Examination of anchorage of mesh wire on seismic response of infill walls in RC frames

Abstract EN

The infill walls may lose their positive effects during the first stages of earthquakes, either by leaving their plane or through breakage.

That is why it is common to strengthen these walls before design earthquakes or to repair and strengthen them after suffering slight or moderate damage due to the occurrence of an earthquake.

In this study, the effects of adding and strengthening these walls on the structural behavior of reinforced concrete structures were investigated.

For this purpose, the infill walls were strengthened with a single mesh of reinforcement and covered with plaster.

Five one-story, single bay, and ½ scaled reinforced concrete frames were cast: one was built without infill, the second with a bare infill wall, and the other three with strengthened infill walls with anchorage of different diameters.

All these specimens were tested under cyclic loading type reverse.

The tests resulted in important relationships and curves, including the lateral load-lateral displacement, envelope curve-lateral load, and lateral displacement, as well as stiffness-lateral displacement and others.

Through these results, the effects of adding infill walls and the strengthening procedure of these walls on the structural behavior of the structures were discussed.