Abstract
Unreinforced masonry walls (URM) in old buildings are vulnerable to collapse upon receiving high lateral inertia force due to earthquakes. However, a high strength fiber material such as Kevlar fiber has been identified as able to improve the URM-Wall performance, especially in shear strength enhancement. In this research, the seismic performance of an URM-Wall was analysed using SAP2000 by modeling the wall with three dimensional solid elements. Solids and springs as link connectors were assigned to represent the masonry behavior. The aim of this research is to compare between results obtained from the computer analyses and the previously conducted laboratory experiments. The effectiveness of Kevlar material installed in the diagonal directions of both wall surfaces was investigated. It was found that the failure mechanism shown by the SAP2000 model is similar to the laboratory test results.
Highlights
Masonry buildings were very common from the beginning of civil construction all over the world
These specimens seem to be the largest of its kind, which have ever been tested to study the seismic behaviour of traditional masonry walls with a door opening in Indonesia
Some conclusions can be drawn based on these test results as follows: 1. Based on the Test Unit-1 test result, it is most likely that existing unreinforced masonry (URM) buildings, located in seismic prone areas, might experience severe shear failure damage when the demand lateral seismic forces exceeds its capacity
Summary
Masonry buildings were very common from the beginning of civil construction all over the world. Clay bricks have been used for at least 10,000 years. They were made from sun-dried clay and widely used in Babylon, Egypt, Spain, South America, United States, and elsewhere [1]. The URM elements are constructed from hand-placed units of natural or manufactured material such as clay-bricks, one stacked on top of another and jointed to each other with mortar. As the properties of clay vary throughout the world, it is apparent that different kinds of bricks predominate in different regions. These wide variety of bricks resulted a bewildering variety of properties
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