In the past, older buildings were routinely demolished. Today, because owners and the public are concerned about conservation and adaptive reuse, older buildings are more likely to be renovated than demolished. Many of the design and analysis principles used for new structures also apply to renovated structures. Also, if the cost of new work associated with renovating an existing structure is a substantial portion of the replacement cost of the existing structure, then the existing structure must be made to conform to the requirements of a new building under many building codes.
However, the engineering approach is dissimilar from new construction as the mindset is focused on checking and evaluating “what’s there”. SDL’s experience, code knowledge and creativity allow us to best determine how to make an existing structure meet current codes or engineer and economical retrofit.