Imposed Deformations Measured on a Real Integral Structure: New Airport Terminal Barajas, Madrid, Spain
Publication: Journal of Performance of Constructed Facilities
Volume 27, Issue 5
Abstract
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 predictions. 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 investigators with large integral modules, partially post-tensioned concrete frames, cast monolithically over three floor levels with an overall length of approximately 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 gauges, thermocouples, hand-held mechanical strain gauge measurements, and simple displacement measurements. Data were collected throughout construction and during two years of service. A complete data range of five years is presented and analyzed. Using a simple approach, the results are compared to predict the long-term shortening of this concrete structure. Both analytical and experimental results are discussed.
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Acknowledgments
The work presented herein was funded by the Ministry of Public Works and Transport. It was only possible to establish and execute the instrumentation with the thorough support of the owner AENA, the contractor DRAGADOS, and the consulting company FHECOR. Thanks are given to Eduardo Monzón of the company Promedy, Protección, Medición y Analysis S.L. and to Tomás Fariñas of Grupo de Medidas Ibérica S.L., both of whom provided extensive support on the supplied measuring devices. The authors also thank Jose Torrico for his valuable input throughout this study, as well as Jesús Sánches Ligero of DRAGADOS and Jesús Mendiluce of AENA for their assistance and support.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 27 • Issue 5 • October 2013
Pages: 508 - 518
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Sep 14, 2011
Accepted: Apr 3, 2012
Published online: Apr 10, 2012
Published in print: Oct 1, 2013
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