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Imposed Deformations Measured on a Real Integral Structure: New Airport Terminal Barajas, Madrid, Spain
Petschke, Tobías Philipp and García Díaz, Eduardo and Pérez Caldentey, Alejandro and Corres Peiretti, Hugo
Imposed Deformations Measured on a Real Integral Structure: New Airport Terminal Barajas, Madrid, Spain.
"Journal of Performance of Constructed Facilities", v. 27
Experimental research on imposed deformation is generally conducted on small scale laboratory experiments. The attractiveness of field research lies in the possibility to compare results obtained from full scale structures to theoretical prediction. Unfortunately, measurements obtained from real structures are rarely described in literature. The structural response of integral edifices depends significantly on stiffness changes and constraints. The New Airport Terminal Barajas in Madrid, Spain provides with large integral modules, partially post?tensioned concrete frames, cast monolithically over three floor levels and an overall length of approx. 80 m. The field campaign described in this article explains the instrumentation of one of these frames focusing on the influence of imposed deformations such as creep, shrinkage and temperature. The applied monitoring equipment included embedded strain gages, thermocouples, DEMEC measurements and simple displacement measurements. Data was collected throughout construction and during two years of service. A complete data range of five years is presented and analysed. The results are compared with a simple approach to predict the long?term shortening of this concrete structure. Both analytical and experimental results are discussed.
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