Seismic Strengthening
Seismic Assessments
A major area of work that Finesse specialise in is the Initial and Detailed Seismic Assessments (ISA or DSA) of buildings to determine their seismic strength in terms of a percentage of New Building Standards (%NBS).
We’ve experienced first hand the evolution of guidance surrounding the assessment of buildings and what is required to address weaknesses to improve the stability and life safety. Our completion of countless seismic assessments along with assessing earthquake damaged buildings, gives us a great understanding of how different buildings behave in seismic events and what needs to be done to make those buildings stronger and safer.
Life safety is paramount to any strengthening works and should be the primary focus of any design. Due to the requirements of the current standards, buildings need to meet minimum percentages of the New Building Standards (NBS). This can sometimes remove the focus of the risk to a buildings’ occupants. Understanding evacuation routes and the occupant’s movements can ensure that these locations are always considered in the design chain.
Technology is constantly evolving, as is our understanding of building performance during extreme events. Through the use of innovative new approaches to analysis and modelling as well as incorporating new seismic technology, Finesse can design buildings that meet or exceed modern standards during a seismic event.
Finesse can also be appointed to carry out peer reviews of third party seismic strengthening schemes, completing a ‘peace of mind’ check before committing to the significant costs associated with this type of work.