Earth Quake Seminar Topics 2021

Earthquake engineering is the scientific field concerned with protecting society, the natural and the man-made environment from earthquakes by limiting the seismic risk to socio-economically acceptable levels. Earthquake Engineering seminar topics for geotechnical earthquake engineering students doing masters in civil engineering is given here

Steel Moment Resisting Frame

Load and Resistance Factor Design

Steel Moment Resisting Frames

Earthquake loss estimation

Prediction of earthquake losses

Seismic Risk Assessments

The risk assessment process generally involves determining the probability of various ground motions coupled with the vulnerability or damage of the building under those ground motions. The results are defined as a percent of building replacement value

insufficient shear reinforcement mode

Sliding off foundations effect

Soil liquefaction

Fluid viscous dampers (FVDs)

Metallic yielding dampers (MYDs)

Viscoelastic dampers (VEDs)

Friction dampers (FDs)

Springs-with-damper base isolator

Building elevation control

Building elevation control is a valuable source of vibration control of seismic loading. Pyramid-shaped skyscrapers continue to attract the attention of architects and engineers because such structures promise a better stability against earthquakes and winds. The elevation configuration can prevent buildings' resonant amplifications because a properly configured building disperses the sheer wave energy between a wide range of frequencies. Earthquake or wind quieting ability of the elevation configuration is provided by a specific pattern of multiple reflections and transmissions of vertically propagating waves, which are generated by breakdowns into homogeneity of story layers, and a taper. Any abrupt changes of the propagating waves velocity result in a considerable dispersion of the wave energy between a wide ranges of frequencies thus preventing the resonant displacement amplifications in the building. A tapered profile of a building is not a compulsory feature of this method of structural control. A similar resonance preventing effect can be also obtained by a proper tapering of other characteristics of a building structure, namely, its mass and stiffness. As a result, the building elevation configuration techniques permit an architectural design that may be both attractive and functional ( e.g., Pyramid).

Seismic design

Seismic design is based on authorized engineering procedures, principles and criteria meant to design or retrofit structures subject to earthquake exposure. Those criteria are only consistent with the contemporary state of the knowledge about earthquake engineering structures. Therefore, a building design which exactly follows seismic code regulations does not guarantee safety against collapse or serious damage. The price of poor seismic design may be enormous. Nevertheless, seismic design has always been a trial and error process whether it was based on physical laws or on empirical knowledge of the structural performance of different shapes and materials.

Seismic Data and Seismic Design Criteria

Seismic Characteristics of Engineered Systems

Seismic Forces

Seismic Analysis Procedures

Seismic Detailing and Construction Quality Control

Earthquake resistant construction

Destabilizing action of an earthquake

Earthquake induced Landslides

seismic performance of adobe construction

Seismic reinforcement

Limestone and sandstone structures

Timber framing

Timber framing dates back thousands of years, and has been used in many parts of the world during various periods such as ancient Japan, Europe and medieval England in localities where timber was in good supply and building stone and the skills to work it were not.The use of timber framing in buildings provides their complete skeletal framing which offers some structural benefits as the timber frame, if properly engineered, lends itself to better seismic survivability

Reinforced masonry structures

Reinforced concrete structures

Prestressed concrete

Prestressed concrete is a kind of reinforced concrete used for overcoming concrete's natural weakness in tension. It can be applied to beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that offsets the tensile stress that the concrete compression member would, otherwise, experience due to a bending load. To prevent catastrophic collapse in response earth shaking (in the interest of life safety), a traditional reinforced concrete frame should have ductile joints. Depending upon the methods used and the imposed seismic forces, such buildings may be immediately usable, require extensive repair, or may have to be demolished.

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