Research Article:

 Aqeel H. Chkheiwera, Mazin A. Al-Mazini , Mustafa Sh. Zewair
 Civil Engineering Department, Engineering College, University of Basrah

Email address:  aqeelcivil@yahoo.com

ABSTRACT

This study investigated (experimentally and analytically) the influence of
mortar compressive strength (37.4, 48.3 and 60.1 MPa) and the number of
wire mish layer in web and bottom flange on the shear behavior of
ferrocement slender box beams. To achieve these targets, 12 ferrocement box
beams with shear span to effective depth ratio(a/d) of 2.8 (slender beams) are
equipped, tested and assessed, all beams having cross section of 300*175 mm,
length of 2000 mm and hollow core of 180*115 mm. The tested beams were
divided into four groups, each group consists of three beams depending on
compressive strength value, the first group was without wire mish, the second
group was with one layer of wire mish in web and bottom flange, the third
group was two layers of wire mish in web and one in bottom flange and the
fourth group was with two layers of wire mish in web and bottom flange. As
well as ANSYS-11 program was used to analyze these beams by nonlinear
finite element method. Test results showed that, the first cracking and ultimate
loads increases as the wire mish layers in web and bottom flange increases,
the deflection of the tested beams decreases with increasing mortar
compressive strength and wire mish layers in web and bottom flange, the
finite element model gives good agreement with the experimental results
within 9%.

Keywords:  Box Beam, Ferrocement, Shear Behavior

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