Flexural Buckling of Steel Angles: Experimental Investigation

Finite element study of steel single angle beam–columns

“…Initial imperfections were considered by assuming the initial geometry in the form of a half sine-wave applied over the entire length of the specimen about its minor principal axis. The amplitude of the imperfection at the mid-height of the angle, w o was taken as L/1500, which is in line with experimental measurements conducted by Adluri and Madugula [5] and Hui [12] on single angles with various cross-sections. They showed that L/1500 is a reasonable assumption for maximum amplitude of the imperfection at mid-height of angles.…”

“…Although considerable experimental results have been reported on the capacity of single angles attached to structural tee sections which were in turn subjected to axial compression, they were not included since the bending of the angle was restrained about the geometrical axis of the angle. The test results used in the verification process included results of 36 concentrically loaded angles [15,5], 89 eccentrically loaded angles [15][16][17]12], and 6 angles under flexure only [18]. All angles included in the verification study were tested as simply supported on both ends and were not retrained to bend with respect to any axis.…”

“…Some research has been conducted by others to evaluate the performance of AISC Specification 2005. Based on a comparison study of 71 test results, Adluri and Madugula [4,5] pointed out that these interaction equations are highly conservative. Temple and Sakla [6] reported experimental capacities two to three times the values suggested by AISC Specification 2005.…”

Neural network modeling of the load-carrying capacity of eccentrically-loaded single-angle struts

“…This resulted in a reduced database of 125 test results compiled from five different sources. The entries of the reduced database were taken from the experimental studies reported by: (i) Bathon et al [17]; (ii) Wakabayashi and Nonaka [18]; (iii) Mueller and Erzurumlu [19]; (iv) Ishida [20]; and (v) Adluri and Madugula [21]. A brief description of each of the five experimental studies is given below.…”

Experimentally Assisted Modelling of the Behaviour of Steel Angle Brace

“…[1], Temple and Sakala [2], Elgaaly and Dawids [3], Alduri and Magudula [4], and Chan and Cho [5], among others. Ziemian [6] reviewed both experimental and analytical research work as well as summarized practical design concepts.…”