In the case of 15 th building, the structure type to earthquake resistant code is dual system reinforced concrete consists of frame and shear wall. The conclusion for longitudinal reinforcement are, first, planar walls Simplified C and T is 40 to 96 % larger than wall assemblies, except pier P6 is 28 % smaller, second, planar walls Uniform Reinforcing is larger than 7 to 33 % wall assemblies Uniform Reinforcing, except pier P6 is 39 % smaller, third, the planar walls Simplified C and T, planar walls Uniform Reinforcing transversal reinforcement are 1 to 8 % larger than wall assemblies Uniform Reinforcing, except pier P6 is 51 % smaller. The purpose of this study is comparing the planar walls Simplified C and T with planar walls Uniform Reinforcing and wall assemblies Uniform Reinforcing. The analysis is based on three types of design section that are Simplified Compression (C) and Tension (T), Uniform Reinforcing and General Reinforcing. ![]() In ETABS program, there are two types modelling shear wall are planar walls and wall assemblies. The application of shear wall assembly is placed in elevator shafts in buildings or stairwell. Shear Wall assembly modelling as a combined unit to be represented by one beam element. ![]() Shear wall planar modelling as individual walls which each wall was modelled as a vertical beam. ![]() Shear walls modelling as planar or assembly have different assumption in behaviour that will give different responses in forces.
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