At present, the development of green building materials is imminent. Traditional wood structures show low strength and are easy to crack. Steel also prone instability. A novel rectangular-section composite beam from welded thin-walled H-shape steel/camphor pine was proposed in this work. The force deformation, section strain distribution law, damage mechanism combined were studied optimize desi...

Abstract The paper presents the concept of an innovative technological line intended for processing long linear profiles used in engineering steel and aluminium structures, which can be both hollow open section profiles. is set up with seven main sections: profile loading system, input roller conveyor, plasma arc cutting section, circular saw robot welding output conveyor packaging system. assu...

Wire arc additive manufacturing (WAAM) is a promising metal 3D printing technique in the construction industry for its ability to produce large and complex-shaped elements, with reasonable accuracy, time costs. There currently, however, lack of fundamental test data on structural performance WAAM elements. To address this, an experimental study into cross-sectional behaviour tubular beams has b...

Abstract Hollow section braces are often adopted in steel frame structures because of their superior performance. To connect tubular members with framing elements, field-bolted connections the slotted-in single splice plate and gusset majorly used ease construction. However, eccentricity between axes reduces compressive strength brace induces local connection failures under seismic excitations....

An attempt has been made to use this composite structural member as a column with a modification of flutes on the steel tube which enhances the aesthetics and development area of sheet by which the moment of inertia gets increased by about 17 to 40 % for rectangular flutes and 9 to 23 % for triangular flutes. Confining concrete by providing triangular and rectangular shape fluted steel tube has...

The problem of generation of triangle-tiled pictures that are two-dimensional figures tiled by isosceles right triangles of the same size, is investigated. Grammars called context-free triangle-tiled picture grammars (CFttPG) that generate such figures making use of context-free type rules, are proposed. The special case that all rules of such a grammar are regular, is studied. In the framework...

We describe an optimization tool for a multistage production process for rectangular steel plates. The problem we solve yields a production design (or plan) for rectangular plate products in a steel plant, i.e., a detailed list of operational steps and intermediate products on the way to producing steel plates. We decompose this problem into subproblems that correspond to the production stages,...