Following the submission of my structural design package to the client, I am often required to visit the site once construction is underway to help overcome problems associated with the build. When the existing structure is opened up, sometimes the builders discover aspects of the existing construction that weren’t visible during the initial survey. This often changes the assumptions I have made in my design and requires me to modify the structural design or recheck the calculations.
Also, sometimes the builder wants to specify alternative materials or value engineer parts of the scheme which also require me to re-visit my structural design. Any changes to the structural design then need to be resubmitted to the council to be checked by building control.