Comparison of seismic performances of reinforced concrete frames strengthened by different techniques

Abstract

The aim of this study is to compare the seismic performances of strengthening techniques applied to reinforced concrete (RC) non-ductile frames tested under the effects of seismic loads. In the experimental part of the study, one-third scale, one-bay, two-storey non-ductile hollow brick infilled RC frames were strengthened with five different techniques and tested under reversed cyclic lateral loads. One being reference, five of the frames were infilled with hollow bricks and plastered on both sides, one was strengthened with plain mortar, one was strengthened with steel fiber reinforced mortar, two were strengthened with precast RC plates. The last frame was strengthened with RC infill wall. Strengthening techniques increased strength and stiffnesses of the frames in the ranges from 57% to 189% and from 186% to 486% respectively. In the numerical analysis part, an existing RC non-ductile building located in Istanbul, strengthened with the techniques, were analyzed using a computer program. Numerical results were evaluated in terms of interstorey drift ratio together with the overall seismic performance of the building.

Structural Behavior of steel frame Infilled with Ferrocement Precast Panel S ubjected to Lateral Load

“…The base shear on the structure by seismic coefficient method is found to be 1916.77kN and by response spectrum method is found to be 1916.77 kN along both X and Y directions by ETABS and manual calculations is 1907.6kN which are approximately nearer. Story shear reaction of bare frame infilled with Ferrocement precast panels by manual calculation of G+9 storied structure from the above graph we can observe that there is gradual rise in base shear values as the stories rise (6)…”

6 Şubat 2023 Türkiye Depreminde Hasar Görmüş Betonarme Yapıların Güçlendirilmesi için Alternatif Ferrocement Paneller

“…The delayed load will transfer to other walls, causing similar damage in walls of the same direction. Based on this understanding, panels can be used to strengthen the existing hollow brick infill walls to act as castin-place concrete infills improving the lateral stiffness (Baran, 2021).…”

Investigation of The Effect of Different Placement of Reinforced Shear Walls On Building Behaviour

“…Binanın deprem performansında yetersizlik saptanması halinde ekonomik bir çözüm ise uygun bir teknikle güçlendirilmesi gerekir. Binaların taşıyıcı ve taşıyıcı olmayan elemanlarının güçlendirilmesi için literatürde birçok farklı yöntem kullanılmaktadır [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Perdelerin farklı bir kullanımı ise binaların güçlendirilmesi aşamasıdır.…”