Older Buildings What You Need to Know and Understand Utah Seismic Safety Commission Barry H. Welliver, S.E.
Older Buildings What You Need to Know and Understand Utah Seismic Safety Commission Barry H. Welliver, S.E.
Dec 18, 2015
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Older BuildingsWhat You Need to Know and Understand
Utah Seismic Safety Commission
Barry H. Welliver, S.E.
Utah Seism
ic Safety Com
mission
Outline Agenda
• Utah Seismic Safety Commission• Existing Buildings • Why You Should Care about
Unreinforced Masonry Bldgs.• What’s Being Done Now• What Can/Should Be Done
Utah Seism
ic Safety Com
mission
Utah Seismic Safety Commission
• Created in 1994 as a state advisory commission
• Comprised of 15 members– UGS, OES, U of U Seismograph, ULCT, DFCM, UDOT, State Planning
Coordinator, AIA, SEAU, ASCE, House Rep., Senate, Dept. Insurance, ACP,
APWA. Ex Officio members: FEMA Region 8; USGS
• Review earthquake hazards/risks
• Prepare mitigation recommendations
• Prioritize recommendations
• Information resource
• Prepare strategic plan
• Periodically update strategic plan
Utah Seism
ic Safety Com
mission
Existing Buildings
• Structural Engineers Viewpoint– Current Codes vs. Existing Construction
– Bldg. Types and Performance
– What we know about bldg. performance in EQ’s
• Historical Perspective in Utah
• Why are URM’s a concern in Utah– Not a bldg type allowed for current construction
– Performance history well documented
– Not “tested” by earthquake
Utah Seism
ic Safety Com
mission
Why You Should Care About URM’s
Utah Seism
ic safety Com
mission
Utah Seism
ic Safety Com
mission
Because Pat Bagley Thinks So!
Utah Seism
ic Safety Com
mission
What You Should Know About URM’s
Utah Seism
ic Safety Com
mission
Utah Seism
ic Safety Com
mission
Utah Seism
ic Safety Com
mission
Utah Seism
ic Safety Com
mission
HAZUS
Utah Seism
ic Safety Com
mission
What’s Being Done Now
• Utah Uniform Bldg. Standard Act Rules Amendments
– 3403.5 Parapets and other appendages
– 1614.2 Change in Occupancy
• Local Building Official Enforcement
• Structural Engineers Recommendations
• Preparation for adoption (allowance) of the International Existing Building Code
Utah Seism
ic Safety Com
mission
What
Can/Should
Be Done
Utah Seism
ic Safety Com
mission
Thank You
Questions
http://cem.utah.gov/ussc/ Utah State Capitol Seismic Retrofit
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