Evaluation of seismic risk mitigation strategies from the perspective of carbon emission

Date

2026-9-04

Author

İnanç, Mustafa Anıl

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The decision between seismic strengthening and full reconstruction carries significant consequences for the built environment's life cycle carbon emissions. As the construction sector is a major contributor to global greenhouse gas emissions, evaluating the carbon trade-offs between these mitigation strategies is essential for climate-conscious engineering. Strengthening generally retains a structure's existing embodied carbon, reducing production- and supply-stage (A1–A3) emissions by requiring fewer materials and energy than full replacement. This thesis evaluates seismic mitigation strategies for the reinforced concrete building stock of Türkiye, assessing them not only against conventional performance criteria, but also in terms of their embodied carbon. A seismic performance assessment methodology, based on both linear elastic and nonlinear static (pushover) analysis, is first validated against the observed field damage of existing 4-5 storey typical Turkish buildings, and the seismic performance obtained under the successive Turkish Seismic Codes (1975, 2007 and 2018) is compared. The study is, then, extended to a representative building stock, for which shear-wall strengthening, RC jacketing and reconstruction according to TBEC (2018) are compared in terms of their seismic performance, expressed through a performance score and fragility curves, and their associated carbon emissions within the PEER framework.

Subject Keywords

Strengthening, Carbon emission, Performance assessment, Fragility analysis, Reinforced concrete structures

URI

https://hdl.handle.net/11511/121025

Collections

Graduate School of Natural and Applied Sciences, Thesis