Axial Load Behavior of Acomposite Wall Strengthened with an Embedded Octagon Cold-Formed Steel

2015 ◽  
Vol 754-755 ◽  
pp. 437-441 ◽  
Author(s):  
Salam Jasim Hilo ◽  
Wan Hamidon Wan Badaruzzaman ◽  
Siti Aminah Osman ◽  
Ahmed W. Al Zand
Keyword(s):  
Axial Load ◽  
Steel Sheet ◽  
Three Dimensional ◽  
Dimensional Finite Element ◽  
Cold Formed Steel ◽  
Composite Wall ◽  
Different Shapes ◽  
Three Dimensional Finite Element ◽  
Composite Walls ◽  
Load Behavior

This study investigates the axial load behavior of an existing composite wall consists of a double-skinned profiled steel sheet in-filled with normal concrete. Three different composite walls in three-dimensional finite element models were developed, i.e. profiled steel sheet (PSS), core concrete, and the full composite wall system. The models were simulated and compared with the experimental results published by other researchers. Studies are then carried out on different effect of varying the PSS thicknesses, an embedded octagon cold-formed steel (CFS) thickness, and an embedded octagon CFS supported by two stiffeners with different shapes. As a result, the ultimate axial load of the composite wall was increased by approximately 3.3% when PSS thickness changed from 0.8 mm to 1.0mm. Meanwhile, the ultimate axial load was also increased by 17% and 55% when an embedded octagon CFS with thicknesses of 0.8 mm and 1.0 mm were used. Lastly, the ultimate axial load was raised by 54% and 78% when an L-shaped and a T-shaped stiffener were added.

Optimized Design of Larsen Steel Sheet Pile Supporting Structure Based on Parameter Sensitivity

2014 ◽  
Vol 501-504 ◽  
pp. 770-776 ◽  
Author(s):  
Jin Rong Xie ◽  
Ba Tong Li ◽  
Pi Hui Chen ◽  
Yu Qiong Zhuang
Keyword(s):  
Steel Sheet ◽  
Three Dimensional ◽  
Horizontal Displacement ◽  
Optimized Design ◽  
Sheet Pile ◽  
Supporting Structure ◽  
Geological Conditions ◽  
Key Factor ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

Based on the transformation project of rain and sewage diversion in a city, the optimized design of Larsen steel sheet pile supporting structure in pipe-pit excavation was made. Using three-dimensional finite element method to analyze the retaining characteristics of Larsen steel sheet pile, soil deformation of adjacent transverse brace in the middle position and surface subsidence were regarded as design control indicators; through numerical analysis of the geological conditions, load, pile length, horizontal interval of transverse brace and other factors on the sensitivity of the design control indicators, horizontal displacement of brace was regarded as a key factor in the optimal design, and accordingly, related optimized program was proposed. The implementation results show that the optimized scheme can improve the efficiency of construction, protect the safety of construction, and provide a reference for the design and construction of similar projects.

scholarly journals Three-dimensional Modeling of an Old Masonry Bridge and Assessing Its Current Capacity

2020 ◽  
Author(s):  
Saeed Sotoudeh ◽  
Meysam Jahangiri ◽  
Masoud Ranjbarnia ◽  
Jabbar-Ali Zakeri
Keyword(s):  
Axial Load ◽  
Three Dimensional ◽  
Travel Speed ◽  
Masonry Arch ◽  
The Road ◽  
Three Dimensional Modeling ◽  
Dimensional Finite Element ◽  
Depth Study ◽  
Train Speed ◽  
Three Dimensional Finite Element

Masonry bridges are among the main structures built along the road and railway routes. These structures are generally old and have historical value. Considering the increased axial load and passing speed from these bridges, an in-depth study of these structures and their potential is of paramount importance. In the present study, an old masonry arch bridge located in 475 km of Western Iranian railway is investigated. For the detailed modeling of this structure, a three-dimensional finite element method (3DFEM) was implemented to take into account the details of the bridge and the train passing over it. The developed model was calibrated and validated using the dynamic field test results. The obtained results showed that the increase in the axial load and train speed over the bridge must be done carefully because exceeding the travel speed of 90 km/h and increasing the axial load from 20 to 30 ton makes serious problems in the bridge and interrupts its performance. Furthermore, it was found that the adequacy factor of the bridge under the standard load of LM71 is over 2.

Inside and Outside Earth Pressure Research of Steel Sheet Pile Cofferdam

2012 ◽  
Vol 446-449 ◽  
pp. 1822-1826
Author(s):  
Bao Lin Xiong ◽  
Jin Song Tang ◽  
Wei Chen
Keyword(s):  
Steel Sheet ◽  
Three Dimensional ◽  
Earth Pressure ◽  
Element Model ◽  
Sheet Pile ◽  
Soil Pressure ◽  
River Bed ◽  
Internal Support ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

As the cofferdam makes the water flow change, the river bed near the cofferdam has been washed; soil pressure on the cofferdam will be changed. In order to better grasp the force of the cofferdam, the earth pressure on the cofferdam need to be monitored. As it is difficult to monitor occasion, the computing earth pressure is necessary. In this paper, three-dimensional finite element model on the steel sheet pile, purlin, internal support and soil can be established. Through compassion computing value of model and monitoring value, conclusions are drawn.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Tire Modeling by Finite Elements

1992 ◽  
Vol 20 (1) ◽  
pp. 33-56 ◽  
Author(s):  
L. O. Faria ◽  
J. T. Oden ◽  
B. Yavari ◽  
W. W. Tworzydlo ◽  
J. M. Bass ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Rolling Contact ◽  
Test Problems ◽  
State Behavior ◽  
Normal Contact ◽  
New Developments ◽  
Applied Torque ◽  
Dimensional Finite Element ◽  
Tire Modeling ◽  
Three Dimensional Finite Element

Abstract Recent advances in the development of a general three-dimensional finite element methodology for modeling large deformation steady state behavior of tire structures is presented. The new developments outlined here include the extension of the material modeling capabilities to include viscoelastic materials and a generalization of the formulation of the rolling contact problem to include special nonlinear constraints. These constraints include normal contact load, applied torque, and constant pressure-volume. Several new test problems and examples of tire analysis are presented.

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