Prefabricated Cross-Section Table for the Design of Reinforced Concrete Beams by Strength Design Method

Abstract

This article presents a prefabricated cross-sectional table for the design of reinforced concrete beams using the strength design method, to help the design of beams or evaluate the strength of beam sections that has already been designed. The scope is to use fc 5 types: 240, 320, 420, 500, and 600 ksc; 6 sizes of SD-50 main reinforcing steel: 12, 16, 20, 25, 28, and 32 mm; and 6 mm SR-24 and 10 mm. SD-50 beams use 4 widths: 15, 20, 25, and 30 cm, depths in 11 sizes: 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, and 80 cm. All scopes can be arranged in 60 forms. With additional considerations, each form determines the number of main reinforcements to receive tensile strength only, which is min    max. The reinforcement spacing must be standard, and only single stirrup may be used. The table was created by developing a program in Microsoft Visual Basic to help calculate and graphically display the cross-section of the beam. Each section will show beam cross-sectional size and the graphic amount of reinforcing steel. and show the numerical values of d, , Mu,max, and Vu,max. The result is a beam design table, including 4,993 cross-sections in pdf file format that can be viewed through computers or other portable devices. Which engineers who design or supervise work can use it conveniently and as a way to make a table of beams by using other grades of reinforcing steel.