New concept and solutions for post-seismic assessment and strengthening of buildings

Published in Scientific Papers. Series E. Land Reclamation Earth Observation & Surveying, Environment Engineering, Vol. I
Written by Claudiu-Sorin DRAGOMIR, Claudiu-Lucian MATEI, Daniela DOBRE, Emil-Sever GEORGESCU

Due to the time evolution of the design provisions, there are buildings that were designed decades ago, using less stringent provisions. Thus, when the earthquake is produced, there are many cases where the buildings are badly damaged. Structural engineering is closely related to parameters such as acceleration, velocity, displacements, and spectral composition, therefore, with the widespread use of strong motions apparatus, in the ‘70s they started seismic instrumentation with help of seismic stations located in the buildings, dams and bridges. According to the modern approach of the post-seismic investigation the damage building assessment should be clearly foreseen and properly planned in order to obtain dynamic parameters for the analysis. The objectives of the paper are to present both a new concept for building performances assessment and a modern solution for building strengthening. All the aforementioned ideas are illustrated through a study case. The dynamic parameter evolution of 3D model of reinforced concrete at natural scale it will be analysed. In case of masonry panels inserted in reinforced concrete frames a modern and efficient solution is panel strengthened with Carbon Fibers as fabrics and plates. Therefore, the researches on the strengthening solution effectiveness of masonry walls are presented. Experiments on a large scale of modular elements of masonry buildings, tested and strengthened with CF were carried out in Research and Testing Laboratory on Materials, Components and Structures for Buildings - INCERC at universal press 4MN, submitted them to compression on diagonal direction. The results were demonstrated that the application of CF on the masonry panels is efficient, but to optimize costs it is necessary to review the size and disposal of plates used.

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Dragomir C. S., Matei C. L., Dobre D., Georgescu E. S., 2012, New concept and solutions for post-seismic assessment and strengthening of buildings. Scientific Papers. Series E. Land Reclamation Earth Observation & Surveying, Environment Engineering, Vol. I, ISSN-L 2285-6064, 20-27.

 


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To be cited: SCIENTIFIC PAPERS LAND RECLAMATION, EARTH OBSERVATION & SURVEYING, ENVIRONMENTAL ENGINEERING.
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