Earthquake Resistant Design of Buildings

Catalog description

Introductory engineering seismology, basic principles of structural dynamics, application of earthquake design provisions of model building codes to design of buildings. A E (C E) 538 Earthquake Resistant Design of Buildings (3) The main objective of this course is to familiarize students with basic principles of design of buildings to resist earthquake effects. Since building design is governed by the Building Code, currently, International Building Code that adopts American Society of Civil Engineers (ASCE) document ASCE-7 for load determination, the seismic provisions of ASCE-7 will be used as the basis for design. The course starts by introducing earthquake phenomenon and engineering seismology concepts. The basic principles of structural dynamics are then covered for single degree of freedom systems starting from free vibration to random loading so that students learn how a ground acceleration time-history subjected to the base of a building can be converted to a time varying effective seismic load on the mass. After introduction of response spectrum, introductory material on multi-degree of freedom systems is introduced so that students can determine natural frequencies and mode shapes for multi-story buildings and perform modal superposition analysis to determine displacement and force responses. Next, the principles of earthquake resisting design related to energy dissipation, ductility, over-strength, and redundancy followed by seismic provision of the building code are discussed. The main design principles related to the two main materials for building construction consisting of reinforced concrete and structural steel are next discussed. The focus will be to illustrate how lateral load resisting systems such as shear walls, moment resisting frames, or braced frames made with such materials as appropriate are designed to resist earthquake effects based on respective material code provisions, that is, American Concrete Institute (ACI) for concrete and American Institute of Steel Construction (AISC) for steel. The last part of the course will introduce seismic retrofit, base isolation systems and the concept of performance based design.