Vibration and damping characteristics of the masonry wall strengthened with bonded fibre composite patch with viscoelastic adhesive layer

Salaheddine Laib , Sid Ahmed Meftah , Hadj Youzera , Noureddine Ziane , Abdelouahed Tounsi

Abstract

The present paper treats the free vibration problem of the masonry wall strengthened with thin composite plate by viscoelastic adhesive layer. For this goal two steps are considered in the analytical solution. In the first one, an efficient homogenisation procedure is given to provide the anisotropic properties of the masonry wall. The second one is dedicated to purpose simplified mathematical models related to both in-plane and out-of-plane vibration problems. In these models, the higher order shear theories (HSDT's) are employed for a more rigours description of the shear deformation trough the masonry wall and the composite sheet. Ritz's method is deployed as solution strategy in order to get the natural frequencies and their corresponding loss factors. The obtained results are validated with the finite element method (FEM) and then, a parametric study is undertaken for different kinds of masonry walls strengthened with composite sheets.

Key Words

strengthened masonry structures; masonry homogenisation; damping effect; free vibration; viscoelastic materials; composite materials; height shear beam and plate theories; Ritz's method

Address

Salaheddine Laib, Sid Ahmed Meftah — Laboratoire des Structures et Materiaux Avances dans le Genie Civil et Travaux Publics, Universite Djillali Liabes, Sidi Bel Abbes, Algerie
Hadj Youzera — Laboratoire d'Etude des Structures et de Mecanique des Materiaux, Departement de Genie Civil, Faculte des Sciences et de la Technologie, Universite Mustapha Stambouli B.P. 305, R.P. 29000 Mascara, Algerie
Noureddine Ziane — Laboratoire des Structures et Materiaux Avances dans le Genie Civil et Travaux Publics, Universite Djillali Liabes, Sidi Bel Abbes, Algerie
Abdelouahed Tounsi — YFL (Yonsei Frontier Lab), Yonsei University, Seoul, Korea; Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals, 31261Dhahran, Eastern Province, Saudi Arabia; Material and Hydrology Laboratory, Faculty of Technology, Civil Engineering Department, University of Sidi Bel Abbes, Algeria

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