scholarly journals Limit Displacement under Compressive Axial Force of R/C Columns using High Strength Concrete and High Strength Steel

2005 ◽  
Vol 16 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Yuji Ishikawa ◽  
Hideki Kimura
Keyword(s):  
Axial Force ◽  
High Strength Steel ◽  
High Strength Concrete ◽  
High Strength ◽  
Strength Concrete ◽  
Compressive Axial Force

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.

The Experimental Study on Internal Force Redistribution of High Strength Steel-High Strength Concrete Continuous Composite Beam

2013 ◽  
Vol 859 ◽  
pp. 304-308
Author(s):  
Qi Yin Shi ◽  
Qiu Wei Meng
Keyword(s):  
High Strength Steel ◽  
High Strength Concrete ◽  
Composite Beam ◽  
High Strength ◽  
Internal Force ◽  
Composite Beams ◽  
Limiting State ◽  
Strength Concrete ◽  
Moment Redistribution ◽  
Load Tests

To study the internal force redistribution of high strength outer-plated steel-high strength concrete continuous composite beam, static load tests of two continuous composite beam specimens were conducted. The paper analyses the causes of internal force distribution of continuous composite beams. By using high strength steel and high strength concrete reasonably, plastic strain on sections of both the negative and positive maximum moment got fully developed at the load-bearing limiting state, and the continuous composite beams have sufficient plastic rotation ability and ductility to develop full moment redistribution.

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