Abstract This paper presents a study of compressed thin-walled composite columns with an open cross-section. The tested specimens top-hat cross-section were made CFRP material. Two arrangements layers [0/-45/45/90]s and [90/0/90/0]s compared. focuses on the buckling phenomenon determination critical loads structure. It includes both numerical analyses using finite element method (FEM) validatio...

This paper presents the results of an experimental study into the behavior of concrete-filled steel tube columns confined by fiber-reinforced polymer (FRP). Eleven columns were tested to investigate the effects of the FRP layer number, the thickness of the steel tube and concrete strength on their load capacity and axial deformation capacity. The experimental results indicated that the FRP wrap...

Numerical homogenization is an excellent tool for the quick simplification of complex structures with a model that much simpler and, at same time, accurately reflects mechanical behavior original model. Corrugated cardboard modeling, all geometrical nuances preserved, complicated and time-consuming process. The transfer full 3D corrugated board composed two flat layers middle layer to one only,...

Metal thin-walled members have been widely used in building industry. Usually they are utilized as purlins, girts or ceiling beams. Due to slenderness of thin-walled cross-sections these structural members are prone to stability problems (e.g. flexural buckling, lateral torsional buckling). If buckling is not constructionally prevented their resistance is limited by buckling strength. In practi...

The molded polystyrene wallboard with steel skeleton is composed of cold-formed thin-walled skeleton, flame-retardant particles a special adhesive. lattice columns battens were tested under axial compression and eccentric compression. results show that it reasonable to calculate the ultimate vertical bearing capacity specimen by comparing experimental theoretical calculation results. It found t...

ACT does not suggest any regulations for columns under torsion. However, by all means, the number of such columns used in steel and concrete structures is abundant. In this paper, using the results of laboratory tests on 35 square and rectangular columns with intermediate slender ratios, relations for determination of torsional strengths of reinforced concrete under axial compression have been ...

In this paper, the stress-related damping ratio formula of box girder with corrugated steel webs is introduced. Using response spectrum method, an iterative algorithm is proposed to calculate the seismic response and the stressrelated damping ratio under different seismic intensities. Based on a simply supported composite box girder bridge with corrugated steel webs, the stress-related damping ...

This paper presents the results of finite-element simulations leading to development a design method using direct strength (DSM) for transversely loaded thin-walled steel beams prone local and distortional buckling failures at elevated temperatures. The systematic extensive numerical parametric study covers different dimensions sections, temperature distributions in cross-section, grades load r...