Experimental study of the seismic behavior of obliquely loaded concrete columns reinforced with high‐strength steel bars

2021 ◽  
Author(s):  
Chunyang Liu ◽  
Guixin Yu ◽  
Fei Li ◽  
Changqun Guo ◽  
Xisen Fan
Keyword(s):  
Experimental Study ◽  
High Strength Steel ◽  
Seismic Behavior ◽  
High Strength ◽  
Concrete Columns ◽  
Steel Bars

Experimental Studies on Seismic Performance of High Strength Reinforced Concrete Columns

2012 ◽  
Vol 166-169 ◽  
pp. 919-926
Author(s):  
Wen Xing Yang ◽  
Qing Xuan Shi ◽  
Hui Xiang Sun
Keyword(s):  
Experimental Study ◽  
High Strength Concrete ◽  
Seismic Behavior ◽  
Experimental Studies ◽  
High Strength ◽  
Concrete Columns ◽  
Seismic Capacity ◽  
Axial Compression Ratio ◽  
And Performance ◽  
High Strength Concrete Columns

This paper summarized an experimental study on seismic behavior of high strength steel reinforced high strength concrete columns under horizontal cyclic loading. Influencing factors of 14 columns included axial compression ratio, shape of hoops, shear span ratio, stirrup ratio, strength of concrete and stirrups, etc. Influence of seismic capacity and performance of columns by these factors were involved in. It indicates that high-strength stirrups could improve seismic capability of member availability.

Double-tube concrete columns with a high-strength internal steel tube: Concept and behaviour under axial compression

2018 ◽  
Vol 21 (10) ◽  
pp. 1585-1594 ◽  
Author(s):  
Jin-Guang Teng ◽  
Zihao Wang ◽  
Tao Yu ◽  
Yang Zhao ◽  
Li-Juan Li
Keyword(s):  
Experimental Study ◽  
High Strength Steel ◽  
High Strength ◽  
Concrete Columns ◽  
Steel Tube ◽  
Reinforced Polymer ◽  
Glass Fibre Reinforced Polymer ◽  
Fibre Reinforced Polymer ◽  
Glass Fibre Reinforced ◽  
Polymer Tube

This article presents a new form of fibre-reinforced polymer-concrete-steel hybrid columns and demonstrates some of its expected advantages using results from an experimental study. These columns consist of a concrete-filled fibre-reinforced polymer tube that is internally reinforced with a high-strength steel tube and are referred to as hybrid double-tube concrete columns. The three components in hybrid double-tube concrete columns (i.e. the external fibre-reinforced polymer tube, the concrete infill and the internal high-strength steel tube) are combined in an optimal manner to deliver excellent short- and long-term performance. The experimental study included axial compression tests on eight hybrid double-tube concrete columns with a glass fibre–reinforced polymer external tube covering different glass fibre–reinforced polymer tube thicknesses and diameters as well as different high-strength steel tube diameters. The experimental results show that in hybrid double-tube concrete columns, the concrete is well confined by both the fibre-reinforced polymer tube and the high-strength steel tube, and the buckling of the high-strength steel tube is suppressed so that its high material strength can be effectively utilized, leading to excellent column performance. Due to the high yield stress of high-strength steel, the hoop stress developed to confine the core concrete is much higher than can be derived from a normal-strength steel tube, giving the use of high-strength steel in double-tube concrete columns an additional advantage.

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