Mertol, Halit Cenan

Profile Picture
Profile URL
https://hdl.handle.net/20.500.14411/6696
Name Variants
Mertol, Halit Cenan
Halit Cenan Mertol
M., Halit Cenan
H. C. Mertol
H.,Mertol
M.,Halit Cenan
H., Mertol
Mertol,H.C.
Mertol,Halit Cenan
H.C.Mertol
Mertol H.
Halit Cenan, Mertol
Cenan Mertol H.
Mertol, Halit
Job Title
Doktor Öğretim Üyesi
Email Address
cenan.mertol@atilim.edu.tr
Main Affiliation
Civil Engineering
Status
Website
https://www.atilim.edu.tr/tr/ict/page/2110/akademik-personel
ORCID ID
0000-0001-8058-5798
Scopus Author ID
31767605700
Turkish CoHE Profile ID
177739
Google Scholar ID
GKJ8InMAAAAJ
WoS Researcher ID
DFP-8120-2022

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
0
Research Products
GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
0
Research Products
QUALITY EDUCATION4
QUALITY EDUCATION
1
Research Products
GENDER EQUALITY5
GENDER EQUALITY
0
Research Products
CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
Research Products
AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
1
Research Products
INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
0
Research Products
REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
Research Products
SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
12
Research Products
RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
1
Research Products
CLIMATE ACTION13
CLIMATE ACTION
0
Research Products
LIFE BELOW WATER14
LIFE BELOW WATER
0
Research Products
LIFE ON LAND15
LIFE ON LAND
0
Research Products
PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
Research Products
PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
0
Research Products
Documents

18

Citations

365

h-index

10

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Documents

14

Citations

310

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Scholarly Output

34

Articles

18

Views / Downloads

231/2220

Supervised MSc Theses

14

Supervised PhD Theses

1

WoS Citation Count

272

Scopus Citation Count

306

Patents

0

Projects

1

WoS Citations per Publication

8.00

Scopus Citations per Publication

9.00

Open Access Source

8

Supervised Theses

15

JournalCount
PCI Journal2
Buildings2
Journal of the Croatian Association of Civil Engineers2
Journal of Performance of Constructed Facilities2
Journal of Reinforced Plastics and Composites1
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Now showing 1 - 9 of 9
  • Thumbnail Image
    Article
    Citation - WoS: 7
    Citation - Scopus: 7
    Finite Element Analysis of Frames With Reinforced Concrete Encased Steel Composite Columns
    (Mdpi, 2022) Tunc, Gokhan; Othman, Mohammed Moatasem; Mertol, Halit Cenan
    Structural frame systems that consists of concrete-encased-steel-embedded composite columns and reinforced concrete beams are typically used in mid-rise to tall buildings. In order to understand their overall structural behavior, a total of 12 frame models with high and low ductility features were constructed and analyzed using LS-DYNA software. Two of these models were validated using the results of previously tested frames. The remaining 10 models were studied to predict the behavior of frames with varying concrete strengths, reinforcement configurations, and structural steel sections under vertical and lateral loads. The results were investigated in terms of cracks and failure patterns, load-deflection relationships, energy dissipation, and stiffness degradation. The analytical results indicated that the high ductile frame models showed slightly better lateral load carrying performances compared to low ductility frame models. Moreover, the analytical studies demonstrated that the existence of structural steel in a column, regardless of its cross-sectional shape, was the most important parameter in improving the lateral load carrying capacity of a frame.
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    Article
    Citation - WoS: 3
    Citation - Scopus: 6
    Experimental Analysis of the Behavior of Composite Column-Reinforced Concrete Beam Joints
    (Springer Heidelberg, 2021) Tunc, Gokhan; Dakhil, Abdulrrahman; Mertol, Halit Cenan
    This study assesses the seismic performance of steel-reinforced concrete (SRC) composite columns connected to reinforced concrete (RC) beam joints, and their ability to dissipate seismic energy through inelastic deformations. In this article, experimental aspects regarding the seismic performance of high-ductility and low-ductility steel-concrete composite frame were investigated. The principle design parameter in this study was ductility, which is considered a conceptual framework in Efficiency-Based Seismic Engineering. Thus, attention was focused on assuring various ductility ranges of joints obtained through a detailed study of the Turkish Earthquake Code (TEC 18) [Ministry of Public Works and Housing.: Turkiye Bina Deprem Yonetmeligi (Turkey's Earthquake Code for Buildings). Official Gazette (2018) (in Turkish).]. After identifying deficiencies and the energy dissipation capacity in the newly proposed joints, two half-scaled frames with specific ductility-related designs were constructed, instrumented, tested, and analyzed. The specimens were tested under displacement-controlled lateral cyclic loading that incorporated constant axial loading to create cyclic tension and compression facets across the joint areas. The test results proved that the SRC column-RC beam frames employing an extra column reinforcement ratio exhibit slightly better seismic performance. Due to the presence of structural steel, the shear failure of the joint was effectively prevented, even after the formation of the plastic hinge on the interface of the beam. During the testing, the column rebars, to some extent, made a minor contribution to the joint strength of the specimen compared to the structural steel that absorbed almost all of the load applied to the frame.
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    Article
    Citation - WoS: 7
    Citation - Scopus: 6
    Influence of the Proportion of Frp To Steel Reinforcement on the Strength and Ductility of Hybrid Reinforced Concrete Beams
    (Taylor & Francis Ltd, 2023) Kartal, Saruhan; Kalkan, Ilker; Mertol, Halit Cenan; Baran, Eray
    The present study pertains to the influence of variation of FRP (Fiber Reinforced Polymer) proportion in tension reinforcement on the flexural behavior of RC beams with FRP and steel reinforcing bars. A total of 25 beams, including FRP-, steel- and hybrid FRP-steel reinforced ones, were tested to failure under four-point bending. Two types of FRP bars, GFRP (Glass Fiber Reinforced Polymer) and BFRP (Basalt Fiber Reinforced Polymer), were used and both over- and under-reinforced beams were tested. The beams in each group were designed to have close flexural capacities to fully reveal the effect of FRP proportion in the tension zone on beam ductility for a fixed bending capacity. A new analytical model was developed for estimating the bending capacities of beams. Different deformation and curvature ductility definitions were adopted and an energy-based definition, revealing the expected tendency in beam ductility, was determined. The test results revealed that the presence of even a single FRP bar in the tension zone results in reductions up to 40% in beam ductility as compared to the beam with full steel reinforcement. Each additional replacement of a steel bar with FRP was found to cause a further decrease up to 20% in beam ductility.
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    Article
    6 Şubat 2023 Depremlerinde Gözlenen Betonarme Binalardaki Sorunların Hiyerarşik Bir Üçgen ile Açıklanması
    (2023) Mertol, Halit
    Ülkemiz 6 Şubat 2023 tarihinde, saat 04:17’de merkez üssü Kahramanmaraş’ın Pazarcık ilçesi olan $M_w=7.74 büyüklüğünde bir depremle sarsılmıştır. Yaklaşık dokuz saat sonra, saat 13:24’te, bu sefer merkez üssü Kahramanmaraş’ın Elbistan ilçesi olan $M_w=7.6$ büyüklüğünde ikinci bir deprem oluşmuştur. Depremlerin çevresinde bulunan 11 şehir afet bölgesi kapsamına alınmıştır. Çevre, Şehircilik ve İklim Değişikliği Bakanlığı’nın verilerine göre bölgede 582000 bağımsız bölüm ve 202000 binanın acil yıkılacak, ağır hasarlı veya yıkık olduğu saptanmıştır. Bu makalede, deprem bölgesine yapılan, depremin olduğu gün başlayan ve 5 gün süren incelemeler neticesinde, betonarme binalarda yıkılmaya neden olan sorunlar hiyerarşik bir üçgen şeklinde, önem sırasına göre anlatılmıştır. Yetersiz kenetlenme boyu, etriye uçlarının 135° derece bükülmemesi, malzeme ile ilgili sorunlar, kolon ve kiriş uç bölgelerinde sarılma bölgelerinin bulunmaması, güçlü kiriş-zayıf kolon, vb. sorunların yıkımların önemli bir kısmını oluşturduğu gözlemlenmiştir. Yıkılan yapıların, yapıldıkları dönemde yürürlükte olan deprem yönetmeliklerinin şartlarını yerine getirmediği görülmüştür.
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    Article
    Citation - WoS: 10
    Citation - Scopus: 10
    Evaluation of Masonry Buildings and Mosques After Sivrice Earthquake
    (Croatian Soc Civil Engineers-hsgi, 2021) Mertol, Halit Cenan; Tunc, Gokhan; Akis, Tolga
    The evaluation of masonry and mosque type structures after the Sivrice Earthquake is presented in this study. Stone masonry buildings exhibited damage such as vertical cracks and splitting at corners, wedge shaped corner failures, diagonal cracking on walls, out-of-plane splitting of walls, and separation of walls from flooring/roofing systems. On the other hand, the separation of flags and caps of minarets was a common example of damage in mosques. Future earthquake damage can be prevented by following design codes and providing adequate supervision for new structures, while strengthening measures are recommended for the existing buildings.
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    Article
    Farklı Geleneksel ve Çelik Lifli Beton Katmanlarına Sahip Betonarme Kirişlerin Eğilme Davranışı
    (2022) Mertol, Halit Cenan
    Bu çalışmada, farklı geleneksel ve çelik lifli beton katmanlarına sahip betonarme kirişlerin eğilme davranışı incelenmiştir. Boyutları 180×250×3500 mm olan toplamda 10 kiriş, iki grupa bölünerek dört nokta yüklemesi altında eğilme davranışı değerlendirmesi için test edilmiştir. Tüm kirişlerde çekme bölgesinde 416 donatısı kullanılmıştır. Bu araştırmadaki ana değişken kiriş yüksekliğince oluşturulan katmanlardaki beton tipidir. Kirişin yüksekliği her biri 50 mm olan 5 katmana ayrılmıştır. “F” grubunda bulunan geleneksel beton kullanılan kirişlerde, çelik lifli beton katmanları aşağıdan başlayarak geleneksel beton katmanlarının yerlerine yerleştirilmiştir. Örnek olarak, F15P10 kirişinin yüksekliği boyunca aşağıdan 150 mm’si çelik lifli betondan, yukarıda kalan 100 mm’si ise geleneksel betondan imal edilmiştir. “P” grubunda bulunan çelik lifli beton kullanılan kirişlerde ise, geleneksel beton katmanları aşağıdan başlayarak çelik lifli beton katmanlarının yerlerine yerleştirilmiştir. Örnek olarak, P10F15 kirişinin yüksekliği boyunca aşağıdan 100 mm’si geleneksel betondan, yukarıda kalan 150 mm’si ise çelik lifli betondan imal edilmiştir. Kirişlerin yük-sehim eğrileri elde edilmiş ve bu eğriler azami yük, kullanım rijitliği, tepe sonrası rijitlik ve eğilme tokluğu açısından değerlendirilmiştir. Araştırma sonucunda göre, yeterli sünekliğin çekme bölgesinde bulunan çelik lifli beton katmanı ile sağlanabileceği belirlenmiştir. Bu katmanın, çekme bölgesinde olduğu sürece yüksekliğinin ve yerinin davranışı önemli bir şekilde etkilemediği görülmüştür.  
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    Article
    23 Ekim 2011 Van, Türkiye Depremi Sırasında Gedikbulak Okul Binasının Yıkılması
    (2023) Mertol, Halit Cenan
    23 Ekim 2011 tarihinde Türkiye'nin doğusunda Mw = 7,2 (ML = 6,7) büyüklüğünde bir deprem meydana gelmiştir. Yer hareketinin en yüksek yer ivmesi 0.18×g olarak ölçülmüştür. Deprem, yığma ve betonarme yapılarda küçük çatlaklardan tamamen göçmeye kadar değişen hasarlara neden olmuştur. Bu depremde, Gedikbulak Köyü'ndeki 4 katlı betonarme okul binası tamamen yıkılmıştır. Bu okul binası Türkiye Cumhuriyeti Milli Eğitim Bakanlığı tarafından hazırlanan tipik bir projedir (No: 10370) ve bu tipik proje Türkiye'nin çeşitli yerlerinde okul binalarının yapımında yaygın olarak kullanılmıştır. Bu makalede, Atılım Üniversitesi Keşif Takımının ana şoktan birkaç gün sonra okul binasının yıkıldığı yerde yaptığı saha gözlemleri ve okul binasının yıkılma nedenleri üzerinde durularak detaylı analizleri anlatılmaktadır. Analiz sonuçları göçmenin, düz donatı çubuklarının yetersiz kenetlenme ve bindirme boyu nedeniyle perde duvarların tabanının (hem x- hem de y- yönlerinde) temelden ayrılmasından kaynaklandığını göstermiştir. Yapılan inceleme ve analizler sonucunda benzer mevcut okul binalarının gelecekteki depremlerde yıkılmaması için önerilerde bulunulmuştur.
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    Article
    Citation - WoS: 15
    Citation - Scopus: 16
    Damage Observation of Reinforced Concrete Buildings After 2020 Sivrice (elazig) Earthquake, Turkey
    (Asce-amer Soc Civil Engineers, 2021) Cenan Mertol, Halit; Tunc, Gokhan; Akis, Tolga
    An earthquake with a magnitude of M-w = 6.8 and a depth of approximately 8.06 km occurred on January 24, 2020, with the epicenter near the town of Sivrice in Elazig province, Turkey. The earthquake resulted in numerous collapses and severe structural damage to the buildings located in the downtowns and villages of Elazig and Malatya provinces. A technical team investigated the earthquake-affected areas, and this study presents their observations and findings with respect to reinforced concrete buildings. It was concluded that almost all of the collapsed or severely-damaged reinforced concrete buildings were constructed between 1975 and 1998. The design and construction of these buildings did not comply with the specifications of the Turkish earthquake codes valid at that time. The failures and severe damage of the buildings are associated with poor material quality, inadequate reinforcement configuration, and framing problems related to their lateral load-carrying systems. Therefore, it is recommended that buildings constructed between 1975 and 1998 in the region be structurally re-evaluated to avoid additional loss of life and property in future earthquakes. (C) 2021 American Society of Civil Engineers.
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    Article
    Citation - WoS: 3
    Flexural Behavior of Reinforced Concrete Beams With Various Layers of Conventional and Steel Fiber Reinforced Concrete
    (Gazi Univ, 2022) Mertol, Halit Cenan
    Flexural behavior of reinforced concrete (RC) beams having various layers of conventional concrete (CC) and steel fiber reinforced concrete (SFRC) were investigated in this study. Two groups of five beams (180x250x3500 mm) were tested under four-point loading to evaluate the flexural behavior. Both of these groups of beams were reinforced with 4 phi 16 reinforcing bars. The main variable in this research was the concrete type of the layers throughout the height of the specimen. The height of the cross-section of the beams was divided into 5 layers, each having 50 mm thicknesses. In group "F" specimens, SFRC layers were added to the layers of a CC beam, starting from the bottom, as replacements of CC layers, i.e. F15P10 represented that the bottom 150 mm was cast using SFRC whereas the top 100 mm was cast using CC. In group "P" specimens, CC layers were added to the layers of a SFRC beam, starting from the bottom, as replacements of SFRC layers, i.e. P10F15 represented that the bottom 100 mm was cast using CC whereas the top 150 mm was cast using SFRC. Experimental load-deflection curves were evaluated based on ultimate load, service/post-peak stiffnesses, and flexural toughness. It can be concluded that reasonable ductility may be achieved by adding SFRC at the tension side no matter how thick the layer is and where it is located.