Modeling for preliminary analysis of core wall / Noorul Azmah Abdul Aziz

Reinforced concrete core wall is commonly used in high rise building that can
provide a major part of the bending and torsional resistance in the building structure.
Therefore, the engineer must be a responsible to make a safe design for the human
comfort as well. The study on torsional behaviour of core wall is the most important
thing while designing the high rise building structure. In this project, there are three
models of core wall to be analyzed; core wall with opening, core wall partially closed
by shallow beams and core wall partially closed by deep beams. The minimum and
maximum principle stresses are obtained from the linear finite element analysis to
determine the ultimate load that can be sustained for each model. The loads are
assigned to the model until the model experienced crack and crush. The behaviour of
core wall and the connecting beams subjected to torsional loading also had been
analyzed using LUSAS package version 13.5. The model is not considered with any
constraint effect from slab, beam and column. The beams contributed to the stiffness
in torsion. The ultimate load for core wall partially closed by shallow beams is
greater than core wall partially closed by deep beams.