The majority of the building-stock from before 1900 has been erected with natural hydraulic lime-based mortars in massive masonry. Due to the low modulus of elasticity of lime-based mortars there has never been a need for dilation joints in old masonry structures. Changes in shape as a result of expansion and contraction, due to hot/cold cycles, could be “followed” by these masonry structures w...

ABSTRACT: This paper explores the behavior of infill masonry structures strengthened with a new type of Fiber Reinforced Polymer (FRP) strengthening system with high fracture strain know as PET (Polyethylene Teraphthalate) and a new near-surface mounted (NSM) Carbon fiber strengthening system using a cementitious material as the adhesive as compared to a Glass Fiber (GFRP) strengthening system ...

An evaluation procedure of the seismic performance overseas RC buildings with unreinforced masonry walls is proposed and applied to an urban residential building in Nepal. The structural out-of-plane as well in-plane directions considered proposal. Consequently, interest was reliably evaluated considering effects brick walls; namely, it confirmed that did not collapse direction under analytical...

The article presents a hybrid monitoring technique for the measurement of the deformation field. The goal is to obtain information about crack propagation in existing structures, for the purpose of monitoring their state of health. The measurement technique is based on the capture and analysis of a digital image set. Special markers were used on the surface of the structures that can be removed...

Non-linear static analyses are the most effective way to predict force-displacement curves of masonry structures, due to the complex non linear behaviour of masonry panels which makes inadequate any kind of linear static analyses. Nevertheless, the choice of the appropriate model to use is a matter of paramount importance, as many aspects must be taken into account in order to reach a good appr...

Fiber-reinforced polymer reinforcement or polyurea techniques are applied to strengthen unreinforced masonry walls (UMWs). The purpose of this experimental study is verify the out-of-plane reinforcing effect sprayed glass fiber-reinforced (GFRPU), which a composite elastomer made and milled fibers on UMW. strengths ductile behaviors based various coating shapes compared in study. An empirical f...

Unreinforced masonry (UM) is well known as a vulnerable structure against earthquakes. However, it remains popular structural system for low-rise residential housing in many high-seismicity areas, particularly developing regions due to its low cost and easy construction. In the present study, retrofitting strategy using locally available material, bamboo strips, was proposed. addition fast-grow...

This paper presents numerical modeling technique for Dhajji-Dewari structures (timber-braced rubble stone masonry), and its application for the evaluation of in-plane force-deformation capacity of Dhajji wall panels of different configuration of bracings. Dhajji structures are mainly composed of vertical and horizontal timber posts and braced using diagonal bracings and horizontal studs. Wall o...