Sürdürülebilir Kalkınma Amaçları

• 2

Yazarlar

• Adanur, S.(1)
• Altunisik, A.C.(1)
• Ayvaz, Y.(1)
• Gunaydin, M.(1)
• Sevim, B.(1)
• Öztürk, H.(1)

• MakaleYalnız künye2017Scopus SJRQ1/r/gumushane/15232
  System identification of arch dam model strengthened with CFRP composite materials

  Altunisik, A.C.; Gunaydin, M.; Sevim, B.; Adanur, S.

  This paper presents the structural identification of an arch dam model for the damaged, repaired and strengthened conditions under different water levels. For this aim, an arch dam-reservoir-foundation model has been constructed. Ambient vibration tests have been performed on the damaged, repaired and strengthened dam models for the empty reservoir (0 cm), 10 cm, 20 cm, 30 cm, 40 cm, 50 cm and full reservoir (60 cm) water levels to illustrate the effects of water levels on the dynamics characteristics. Enhanced Frequency Domain Decomposition Method in the frequency domain has been used to extract the dynamic characteristics. The dynamic characteristics obtained from the damaged, repaired and strengthened dam models show that the natural frequencies and damping ratios are considerably affected from the varying water level. The maximum differences between the frequencies for the empty and full reservoir are obtained as 16%, 33%, and 25% for damaged, repaired and strengthened model respectively. Mode shapes obtained from the all models are not affected by the increasing water level. Also, after the repairing and strengthening implementations, the natural frequencies of the arch dam model increase significantly. After strengthening, between 46-92% and 43-62% recovery in the frequencies are calculated for empty and full reservoir respectively. Apparently, after strengthening implementation, the mode shapes obtained are more acceptable and distinctive compared to those for the damaged model.

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  AtıfScopus11·WoS10·OpenAlex4

  İncele
• MakaleYalnız künye2002Scopus SJRQ1/r/gumushane/15812
  Comparative study of behavior of reinforced concrete beams strengthened and repaired-strengthened by using V connecting bars and U connecting stirrups

  Öztürk, H.; Ayvaz, Y.

  The purpose of this study is to investigate the repairing and strengthening techniques for reinforced concrete beams and to compare the behaviors of beams strengthened and repaired-strengthened by two different techniques with each other and with the behaviors of monolithic beams. These comparisons are made separately for the load carrying capacity, displacement, ductility, rigidity change, and energy dissipation capacity. The results show that the repairing and strengthening techniques used in this study can be effectively used in the practice.

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  AtıfScopus5·OpenAlex6

  İncele