Finite Element Analysis on Bending Resistance Capacity of Rectangular Concrete-Filled Steel Tube Beam of High-Rise Building

2013 ◽  
Vol 7 (4) ◽  
pp. 76-84
Author(s):  
Li Yue ◽  
Hongru Cai ◽  
Shichun Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Steel Tube ◽  
Element Analysis ◽  
Concrete Filled Steel Tube ◽  
High Rise ◽  
High Rise Building ◽  
Bending Resistance

Nonlinear Finite Element Analysis of Stiffened T-Shaped Thin-Walled Concrete-Filled Steel Tube Composite Columns

2012 ◽  
Vol 193-194 ◽  
pp. 1461-1464
Author(s):  
Bai Shou Li ◽  
Ai Hua Jin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Steel Tube ◽  
Ultimate Bearing Capacity ◽  
Element Analysis ◽  
Concrete Filled Steel Tube ◽  
Composite Columns ◽  
Short Columns ◽  
Thin Walled

Based on the characteristics of the special-shaped concrete-filled steel tubes and consideration of material nonlinearity of constitutive relation, stimulation of 6 T-shaped thin-walled ribbed and un-ribbed concrete-filled steel tube short columns is implemented, as well as comparable analysis of stress, strain, displacement and bearing capacity, through the finite element analysis software ANSYS. The result indicates that the rib can effectively improve the ductility, delaying the buckling occurs, which enhances the core concrete confinement effect, so as the stimulated ultimate bearing capacity which is greater than nominal ultimate bearing capacity.

Outsourcing of Concrete Filled Steel Tube Strengthened CFST Axial Compression Short Columns Finite Element Analysis

2014 ◽  
Vol 525 ◽  
pp. 568-572
Author(s):  
Yang Feng Wu ◽  
Hong Mei Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Pipe Wall ◽  
Concrete Strength ◽  
Steel Tube ◽  
Element Analysis ◽  
Pipe Wall Thickness ◽  
Concrete Filled Steel Tube ◽  
Strength Grade

A new composite strengthening method that the CFST short column was strengthened with concrete filled steel tube was presented. Through the finite element analysis of five specimens with strengthening circular concrete filled steel tube columns and a specimen without strengthening circular concrete filled steel tube to explore the impact of the outer layer of concrete strength grade, external pipe wall thickness for the ultimate bearing capacity of concrete filled steel tube columns. The results show that with the increase of the outer pipe wall thickness, double concrete filled steel tube column yield strength and ultimate strength have increased. As the outer concrete strength grade increased as the specimen bearing capacity increased. When the concrete strength grade greater than C40, the improvement of concrete strength for specimen ultimate bearing capacity is not great.

Reassessment of the load capacity of an aged bridge under new design methods

2021 ◽  
Author(s):  
Li Dong ◽  
Dongli Sun ◽  
Yizhuo Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Load Capacity ◽  
Steel Tube ◽  
Calculation Methods ◽  
Element Analysis ◽  
Concrete Filled Steel Tube ◽  
Operation And Maintenance ◽  
Fast Development ◽  
And Performance

<p>With the fast development of design and calculation methods, the loads and checking requirements of the bridge are constantly improving, and the reassessment of aged bridges is necessary in order to estimate the residual load capacity and performance of these structures. By using new design technologies and durability concepts, through the refined spatial finite element analysis of a 100 m span concrete-filled steel tube arch bridge designed in 2003, the reduction of the load capacity caused by the change of loads and codes is calculated; the errors caused by the lack of design and calculation methods are compared; the decrease of load capacity caused by durability degradation in 10 and 20 years is estimated. The method can effectively evaluate how the aged bridges functions now, so that it can provide guidance for the future operation and maintenance of the aged bridges.</p>

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