Experimental Study of a one Side Masonry Wall Rehabilitation Design for Earthquake Damaged Buildings

Abstract eng:
Unreinforced masonry buildings are among the most popular types of construction in Iran. In these buildings, walls are used to resist both gravity and lateral loads. Since brittle materials are used in construction of these walls, they typically, are not ductile and when loading exceeds their capacity they suddenly lose the load carrying capacity. After an earthquake, different kinds of damage to buildings fall into following categories: members with permanent deformation or members with cracks. Rehabilitation is the best way for enhancing behavior of the cracked members. It is important to rehabilitate cracked members with different approaches because: 1-There are a lot of cracked members in the structure after an earthquake 2- Because of the loss of lateral strength in case of cracks in load bearing members, structure is vulnerable to future earthquakes. In this research a design procedure for one side-rehabilitation of damaged masonry walls is proposed and confirmed experimentally on half scale undamaged. One rehabilitated walls, under cyclic loading. Results show that this design strategy has restored most of load carrying capacity of the wall.

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