TY - JOUR
T1 - Experimental study on lateral strength evaluation of unreinforced masonry-infilled RC frame
AU - Jin, Kiwoong
AU - Choi, Ho
AU - Nakano, Yoshiaki
N1 - Publisher Copyright:
© 2016, Earthquake Engineering Research Institute.
PY - 2016/8
Y1 - 2016/8
N2 - In this study, RC frames with unreinforced masonry (URM) infill for typical school buildings in Korea are experimentally investigated to evaluate their seismic performance. For this purpose, one-bay, one-fourth scale specimens, with unreinforced concrete block (CB) infill having different boundary conditions due to beam rigidity, are tested under in-plane cyclic loading, using a distinctive measurement scheme consisting of three-axis strain gauges attached to all CB units. In this paper, the diagonal strut mechanism of CB infill including its main strut angle, average compressive strain, and equivalent strut width is discussed using principal compressive strains on CB units. The lateral strength carried by CB infill and RC frame from the overall response of the specimens is also explained, based on the compressive stress acting on the infill and the curvature distribution along RC members during the test.
AB - In this study, RC frames with unreinforced masonry (URM) infill for typical school buildings in Korea are experimentally investigated to evaluate their seismic performance. For this purpose, one-bay, one-fourth scale specimens, with unreinforced concrete block (CB) infill having different boundary conditions due to beam rigidity, are tested under in-plane cyclic loading, using a distinctive measurement scheme consisting of three-axis strain gauges attached to all CB units. In this paper, the diagonal strut mechanism of CB infill including its main strut angle, average compressive strain, and equivalent strut width is discussed using principal compressive strains on CB units. The lateral strength carried by CB infill and RC frame from the overall response of the specimens is also explained, based on the compressive stress acting on the infill and the curvature distribution along RC members during the test.
UR - http://www.scopus.com/inward/record.url?scp=84983483357&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84983483357&partnerID=8YFLogxK
U2 - 10.1193/100714EQS152M
DO - 10.1193/100714EQS152M
M3 - Article
AN - SCOPUS:84983483357
VL - 32
SP - 1725
EP - 1747
JO - Earthquake Spectra
JF - Earthquake Spectra
SN - 8755-2930
IS - 3
ER -