Abstract A fast beam‐steering capability has been demonstrated using an array of high‐gain corrugated substrate integrated waveguide (CSIW) slot antennas coupled with a bespoke dielectric lens. The proposed system prototype simulated, fabricated, and measured. is shown to have full 360° beam‐steer in azimuth plane angular sensitivity 9°, half power beamwidth (HPBW) 18° gain < 20.5 dBi at n25...

This is the second of two papers describing a procedure for the three-dimensional nonlinear time-history analysis of steelframed buildings. An overview of the procedure and the theory for the panel zone element and the plastic hinge beam element are presented in part I. In this paper, the theory for an efficient new element for modeling beams and columns in steel frames called the elastofiber e...

According to the different construction forms of PBL shear connectors in steel-concrete composite beam and steel-concrete joint section, eight finite element models in two groups of the two construction forms are conducted to study different mechanical properties of PBL shear connectors. Following conclusions can be drawn from the finite element method calculation results. The load-slip curve, ...

To optimize the segment storage and hoisting plan of precast segmental composite box girders with corrugated steel web bridges, China’s first girder bridge webs is taken as background. The difference between traditional concrete proven by numerical simulation. stress deformation characteristics during are analysed, reasonable control measures proposed. data suggested that compared ordinary gird...

Abstract A three-dimensional model of intense bunched beams is developed for cylindrical and corrugated conducting pipes. Updated comparisons between the current limits derived from this model and experimental data from PPM focusing klystrons are presented. An electrostatic Green’s function is formulated for azimuthally symmetric slowwave structures. Analytical and numerical results are present...

Abstract In the present paper, design of a steel warehouse structure was investigated. After establishing base sections for beams and columns through ultimate resistance buckling strength, an optimization procedure applied to beam-to-column connection. Three types connections were studied: bolted connection with end plate, welded web flange angles. The detailed analysis components performed hel...