Comparative study on dynamic parameters and seismic demand of pultruded FRP members and structures
Source abstract
Abstract
Abstract Pultruded FRP (Fiber Reinforced Polymer) material can be considered as a structural material for civil engineering applications when it guarantees structural reliability and higher efficiency under different loading conditions, dead loads, live loads, wind and seismic actions, during the serviceability state. The overall structural behaviour in static field of FRP members, columns-beams joints and connections and framed structures are well known, while the dynamic response is not yet widely investigated. Through the analysis of modal shapes, resonance frequencies and damping ratios of different pultruded members (beams, columns, beam-column joints) and structures the performance relationships in the dynamic field have been defined. As shown by the experimental and analytical results the dynamic properties of pultruded FRP material are characterized by high periods of vibration, low frequencies and a spontaneous dissipative capacity of the seismic action due to its low mass; in the design approach this latter aspect has to be balanced by the high deformability. The analyses allow to define the performance laws of structural elements made of pultruded FRP material that are preparatory for the final recommendation in the seismic design criteria of all-FRP structure addressed in this paper.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Structural Load-Bearing Analysis · Structural Analysis and Optimization
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