Earthquake Retrofitting of “Soft-Story” RC Frame Structures with RC Infills
نویسندگان
چکیده
Multi-story, old reinforced concrete (RC) structures with a “soft-story” on the ground floor, sustain considerable damage to soft story during earthquakes due presence of masonry infills in upper stories. Aspects such infill–RC frame interaction are briefly discussed and particular retrofitting scheme for is studied. It consists RC infills, added within bays floor frames combined jacketing surrounding frame, aiming avert soft-story deficiency. The impact retrofit studied through measured response 1/3 scaled single-story, one-bay subjected cyclic seismic-type horizontal loads. shown that this results beneficial increase stiffness, strength, plastic energy consumption. importance effective steel ties connecting infill also demonstrated. In order achieve these desired effects vulnerable buildings, additional design objectives established aim avoiding premature failure panel and/or fracture protect from undesired local damage. A numerical methodology, which validated by using obtained experimental results, be capable predicting reasonably well important mechanisms can therefore utilized purposes.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app122211597