Analytical model for high-strength concrete columns with square cross-section

2008 ◽  
Vol 28 (3) ◽  
pp. 295-316 ◽  
Author(s):  
G. Campione
Keyword(s):  
Analytical Model ◽  
Cross Section ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Strength Concrete ◽  
High Strength Concrete Columns

Failure Probability of Short High-Strength Concrete Tied Columns

2003 ◽  
Vol 19 (2) ◽  
pp. 299-309
Author(s):  
Wen-Yao Lu ◽  
Ing-Juang Lin
Keyword(s):  
Monte Carlo ◽  
Cross Section ◽  
Failure Probability ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Monte Carlo Technique ◽  
Strength Model ◽  
Strength Concrete ◽  
High Strength Concrete Columns

ABSTRACTThis paper aims to investigate the failure probability of short high-strength concrete tied columns using the Monte Carlo technique. The random variables considered in this study are the strength of concrete, the strength of steels, the cross-section dimensions, the location of the steel reinforcement, the variability of strength model and the loads. The results show that the failure probabilities of high-strength concrete columns designed according to the ACI Code are relatively high. The current ACI Code may not be conservative for design of short high-strength concrete tied columns.

scholarly journals Non-linear Analysis of Slender High Strength Concrete Column

2019 ◽  
Vol 5 (7) ◽  
pp. 1440-1451
Author(s):  
Ernesto Fenollosa ◽  
Iván Cabrera ◽  
Verónica Llopis ◽  
Adolfo Alonso
Keyword(s):  
Bearing Capacity ◽  
Cross Section ◽  
Axial Force ◽  
High Strength Concrete ◽  
Bending Moment ◽  
High Strength ◽  
Concrete Columns ◽  
Strength Concrete ◽  
The Moment ◽  
High Strength Concrete Columns

This article shows the influence of axial force eccentricity on high strength concrete columns design. The behavior of columns made of normal, middle and high strength concrete with slenderness values between 20 and 60 under an eccentric axial force has been studied. Structural analysis has been developed by means of software which considers both geometrical and mechanical non-linearity. The sequence of points defined by increasing values of axial force and bending moment produced by eccentricity has been represented on the cross-section interaction diagram until failure for each tested column. Then, diagrams depicting the relationship between failure axial force and column's slenderness have been drawn. The loss of bearing capacity of the member for normal and middle strength columns when compared with the bearing capacity of their cross-section is more noticeable as axial force eccentricity assumes higher values. However, this situation reverses for high strength columns with high slenderness values. On the basis of results obtained, the accuracy level for the moment magnifier method was checked. Despite the good concordance in most of the cases, it was verified that the moment magnifier method leads to excessively tight results for high strength concrete columns with high slenderness values. In these specific cases, a coefficient which amends the column rigidity is proposed so as to obtain safer values.

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