The Yale art historian George Hersey showed us the columns in Figure 1 and asked us whether the ideas of symmetry breaking could be used to help classify architectural columns. Provoked by this question and the intriguing columns in that figure, we attempted to answer Hersey in the following way. We view a column as a deformed cylinder and column symmetries as the subgroup of the symmetries of ...

The experimental study presented in this paper aimed to examine the performance of cold-formed steel built-up section beam-columns experiencing non-uniform bending. test program was performed on open and closed sections that were manufactured from grades G500 G550 zinc-coated sheets. specimens assembled by connecting two identical channels with discrete connectors along longitudinal direction. ...

Carbon nanotubes (CNTs) possess unique mechanical, physical, electrical and absorbability properties coupled with their nanometer dimensional scale that renders them extremely valuable for applications in many fields including nanotechnology and chromatographic separation. The aim of this review is to provide an updated overview about the applications of CNTs in chiral and achiral separations o...

The use of light-gauge steel framed (LSF) wall systems in low- and mid-rise buildings has increased due to the fast clean construction robust structural performance. Cold-formed studs used as primary load-bearing component LSF walls are often subjected combined axial compression bending actions caused by loading eccentricity. Research on effects eccentricity capacity been limited while currentl...

In modern offshore installations, thin walled columns are used for energy absorption in accident situation. When this advanced offshore shock absorber is subjected to axial compressive load, plastic hinges are developed on the sides of column and the column crushes with repeatable patterns. It can absorb considerable impact energy due to large and continuous plastic deformation. This paper deve...