Dever Uygulaması Yapılmış Bir Yatay Kurbanın Sonlu Elemanlar Yöntemi ile İncelenmesi

Bu çalışmada dever uygulaması yapılmış bir yatay kurbanın kaplama tabakası altındaki gerilme-birim şekil değiştirme ve kaplama ömrü değerleri dever sebebiyle değişen kesitlere bağlı olarak analiz edilmiştir. Bu amaçla deverin 0-8 (%) değerleri arasında değişimine bağlı olarak ve ayrıca tekerlek temas gerilmesinin pozisyonu değiştirilerek birim şekil değiştirme değerleri sonlu elemanlar yöntemi ile analiz edilmiştir. Çalışmadan elde edilen sonuçlara göre dever değerinin artmasına bağlı olarak kaplama ömrü azalmıştır. Bu azalma değeri deverin 8% olması ve yükleme noktasının kaplama kenarına olan mesafesinin azalması ile 34% seviyesinde hesaplanmıştır.

A Finite Element Investigation of the Superelevated Horizontal Curve

Stress-strain analyses are studied under the bottom of the pavement layer, and pavement life valuesare calculated depending on the cross-section variation because of the superelevation in horizontal curves. Forthis purpose, 1st principal total mechanical strain values are analyzed with the superelevation values changingbetween 0-8 (%) and the different positions of wheel contact pressure. Finite element method is used foranalysis. According to results of the study, it is obtained that pavement life decreases with the increasingsuperelevation, in the case of 8% superelevation and decreasing the distance to pavement edge, pavement lifedecreasing gets to 34%.

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Souza F.V. and Castro L.S.,Effect of Temperature on the Mechanical Response of Thermo-Viscoelastic Asphalt Pavements, Construction and Building Materilas, 30 (2012) 574-582.
Ekwulo E.O. and Eme D.B.,Expected Traffic, Pavement Thickness, Fatigue and Rutting Strain Relationship for Low Volume Asphalt Pavement, The International Journal of Engineering and Science, 2-8 (2013)62-77.
Zhi S., Gun W.W., Hui L.X., Bo T., Evaluation of Fatigue Crack Behavior in Asphalt Concrete Pavements, Construction and Building Materials, 27 (2012) 117-125.
Akbulut H. and Aslantas K.,Finite Element Analysis of Stress Distribution on Bituminous Pavement and Failure Mechanism, Materials and Design, 26 (2005) 383-387.
Ameri M., Mansourian A., Khavas M. H., Aliha M. R. M., Ayatollahi M.R., Cracked Asphalt Pavement Under Traffic Loading – A 3D Finite Element Analysis, Engineering Fracture Mechanics, 78 (2011) 1817-1826.
Hadi M.N.S. and Bodhinayake B. C.,Non- Linear Finite Element Analysis of Flexible Pavements, Advances in Engineering Software, 34 (2003) 657-662.
Özcanan S. and Akpınar M. V., Determining the Critical Tire and Axle Configuration for Flexible Pavements Based on Mechanistic Analysis, Technical Journal of Turkish Chamber of Civil Engineers, 25-1 (2014) 6625- 6654.
Abed A.H. and Al-Azzawi A.A., Evaluation of Rutting Depth in Flexible Pavements by Using Finite Element Analysis and Local Empirical Model, American Journal of Engineering and Applied Sciences, 5-2 (2012) 163-169.
Chang L. and Linglin L., Criteria for Controlling Rutting of Asphalt Concrete Materials in Sloped Pavement, Construction and Building Materials, 35 (2012) 330-339. [10] Al-Azzawi A.A.,Finite Element Analysis of Flexible Pavements Strengthed with Geogrid, ARPN Journal of Engineering and Applied Sciences, 7-10 (2012) 1295-1299.
Gajewski J. and Sadowski T., Sensitivity Analysis of Crack Propagation in Pavement Bituminous Layered Structures Using a Hybrid System Integrating Artificial Neural Networks and Finite Element Method, Computational Materials Science, 82 (2014) 114-117.
Sağlık A., Orhan F., Güngör A.G.,Bitumen Class Choosing Maps for HMA Paved Roads, Republic of Turkey Ministry of Transport, Maritime Affairs and Comminications, Ankara, (2012).
Yongjie L., Shaopu Y., Jianxi W., Research on Pavement Longitudinal Crack Propagation Under Non-Uniform Vehicle Loading, Engineering Failure Analysis, 42 (2014) 22-31.
Mulungye R.M., Owende P.M.O., Mellon K.,Finite Element Modelling of Flexible Pavements on Soft Soil Subgrades, Materials and Design, 28 (2007) 739-756.
Huang Y. H.,Pavement Analysis and Design, Pearson Prentice-Hall, New Jersey, (1993).
Finn F., Saraf C.L., Kulkarni R., Nair K., Smith W. Abdullah A., Development of Pavement Structural Subsystems NCHRP Report 291, Transportation Research Board, Washington (DC), (1986).
Walubita L.F. and Ven M.F.C.,Stresses and Strains in Asphalt-Surfacing Pavements, South African Transport Conference: Action in Transport for the New Millennium, South Africa, (2000).