Álvaro Siza, Pedras Salgadas, Portugal, 2003
This project corresponds to the restauration an adaptaion of an existente building to a termal SPA, we can distinquich two difrente situations:
a) Pre-existence in which keeps most of the walls and roofs being torn down all the tiles floor and ground floors;
b) Extention of the existente structure of new reinfrced concrete strucutres. As for the pre-existence the stone walls are maintained and new reinforced concrete slabs are executed and supported in steel angle brackets.
The expansion will be entirely in concrete, both the slab and the walls and foundation. Conecting the two Bodies is a technical gallery of reinforced concrete with a deth of 3,0 meters, predicting the existence of a high groundwater level. Special cares were taken in lowering the water table by pumping and the crossing of the remaining existente walls where were execute temporary shoring or metallic reinforcement (metal), previously to complete.For the foundatinsm, indirect wells, were the solution chosen in most of the building, ensuring stresses contact in the soil of 25 t/m2 (SPT approx. 30)