Figure 1 - uploaded by Joaquin antuña
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Transversal section o f a beam buil t with bricks and re info rced with steel bm's in the lower face of the bea m. T he dotted line re presents the transversal reinforce ment that is not used in every beam tested .
Source publication
The aim of this paper is to study the way in which Eduardo Torroja used the reinforced brick vault, and to show that it is a system widely used for decades in Spain when Torroja begun to employ it. The principal characteristic of this construction system is the use of the brick wall as formwork to buildup a reinforced concrete shell, where the maso...
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Citations
... The roof consists of the repetition of 6.00m wide sections of pinned arches in the key, in which each part of the arch is a variable section shell. These shells are made up of reinforced masonry, so that the necessary formwork is eliminated and replaced by a partitioned vault composed of three brick shells and a reinforced concrete layer (Antuña 2005;Oschendorf & Antuña 2003). This solution shows the formal freedom that can be achieved using reinforced timbrel vaulting. ...
... nº 19 of the AET). But some images showed two different methods used (Antuña 2005). One consisted of building a brick wall with thin hollow brick, using the timbrel vault technique, with the final shape. ...
This paper presents two unknown aspects of the work of the Spanish engineer Eduardo Torroja. One is his approach to the definition of building structures using simple equilibrium methods. The other is his research on new construction systems to build prestressed concrete without the use of high yield limit steel. By analysing several designs made throughout his career we can see that Torroja's work focused constantly on finding new constructions systems. The result was his registration of a number of patents.
The project of prestressed reinforced concrete structures meant, in general, the use of one of the systems protected by the patents available. Now, the use of prestressing is very common but fifty-five years ago this technique was quite expensive, due to the fees that had to be paid for the use of a system protected by a patent. In the 50 's Eduardo Torroja started some research dedicated to finding a way to build prestressed structures without using a patented system. One of his solutions consisted in building a masonry brick wall reinforced with the usual steel bars and, as a result of a special method used for its construction, he achieved a compressed concrete layer that makes it possible .to have a waterproof wall for building a water reservoir. Following his system. Torroja designed a reservoir built in Madrid that still exists but is not in use
