Over the past two decades, precast concrete members have been utilized in seismically resilient structures. In developing these structures, different techniques used for connecting to foundation. building construction, unbonded post-tensioning (PT) tendons can anchor a wall foundation, resulting so-called rocking system. The system develops dry connection with foundation and provides moment res...

The fundamental theme of this chapter is that structure and function are intimately related. Abnormal symptoms and prolapse are caused by connective tissue laxity in the vagina or its suspensory ligaments – Integral Theory (Fig. 2.1). Other than pelvic pain, in some way, all the symptoms concern closure (continence) or opening (emptying) by the muscle forces (arrows). Tissue tension is critical...

Results and Conclusion: The analysis results show that the cracking deflection of the prestressed, concrete beams increases with the increase in the porosity of the grouting material of the beams under different load forms. By contrast, under the same porosity grouting material, the cracking deflection of the symmetrical loads is larger than that of the uniform and concentrated loads. As the po...

In this preliminary study, the complexity of the corrosion phenomenon of post-tensioning strands in grouted anchorage assemblies was examined and both physicochemical and electrochemical key technical issues were identified. Measurements of oxygen reduction efficiency in high pH electrolytes were conducted to obtain polarization parameters to be used in modeling. The time evolution of electrica...

obtaining temperature distribution data of slabs under rolling is essential as the mechanical and metallurgical properties of the metal under this process vary with temperature. using the control volume method, a mathematical model is employed in this study to predict slab temperature in the hot roll process at mobarakeh steel company. the effects of different parameters including the heat resu...

This paper introduces a novel design concept for the development of efficient, sustainable Rocking-Wall Moment Frames (RWMFs) under seismic conditions. The proposed concepts lead to a novel structural configuration with provisions for Collapse Prevention (CP), Self-Centering (SC), reparability, performance control (PC), damage reduction, and energy based seismic analysis. It introduces the meri...