SOBOPRET, a subsidiary of SOBOCE S.A., contracted us in 2022 to verify and design its prestressed joists. In this project we made the study and verification of all types of slabs, for single and double joists, with spacings of 30, 40, 50, 50, 60, 70 and 80 centimeters. The result is that, by modifying some joists, we have verified that they can be used up to a span of 9.70 meters in housing structures with the securities given in the Bolivian standards. This project was carried out using our CID program with which we have calculated the interaction diagrams of rupture, cracking, non-traction and serviceability.

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