I worked several times for this civil engineering studio, owned by my father an his associate, Raúl Curutchet. Here I did mostly drafting of concrete and steel structures for buildings of different sizes and complexities. «Cleaning» the architectural plans and keeping the essential (that is, the structure) has always been interesting form the point of view of an architect (less is more? oftentimes…)
Here´s a couple of plans I did for them, the first one is a plan of an existing concrete structure than was to be underpinned, so we drew a plan of the position and number of the buttresses to be added.

The second one is a detail of a reinforced concrete stairs belonging to a typical housing project.