Virtually all masonry arch bridges contain masonry parapets and, because of the possibility that these may be extensively damaged following a vehicle impact, it is often reported that these give engineers more cause for concern than the arch barrel itself. Over the past decade research has been carried out to gain an understanding of the fundamental modes of resistance of unreinforced masonry p...

The evolution of the damage mechanic properties for un-reinforced masonry panels under dynamic loads is critical in a time-domain analysis of masonry shear walls. This research project experimentally investigates the evolution of the properties of the damage variable for unreinforced masonry panels, subject to dynamic in-plane displacement controlled strain. This paper presents the theoretical ...

Unreinforced masonry (URM) structures are vulnerable to earthquakes; thus, materials and techniques for their strengthening restoration should be developed. However, the used in some of existing retrofitting technologies URM waste produced at its end-of-life unsustainable. The production ordinary Portland cement (OPC) worldwide has enormously contributed global carbon footprint, resulting persi...

Masonry panels consisting of piers and spandrels in buildings are vulnerable to in-plane actions caused by seismicity soil subsidence. Tectonic is a safety hazard for masonry structures, whereas low-magnitude induced can be detrimental their durability due the accumulation light damage. This particularly true case unreinforced masonry. Therefore, development models accurate prediction both dama...

Masonry has low cohesive strength and is susceptible to the brittle failure, when subjected to induced tensile stresses. It fails due to lateral tensile stresses even when masonry prisms are tested in uni-axial static compression and the stress-strain curve remains almost linear up to failure. Although masonry normally resists compressive forces, under lateral in-plane cyclic loads some parts o...

the objective of this paper is to present a new method for protecting the lives of residents in catastrophic earthquake failures of unreinforced masonry buildings by introducing some safe rooms within the buildings. the main idea is that occupants can seek refuge within the safe rooms as soon as the earthquake ground motions are felt. the information obtained from the historical ground motions ...