Assessment and evaluation of timber piles used in Nebraska for retrofit and rating.

Mohammadi, Alireza; Gull, Jawad H.; Taghinezhad, Ramin; Azizinamini, Atorod

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Assessment and evaluation of timber piles used in Nebraska for retrofit and rating.

2014-04-01
By Mohammadi, Alireza ; Gull, Jawad H. ; Taghinezhad, Ramin ; Azizinamini, Atorod

File Language:

English

Details

Creators:

Mohammadi, Alireza ; Gull, Jawad H. ; Taghinezhad, Ramin ; Azizinamini, Atorod
Corporate Creators:

Florida International University. Dept. of Civil and Environmental Engineering
Corporate Publisher:

Nebraska. Dept. of Roads
Subject/TRT Terms:
Resource Type:

Tech Report
Geographical Coverage:

United States
Description:

The cost of an effective retrofitting and rehabilitation of timber piles is less than cost of replacing the piles. However, some of the retrofit options used in Nebraska failed to result in the expected performance levels. Further, design and detailing of different retrofit schemes are not well defined. Therefore, the objective of this project was to develop a set of guidelines to retrofit damaged timber piles.

Different types of damages, methods of assessment, and repair procedures of the timber piles were reviewed. Few repair methods were selected for detail investigation. Five full scale timber pile specimens with different level of damages were prepared. The damage in each specimen was repaired by using FRP wrap to capsulate the damaged region and filling it with either resin or grout or resin and gravel. Guidelines are provided carry out the repair of timber piles in field using the selected repair methods. Ultimate load tests were carried out on the specimens to evaluate the effectiveness of the repair methods.

Test results show that grout is more effective in repairing large cavity-type damages compared to resin. Resin might be more effective for repairing cracks and small cavities in timber piles. Further, the failure load of the repaired pile specimens was at least five times greater than the design load capacity of the timber pile.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/27770/dot_27770_DS1.pdf
File Type:

[PDF - 3.70 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:ae11220bcc6898fb28e6eacd1001dc30a80b6daaf57dadc0a5007a38f7f58efd

File Language:

English

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