The effect of near-fault directivity on seismıc collapse risk of high-voltage transmission towers

Date

2023-12-04

Author

Aydos, Utku Can

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Forward directivity may cause large velocity pulses in ground motion time histories that are damaging to structures at sites close to faults, potentially increasing their seismic collapse risk. This study quantifies the effects of forward directivity on collapse risk through nonlinear dynamic analysis of high-voltage transmission tower models that are capable of capturing the key aspects of strength and stiffness degradation associated with structural collapse. The nonlinear dynamic analysis is carried out based on a suite of high-voltage transmission tower models that are subjected to databases of near-fault and far-field ground motions.

Subject Keywords

Transmission line towers, Nonlinear analysis, Near-field directivity, Collapse risk

URI

https://hdl.handle.net/11511/107730

Collections

Graduate School of Natural and Applied Sciences, Thesis