Seismic Performance Assessment of Non-Compliant SMRF-Reinforced Concrete Frame: Shake-Table Test Study |
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Authors: | Naveed Ahmad Asif Shahzad Muhammad Rizwan Akhtar Naeem Khan Syed Muhammad Ali Muhammad Ashraf |
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Affiliation: | Earthquake Engineering Center, UET Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan |
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Abstract: | Seismic performance assessment is carried out for reinforced concrete structure built in low-strength concrete lacking confining ties in beam-column joint. Shake-table tests were performed on 1/3rd scaled two-story frame using design-spectrum-compatible accelerogram, scaled to various target levels. The frame is observed with beam longitudinal bar slip and pullout. Joints with no confining ties experienced extensive damage, observed with cover/core concrete spalling. The frame could resist 70% of the design ground motion to remain within the code-specified drift limit. The code requirement for minimum column depth will not avoid joint damageability in case of low-strength concrete and joints lacking confining ties. |
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Keywords: | SMRF Building Code of Pakistan UBC-97 Shake-Table Test Low-Strength Concrete Joint Damage |
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