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Seattle Earthquake - Steel Structures

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>From The Most Recent electronic AISC Newsletter:

While {Washington Earthquake} damage assessment is still ongoing, some
inspection of various
building types and structural systems is occurring. The American Institute
of Steel Construction, Inc. (AISC) is acting as a clearinghouse for
reports of building damage to structural steel-framed buildings.

If you are aware of any damage or of any scheduled inspections to
buildings, please contact Nestor Iwankiw, P.E., AISC's Vice President of
Engineering & Research at 312-670-5415 (email iwankiw(--nospam--at)

For any inspections of buildings framed in structural steel, AISC
recommends the use of the Federal Emergency Management Agency (FEMA)
documents developed after the 1994 Northridge Earthquake.  Specifically,
FEMA 352 Recommended Post-earthquake Evaluation and Repair Criteria for
Welded Steel Moment-Frame Buildings should be consulted.

In addition, the following documents may also prove useful:

- 1997 AISC Seismic Provisions for Structural Steel Buildings with 2000
Supplement No. 2 (available for free download at;
- AISC Design Guide #12 Modification of Existing Steel Welded Moment Frame
Connections for Seismic Resistance (Gross, et al) (available for purchase
- FEMA 350 Recommended Seismic Design Criteria For New Steel Moment-Frame
- FEMA 351 Recommended Seismic Evaluation and Upgrade Criteria for
Existing Welded Steel Moment-Frame Buildings; and
- FEMA 353 Recommended Specifications and Quality Assurance Guidelines for
Steel Moment-Frame Construction for Seismic Applications.

FEMA 350-353 are currently available from the FEMA Distribution Center
(800-480-2520) and the ASIC Design Guide #12 Modification of Existing
Steel Welded Moment Frame Connections for Seismic Resistance is available
at 800-644-2400.

Additional articles, FAQs and links regarding seismic design are available
on AISC's web site at

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