This is Part II of a two part paper dealing with the current state of knowledge of the fire-safe structural design and construction of unbonded post-tensioned (UPT) flat plate concrete structures. Part I provided detailed results of nineteen transient high temperature stress relaxation tests on restrained UPT tendons of realistic length and parabolic longitudinal profiles. Experimentation ident...

To fully recognize the load-resisting mechanisms of post-tensioned concrete (PC) structures with realistic boundary conditions against disproportionate collapse, four beam-column subassemblies were extracted from a prototype building and side columns joints reproduced to reflect actual condition. The parametric analysis was conducted, including location removed column (middle or penultimate) st...

One of the fundamental attributes a liquid chromatography column is its stability when exposed to acidic and basic mobile phases. However, there have been relatively few reports date on hydrophilic interaction (HILIC) columns. Here, we report results evaluations carried out for HILIC columns packed with ethylene-bridged hybrid or silica particles using accelerated conditions, employing 100% aqu...

An established aspect of force transmission in quasistatic deformation of granular media is the existence of a dual network of strongly versus weakly loaded particles. Despite significant interest, the regulation of strong and weak forces through the contact network remains poorly understood. We examine this aspect of force transmission using data on microstructural fabric from: (I) three-dimen...

The study presents the performance of flexural strengthening concrete members exposed to partially unbonded prestressing with a particular emphasis on amount (0, 14.2, and 28.5%) cut strands-symmetrical asymmetrical damage. In addition examining influence strands remaining capacity post-tensioned effectiveness carbon fiber reinforced polymer laminates restoration, investigated results rectangul...

The tendon stress in bonded prestressed concrete (BPC) beams is section-dependent while it member-dependent unbonded (UPC) beams, leading to marked difference between these two structural systems. However, little work has addressed the bond effect of steel tendons. This research presents comparative investigations BPC and UPC with various prestress levels. A numerical model experimentally valid...