Seismic Evaluation and Design of High Rise Steel Building Frames

Abstract

The widespread domain of the application of the steel structures in the technological arena has paved the way for the number of research works concerning their design, seismic behavior and stability. However, there has been a limited researches on steel structures that had been conducted so far. It is highly essential to study their design and seismic behaviour of such structural components to determine their stability and suitability during earthquake of varying intensities. This present chapter deals with the previous studies on the design and seismic analysis of structure. A study has been conducted based on the guidelines over the dowels of the epoxy grouted in earthquake strengthening projects [Wylli Jr. 1988]. Frequently, it is mandatory to strengthened existing concrete structures for improved seismic performance, either after a damaging earthquake or in preparation for a future extent. This work includes the attachment of new steel or concrete member to the pre-existing structures. The epoxy grouted dowels are found to be ideal for the above said task due to its high strength and installation ease. The short term load implementation on the dowels in the form of seismic loading concludes in the form of creep concern and as the dowels are grouted in the concrete, it is also required to impart an insulation to prevent the epoxy from the exposure heat such as fires. As per Amr S Elnashai (2000), the past earthquakes have been resulted into a specific conclusion that the internal earthquake response and resistance to the steel structures must not be taken lightly. These structures require a special attention towards their design during earthquake. As per the study, it was earlier reported that the damage due to earthquake is strictly existed on the connections of the structures; related efforts and impacts in the many countries have resulted into some of the serious modifications in their designing and quality control measure practices. The other development that affected the steel structure designing is the performance evaluation in the displacement design method and the procedures to generalize the concepts of limit state methods into the framework of performance-based design method. This present paper presents the recent innovations; research, findings related to the material used, their section, connections between members, etc. are reviewed and analyzed with the various codal provisions of the different countries including India. It also deals with the implementations of investigations related to the various steel frames along-with the bare slabs and composite slabs.