Seismic Response Modification Devices such as isolation bearings, dampers or other damping devices, and shock transmitted devices are required to be pre-qualified and accepted as approved new products before being used on Caltrans’ bridges.
Information about new product approval process can be found in California Department Transportation New Product Evaluation Guidelines .
To prequalify Seismic Response Modification Devices, the manufacturers shall include the test results according to the test plans list below in the submittal:
California Department of transportation
Division of Engineering Services
Office of Earthquake Engineering
P.O. Box 168041, MS 9-2/5I
Sacramento, California 95816-8041
Office fax 916-227-8898
email Don Lee