For an earthquake of magnitude M = 7.0 and depth 25 km, calculate the peak groundacceleration at a site 50 km from the epicentre using the attenuation relationships forEurope, Japan and western North America (randomly oriented horizontal components).The fault mechanism is normal and the seismic waves travel through a thick layer of rock(v =780 m/s). Compare the results with the prediction of the worldwide attenuation rela-tionship. Plot the curve of the above attenuation relationships for M = 7.0 and commenton the plots.

Answered: Image /qna-images/answer/b55fc363-74dc-4c3c-ba25-3b55b087f4b4.jpg

Answered: (v =780 m/s). Compare the results with…

(v =780 m/s). Compare the results with the prediction of the worldwide attenuation rela- tionship. Plot the curve of the above attenuation relationships for M = 7.0 and comment on the plots.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.

Question

For an earthquake of magnitude M = 7.0 and depth 25 km, calculate the peak ground
acceleration at a site 50 km from the epicentre using the attenuation relationships for
Europe, Japan and western North America (randomly oriented horizontal components).
The fault mechanism is normal and the seismic waves travel through a thick layer of rock
(v =780 m/s). Compare the results with the prediction of the worldwide attenuation rela-
tionship. Plot the curve of the above attenuation relationships for M = 7.0 and comment
on the plots.

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