SHEAR STRENGTH OF ANNEALED WIRE FIBER REINFORCED CONCRETE COUPLING BEAM UNDER CYCLIC LOADS
Carter Kandou, Herman Parung, Rudy Djamaluddin, and Arwin Amiruddin
Doctoral Program of Civil Engineering Department of Hasanuddin University
Abstract
The purpose of this study is to determine the value of shear forces for coupling beam using annealed wire fiber. It also discusses the relationship of force-strain in annealed wire fiber of RC coupling beam. The design and construction of the coupling beams remain challenging due to the presence of large reversed-cyclic nonlinear rotation demands combined with large shear forces. Annealed wire fiber used in research with diameter (D) 0.8 mm with fiber length (L) 48 mm (L/D ratio is 60) with fiber composition 0.75% of volume. Two coupling beam test specimens measuring 20 cm x 40 cm with a length of 115 cm with a ratio of Ln / h is 2.875 with the details of 1 beam coupling without fiber (CB-1) and 1 beam coupling with fiber (CBF-1). It can be seen in the variation of normal concrete CB-1 results of an experimental analysis of 113.32 kN and in the fiber concrete CBF-1 can be seen that the experimental shear strength of 163.37 kN then it can be seen the shear strength of the CBF-1 experimental analysis is 44.16% greater than the shear strength experimental CB-1.
Keywords: Shear strength, annealed wire fiber, coupling beam, cyclic loads
Topic: Technology