Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Article Citation - WoS: 3Citation - Scopus: 3Assessment of Seismic Liquefaction and Structural Instability in Adiyaman-Golbasi After the February 6, 2023, Earthquakes in Türkiye(Elsevier Sci Ltd, 2025) Ecemis, Nurhan; Dalgıç, Korhan Deniz; Donmez, Cemalettin; Karaman, Mustafa; Karaman, Mustafa; Dönmez, Cemalettin; Valizadeh, Hadi; Ecemiş, Nurhan; Dalgic, Korhan DenizTwo earthquakes, Mw = 7.8 Kahramanmaras,-Pazarcik, and Mw = 7.6 Elbistan, occurred on February 6, 2023, approximately 9 h apart. These earthquakes caused devastating effects in a total of 11 nearby cities on the east side of T & uuml;rkiye (Adana, Adiyaman, Diyarbakir, Elazig, Gaziantep, Hatay, Kahramanmaras,, Kilis, Malatya, Osmaniye, and S,anliurfa) and the north side of Syria. These earthquakes provided an outstanding prospect to observe the effects of liquefaction in silty sand and liquefaction-like behavior in clays (cyclic softening) on the stability of structures. This paper specifically presents the post-earthquake reconnaissance at three sites and evaluations of four buildings within these sites in Adiyaman Province, Golbas, i District. First, important role of post-earthquake piezocone penetration test (CPTu) in characterizing the subsurface conditions was presented. Then, the effect of soil liquefaction and cyclic softening on the performance of four buildings during the earthquakes was evaluated. These structures represent the typical new reinforced concrete buildings in T & uuml;rkiye with 3 to 6-story, situated on shallow (raft) foundations, and demonstrated diverse structural performances from full resilience to moderate and extensive damage during the aforementioned earthquakes. Based on the interim findings from these sites, the potential factors that caused moderate to severe damage to buildings were inspected, and preliminary-immediate insights were presented on the relationship between structural design, soil properties, and the performance of buildings with shallow foundations.Conference Object Citation - WoS: 1Citation - Scopus: 1Validation of Porosity in 2d-Dem Cpt Model Using Large Scale Shaking Table Tests in Saturated Sands(Taylor & Francis, 2015) Bakunowicz, Paulina; Ecemiş, NurhanThis paper contains the calibration phase of two-dimensional numerical modelling of Cone Penetration Tests (CPT) in clean saturated sand deposits. The data for calibration is obtained from the CPTs conducted before five different large scale laminar box shaking table tests. The numerical simulations of the cone penetration tests are carried out under application of the Distinct Element Method (DEM) software PFC2D (ITASCA, 2008). This software has additional basic fluid analysis option which uses well recognized SIMPLE shame (Patankar, 1980). A series of conventional Consolidated Drained (CD) triaxial tests were performed in the laboratory to assess the stress-strain behavior of the tested soil. Based on these physical experiments, calibration and scaling of DEM model was performed. In this paper, it is also proven that CPT laminar box based correlations facilitate to overcome limitations of 2D simulation. Outcome can be widely and successfully applied both in scientific research and engineering practice.