Abstract
The bearing capacity of cold-formed porous steel N90T20 rack column is studied, the eccentric positions, the spacing between holes, column thickness are discussed in details. The results obtained from this study demonstrate that when eccentric space is small, eccentric compression weaken column ultimate bearing capacity is small. From the results, it is clear that when eccentric space is large, eccentric compression can cause the column ultimate bearing capacity of plummeting. If the eccentricity is close proximity to the web, the ultimate bearing capacity declines to be smaller than the eccentric near the curling side of the column. The spacing of the holes on the column web do not present significant effect to the ultimate bearing capacity of the column. The wall thickness of column component greatly influence on the ultimate bearing capacity of the columns. This study makes contribution to the N90T20 rack design in the engineering practice and research areas.
Highlights
N90T series of Cold - formed porous steel is widely used in society, it has many advantages, like high space utilization, good accessibility, and low cost
Since the cross section is symmetric along the Y axis, choice five eccentric points Y1-Y5 along the X axis positive direction
The influence of different eccentric and web plate hole spacing on the load displacement curve are shown in Fig 8 ~ Fig 9
Summary
N90T series of Cold - formed porous steel is widely used in society, it has many advantages, like high space utilization, good accessibility, and low cost. Eccentric compression will decline the ultimate bearing capacity of the column, especially with a large eccentricity. When the column has a large eccentric compression, the column’s ultimate bearing capacity will decline a lot, it will affect the column’s stability[1,2]. The bearing capacity of the cold-formed porous steel N90T20 rack column is simulated by using the finite element simulation software ANSYS. The influence of different eccentric position, the distance between the holes and the thickness of the component on the ultimate bearing capacity is studied
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