scholarly journals Behavior evaluation for reinforced concrete columns with rectangular hollow section subjected to axial compression and biaxial bending

2016 ◽  
Vol 11 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Zigang Xu ◽  
Qiang Han ◽  
Chao Huang
Keyword(s):  
Reinforced Concrete ◽  
Axial Compression ◽  
Load Capacity ◽  
Concrete Columns ◽  
Concrete Specimen ◽  
Bridge Columns ◽  
Biaxial Bending ◽  
Reinforced Concrete Columns ◽  
Hollow Section ◽  
Distribution Type

In order to evaluate the behavior of reinforced concrete columns with rectangular hollow section subjected to axial compression and biaxial bending, the calculation formula of load capacity and moment-curvature relationship are derived according to the distribution type of neutral axis in this paper. The load capacity and rotation ductility of the bottom control section of three reinforced concrete specimen bridge columns with rectangular hollow section under different axial compression ratio, reinforcement ratio and stirrup ratio are analyzed based on these calculation formulae. The Mx–My interaction curves and moment-curvature curves of bridge column specimens derived from the theoretical calculation show good agreement with the experimental data obtained by cyclic testing of three specimens under axial compression and biaxial bending. The results show that the P–Mx–My interaction has considerable effects on the behavior of the reinforced concrete bridge columns with rectangular hollow section. If these interaction effects are ignored, then the load capacity and deformation are overestimated and this fact can be crucial from the viewpoint of design.

A combined experimental and numerical analysis on the seismic behavior of short reinforced concrete columns with different structural sizes and axial compression ratios

2017 ◽  
Vol 27 (9) ◽  
pp. 1416-1447 ◽  
Author(s):  
Liu Jin ◽  
Shuai Zhang ◽  
Dong Li ◽  
Haibin Xu ◽  
Xiuli Du ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Axial Compression ◽  
Seismic Behavior ◽  
Load Capacity ◽  
Concrete Columns ◽  
Simulation Method ◽  
Reinforced Concrete Columns ◽  
Mesoscopic Simulation ◽  
Energy Dissipation Capacity

The results of an experimental program on eight short reinforced concrete columns having different structural sizes and axial compression ratios subjected to monotonic/cyclic lateral loading were reported. A 3D mesoscopic simulation method for the analysis of mechanical properties of reinforced concrete members was established, and then it was utilized as an important supplement and extension of the traditional experimental method. Lots of numerical trials, based on the restricted experimental results and the proposed 3D mesoscopic simulation method, were carried out to sufficiently evaluate the seismic performances of short reinforced concrete columns with different structural sizes and axial compression ratios. The test results indicate that (1) the failure pattern of reinforced concrete columns can be significantly affected by the shear-span ratio; (2) increasing the axial compression ratio could improve the load capacity of the reinforced concrete column, but the deformation capacity would be restricted and the failure mode would be more brittle, consequently the energy dissipation capacity could be deteriorated; and (3) the load capacity, the displacement ductility, and the energy dissipation capacity of the short reinforced concrete columns all exhibit clear size effect, namely, the size effect could significantly affect the seismic behavior of reinforced concrete columns.

Experimental Study on Seismic Performance of RC Composite Core Walls with Steel Tube-Reinforced Concrete Columns and Concealed Steel Trusses under Eccentric Horizontal Loading

2010 ◽  
Vol 163-167 ◽  
pp. 2267-2273 ◽  
Author(s):  
Hong Ying Dong ◽  
Wan Lin Cao ◽  
Jian Wei Zhang
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Load Capacity ◽  
Concrete Columns ◽  
Steel Tube ◽  
Reinforced Concrete Columns ◽  
Deterioration Process ◽  
Combined Action ◽  
Process Energy ◽  
Steel Trusses

Two 1/6 scale core walls, including one RC core wall with steel tube-reinforced concrete columns and concealed steel trusses and one conventional RC core wall, were tested under eccentric horizontal cyclic loading. The load-capacity, ductility, hysteresis characteristics, stiffness, stiffness deterioration process, energy dissipation and damage characteristics of the two specimens were compared and discussed in this paper. It shows that the seismic performance of the RC core walls under combined action could be improved by setting the concealed steel trusses in the walls and using the steel tube-reinforced concrete columns as the boundary elements.

The behavior of reinforced concrete columns subjected to axial force and biaxial bending

2000 ◽  
Vol 22 (11) ◽  
pp. 1518-1528 ◽  
Author(s):  
Jin-Keun Kim ◽  
Sang-Soon Lee
Keyword(s):  
Reinforced Concrete ◽  
Axial Force ◽  
Concrete Columns ◽  
Biaxial Bending ◽  
Reinforced Concrete Columns

Experimental and numerical investigation on axial compression of reinforced concrete columns made from recycled coarse and fine aggregates

2020 ◽  
Author(s):  
Abdelouahab Khelil ◽  
Remi Boissière ◽  
Firas Al Mahmoud ◽  
Florian Wurtzer ◽  
Jean‐Luc Blin‐Lacroix
Keyword(s):  
Reinforced Concrete ◽  
Numerical Investigation ◽  
Axial Compression ◽  
Concrete Columns ◽  
Reinforced Concrete Columns ◽  
Fine Aggregates
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