In terms of soil behavior in earthquakes, building codes classify a construction site based on soil conditions. The primary property of soil that is used in this classification is
A)the stiffness/density of soil.
B)the swelling and shrinkage characteristics of soil.
C)whether the soil is native to the site.
D)the size of soil particles.
E)none of the above.

Question

Quizplus · Accepted Answer

The stiffness/density of soil is the primary property used in classification because it determines how much a structure will shake during an earthquake. If the soil is too loose, it will amplify the shaking motion, while if it is too dense, it will restrict the motion. Therefore, building codes use soil stiffness/density to determine the minimum requirements for foundation design and construction to ensure safety during earthquakes.

In Terms of Soil Behavior in Earthquakes, Building Codes Classify