Cold-formed steel members are usually used as purlins in buildings to support roof cladding and thus they can be treated beams restrained fully or partially the lateral torsional directions. However, when these subjected wind suction loading, their free flange is compression, which may cause web–flange distortional buckling (WFDB). This paper presents an analytical study on WFDB of zed-section ...

Abstract This paper presents numerical simulations on the behavior of thin‐walled steel tubular bridge piers box sections under cyclic lateral loading in presence constant axial compression loads, using three‐dimensional finite element analysis adopted commercial computer software ABAQUS. The and experimental results are compared to show how material models, such as elastic perfectly plastic (E...

This paper reports the experimental investigation conducted on unwrapped and latex wrapped cold-formed steel column. Various column cross-sections are subjected to repeated lateral loading till failure. All columns were observed fail in local buckling. The cross-section dimension, provision of interior exterior lip, wrapping influenced load Increasing web length a section from 100 200 mm increa...

This paper investigates the relationship between mechanical behaviors and shape of corrugated fiberboard by means of buckling analysis, which is done by FEM (Finite Element Method). Firstly, after analyzing the structure of corrugated fiberboard a single-wall corrugated fiberboard model was built. The buckling load was measured in the ideal condition by linear buckling analysis (eigenvalue buck...

The radial stretching of a hollow thin membrane without compressive strength is considered within the framework of the small strain tension field theory. For each type of the uniform boundary conditions, the loading plane is partitioned into the domains of biaxial tension, tension field and buckling. The extent of these domains critically depends on the value of the Poisson’s coefficient and on...

the plate girders are used in important structural systems. the earlier design of plate girders was restricted to their critical bukling capacity. experimental and theoretical studies show the plate girders with vertical stiffners can carry load over than their critical buckling loads and then in modern design codes is permitted to use post- buckling capacity of them. in this case the out- of- ...

Failure in cold-formed steel beams is generally initiated by one of three instabilities: local, distortional, or lateral-torsional buckling. For cold-formed steel joists, purlins, or girts, when the compression flange is not restrained by attachment to sheathing or paneling, distortional buckling may be the predominant failure mode. Experimental results on cold-formed steel beams with unrestrai...