Effects of intermediate anchors on end anchored carbon fibre reinforced polymer laminate flexurally strengthened reinforced concrete beams

M. Z. Jumaat, Md Ashraful Alam

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This research presents the results of an experimental study to look into the effects of intermediate anchors on end anchored CFRP laminate strengthened beams. Three beams of 125×250×2300 mm in dimensions were cast. Out of these, one beam was left un-strengthened and acts as the control beam and another two beams were strengthened with CFRP laminates. Both strengthened beams were end anchored to prevent premature end peeling. From the strengthened beams, one beam was intermediate anchored in the shear span to prevent premature shear failure. The anchorage lengths provided by the end and intermediate anchors were of 200 and 40 mm, respectively. The results showed that the intermediate anchors in shear span zone prevented premature shear failure. Result also showed that the strengthened beams with intermediate anchors had significant effects on failure loads, failure modes, strain characteristics, deflections and cracking patterns over the end anchored strengthened beam.

Original languageEnglish
Pages (from-to)142-148
Number of pages7
JournalJournal of Applied Sciences
Volume9
Issue number1
DOIs
Publication statusPublished - 31 Mar 2009

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Anchors
Carbon fibers
Laminates
Reinforced concrete
Carbon fiber reinforced plastics
Polymers
Peeling
Failure modes
Loads (forces)

All Science Journal Classification (ASJC) codes

  • General

Cite this

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abstract = "This research presents the results of an experimental study to look into the effects of intermediate anchors on end anchored CFRP laminate strengthened beams. Three beams of 125×250×2300 mm in dimensions were cast. Out of these, one beam was left un-strengthened and acts as the control beam and another two beams were strengthened with CFRP laminates. Both strengthened beams were end anchored to prevent premature end peeling. From the strengthened beams, one beam was intermediate anchored in the shear span to prevent premature shear failure. The anchorage lengths provided by the end and intermediate anchors were of 200 and 40 mm, respectively. The results showed that the intermediate anchors in shear span zone prevented premature shear failure. Result also showed that the strengthened beams with intermediate anchors had significant effects on failure loads, failure modes, strain characteristics, deflections and cracking patterns over the end anchored strengthened beam.",
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