What shear wave velocity range is typical for a Site Class B classification?

Site Class B is characterized by site conditions that are generally considered to be stiff soil or rock that provides a relatively high shear wave velocity. This classification is critical in engineering seismology, as it influences the seismic design of structures.

The typical shear wave velocity range for Site Class B is approximately 2500 to 5000 feet per second. This range indicates that the soils have solid characteristics that can transmit seismic waves efficiently, reducing the potential for seismic amplification and providing greater stability in the face of earthquake forces.

Understanding the appropriate shear wave velocity range allows geologists and engineers to assess site response and design foundations accordingly. In California, where seismic activity is a concern, accurately classifying the site is essential for making informed decisions about civil engineering practices and infrastructure safety.