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    NEAR SURFACE MOUNTED TECHNIQUES IN STRUCTURES

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    Posts : 42
    Join date : 2009-09-05

    NEAR SURFACE MOUNTED TECHNIQUES IN STRUCTURES

    Post  Admin on Fri Oct 09, 2009 10:03 pm

    The use of NSM FRP rods is an effective technique to enhance
    flexural and shear capacity of RC beams. The beams strengthened in bending showed an
    increase in capacity ranging from 25.7% to 44.3% over the control beam. In the beams
    strengthened in shear, an increase in capacity as high as 105.7% could be obtained.
    However, it appears that bond is of critical importance for the effectiveness of this
    technique. The shear capacity of the strengthened beams can be increased by either decreasing the spacing of the NSM rods, or anchoring the rods into the flange, or changing theinclination of the rods from vertical to 45 degrees.Using inclined rods rather than vertical rods is also efficient, while decreasing the spacing between the rods does not produce a remarkable increase in the shear capacity.

      Current date/time is Sat Oct 21, 2017 4:07 am