STRUCTURAL RESPONSE OF REINFORCED CONCRETE WIDE BEAMS REINFORCED WITH LATTICE GIRDERS

10.22099/ijstc.2014.2413

Abstract

This paper summarizes the test data obtained from an experimental investigation of
reinforced concrete (RC) wide beams reinforced with lattice girders, which can also be described
as one-way slabs, under low-rate (static) concentrated loading applied at their mid-span. Tests
were conducted on lattice girder reinforced and traditionally reinforced beam-type specimens to
investigate the effect of lattice girder on load carrying capacity. Key aspects of structural response
such as the load–deflection behavior, crack patterns, strength and failure modes of the tested
beams were recorded and given in this paper. A total of 6 beams with two different reinforcement
arrangements were tested. Tested beams were simply supported at a span of 2250 mm. All
specimens were tested under static loading and midspan deflections were recorded using a
displacement transducer. Similar stiffness was displayed by the lattice girder reinforced and
traditionally reinforced beams, but higher resistant capacity was shown by the lattice girder
reinforced beams.

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