Masonry Column Reinforced by FRP Wrapping: Behavior and Numerical Analysis

Abstract

A numerical analysis for masonry columns is presented in this paper. The behavior and character of deformation of compressed unreinforced masonry columns is investigated and compared with the deformation of masonry columns reinforced by FRP wrapping. The experimental program is part of a research project NAKI [1]. Both, the bricks and the mortar are modeled as 3D continuum and to the interface between these two materials a non-linear contact law is assigned. The contact between reinforcement and masonry support is considered as perfectly-adherent. Two different cases are simulated - the ratio of Young ́s modulus of brick and Young’s modulus of mortar is 5:1, respectively 1:5. For all simulations the commercial software package ABAQUS was used and the obtained numerical results are discussed.

Reinforced Masonry Column’s Analysis: The Influence of Rounded Corners

“…1). Masonry units and mortar joints were not modelled separately [4], however the homogenized properties were applied from masonry column. The distribution of stress in compressed masonry column is strongly influenced by the present of mortar joints.…”

Solid Burnt Bricks’ Tensile Strength

“…Under concentric compressive load of masonry column, bricks are gradually damaged by lateral tension accompanied by appearance and development of cracks. These cracks are caused by contraction and interaction between two materials with different mechanical characteristics As a result of this mutual interaction, mortar that has a lower Young's modulus and has tendency to greater lateral strain, is transversely "pressed" and masonry units, on the contrary are transversely "stretched" [1,2].…”