This paper describes the prototype design, specimen design, experimental setup, and experimental results of three light-gauge steel plate shear wall concepts. Prototype light-gauge steel plate shear walls are designed as seismic retrofits for a hospital structure in an area of high seismicity, and emphasis is placed on minimizing their impact on the existing framing. Three single-story test spe...

In recent trends the development of structural steel using cold formed section plays a vital role in main frame construction portal frames. These frames find its use economic industrial, agricultural and residential buildings due to lightweight robustness. With major claims comparison with hot rolled profiles, possesses low cost, highly versatile standard design procedures. Among various design...

Geometric imperfections such as radial imperfection, diamond shape, and local dimples could affect the buckling mode and load carrying capacity of axially compressed steel tubular columns. This paper experimentally investigates the effect of radial imperfection on the load carrying capacity of tubular columns. Test samples include 100 specimens with different values for diameter, length, thickn...

Structural fuses, easily replaceable sacrificial elements to dissipate seismic energy while preventing damage to the gravity loadresisting structural system, are proposed as part of a multicolumn accelerated bridge construction (ABC) pier concept. Different types of structural fuses are investigated to compare the effect of each on ABC bridge bents. The piers of a three span-continuous bridge p...

RF undulators, suggested long time ago, has the advantage of fast dynamic control of polarization, undulator strength and wavelength. However, RF undulators require very strong RF fields in order to produce radiation of the same order as conventional static devices. Very high power RF energy confined inside a waveguide or a cavity can provide the necessary RF fields to undulate the electron bea...

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...