Structure201010.pdf

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October 2010
Bridges
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Metal Wood Framer for Revit
Metal-Wood-Framing Software Now Available for
Autodesk Revit Architecture and Structure 2011
StrucSoft Solutions’ light gauge metal and wood framing
solution automates stud design and manufacturing in
Revit BIM environment
This program is suitable for
architects, engineers, estimators and builders
Highlights:
• Template/rules driven
• Auto-detect Revit walls, doors,
windows and openings
• Stud arrangement and panelizing
• Bearing beams and bracing
• Panel joints and kickers
• Curtain wall supports
• Sheathing and panel numbering
• Shop drawings and cut lists
• MEP clash detection and opening framing
• Simpson Strong-Tie connectors
• Link to Sizer WoodWorks interface
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C O N T E N T S
F eatures
18 Arched Beauty
By Paul Gilham, P.E., S.E.
The Lower Burnett Road/South Prairie Creek Bridge, located on the Foothills Trail
near the town of Buckley, Washington, provides a link connecting a 15-mile section
to the south with a 1.8-mile section to the north. The 400-foot long by 40-foot deep
gap created by the removal of an original railroad trestle posed a major obstacle.
The solution aptly demonstrates the ability of glue-laminated timber construction to
achieve complex geometry while maintaining high aesthetic value.
8
D epartments
C olumns
7 Editorial
Is A Quantum Leap In Your Future ?
By John A. Mercer Jr. P.E.
8 Building Blocks
Applying Recycled Plastic Lumber
Technology to Short-Span Bridges
By George F. Assis, P.E.
10 Structural Forensics
Building Façade Inspection – Part 2
By Scott L. Weiland, P.E.,
Stephen L. Morgan, E.I. and
J. Trey Thomas, E.I.
12 Structural Design
Design of Expansion Joints in
Parking Structures
By Mohammad Iqbal, P.E., S.E.
16 Technology
What Can Open Source Structural
Software Do For You ?
By Arturo Montalva, P.E., Jeff Baylor,
and Klaus Wittig
23 Structural Sustainability
Sustainable Structures for the
Bridge Engineer
By Daniel Whittemore, P.E.
34 Structural Forum
Portability, Reciprocity, Comity
and You
By Barry Arnold, S.E., SECB
26 InSights
Perspectives on ASCE 41 for Seismic
Rehabilitation of Buildings
By Existing Buildings Committee,
Structural Engineers Association of
Northern California (SEAONC)
27 Spotlight
The Kingsway Pedestrian Bridge
By Paul A. Fast, P.Eng, Struct.Eng
10
o n the C over
27
The South Prairie
Creek Bridge provides
a signiicant link in
the Foothills Trail,
a trail system in
Washington which will
be more than 28 miles
long when completed.
Western Wood
Structures provided the design, supply and
installation of the complex bridge superstructure.
The use of glulam timber provides a structure that
truly complements the natural beauty of the site.
See more about this project in our feature article
“Arched Beauty” on page 18.
Photo courtesy of Lisa Bannister.
I n e very I ssue
6 Advertiser Index
28 NCSEA News
30 SEI Structural Columns
32 CASE in Point
October 2010
Bridges
Publication of any article, image, or advertisement in STRUCTURE ® magazine does not constitute endorsement
by NCSEA, CASE, SEI, C 3 Ink, or the Editorial Board. Authors, contributors, and advertisers retain sole
responsibility for the content of their submissions.
STRUCTURE magazine
5
October 2010
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