Seismic vulnerability and resilience of steel-reinforced concrete (SRC) composite column buildings with non-seismic details

2021 ◽  
Vol 244 ◽  
pp. 112810
Author(s):  
W.M. Hassan ◽  
J.C. Reyes ◽  
C. González ◽  
F.J. Pallarés ◽  
J.S. Spinel
Keyword(s):  
Reinforced Concrete ◽  
Seismic Vulnerability ◽  
Composite Column ◽  
Steel Reinforced Concrete

Ultimate Bearing Capacity Research on the Steel Tube Composite Column Filled with Steel Reinforced Concrete

2010 ◽  
Vol 163-167 ◽  
pp. 2106-2111
Author(s):  
Shan Shan Sun ◽  
Jun Hai Zhao ◽  
Xue Ying Wei ◽  
Hai Bing Xiao
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Concrete Strength ◽  
Three Dimensional ◽  
Steel Tube ◽  
Reduction Factor ◽  
Element Analysis ◽  
Composite Column ◽  
Steel Reinforced Concrete ◽  
Finite Element Software

The ultimate load-bearing capacities of axially-loaded steel tube composite column filled with steel reinforced concrete under three-dimensional stress based on the unified strength theory are analyzed in this paper. The influence of thickness-length ratio and scale effect are considered by introducing the reduction factor of equivalent constraints and concrete strength reduction factor, respectively. The nonlinear three-dimensional finite element analysis of the steel tube composite column filled with steel reinforced concrete is performed by the finite element software ANSYS. The numerical and the analytical results are compared with experimental results and good agreement can be observed. A series of numerical simulation technologies is studied and described in detail, such as selecting element type, defining material model of steel and concrete, establishing global finite element model with discrete reinforced bars elements, applying loads to the specimens, and setting solution controls option. The results indicate that ANSYS finite element software may well simulate the behavior of the steel tube composite column filled with steel reinforced concrete under axial compression through reasonably selecting parameters.

Bearing Capacity Calculating of GFRP Tube Filled with Steel-Reinforced Concrete Composite Column Subjected to Eccentric Loading

2010 ◽  
Vol 163-167 ◽  
pp. 191-195
Author(s):  
Bai Ling Chen ◽  
Lian Guang Wang ◽  
Guo Peng Qin
Keyword(s):  
Reinforced Concrete ◽  
Bearing Capacity ◽  
Limit Equilibrium ◽  
Bending Rigidity ◽  
Composite Column ◽  
Composite Columns ◽  
Steel Reinforced Concrete ◽  
Steel Bar ◽  
Tensile Zone ◽  
Positive Effect

GFRP tube filled with steel-reinforced concrete composite column, GSRC, is a new kind of composite column, in which the (shaped steel) reinforcing steel bar is set and the concrete is poured into GFRP tube. Under the action of eccentric loading, the damage signs of the composite columns with smaller and larger eccentricity were respectively that GFRP tube of compressive zone was crushed and the fiber of GFRP tube of tensional zone was ruptured. The tight hoop effect of the concrete given by GFRP tube only existed in compressive zone, and the restriction to the concrete of tensile zone was unobvious. The shaped steel inside GFRP tube had a positive effect on the bending rigidity and the bearing capacity of the member. Using the limit equilibrium theory, the calculation formula of the bearing capacity of GSRC subjected to eccentric loading was created. The calculated results agreed well with the experimental ones.

The Research on the Stability of the Steel Tube Filled with Steel-Reinforce Concrete Subjected to Axial Compression after High Temperature

2014 ◽  
Vol 578-579 ◽  
pp. 1601-1604
Author(s):  
Bai Dong Zhao ◽  
Xiao Yu ◽  
Pei Chao Chen
Keyword(s):  
Reinforced Concrete ◽  
High Temperature ◽  
Axial Compression ◽  
Slenderness Ratio ◽  
Reinforce Concrete ◽  
Steel Tube ◽  
Composite Column ◽  
Steel Reinforced Concrete ◽  
The Stability

In this paper, we do the research on the steel tube filled with steel-reinforced concrete subjected to axial compression after high temperature by changing the temperature and the slenderness ratio.The influence of the temperature and slenderness ratio on the composite column and its stability formula of the composite column after high temperature was gotten by the research.

The mathematical modelling of corrosion in hot dip galvanized steel reinforced concrete

2011 ◽  
Vol 2 (1) ◽  
pp. 1-12
Author(s):  
A. Hegyi ◽  
H. Vermeşan ◽  
V. Rus
Keyword(s):  
Mathematical Model ◽  
Reinforced Concrete ◽  
Numerical Model ◽  
Equation System ◽  
Galvanized Steel ◽  
Steel Reinforced Concrete ◽  
Numeric Model ◽  
Physical And Mathematical Models ◽  
Physical Phenomena ◽  
The Mathematical Model

Abstract In this paper we wish to present the numerical model elaborated in order to simulate some physical phenomena that influence the general deterioration of steel, whether hot dip galvanized or not, in reinforced concrete. We describe the physical and mathematical models, establishing the corresponding equation system, the initial and boundary conditions. We have also presented the numeric model associated to the mathematical model and the numeric methods of discretization and solution of the differential equations system that describes the mathematical model.

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