CRACK PATTERNS IN CONCRETE BEAM USING CONTINUOUS SHEAR REINFORCEMENT WITH NUMERICAL METHOD mohammad erfan(a), yosimson P Manaha(a), Hadi Surya W(a), Yandra Bili, managi radar
Malang National Institute of Technology
Abstract
Often the collapse in building construction begins with failure caused by the shear strength of a structural element that is unable to withstand the shearing force caused by the external load acting. Many factors cause this failure, one of which is the installation of stirrup reinforcement which serves to withstand shear forces acting on structural elements, one of which is reinforced concrete beams.
For the procedures and requirements regarding stirrup reinforcement, it is regulated in SNI Regulation 2847:2019 Requirements for Structural Concrete for Buildings, the regulation states that there are 2 types of stirrups, including upright stirrups and inclined stirrups. The slanted stirrups described in the SNI are installed one by one, in other words, not continuous or continuous. This of course will have a different value of shear strength in the cross section of the reinforced concrete beam if the inclined stirrups are installed continuously.
In this study, a numerical test will be carried out on reinforced concrete beams with 2 simple supports and a P load placed in the middle of the span. The quality of concrete used is f^c 20 Mpa and the quality of plain reinforcement is BJTP 280 with a diameter of 10 longitudinal reinforcement and 6 stirrup reinforcement. This test will be carried out under 2 conditions, namely the upright stirrups concrete beams and continuous inclined stirrups concrete beams and using the Abaqus and Diana FEA applications.
