Finite Element Model Updating of Senyuva Historical Arch Bridge Using Ambient Vibration Tests

Abstract

This paper describes a historical arch bridge; its analytical modelling, modal testing and finite element model (FEM) updating. For this purpose, Senyuva historical arch bridge which is built in 1696 and located in Camlihemsin, Rize, Turkey, is selected as an application. 3D FEM of the bridge is modelled using ANSYS software to obtain analytical dynamic characteristics such as natural frequencies and mode shapes. Then, operational modal analysis using ambient vibrations is performed to attain dynamic characteristics experimentally. Human walking and wind are used as natural excitation. The output-only modal parameter identification is carried out using the Peak Picking method in frequency domain and the Stochastic Subspace Identification method in time domain. After, analytically and experimentally identified dynamic characteristics compared with each other and FEM of the historical bridge is updated to minimize the differences between modal parameters by changing uncertain modelling parameters such as boundary conditions. As a result, differences between the natural frequencies are reduced from 27% to 3% and good agreement is found between analytical and experimental dynamic characteristics after FEM updating.

Ambient vibration recording on the Maddalena Bridge in Borgo a Mozzano (Italy): data analysis.

“…Recently, many authors have devoted considerable attention to the dynamic assessment of ancient masonry bridges [Aoki et al 2007, Bayraktar et al 2009, Bayraktar et al 2015, Boscato et al 2010, Giof-fré et al 2008, Perez-Garcia et al 2011, Sevim et al 2011. In this context, the present paper reports on a vibration measurement campaign on the Maddalena Bridge, also known as "Ponte del Diavolo", in Borgo a Mozzano, near Lucca (Figure 1).…”

Dynamic response of masonry minarets strengthened with Fiber Reinforced Polymer (FRP) composites

“…But, removing test samples from the historical masonry structures such as minarets was not allowed by the related institution. So, initial material properties were taken from the literature (Frunzio et al, 2001;Doangün et al, 2006;Gentile and Saisi, 2007;Bayraktar et al, 2008;Bayraktar et al, 2009). For the structural strengthening of the minaret, woven carbon fiber fabric material was used.…”

Stroboholography for the Analysis of Vibration Modes of Mechanical Systems

“…For the analysis of vibrational processes of the objects, which are excited by harmonic and nonharmonic signals it is very important to carry out the qualitative and quantitative analysis of vibrations distribution on the surface within a single period [18,19]. In this case, it is reasonable to use the stroboholography method.…”