Identifying Seismic Retrofitting Measures for Common Reinforced Concrete Frame Buildings in Nepal

Abstract eng:
Typical Reinforced Concrete (RC) Frame buildings with brick masonry infill are dominantly emerging building typology in the urban areas of Nepal. However, seismic vulnerability of this type of construction, as constructed in Nepal, is presumed very high. To quantify the problem, two prototypes of such buildings, developed based on a survey of the buildings to correctly simulate the building type, were researched. Computer analysis indicated increased seismic risk of such RC buildings of 2 stories and higher, the buildings lack both strength and ductility. The main vulnerability factors are inferior masonry quality, lean frames and above all lack of attention to reinforcement details. As Nepal lies in a very high seismic zone, an immediate attention is imperative to improve the seismic resilience of such buildings. Out of the various available methods, wall jacketing and

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