New methods according to E DIN EN 13791:2018

Existing structural frameworks need to be recalculated in accordance with currently applicable standards owing to building conversion and subsequent changes in load levels. Concrete compressive strength is generally considered to be the key parameter for structural frameworks consisting of reinforced concrete. However, the related documentation pertaining to the construction phase of existing buildings or structures is often missing, which is why a comprehensive structural survey is necessary for determining the characteristic in-situ concrete compressive strength. DIN EN 13791/A20:2017...