This report presents a study of a recently proposed low-cost hinge for deployable spacecraft appendages. The hinge consists of one or more pairs of steel carpenter tapes (tape springs) connected to a rolling hinge made from plastic " wheels " connected by steel cables (Rolamite). This hinge is known as Tape-Spring Rolamite (TSR) hinge. The report includes: a brief review of the relevant backgro...

The implementation of strong column-weak beam concept in reinforced concrete (RC) moment-resisting frames results the formation plastic hinges at ends, which could lead to strain penetration longitudinal reinforcement into beam-column joint (BCJ) cores. This causes high shear forces inside cores, bonding deterioration and consequently jeopardizes seismic behaviour BCJs. Plastic hinge relocation...

Progressive collapse assessment of a reinforced concrete (RC) building designed only for gravity loads and lacking dedicated lateral load resisting system was carried out using the alternate path (ALP) method finite element (FEM) numerical model created in software SAP2000. Plastic hinge capacity members evaluated considering flexure (M), axial force (N) shear (V) interaction validated procedur...

This paper presents a procedure for rehabilitating plastic hinges with damaged/fractured weldable longitudinal rebars in severely damaged reinforced concrete (RC) bridge columns and possible improvements regarding connection protection hinge development. Damaged/fractured are replaced new rebar segments, the basis of this approach involves connecting intermediate machined parts to original by w...