REPAIRING SEISMIC DAMAGED CONCRETE FRAMES OF INTERMEDIATE MOMENT RESISTANT BY X BRACING

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VATANI OSKOUEI A.; RAFIEE M.H.

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Journal: JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL) Year:2009 | Volume:28 | Issue:1 Page(s): 49-73

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Title

REPAIRING SEISMIC DAMAGED CONCRETE FRAMES OF INTERMEDIATE MOMENT RESISTANT BY X BRACING

Author(s)

VATANI OSKOUEI A. | RAFIEE M.H. | Issue Writer Certificate

Keywords

EARTHQUAKEQ3

CONCRETEQ2

DAMAGEQ2

REPAIRQ3

PERFORMANCE LEVELQ3

BRACEQ2

PLASTIC HINGEQ3

Abstract

In the new generation of RC buildings, three PERFORMANCE LEVELs, namely serviceability, life safety, and collapse prevention, are accepted for designing the CONCRETE structure. Depending on the magnitude of the EARTHQUAKE, cracking and plastic deformations are permitted. In this study, 8 low- to mid-rise (one to eight stories) intermediate moment-resistant RC frames were chosen. The frames were analyzed and designed based on the current seismic design code. Using the nonlinear pushover analysis, strength/stiffness degradation and residual strain and deformation of the DAMAGEd frame at the performance point of the frames were studied. In this study, the DAMAGEd frames were modeled with respect to the DAMAGE level. The DAMAGE levels of the frames depended on height and the period of the frames. The stiffness of the DAMAGEd frame degraded by about 30% compared to the original but strength deteriorated by about 10%. The ultimate displacements of the DAMAGEd frames reduced by about 50% compared to the original. X bracing system was used for REPAIRing and rehabilitating the DAMAGEd frames for suitable performanceduring future EARTHQUAKE events. The bracing increased stiffness and strength but decreased period and displacement of frames.

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APA: Copy

VATANI OSKOUEI, A., & RAFIEE, M.H.. (2009). REPAIRING SEISMIC DAMAGED CONCRETE FRAMES OF INTERMEDIATE MOMENT RESISTANT BY X BRACING. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), 28(1), 49-73. SID. https://sid.ir/paper/173666/en

Vancouver: Copy

VATANI OSKOUEI A., RAFIEE M.H.. REPAIRING SEISMIC DAMAGED CONCRETE FRAMES OF INTERMEDIATE MOMENT RESISTANT BY X BRACING. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL)[Internet]. 2009;28(1):49-73. Available from: https://sid.ir/paper/173666/en

IEEE: Copy

A. VATANI OSKOUEI, and M.H. RAFIEE, “REPAIRING SEISMIC DAMAGED CONCRETE FRAMES OF INTERMEDIATE MOMENT RESISTANT BY X BRACING,” JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), vol. 28, no. 1, pp. 49–73, 2009, [Online]. Available: https://sid.ir/paper/173666/en

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