Necessity Of Seismic Design Of Retaining Wall
One of the most complex problems of engineering is seismic design of retaining wall. It is a part of earthquake engineering as well. Applying differential calculus and theory of statics assumptions can be considered with a view to make obscure issue solvable.
To determine the requirement of the seismic design of retaining wall, a designer’s decision is very crucial. The code and standard that he/she follows to take the decision is really essential.
Retaining walls are not involved consequently does not risk life safety but for retaining walls that sustain buildings.
Nevertheless, International Building Code 2009 at section 1613 affirmed that every structure, and segment thereof, comprising nonstructural elements that are everlastingly adjacent to structures and their supports and attachments shall be planned and constructed to resist the impacts of earthquake motions according to ASCE 7. This observably impose the design all structures for earthquake loads.
Finally, it is advised that the designer check applicable Codes of the state in which specific seismic requirements are provided.
In the long run, it is advisable for the designer to check applicable codes of the state in which distinct seismic requirements are supplied.
Mononobe-Okabe Analysis of Earth Pressure
Generally Mononobe-Okabe equation is the alteration of coulomb equation and it judges seismic forces. The latter formula used to work out lateral earth pressure works on retaining walls but it cannot be utilized to calculate internal force which backfill soil forces on the retaining walls during earthquake.
The equation looks as follows:
To get the complete equation details, visit theconstructor.org