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Draft Guidelines for Quality Control Testing of Elastomeric Seismic Isolation Systems.


pdf icon Draft Guidelines for Quality Control Testing of Elastomeric Seismic Isolation Systems. (1223 K)
Shenton, H. W., III

NISTIR 5345; 33 p. February 1994.

Available from:

National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161.
Telephone: 1-800-553-6847 or 703-605-6000;
Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847;
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Order number: PB94-161734

Keywords:

quality control; base isolation; building technology; elastomeric; experiments; seismic isolation; standards; tests

Abstract:

Seismic isolation systems designed according to the 1991 "Uniform Building Code", or the 1991 AASHTO "Guide Specification for Seismic Isolation Design" are required to undergo a series of prototype and quality control tests before being installed in the structure. At the present time standards do not exist for conducting these tests and results are subject to unknown variability. The document represents the initiation of the process to develop standards for quality control testing of seismic isolation systems built in the U.S. The guidelines are devoted specifically to quality control testing of elastomeric systems. The guidelines address material and component tests to be conducted during production, and tests on completed isolation units. Nine production tests are specified in the guidelines. Three completed isolation unit tests are outlined: sustained compression, compression stiffness, and effective stiffness and energy dissipation. Complete details of the test set-up, test procedure, data acquisition, analysis and reporting of results are given in the guidelines. Performance criteria are established for all tests, systems that do not meet these criteria may not perform satisfactorily in service and should be set aside for disposition by the engineer of record.