Abstract—The first experimental dynamic parameters of a
large spatial FRPs (Fiber Reinforced Polymers) pultruded
structures are presented in this research. This construction is a
temporary structure realized to accommodate future
restoration work and to cover a historic church of Santa Maria
Paganica stroked and partially collapsed by 2009 L’Aquila
earthquake. The covering structure is an all FRP
spatial-reticular with elements made by pultrusion process,
connection plates by bag molding process and steel bolts. The
dynamic behavior was analyzed using the ambient vibrations
test to measure the mode of vibration, frequencies,
displacements and damping ratios of the structures using a
modal identification of output-only systems. The operational
modal analysis OMA has been carried out to identify the modal
characteristics through poly-reference Least Square Complex
Frequency-domain (pLSFC) estimator.
Index Terms—All-FRP structures, dynamic parameters,
ambient vibrations test, modal identification.
All-FRP structures, dynamic parameters,
ambient vibrations test, modal identification.
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Cite: G. Boscato, A. Dal Cin, and S. Russo, "Dynamic Identification of All-FRP Pultruded Structures," International Journal of Engineering and Technology vol. 7, no. 2, pp. 81-85, 2015.
