Perbandingan Kuat Geser antara Sengkang Konvensional dan Sengkang "U" pada Balok Beton Bertulang

Abstract

Reinforced concrete as a beam element must be given reinforcement in the form of bending reinforcement and shear reinforcement. Shear reinforcement is used to resist the sliding load that occurs on the beam and has a calculation concept that the shear reinforcement part that serves to hold the shear load is the part in the vertical direction, whereas in the horizontal direction it is not calculated to hold the force load on the beam. This research was conducted to examine the strength of shear reinforcement "U" and compare it with the conventional shear reinforcement strength that is commonly used. This study aims to determine the maximum shear load, maximum shear strength, and the magnitude of the difference between conventional shear reinforcement and "U" shear reinforcement on simple reinforced concrete beams. The research location is at the Concrete Laboratory at the Civil Engineering Study Program, University of North Sumatra. The total sample size of the test specimens was 4, each sample made 2 samples. Variations used is 45 mm sliding spaces, the beam size is 15 cm wide and 15 cm high, with a beam span of 50 cm. Based on the results of the analysis it is known that the maximum load of 62,6 kN and maximum shear strength of 17,46 kN for conventional shear reinforcement, the maximum load of 56,75 kN and maximum shear strength of 14,53 kN for shear reinforcement "U" and the difference in shear strength between the two types of shear reinforcement is 16,78% and happen in load strength is 9,34%. In its use, the "U" shear reinforcement can minimize economic value, but not too far compared to conventional shear reinforcement and the shear strength difference that occurs is also slightly larger.