Tensile Behavior Prediction of Steel Plates with Pitting Corrosion

2011 ◽  
Vol 138-139 ◽  
pp. 816-820 ◽  
Author(s):  
Pang Jo Chun ◽  
Daichi Yoshii ◽  
J.M.R.S. Appuhamy ◽  
Mitao Ohga
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Parametric Study ◽  
Element Model ◽  
Tensile Tests ◽  
Tensile Behavior ◽  
Steel Plates ◽  
Surface Irregularity ◽  
Corrosion Pit ◽  
Girder Bridge

We report the tensile behavior of corroded steel plates with huge corrosion pit. The behavior of corroded steel plates is not easy to predict because of its surface roughness. We therefore conducted tensile tests first to understand the behavior experimentally using the corroded steel plates taken from plate girder bridge. Before the testing, a 3D laser prove system was employed to measure the surface irregularity. In addition, finite element model was developed here to predict the behavior numerically. The model was validated by the tensile test results so that the finite element model can be reliably used for the parametric study. It is found from the parametric study that the location of huge corrosion pit affects the tensile strength, at most 15%.

Ultimate strength of columns laterally braced by girt–diaphragm systems

1989 ◽  
Vol 16 (3) ◽  
pp. 227-238 ◽  
Author(s):  
Bruno Massicotte ◽  
Denis Beaulieu ◽  
André Picard
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Ultimate Strength ◽  
Parametric Study ◽  
Design Method ◽  
Element Model ◽  
Structural System ◽  
Industrial Buildings ◽  
Stabilizing Effect ◽  
Stability Statistics

This paper deals with the stabilizing effect of girts and cladding on columns in light industrial buildings. The construction aspects of such systems are briefly reviewed and a description of their behavior is presented. Solutions available to determine column strength in column–girt–diaphragm systems are reviewed. The use of a finite-element-based software is proposed as the only practical way to analyze this type of structural system. Results of a large parametric study using a finite element model are presented and a method to evaluate the ultimate strength of actual columns is introduced. Finally, a simple hand design method is derived. Key words: diaphragm, design, finite element, girt, column, stability, statistics.

Behavior of Embedded Steel Plates in Reinforced Concrete: New Design Basis

2003 ◽  
Author(s):  
Sekhar K. Chakrabarti
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Finite Element Model ◽  
Tensile Loading ◽  
Element Model ◽  
Linear Analysis ◽  
Steel Plates ◽  
Reinforced Concrete Structures ◽  
Analysis And Design ◽  
Design Basis

The behavior and capacity of embedded steel plates in reinforced concrete structures, are studied using a finite-element model developed for non-linear analysis. Strength interaction diagrams and moment-rotation charts useful for analysis and design of such plates, are developed for eccentric compressive and eccentric tensile loading, at failure and collapse. Capacities for a common class of embedded plates with variation in its thickness are computed for the cases of combined eccentric compression and shear.

A Parametric Study for the Seismic Response Analysis of a Nuclear Reactor Building by Using a Three-Dimensional Finite Element Model

2016 ◽  
Author(s):  
Byunghyun Choi ◽  
Akemi Nishida ◽  
Norihiro Nakajima
Keyword(s):  
Finite Element ◽  
Research And Development ◽  
Finite Element Model ◽  
Seismic Response ◽  
Parametric Study ◽  
Three Dimensional ◽  
Element Model ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Uncertainty Parameters

Research and development of three-dimensional vibration simulation technologies for nuclear facilities is one mission of the Center for Computational Science and e-Systems of the Japan Atomic Energy Agency (JAEA). A seismic intensity of upper 5 was observed in the area of High-Temperature Engineering Test Reactor (HTTR) at the Oarai Research and Development Center of JAEA during the 2011 Tohoku earthquake. In this paper, we report a seismic response analysis of this earthquake using three-dimensional models of the HTTR building. We performed a parametric study by using uncertainty parameters. Furthermore, we examined the variation in the response result for the uncertainty parameters to create a valid 3D finite element model.

Computer Modeling and Parametric Study of Thermal Effects in Integral Abutment Bridge

2012 ◽  
Vol 446-449 ◽  
pp. 733-738
Author(s):  
Mohammed Awad ◽  
Tian Lai Yu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Axial Force ◽  
Temperature Rise ◽  
Parametric Study ◽  
Element Model ◽  
Structural Behavior ◽  
Integral Abutment ◽  
Thermally Induced ◽  
Integral Abutment Bridge

Structural behavior of concrete integral abutment bridge subjected to temperature rise was investigated through a numerical modeling and parametric study. Long-term, field monitoring through the summer was performed on Industrial Park Bridge located in Heilongjiang province, China from June 13, 2010 until June 28, 2010. The collected data was used to validate the accuracy of a 3D-finite element model of the bridge which took into account soil-structure interaction. Based on the calibrated finite element model a parametric study considered two parameters, bridge length and abutment height, was carried out to investigate the effects of this parameters on structural behavior of integral abutment bridge subject to temperature rise. It was determined that Thermal load in the superstructure of the integral bridge develop significant magnitudes of bending and axial forces in the superstructure. The largest magnitude of thermally induced moment always occurs near the abutment, and axial force is constant across the length of each span. For bridge thermal expansion, longer bridges and taller abutments cause larger thermally induced superstructure axial force due to development of higher backfill pressure. Generally span length has a higher influence for thermally induced superstructure forces in terms of axial force and bending moment than the abutment height.

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