Retrofitting is commonly used terminology for strengthening and/or rehabilitation of structures carried out to increase performance of the structure against different hazards. Retrofitting requires unique solution to each individual building and generalization, as in the new construction, has practical limitations
Book
file:///F:/DRR%20document/book/S%20E%20I%20S%20M%20I%20C-training-Curricuum-part-I-Construction.pdf
UNDP CORD MRB &ASSOCIATES
2013