Repairing of Heavily Cracked Unbonded Post-Tensioned Structural Systems

Nikhil Sharma; Shakshi Chalotra

doi:10.55524/ijirem.2022.9.2.93

Abstract

Reinforced concrete moment resisting frames (RCMRF) are structural systems that should be designed to ensure proper energy dissipation capacity when subjected to seismic loading. In this design philosophy the capacity design approach that is currently used in practice demands “strong-column / weak-beam” design to have good ductility and a preferable collapse mechanism in the structure. When only the flexural strength of longitudinal beams controls the overall response of a structure, RC beam-column connections display ductile behavior (with the joint panel region essentially remaining elastic). The failure mode where in the beams form hinges is usually considered to be the most favorable mode for ensuring good global energy-dissipation without much degradation of capacity at the connections. Though many international codes recommend the moment capacity ratio at beam column joint to be more than one, still there are lots of discrepancies among these codes and Indian standard is silent on this aspect.

Keywords

Linear & Non-Linear analysis, RCC & Precast beam-column connections, Seismic, Prestressed Ground Motion, Panel building

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Cites this article as

N. Sharma, S. Chalotra, "Repairing of Heavily Cracked Unbonded Post-Tensioned Structural Systems", International Journal of Innovative Research in Engineering & Management (IJIREM), Vol-9, Issue-2, Page No-597-602, 2022. Available from: https://doi.org/10.55524/ijirem.2022.9.2.93