Lateral Stiffness of Masonry Infilled Reinforced Concrete (RC) Frames with Central Opening | Zendy

Mondal Goutam | Zendy; Jain Sudhir K. | Zendy

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Lateral Stiffness of Masonry Infilled Reinforced Concrete (RC) Frames with Central Opening

Author(s) -

Mondal Goutam,

Jain Sudhir K.

Publication year - 2008

Publication title -

earthquake spectra

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.134

H-Index - 92

eISSN - 1944-8201

pISSN - 8755-2930

DOI - 10.1193/1.2942376

Subject(s) - masonry , infill , structural engineering , diagonal , stiffness , reinforced concrete , frame (networking) , geology , geotechnical engineering , engineering , mathematics , geometry , telecommunications

Window and door openings are inevitable parts of infill walls for functional reasons. Currently, publications like FEMA-273 and ATC-40 contain provisions for the calculation of stiffness of solid infilled frames mainly by modeling infill as a “diagonal strut.” However, such provisions are not provided for infilled frames with openings. The present study proposes a reduction factor for effective width of diagonal strut over that of the solid reinforced concrete (RC) infilled frame to calculate its initial lateral stiffness when a central window opening is present. The study is based on initial lateral stiffness which is taken at 10% of the lateral strength of the infilled frames.

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