Open Access Open Access  Restricted Access Subscription or Fee Access

Modelling of Concrete Slab Tensile Stresses for Apron International Al-Najaf Airport

Mohammed Abbas Aljumaili

Abstract


The objective of this study was to develop Three Dimensional Finite Element Model (3D-FEM) that can be used to investigate the structural analysis of apron area plain and reinforced concrete slab under Airbus A380-800 aircraft land gear loading. The computer program ANSYS (2014) was selected to develop 3D-FEM for this study. Suggested rigid pavement for apron area was studied with different thickness (20,30, 40 and 50 mm) and Young modululi (E1 = 30000[MPa], E2 = 40000[MPa], E3 = 50000[MPa] resting on various reaction modululi (k) of subgrade layer: k1=15[MN/m3], k2=30[MN/m3], k3= 50[MN/m3], k4=75[MN/m3], and k5=150[MN/m3]. The structural design of apron concrete pavement including geometrical and loading characteristics of loading gear configurations, material properties of apron concrete layers and apron pavement responses such as; total stresses and deflections by finite element methods. Statistics model have been developed to correlation of maximum tensile stress, elastic modulus and thickness of concrete slab.

Full Text:

PDF

References


Federal Aviation Administration, Advisory Circular 150/5335-5, Standardized Method of Reporting Airport Pavement Strength. U.S. Department, FAA, 2007.

Navneet G, Concrete Airfield Pavement Design, Using FAARFIELD for Rigid Overlays. Concrete Airport Pavement Workshop, Atlanta, Georgia, 2009.

ANSYS "ANSYS Help". Release 14.0, USA, 2014.

Zarojanu H. Gh, Ciongradi IP, Budescu M, et al. Finite Element Modeling of the Reinforced Airport Slabs. Proc. of the 5th Internat. Conf. on Boundary and Finite Element, Oradea, 2000.

Ringo BC. The Structurally Reinforced Slab-on-Grade, Engineering Data Report, Number 33, The Concrete Reinforced Steel Institute, Schaumburg, IL, 1989.

Ringo BC, Anderson RB. Designing Floor Slab on Grade, The Aberdeen Group, printed in United States of America, 1996.

ACI Committee 318, Building Code Requirements for Structural Concrete (ACI 318M-14) and Commentary. American Concrete Institute, USA, 2014.

Nilson H, David Darwin, Charles W. Dolan, Design of Concrete Structures. McGraw Hill Companies, Printed in Singapore, 2004.

Zarojanu H. Gh, Bulgaru GD. Aeroporturi. Edit. Matei-Teiu Botez, Iaşi, 2010.

Radu Cojocaru, Jorge C. Pais, Radu Andrei, et al. Modeling of Airport Pavement Structure Made of RCC and Recycled Cement Concrete Configuration of Landing Gears. Transportation Technology Publications. Adv Mater Res. 2013; 649: 254–257p.

ASTM C78, Standard Test Method for Flexural Strength of Concrete Using Simple Beam with Third-Point Loading. Annual Book of ASTM Standards, Vol 03.01, 2002.

ASTM C469, Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression1. Annual Book of ASTM Standards, Vol 04.02, 2002.




DOI: https://doi.org/10.3759/ttea.v3i2.2847

Refbacks

  • There are currently no refbacks.