Sponsored by Virginia Tech Continuing and Professional Education

May 21-22, 2014

The Inn at Virginia Tech and Skelton Conference CenterBlacksburg, Virginia

Announcing a Virginia Tech short course on…

Advanced Design Topics in Wood Construction Engineering

www.cpe.vt.edu/sdww

Who Should AttendThe primary audiences for this course are registered design professionals, structural engineers, wood truss engineers, wood truss designers, post-frame building designers, code plan review and inspection professionals, and general contractors that want to expand their general knowledge of wood as a building material and their knowledge of building design beyond the introductory level. Manufacturers and suppliers of building products used in the construction of wood-frame buildings may also benefit by the in-depth discussion of wood material properties and wood building design issues that impact the performance of wood buildings in-service.

Overview of Course ContentThis course offers a buffet of topics often faced by wood design professionals, yet background data and references on the topics are not readily accessible. The first unit on Decay Processes, Design for Durability, and Insects that Attack Wood will address the science of wood decay, insects that attack wood, and design ideas to improve building durability.

In Wood Shrinkage Issues in Construction, we will review published data on the relationship between shrinkage and moisture content (MC), how environmental humidity and temperature dictate the equilibrium moisture content of lumber, and demonstrate through examples how changes in MC can impact dimensional stability in wood framing and connections.

Structural lumber used in North America can be graded visually or by machine (MSR or MEL). In Lumber Grading Methods and Design Values, we will review the methods used to mechanically or visually grade lumber, how allowable stresses are derived from test data, safety factors for lumber, and how the outcomes of grading method affect the manufactured product. Updated lumber design values by the grading agencies will be summarized.

In Design of Built-Up Beams and Columns, we will present for designer consideration an adjustment factor for Emin to account for the reduction in variability of E when multiple plies of dimension lumber are constrained to deflect equally by proper design, detail, and installation. Example problems will demonstrate design efficiencies that can be gained.

In Glulam Beam Design, we will review how to size and specify glulam beams and present design examples for laterally supported and unsupported glulam beams with design checks for bending, shear and deflection (short- and long-term).

In Evaluating Structural Capacity of Fire-Exposed Timber Beams and Columns, a general procedure and rational calculation methodology for determining the residual structural capacity of fire-exposed timber beams and columns will be presented.

In Multiple-Bolt Wood Connection Design, participants will review a model code requirement through the NDS to check “local stresses” in multiple-bolt connections. Design methods offered in the NDS for calculating the additional failure modes for multiple-bolt connections due to “local stresses” will be demonstrated by calculations.

In Wood Truss Design Responsibilities, we will discuss the responsibilities of the Owner, Registered Design Professional or Building Designer, Contractor, Truss Design Engineer or Truss Designer, and Truss Manufacturer when metal-plate-connected wood trusses are utilized in a project. ANSI/TPI 1-2007 defines the various responsibilities for the parties involved in the use of MPC wood trusses. ANSI/TPI 1-2007 is referenced for MPC wood trusses in the 2009/12 IBC.

In Basics of Diaphragm and Shear Wall Design, we will present load path concepts and basic design methodologies for resisting lateral loads due to wind and seismic events. Examples will illustrate design of framing, panels, chords and tie-down anchorage. We will illustrate how to apply appropriate adjustment factors for Allowable Stress Design (ASD) and Load and Resistance Factor Design (LRFD) and discuss sources of design values for diaphragms/shear walls.

Post-frame buildings differ somewhat from typical light-frame wood construction with respect to framing member size and spacing, and often corrugated steel panels are used to sheath the buildings. In Post-Frame Building Design and Diaphragm/ Shear Wall Tests, we present a streamlined design method that follows the procedures used in light-frame wood diaphragms and shear walls. An example problem will be presented showing how to design the diaphragm, shear wall, sidewall posts and post embedment depth.

The unit on Creep of Solid-Sawn Joists, I-Joists, and MPC Floor Trusses will address the literature and recognized standards on methods to evaluate long term deflection of the three member types caused by long-term loads.

In Design Considerations for Preventing Flat Roof Failures from Gravity Loads or Sustained Live Loads, we will discuss the well-known problem area of the collapse of “flat-roofs” due to ponding and snow/ice accumulation. A rational design method for accounting for long-term deflection of MPC parallel-chord roof trusses will be demonstrated.

In Wood Truss Repair Design Techniques, the instructor will review his general approach to repair of roof and floor trusses to include documentation of the damage, data required for the repair, materials for the repairs, typical design values for the selected materials, and specifications for the materials to be used. A sample of two truss repair drawings will be discussed.

In Permanent Truss Bracing Design Basics, procedures for calculating required lateral bracing forces in webs and chords without sheathing (as for piggyback trusses and valley sets) will be presented.

While required by the 2009 IRC, the design of residential decks to resist lateral loads (wind, seismic, and occupant) had not been explored, documented, and published prior to 2009. In Lateral Design of Decks, we will illustrate how to apply the provisions of the ASCE 7 load standard to calculate wind and seismic loads on decks. The ASCE 7 load standard does not give guidance on how to determine lateral loads on decks caused by occupants. In part two of the unit, the results of laboratory tests of full-size decks at Washington State University will be presented. The subject decks were loaded by occupants under a variety of dynamic loading cases. Data and video of the testing will be shown.

Course Materials and CEU CreditThe registration fee includes a notebook containing course materials, lunch on both days, continuous refreshment service and a certificate for 1.5 CEUs (15 contact hours).

Course Outline and ScheduleWednesday, May 21, 20147:00 a.m. – 8:00 a.m. On-site check-in and registration8:00 a.m. – 9:30 a.m. Decay processes, design for durability, and insects

that attack wood9:30 a.m. – 10:15 a.m. Wood shrinkage issues in construction10:15 a.m. – 10:30 a.m. Break10:30 a.m. – 11:15 a.m. Lumber grading methods and design values11:15 a.m. – 12:00 p.m. Design of built-up beams and columns12:00 p.m. – 1:00 p.m. Lunch1:00 p.m. – 2:00 p.m. Glulam beam design2:00 p.m. – 2:45 p.m. Structural capacity of fire-exposed timber beams and

columns2:45 p.m. – 3:00 p.m. Break3:00 p.m. – 4:00 p.m. Multiple-bolt wood connection design4:00 p.m. – 5:00 p.m. Wood truss design responsibilities

Thursday, May 22, 20148:00 a.m. – 9:00 a.m. Basics of diaphragm and shear wall design9:00 a.m. – 10:00 a.m. Post-frame building design and diaphragm/shear wall

tests10:00 a.m. – 10:15 a.m. Break10:15 a.m. – 11:00 a.m. Creep of solid-sawn joists, I-joists, and MPC floor

trusses11:00 a.m. – 12:00 p.m. Design considerations for preventing flat roof failures

from gravity or sustained live loads12:00 p.m. – 1:00 p.m. Lunch1:00 p.m. – 2:30 p.m. Wood truss repair design techniques2:30 p.m. – 3:30 p.m. Permanent truss bracing design basics3:30 p.m. – 3:45 p.m. Break3:45 p.m. – 4:45 p.m. Lateral design of decks4:45 p.m. – 5:00 p.m. Course evaluation and presentation of certificates

For More InformationFor more specific information on course content, please contact Dr. Frank Woeste at (540) 951-0469, or e-mail: fwoeste@vt.edu

Registration

Advanced Design Topics in Wood Construction EngineeringMay 21-22, 2014

Please print or type—complete a separate form for each participant.

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Registration Fee: $795 ($895 after April 21, 2014)

Register online by May 14 at: www.cpe.vt.edu/sdww/

OR return with payment by May 14 (no staples, tape, or paper clips, please) to:

Virginia TechConference Registrar – CPE702 University City Boulevard (MC 0272)Blacksburg, VA 24061

OR fax the completed form to 540-231-3306. If you prefer, telephone the credit card information at 540-231-5182.

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Lodging and Travel InformationLodgingThe Inn at Virginia Tech and Skelton Conference Center is located at 901 Prices Fork Road in Blacksburg, Virginia. The Inn is the only hotel located on the Virginia Tech campus and offers convenient surroundings and state-of-the-art technology. The world-class hotel and conference center sits on 25 lush acres where you’ll find Preston’s restaurant, featuring delicious fare and healthful selections for breakfast, lunch and dinner. The campus complex is within easy walking distance to downtown Blacksburg.

A block of lodging rooms is being held at The Inn at Virginia Tech and Skelton Conference Center until April 23, 2014. To reserve a room, please call the hotel at 540-231-8000 or toll free at 1-877-200-3360 and mention that you are with the Advanced Design Topics in Wood group. A special group rate of $127/single or double (plus tax) has been arranged. Please make your reservations early. After April 23, 2014, the room block will be dropped and the group rate is no longer guaranteed.

Travel by AutoBlacksburg is located in Southwest Virginia on U.S. Route 460, off Interstate 81. From I-81,take Exit 118 which serves all exit ramps A, B, and C. Take 118B and follow signs to Virginia Tech and 460 West. Follow U.S. 460 West Bypass to the Prices Fork/Downtown interchange (about 9 miles). Take the Downtown Exit heading east on Prices Fork Road, and then turn right at the first stop light. After the turn, The Inn at Virginia Tech and Skelton Conference Center is on the right.

Travel by AirThe Roanoke Regional Airport (ROA) serves Blacksburg, Virginia. The available airlines are: United Airlines, US Airways, Delta, and Allegiant Air. Blacksburg is located 40 miles southwest of the airport. Most rental car companies are located at the airport. Greensboro (GSO) is about two and a half hours away, and Charlotte (CLT) is about three hours away. Both of these airports offer alternative flight options.

How to RegisterOn-line registration will end on May 14, 2014. To qualify for the “early registration fee” of $795, payment must be received on, or before, April 21, 2014. Enrollment is limited to 50. Many past Virginia Tech programs have been oversubscribed, thus early registration is recommended.

•Registeronthewebat:www.cpe.vt.edu/sdww/ (secure server—credit card information required to secure space).

•Mailtheformwithcreditcardinformationorcheck(paymentrequiredtosecure your space).

• Faxthecompletedformto540-231-3306.Ifyouprefer,telephonethecreditcard information at 540-231-5182.

REFUNd and CANCELLATION POLICY: Requests for refunds will be honored when received seven calendar days prior to the program. However, another person may be substituted at any time for this program. A $75 administrative fee will be deducted for cancellations. In the unlikely event that this program is cancelled or postponed due to insufficient enrollments or unforeseen circumstances, the university will fully refund registration fees but cannot be held responsible for any other expenses, including cancellation or change charges assessed by airlines, hotels, travel agencies, or other organizations.For weather or disaster-related program cancellation or postponement information, please call 540-231-9489.

Method of Payment: (Registration will be processed when payment is received.) Check enclosed. (Make payable to: Treasurer, Virginia Tech CE)

Checks must be drawn on U.S. bank in U.S. dollars. (There will be a $50 processing fee for all returned checks.)

Credit card: MasterCard VISA AmEx (Credit Card payment may be mailed, faxed, or given to registrar over the

phone. No credit card information will be processed by voice mail or email.)

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Conference RegistrarContinuing and Professional EducationVirginia Polytechnic Institute and State University702 University City Boulevard, Mail Code 0272Blacksburg, VA 24061

Virginia Tech does not discriminate against employees, students, or applicants on the basis of age, color, disability, gender, national origin, political affiliation, race, religion, sexual orientation, genetic information, veteran status, or any other basis protected by law. Anyone having questions concerning discrimination or accessibility should contact the Office of Equity and Access. If you are a person with a disability and require any auxiliary aids, services, or other accommodations for this workshop, please discuss your accommodation needs with Shelly Jobst at 540-231-7084 by two weeks prior to the course.

VT/170/0114/4.8M/145054

About the InstructorsLecil Alexander, P.E. is a staff engineer at Universal Forest Products, Inc., located in Burlington, NC and is a licensed Professional Engineer in twenty-four states. Lecil has 35-years of experience in the design of wood trusses and other engineered wood products. During his 20-years of service at UFP, he reviewed plans and truss design drawings, consulted with the sales staff on technical issues and the proper use of our wood products to meet the needs of customers, and provided wood truss repair and

modification services for their products. During the 1999-2004 timeframe, Lecil developed and taught a two-day wood truss repair design course that was offered four times as a Continuing Education course at Virginia Tech. He was also an instructor at the Design of MPC Wood Truss Systems courses at VT in 1997 and 1998.

don Bender, P.E., Ph.d., is Professor of Civil Engineering and Director of the Composite Materials & Engineering Center at Washington State University (http://www.cmec.wsu.edu/facultypages/fac_bender.html). He has taught courses and conducted research on wood engineering for 30 years. He serves on the AWC Wood Standards Design Committee responsible for the NDS and WFCM, the American Lumber Standard Committee responsible for the PS-20 Softwood Lumber Standard, and the project committees for TPI-1 and TPI-3 wood truss standards. He holds the Weyerhaeuser

Distinguished Professorship at WSU. Details on the WSU Composite Materials & Engineering Center can be found at: www.cmec.wsu.edu

Joe Loferski, Ph.d., is professor of Department of Sustainable Biomaterials (http://sbio.vt.edu/) at Virginia Tech. Joe has international reputation and experience in the areas of performance of wood and wood composites in buildings and preservation of historic wood buildings. He has consulted on the restoration and preservation of many historic buildings in the U.S. including the Library of Congress and Washington’s Mount Vernon, and recently the preservation an Erie Canal Aqueduct. He also has experience in

diagnosing problems with wood building components including flooring, siding, and problems stemming from insects, moisture, and improper flashing details. He has taught courses on the performance of wood in buildings for more than 27 years at Virginia Tech.

Frank E. Woeste, P.E., Ph.d., is a wood construction and engineering consultant. Frank conducted wood engineering research and taught wood design courses throughout his 26-year tenure at Virginia Tech. He is currently Professor Emeritus at Virginia Tech, Adjunct Professor, Depar tment of Sustainable Biomaterials, Virginia Tech, and Adjunct Professor, Composite Materials & Engineering Center, Washington State University. Frank has been involved in MPC wood truss research or continuing education since 1972. Since 2002,

he and Dr. Joe Loferski have focused on residential deck research in an effort to improve deck safety nationwide. A list of his publications can be viewed at: http://sbio.vt.edu/resumes/woeste1101.pdf