A new method to determine the tensile axial force in metallic rods is presented. The method consists of an analytical identification procedure, based on the experimental measurement of the fundamental vibration frequency, and the vertical displacement caused by a concentrated load. These measurements are carried out at the middle of the tested rods. The rods are modelled as tie-beams with two identical elastic rotation springs at the extremities, which schematise the actual constraint level at the end-sections. The spring's rigidity, K, along with the axial force, P, represent the two unknowns of the parametric identification procedure. Knowledge of the above experimental quantities allows K and P to be evaluated using the solving equations of the analytical procedure. Laboratory tests proved the method's reliability and indicated its most appropriate use. The method was successfully applied to the analysis of the rod systems of many historical Italian buildings. A synthesis of these studies is reported in the paper.

Determining the axial force in metallic rods

SORACE, Stefano
1994

Abstract

A new method to determine the tensile axial force in metallic rods is presented. The method consists of an analytical identification procedure, based on the experimental measurement of the fundamental vibration frequency, and the vertical displacement caused by a concentrated load. These measurements are carried out at the middle of the tested rods. The rods are modelled as tie-beams with two identical elastic rotation springs at the extremities, which schematise the actual constraint level at the end-sections. The spring's rigidity, K, along with the axial force, P, represent the two unknowns of the parametric identification procedure. Knowledge of the above experimental quantities allows K and P to be evaluated using the solving equations of the analytical procedure. Laboratory tests proved the method's reliability and indicated its most appropriate use. The method was successfully applied to the analysis of the rod systems of many historical Italian buildings. A synthesis of these studies is reported in the paper.
File in questo prodotto:
File Dimensione Formato  
SEI 1994_Blasi-Sorace.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 7.47 MB
Formato Adobe PDF
7.47 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11390/676123
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact