https://iaeme.com/Home/journal/IJCIET 25 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 14, Issue 5, Sep-Oct 2023, pp. 25-38, Article ID: IJCIET_14_05_003 Available online at https://iaeme.com/Home/issue/IJCIET?Volume=14&Issue=5 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication COMPARATIVE STUDY OF REQUIRED BEAM REINFORCEMENT FOR BUILDING STRUCTURE ON DIFFERENT SOIL CONDITIONS AND SEISMIC HAZARD IN SOUTH KALIMANTAN Darmansyah Tjitradi Associate Professor, Department of Civil Engineering, Lambung Mangkurat University, Banjarbaru, Indonesia Eliatun Assistant Professor, Department of Civil Engineering, Lambung Mangkurat University, Banjarbaru, Indonesia Syahril Taufik Associate Professor, Department of Civil Engineering, National Institute of Science and Technology, Jakarta, Indonesia Muhammad Fachrully Azhar Postgraduate Student, Department of Civil Engineering, Lambung Mangkurat University, Banjarmasin, Indonesia Aeron Tjitradi Undergraduate Student, Department of Information Technology, Lambung Mangkurat University, Banjarmasin, Indonesia ABSTRACT The increase in building construction in South Kalimantan in recent years raises the need for planning and structural design that is safe and resistant to all working loads including earthquake loads. Therefore, it is important to evaluate the need for reinforcement beams in buildings based on soil conditions and earthquake potential in cities or districts in South Kalimantan. Structural analysis was performed using STAADPRO V8i Software to obtain maximum inner forces and repeatability designs on the beams. The results of this study show that the earthquake spectrum response graph of the plan for all areas of South Kalimantan has normal behavior, that is, the softer the ground conditions, the greater the base earthquake force. Balangan Regency with Soft Soil (SE) conditions has the largest earthquake force of 244.435 kN and is included in SDC D with the permitted structural system is SMRF, and has a bending reinforcement area on the highest beam pedestal of 942.478 mm 2 (3D20), and bending reinforcement