THIS UPDATE IS ONLY COMPATIBLE WITH iOS 7This application allows easily, check the equivalence in the reinforced structures in buildings. By introducing the original reinforcement of a structural element to obtain the equivalent number of rebars according to an alternative diameter. This change is always calculated on the side of safety (the program specifies what improvement occurs). In the iPhone version you can quickly calculate basic anchorage length for any type of rebar and concrete. If you are using the application on an iPad you get extra features. In the case of equivalence calculation assembly in a vertical position additional data bars weight, area and diameter are shown. In addition, the iPad version allows the calculation of the basic length of anchor, anchor net length and the length of overlap of the rebars. Remember that the application should be used by input from the top down every time you want to do a new calculation.________________Lem3a is an international center of advanced architecture that is born in Andalucia and synergy between research, design and teaching. Its main objective is to create a collaborative environment where new technologies are the engine of a sustainable and bioclimatic architecture that responds to the needs of the city and society of the Digital Age.