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This section on earthquake resistant housing with reinforced concrete load-bearing structure including RC shear walls is currently being developed.
Buildings are considered as such when having implemented in their layout at least a couple of structural walls in each principal direction. In modern codes for earthquake-resistant design
are set limits which define the percentage of base shear that should be carried by the walls. Designing solely structural walls along the staircase and/or elevator core in a building
may not be sufficient for the building to qualify as structural wall system. Furthermore depending on the architectural layout of vertical communication such design may
lead to dangerous torsional effects.
Therefore is necessary to design isolated freely distributed shear walls in plan in both principal directions of the building plan.
In cases of architectural planning incorporating large bay windows or entire cantilevered portions of upper stories of buildings deep RC girders are required that further lead to implementing RC shear walls in the plan of the building.
Similarly in cases where vertical and/or horizontal irregularity (according to modern codes) is present is necessary to design RC shear walls in the structural layout.
This structural type is common when upgrading existing buildings with RC frames. Adding new RC structural walls is often feasible and efficient design strategy.
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