Unreinforced masonry structures are susceptible to man-made hazards such as impact and blast loading. However, the literature on this subject mainly focuses wall behavior, there is a knowledge gap about behavior of arches under high-strain In context, research aims investigate both quasistatic response dry-joint stone arch using discrete element method. Rigid blocks with noncohesive joint model...

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...

Moisture diffusion and carbonation influence the behavior of multiple-leaf ancient masonry walls, producing during centuries a redistribution of stresses from the core of lime mortar concrete to the external cladding of stiff masonry. This is likely one of the causes of long-time damage of some ancient masonry towers. With these motivations, coupled processes of moisture diffusion, carbon dioxi...

Original scientific paper Reinforced-concrete (R/C) frames infilled with masonry wall, especially with the presence of an opening, are insufficiently explored structural elements. We have experimentally investigated influence of the opening’s type and position to the lateral response of reinforced-concrete frames with masonry infill. Correction factors, that take into account influence of the o...

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...

The main components which affect the earthquake damage grades classification of multistory masonry buildings and the damage characters are summarized and analyzed through the statistics and analysis of a large number of previous earthquake damage data. According to the standard of earthquake damage grades classification, the damage numbers of each component of multistory masonry buildings under...

• Existing unreinforced masonry buildings show significant vulnerability to sequences of induced seismicity events. An intuitive seismic damage indexing scheme is proposed for URM structures. The considers both shear slipping and tensile cracking in masonry. A meso -scale model developed, the index equation applied identify evolution damage. could be applicable optical monitoring structural ins...

Physicochemical characteristics of Hibiscus cannabinus (kenaf) fibers from Burkina Faso were studied using X-ray diffraction (XRD), infrared spectroscopy, thermal gravimetric analysis (TGA), chemical analysis and video microscopy. Kenaf fibers (3 cm long) were used to reinforce earth blocks, and the mechanical properties of reinforced blocks, with fiber contents ranging from 0.2 to 0.8 wt%, wer...

The presence of openings greatly affects the response unreinforced masonry (URM) walls. This topic attracts attention many researchers. Perforated (PURM) walls under in-plane loads through truss discretization method (TDM) along with several machine learning approaches such as Multilayer perceptron (MLP), Group Method Data Handling (GMDH), and Radial basis function (RBF) are described in this p...

This paper reports an experimental programme on masonry walls composed of handmade solid clay brick and hydraulic lime mortar. Reversed cyclic shear compression tests were carried out the in three different configurations: unreinforced, repaired retrofitted, just retrofitted. Damaged retrofitted with Basalt Textile Reinforced Mortar (B-TRM) tested again to investigate recovery strength, stiffne...