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Open AccessArticle

Experimental Investigation of the Behavior of Self-Form Segmental Concrete Masonry Arches

1
Department of Reconstruction and Projects, University of Baghdad, Baghdad 10071, Iraq
2
Civil Engineering Department, College of Engineering, University of Baghdad, Baghdad 10071, Iraq
*
Author to whom correspondence should be addressed.
Fibers 2019, 7(7), 58; https://doi.org/10.3390/fib7070058
Received: 6 June 2019 / Revised: 23 June 2019 / Accepted: 29 June 2019 / Published: 2 July 2019
(This article belongs to the Special Issue Carbon Fiber Reinforced Composites 2019)
This research aims to introduce a new technique—off-site and self-form segmental concrete masonry arches fabrication, without the need of construction formwork or centering. The innovative construction method in the current study encompasses two construction materials forms the self-form masonry arches, wedge-shape plain concrete voussoirs, and carbon fiber-reinforced polymer (CFRP) composites. The employment of CFRP fabrics was for two main reasons: bonding the voussoirs and forming the masonry arches. In addition, CFRP proved to be efficient for strengthening the extrados of the arch rings under service loadings. An experimental test was conducted on four sophisticated masonry arch specimens. The research parameters were the Keystone thickness and the strengthening of the self-form arch ring at the intrados. The major test finding was that the use of thicker Keystone alters the behavior of the self-form arch and considerably increases the load carrying capacity by 79%. Partial strengthening of the intrados with CFRP fabrics of typical arch ring Keystone resulted considerable increase in the debonding load of fabrication CFRP sheets by 81%, increase in the localized crushing load by 13% and considerably increase voussoir sliding load by 107%. View Full-Text
Keywords: masonry arches bridges; self-form segmental arches technique; CFRP; strengthening masonry arches bridges; self-form segmental arches technique; CFRP; strengthening
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Abdulhameed, A.A.; Said, A.I. Experimental Investigation of the Behavior of Self-Form Segmental Concrete Masonry Arches. Fibers 2019, 7, 58.

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