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While damage and collapse owing to soft story are frequently observed in buildings, they can also be developed in other types of structures. The lower level containing the concrete columns behaved as a soft story in that the columns were unable to give adequate shear resistance during the earthquake.
Typically the most economical way of retrofitting such as a building is by adding proper bracing to soft stories. Also has been tired to investigate on adding of bracing in diverse arrangements to structure in order to reduce soft story effect on seismic response of building.
It is lead to assess the susceptibility level of existing multi-storied buildings so that they can be retrofitted to have the minimum requirements. This will aid in minimizing the impending damages and catastrophes.
EFFECT OF SOFT STORY ON STRUCTURAL RESPONSE OF HIGH
RISE BUILDINGS
Harsh
structural damage suffered by numerous modern buildings during recent
earthquakes illustrates the importance of avoiding abrupt changes in lateral
stiffness and strength. Modern earthquakes that occurred have shown that a big
number of existing reinforced concrete buildings are vulnerable to damage or
even collapse during a strong earthquake.
While damage and collapse owing to soft story are frequently observed in buildings, they can also be developed in other types of structures. The lower level containing the concrete columns behaved as a soft story in that the columns were unable to give adequate shear resistance during the earthquake.
Typically the most economical way of retrofitting such as a building is by adding proper bracing to soft stories. Also has been tired to investigate on adding of bracing in diverse arrangements to structure in order to reduce soft story effect on seismic response of building.
It is lead to assess the susceptibility level of existing multi-storied buildings so that they can be retrofitted to have the minimum requirements. This will aid in minimizing the impending damages and catastrophes.
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