The material reduction factor of rectangular hollow section (RHS) joints in a new version Eurocode 3 part 1–8 is validate for steel with the nominal yield strength up to 700 MPa. In this paper, finite element simulations gap K-joints are conducted investigate effects properties, size joint, brace chord width ratio and welds type on secondary bending stresses resistance. governing failure mode c...

Hollow section members are popular elements in steel constructions, especially when they mainly loaded by normal forces, like simply supported columns or truss members. The individual hollow can be combined bolted endplate connections. If the bolts arranged at all four sides of rectangular section, design rules for T-stub model from widely used Eurocode EN 1993–1-8 cannot applied due to missing...

Near-fi eld enhanced bifunctional plasmonic-magnetic (PM) nanostructures consisting of silica nanotubes with embedded solid nanomagnets and uniformly dual-surface-coated plasmonic Ag nanoparticles (NPs) are rationally synthesized. The solid embedded sections of nanotubes provide single-molecule sensitivity with an enhancement factor up to 7.2 × 10 9 for surfaceenhanced Raman scattering (SERS). ...