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The Behavior of Clay Brick Masonry Wall with Glass Fiber Reinforced Polymer Strengthening

1st International Conference on Rehabilitation and Maintenance in Civil Engineering (JCRMCE), Solo, 21-22 March 2009, ISBN No.979-498-457-4
Proceeding from JBPTPPOLBAN / 2013-10-28 09:19:34
Oleh : Mardiana Oesman; Jonie Tanijaya; Sepry Rantesalu (mardianaoesman@gmail.com)
Dibuat : 2013-10-25, dengan 1 file

Keyword : diagonal shear, ductility, flexural loading, GFRP, Strengthening

This research studies on clay brick masonry wall with glass reinforced fiber polymer (GRFP) st.engthened. The experimental study was carried out to investigate the influence of GRFP on brick masonry wall under diagonal shear loading, and on brick masonry beam under flexural loading. Two specimens of the brick masonry wall, with and without GRFP strengthened, were tested under diagonal shear loading based on ASTM E519 standard. The results of experimental show that maximum diagonal shear loading on the wall with GRFP was less then the one without GRFP; it occur caused by undistributed loading in the cross section of the brick masonry inside GRFP layers. The experimental results also show that initial failure was occurred by crushing of the weak layer (which was the brick masonry layer, in the middle of the strong GRFP layers) around the loading point that caused GRFP layer pull off from the masonry layer, and then local failure occurred. The result shows that peeling phenomenon occurring at the interface between the epoxy resins utilized for glueing GFRP and the masonry panel. The adherence issue controls the failure of masonry panels due to the low tensile strength of masonry bricks. The second experimental study was conducted to know the behaviour of the brick masonry layers under flexural loading, with and without GRFP strengthened. Six specimens of the brick masonry that consisted of different amount of brick for each specimen (7, 13, and 16 bricks) were tested based on ASTM E518 standard. The results show that the length of the specimens affects the flexural capacity of the beam brick masonry. The shortest (the least amount of the brick in the specimen) the specimen, the highest the flexural capacity; this behaviour is the same as the beam under flexural loading, in general. It was observed that when the length of the masonry beams with GFRP strengthening was increase, the flexural capacity was increase too. For the 16 - clay brick masonry beam, the flexural capacity was increased up to 260 times compared to the control specimen. GFRP strengthened on the masonry increased ductility; for the 7 -clay brick masonry beam, the ductility was increased up to 38 times compared to the control specimen. The results show that GRFP affect the modulus of rigidity (G) of the masonry; the modulus of rigidity of the masonry with GRFP was 3.2 times greater then the masonry without GRFP. All specimens failed by crushing of the masonry.

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ID PublisherJBPTPPOLBAN
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NegaraIndonesia
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E-mail Administratorhelmi.purwanti@polban.ac.id
E-mail CKOhelmi.purwanti@polban.ac.id

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