DEFINITION OF ONE EMPIRICAL MODEL SO AS TO REVIEW SAFETY FACTORS USED IN STRUCTURAL DESIGN AND ANALYSIS
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND CONSTRUCTION ENGINEERING
Author(s): FELIPE PINA GARCIA , RAUL PEREDA GARCIA , JULIO MANUEL DE LUIS RUIZ
Abstract: In the design phase structures generally are designed according to their strength capacity and should ensure proper service during its lifetime. The structural calculation is made from a certain material and considering loads and overloads. Due to the uncertainties in the construction processes and even when the necessary tests are performed, it is necessary to use safety factors that enable encompass the effect of these "imponderables". In the case of bridges and viaducts, before being put into service, is mandatory to check the correct operation of the structure from the "load tests". In them, especially in static load tests, vertical displacements of significant points of the structure are compared. In this way, the vertical displacements measured are compared with those obtained with the structural analysis are compared; and recovery of its original geometry. The present research focuses on the comparison of both results of load tests in different structures for a statistical study
- Publication Date: 19-Apr-2015
- DOI: 10.15224/978-1-63248-042-2-10
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EXPERIMENTAL AND NUMERICAL MODELING OF FLOW OVER A SPILLWAY
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND CONSTRUCTION ENGINEERING
Author(s): M. SALIH KIRKGOZ , M. SAMI AKOZ , N. GOKSU SOYDAN , OGUZ SIMSEK, VEYSEL GUMUS
Abstract: The measured velocity field and free surface profile of flow for two different discharges over a spillway model are used for validation purpose of the two-dimensional computational results of the same flow cases. The governing equations of the spillway flows are numerically solved using Finite Volume Method. The turbulence closure models; Standard k-, Renormalization Group k-, Realizable k-, Modified k-, Shear Stress Transport and Reynolds Stress Model are used in the numerical simulation and the flow profiles are computed using Volume of Fluid (VOF) method. The testing of the numerical results for grid-independent numerical solution is carried out using a GCI analysis. The comparisons of the computed and experimental results for both cases show that the numerical results from the Realizable k-ε model is more successful in predicting the velocity field and free surface of the spillway flow
- Publication Date: 19-Apr-2015
- DOI: 10.15224/978-1-63248-042-2-11
- Views: 0
- Downloads: 0