27339b0e7b471004b4ff07c2bbb0d51ce9b858dc9939027f083db52805cba4b
Download URL:

https://rosap.ntl.bts.gov/view/dot/41544/dot_41544_DS1.pdf
File Type:

No Additional Files

More +

Selection of Spread Footings on Soils to Support Highway Bridge Structures

Details:

Supporting Files

You May Also Like