|IDS Consultants, Structural & Earthquake Engineers
Dr. Tom Moore
IDS Consultants has a reputation as the most quality and cost conscious engineering practice in the field of seismic strengthening of existing buildings, whether they be brick, stone, concrete, steel or timber buildings. Expertise is demonstrated with numerous publications and over thirty years of experience and history in many countries.
IDS Consultants is lead by Principal Structural and Earthquake Engineer, Dr. Thomas A. Moore IntCPEng 82137, BSc, BE Hons (I), PhD, MIPENZ
Moore at IDS: Phone 02102334301, (03)4727794
tom.mooreATxtra.co.nz, 101 Blanket Bay Road, Dunedin 9023
thirty-five years of professional consulting experience as an earthquake and
structural engineer includes addressing public policy issues, architectural,
social and economic implications, research, design, professional education,
disaster recovery, and risk management studies for new and existing structures
subject to seismic hazards.
include building projects for low cost multi-unit and single-family housing,
power plants, and restoration of existing buildings such as heritage brick and
stone structures located in higher-risk seismic or cyclonic zones.
consulted on the structural engineering design and construction administration
of commercial, institutional and residential buildings, infrastructure, and
industrial facilities. Tom has served in New Zealand, California, and other
U.S. states consulting on building design, structural analysis, and the
forensic investigation of damage due to earthquakes, cyclones and other
consulted on risk assessment and mitigation, considering structural, public
policy, social science, heritage, architectural, and economic impacts - to
serve public agencies such as the Federal Emergency Management Administration (FEMA,)
and the National Science Foundation (NSF,) other departments of the U.S.
government, and the California Seismic Safety Commission. He has also served
the California Insurance Industry Council and member companies for seismic and
cyclone risk assessment and post-earthquake damage assessment.
expertise in mathematical modelling of a range of structures subject to
earthquake loading, including high-rise steel and concrete buildings,
innovative structural systems such as timber high capacity shear walls, portal
frames, and exotic trusses, bridges and foundation systems.
consulted on the structural design, cost accounting, and construction
administration of low cost housing using sound rated, thermally insulated, fire
rated high capacity modular wall and floor panels — for construction in seismic
and/or cyclonic environments.
expertise in the structural design and construction administration of the
seismic retrofit of heritage buildings constructed from both brick and stone,
along with unreinforced masonry residential and commercial buildings.
experience in serving public and private sector clients such as University of
Otago, BNZ, Meridian Energy, Contact Energy, Church of England, and Department
of Corrections, which includes:
Assessment and strengthening of buildings following the Christchurch
earthquakes of 2010 and 2011.
Innovative structural design of high capacity timber shear-walls and timber
portal frames, and the Homer Tunnel Rock Shelter on the Milford road.
Structural design of cost effective timber framed buildings and structural
systems such as at ANZ Twizel and SPCA Timaru. Development of low cost housing
schemes for post- disaster and third world poverty relief application.
Concrete: Seismic assessment and provision of
strengthening schemes for multi storey buildings, University of Otago,
Southland Institute of Technology, etc., and reservoir tank at Westport
Hydroelectric Plant: Seismic assessment of structures
and equipment at Clyde, Roxburgh, and Waitaki hydroelectric power plants.
Heritage Buildings: Seismic retrofit of St. Pauls
Cathedral, Dunedin and Bodkins Building, Alexandra. Seismic evaluation of
original Dunedin Prison for the Department of Corrections.
Unreinforced Masonry: Structural assessment and
strengthening design of numerous buildings such as Les Mills Gym and SPCA
Timaru, and published a 2014 paper with NZSEE.
Steel: Structural design and design review of many
steel buildings and the seven storeys Oceania Dairy Boiler at Waitaki River
Forensic investigation regarding structural failures at 6 and 16 Hickory Place
commercial buildings in Christchurch and the Annan residence in Alexandra.
Tom has substantial project experience working for IDS
Consultants and URS in California and other states and countries, with
consulting assignments such as:
seismic loss assessment, structural strengthening measures, risk analysis and
social impacts of earthquake and hurricane disasters for FEMA, National Science
Foundation (NSF,) California Seismic Safety Commission, Applied technology
Council (ATC,) California Insurance Council, and private clients.
Assessment and strengthening of buildings following the Northridge 1991, Loma
Prieta 1989, Philippines 1989, Japan 1981, Livermore 1979 earthquakes and the
Kauai Cyclone of 1990 ... Including preparing of a report evaluating the seismic
performance of Fukushima Nuclear Plant following the 1981 Miyagi ken Oki
earthquake for Tokyo Electric, Japan, Earthquake Engineering Research Institute
(EERI) reconnaissance report following the Philippines earthquake, and an NZSEE
paper following the Livermore earthquake and numerous reports for insurance
companies following the Loma Prieta and Northridge earthquakes.
Masonry: Management and design of seismic evaluation and strengthening of
numerous 1-6 storey unreinforced masonry buildings throughout California for
various institutional and private clients at costs from $10 per square foot or
$100 per square meter.
Structural design and construction administration for numerous multi-family
residences up to five storey (plus single family homes and innovative
structures and commercial buildings) using state of the art plywood sheathed
light timber framed construction at shell costs from $35 per square foot or
$350 per square meter.
Forensic investigation and expert witness testimony regarding structural
failures and collision investigations.
Structural design of numerous commercial buildings such as the seven storeys
steel frame Chevron Research Centre at San Francisco and the Southridge
Cogeneration plant, Nebraska.
of elements of the Diablo Canyon Nuclear Plant and research on the out-of-plane
capacity of confined unreinforced masonry walls.
Concrete: Structural design and construction review
for concrete buildings and retaining walls.
has over thirty years of experience as a structural engineer in the areas of
building design, analysis, and forensic investigation of damage due to
earthquakes, and assessment of building performance in earthquake, hurricane,
and other hazards. Tom's employment history includes service to the Ministry of
Works and Development (MWD) in New Zealand, URS/Blume in San Francisco,
principal of IDS Consultants Inc., California and NZ, Opus International
Consultants, and currently at IDS Consultants, NZ.
Tom was originally
registered as a professional engineer in New Zealand in 1976 with registration
number 82137, and in California: Civil, 1979 and Structural 1982 SE2551. Tom
also has been registered as a structural engineer in Hawaii, Nevada, and
Alaska. He has published numerous
technical papers from 1972 until 2016. Tom was also the Chairperson of the
Existing Buildings Committee of EERI and SEAONC.
As principal structural
engineer for IDS Consultants Inc. in San Francisco Tom had responsibility for
all structural engineering design, strengthening of existing buildings,
post-earthquake investigations and reports, and research for NSF, EERI, SEAONC,
FEMA, and local insurance companies.
Because of his
substantial professional experience Tom is often able to conceive of core
seismic and structural issues in an innovative way and envision effective technical
and economic resolutions.
Recent projects include
"Review and Justification of Insurance Claim Regarding Earthquake Damage at
6-14 Hickory Place, Christchurch," December 2013.
"Projected Seismic Losses,"
for the Insurance Industry Council of California, 1990.
HERITAGE and UNREINFORCED MASONRY BUILDINGS
Tom's experience and
expertise with Unreinforced Masonry (URM) buildings is recognizable by his
appointment as chairperson of the Existing Buildings Committees of both EERI
and SEAONC of California, and also as structural engineering consultant to the
Dunedin City Council published as "DCC Earthquake Prone Building Policy," by
Dunedin City Council, 2011.
A major retrofit
program for URM buildings was unleashed in California during the 1980's, fueled
by research performed by John Kariotis (of ABK) et al (1986) and ABK
Consultants (1981), Los Angeles. The results from this program suggested that
the transverse (out-of-plane) URM wall inertial forces are much lower for
flexible (timber) diaphragms than for rigid (concrete) floor and roof
diaphragms. The consequence of this reduction is that many California Cities
adopted a more "liberal" Bolts-only
URM Retrofit Ordinance that recognizes a much lower risk in less seismic
regions, compared with current more expensive NZ practice.
However, there were
objections from some redevelopment orientated groups to such a liberalization
of the strengthening requirements, especially from those developers and real
estate agents with a redevelopment agenda and who envisioned demolition of most
URM's and replacement with modern buildings.
Recent research by
Professor Jason Ingham et al, based at the University of Auckland, has
advocated and advanced the "rational" approach. However, there are powerful
forces in New Zealand promoting demolition-and-redevelopment to make way for
new buildings. Some local engineers are feeding this redevelopment by adopting
the more "cautious" and expensive traditional approach to the strengthening
option. This "cautious" but expensive strategy often will involve (even in
lower risk seismic zones,) either;
installation of steel, timber, or concrete portal or braced frames, sometimes
with soldier beams (purlins) spanning between the frames spaced to suit the
particular building demand, say 5.0m to 8.0m, or;
application of reinforced Shot-Crete (or fiber reinforced polymer,) dowelled to
the URM interior face, or post-tensioning the walls. [Note that there are many instances where the
"cautious" approach is necessary and essential such as where there are rigid
diaphragms and/or storey heights are large, walls are thin, and cross walls are
cost of seismic strengthening to above 34%NBS can be thus increased from say
$60-$100 per square metre for the "liberal" method by a factor as large as four
to $200-$400 per square metre for the "cautious" approach.
PAPERS (partial list)
Twin Terrace Tunnels,
Published by M.W.D. with Dr. M.J.N. Priestley, New Zealand, 1971.
Bridge, Published by M.W.D., New Zealand, 1971.
Foundations, Published by M.W.D., New Zealand, 1971.
Connections, Published by M.W.D., New Zealand, 1971.
Finite Element Analysis
of Box Girder Bridges, Published by NZIE, 1977.
Nuclear Power Station—Effects and Implications of the June 12, 1978
Miyagi-Ken-Oki, Japan, Earthquake" by Peter I Yanev, Dr. Thomas A. Moore, and
Dr. John A. Blume. A reconnaissance report prepared by URS/John A. Blume &
Associates, January 1979.
"Seismic Performance of
Wine Tanks," Livermore, Published by EERI, 1982.
"Effects of the 1988
Philippine Earthquake," Published by EERI, 1988.
FEMA 121, 122,
Published by FEMA, 1991; Reference "Rapid Visual Screening of Buildings for
Potential Seismic Hazards: A Handbook and Supporting Documentation (FEMA 154
and 155) with Chris Arnold, AIA, 1990.
FEMA 172, NEHERP
Handbook of Techniques for the Seismic Rehabilitation of Existing Buildings
(FEMA 172) by Chris Arnold (AIA) and Dr. Thomas
Moore (SE. PE,) 1991.
"DCC Earthquake Prone
Building Policy," published by Dunedin City Council, 2011.
"The Demand versus
Capacity of the Homer West Debris Shelter, New Zealand," by Dr. Thomas Moore
and Andrew Blacker, Opus Dunedin, February 2013. Report No. 6-V8232.01-1,
Presented to Opus PIN conference, Wellington, 2013.
"Trends regarding the
Structural Enhancement of URM Buildings, including Case Studies," by Dr. Thomas
A. Moore, NZSEE, 2014, Annual Conference, 2014.
"Repairing NZ Seismic
Building Code Anomalies, including SLS," by Dr. Thomas A. Moore, Bulletin of
NZSEE, to be published 2017.