102,029 research outputs found
Base isolation: design and optimization criteria
No full textUse of new antiseismic techniques is certainly suitable for buildings of strategic importance and, in general, in the case of very high risk. For ordinary buildings, instead, the cost of base isolation system should be balanced by an equivalent saving in the structure. In this paper the comparison criteria have been first defined, and then a large numerical investigation has been carried out to analyze the effectiveness and theeconomic suitability of seismic isolation, using elastomeric isolators and sliders, in reinforced concrete buildings
Dynamic test of a pedestrian bridge as part of safety assessment
No full textThe results of the dynamic tests carried out on the approach pedestrian bridge to Civita di Bagnoregio, Italy, are shown. The structural elements were in bad conditions due to the carbonation of concrete. The results of the experimental campaign allowed to state that the structural behaviour of the bridge was quite similar to that we could expect. Under ambient vibrations the structure behaved as a whole, formed by the piers linked at their tops by means of the beams
Optimization criteria in design of seismic isolated building
No full textUse of new anti-seismic techniques is certainly suitable for buildings of strategic importance and, in general, in the case of very high risk. For ordinary buildings, instead, the cost of base isolation system should be balanced by an equivalent saving in the structure. The comparison criteria have been first defined, then a large numerical investigation has been carried out to analyze the effectiveness and the economic suitability of seismic isolation in concrete buildings. © 2008 American Institute of Physics
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