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Crossings : newsletter of the Wood in Transportation Program PDF

10 Pages·2002·0.67 MB·English
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Historic, Archive Document Do not assume content reflects current scientific knowledge, policies, or practices. aTG365 . C76 Issue 42 Fail 2002 The National Wood in Transportation Website 'vice National Links in This issue The National Wood In Transportation Website. 1 Wood in Transportation Home ^ Frequently Asked Questions for Wood - Coordinators Preservation and Related Topics.2 i WIT Links The National Wood In HOT TOPICS RBerisduglets Doef sthigen T Cenoth mNatpioenatl iTtiimobenr .3 >*■ NTCLInrioabfatvorineoarsmrrnpeyaaod ltr itBoanrtii dogne Tftpeoixrnr oapadvnnaiivcsndepidiarno lsg trihaft yatseht s ileiuoos cnsttaeae lPcn ohrecfonce goiw crnnaoaeolmo emdad niseietdnrds i vbtoeys ►*► SPPCurtouobmidleipeccenatt ttiiI tonDinofeo nsSr imhgonap tipoinn g Cart > AIndfdoirtmioantailo nS ources of daimdevvpaeronlovcpiinnigng g wm moooaddrek rcetnrot asmt nifmpsopobr oseuirrtn teabd trpeiirroduongtdi elun idczeteteswds;i ogwarnnkosdso; . d B; y ► MPWrieocsohedigr vaant'si vBeM TPr eMaatendu al for 11th National Timber Bridge Design providing information to local community leaders, ► FAQs for Wood business officials, and engineers, the Program Preservation & Related Competition Announced ..4 UMISSOoDr gACa anFntfooirweeldns ,t S WStreVer evti ce sipntrrifimrvaaesrstyr ut orce tinumerepw rsaoybvselte e lomrecsas lo wuehcrciolene, o uwmtioliieozsidn .ag nP Adle maesrei ca's 26505 browse our website to learn more about the Phone:(304)285-1591 National Wood In Transportation Program, Conference Announcement: National Fax ,(304)285-1587 obtain information on wood transportation Email: structures, download a grant application, and Conference: Best Practices, Care, and na WU'fwrs.fed.us order or download publications from our extensive library. Repair of Covered Bridges.4 USDA ED CESA Program Coordinator Current Status of the National Wood In Transportation Program.5 Welcome Jeff Bejune. 5 www.fs.fed. a s/n a/wit/ NewPublications The National Wood In Transportation Program Website has been revamped! In addition to having a new appearance, the website now has Best Management Practices for the Use two new webpages that make it easier for visitors to find project of Preservative-Treated Wood in information and locate and order publications from the National Wood Aquatic Environments in Michigan .... 6 In Transportation (WIT) Program's library. Chestnut Oak: Qualifications & Outcomes As the number of publicat ions in the Program's library increased over forUseinaGlulamTimber Bridge.6 the years, a need arose to provide the public with the means to locate those publications of interest. To address this issue, the National Wood Insert: Wood In Transportation Website Brochure Continued Page 2 Visit our website at www.fs.fed.us/na/wit T h e National Wood I n Transportation Project Information Program Website . . . continued from page I UEAFOrtiST SERVICE !*#< • -a)t: National Wood In Transportation Program In Transportation Information Center and the West Virginia University-Division of Accounting collaborated in the development of a publication shopping cart webpage for the Project Information WIT Website. Now visitors to the website can search inis srte providers irroirnaion cnpropcts that tre Program res funcfed yr»:-=> lyw i lease* prowd* us feed tack efcoi tri-s site otter setfctungroryo-r mdvitfjal inform efiond needs through the Program’s extensive library using the criteria: category, title, author, and keyword. Ordering publications is just a matter of a few clicks of the mouse and completing a simple checkout process. Many of the publ ications are also available for download in Adobe Portable Document Format Summitry Pmgmm US©A Fores S-MTkc (.pdf) for immediate viewing. The webpage can be accessed H10O0f' JC^fd^TOAWCTKTI 'SVCAK1 CC FvmTrmj Imtnvy, nmirkrny ftrmi*, Pmjnct irrrxtnrir, mrrrrlmr rrf Phonc.(30'1)C37 1001 through the WIT Homepage by clicking on the “Publications” 4 Win link in the left hand column. It can also be accessed directly at: http://spfnic.fs.fed.us/wit/WITpubs/PubSearch.cfm. USDA Publication Shopping Cart National Wood In Transportation Program Publication Shopping Cart W<*5lte (ScslQncd and iirtLttt-6 fry the Isatifefcal Wirtfl I* Tca•ruCvvrrsajr lcAaaoni cittoc,r C arr c-Idrnsat afTd- crtsar ;sen j2 sowc6j&oa4fa cttsricscon c i.a:nicdt aPkjdslr £atD 4wt eoelaats-t-d*e;o .n tevf .uv#iacas ia f nrttcai is*c vIDn*Tl/v«s-ltriT laV-rccfinttrfi giooisninp ioA aCi ctUcftftftnctlutloxevnrtet lransnQfdt.y tclatttd far yzj. tr.cn erdar zrrf oublcanon ^cufind I'Tsiaicrc Scms ajaliaiiQric at a a» iiutlo n Pcixatla Ico-mam Format arid raqura fl-* AiTMK Fcaccr wtGf an. you can da^ilQAil flat 9 9 9 9 IsUkUiuLxi&il Vfilm ct ChUQSi. PkiiSi Ikjit3,CU lliiiiitiUiUi rind PjiftUf ntlaoT I fibnJKjJiCt I CftrcPmrt Trgnss-;.ngfca2 L.1ibrary 1 .HMI.lt . - ar-ia.yfvyH.j.iry InfUnw^imi |t;occ.Ai /urn o’: Frequently Asked Questions for Wood Preservation and Related US DA Topics Preservative treatments have long been used to improve wood’s resistance to attack from fungi, insects, and marine Another new feature of the WIT Website is an interactive borers, but many questions still remain about their use. webpage that provides easy and remote access to information Answers regarding preservative treated wood use, types, on projects funded by the National Wood In Transportation properties, and alternatives are located on the USDA Program. Visitors can easily locate specific information on Forest Service Forest Products Laboratory’s webpage demonstration projects dating back to 1989. Some of the Frequently Asked Questions for Wood Preservation and queries that can be used to locate project information include: Related Topics. This webpage can be accessed through a location, year, project type, cost, species used, and structure link on the WIT Homepage (www.fs.fed.us/nu/wit) under type. Much of the retrieved information is available for “HOT TOPICS” or at www.fpl.fs.fed.us/pres_fire/ download in Adobe Portable Document Format (.pdf). The Preservation_FA Q. him. webpage can be accessed by clicking on the link “Project Information” on the WIT Homepage or at the following web address: http://spfnic.fs.fed.us/wit/Index.cfm. 9 9 9 9 0 Results of the Tenth National The seco/ic/place money winner was University of Missouri- Rolla ASCE Chapter with awards totaling $2,000. Their entry Timber Bridge Design Competition placed first in Best Support Structure and second in Best Overall Design. Their design featured two above-deck Sixteen teams of students from universities across the United trusses at each curb supporting a deck designed to act as States matched wits in the recently completed National Timber multi-celled box beams at the positive and negative moment Bridge Design Competition. Open to student chapters of regions and as T-beams near the areas of contra-flexure. The American Society of Engineers (ASCE) and Forest Products deck was built in two sections, a concept allowing one traffic Society (FPS), the competition was made possible by a grant lane to be replaced while the other remains open. from the USDA Forest Service through its Wood In Transportation Program. The Southern Pine Council of the The Rose-Hulman Institute of Technology ASCE Chapter Southern Forest Products Association, Unit Structures LLC, was another big winner, receiving $ 1,500 fox first place in Most and Weyerhaeuser Company provided additional financial Aesthetic Design, second in Best Deck and third in Best support. Southwest Mississippi Resource Conservation and Support Structure. Their twin-arch suspension bridge used Development (RC&D), Inc., coordinates the annual two-inch tongue and grooved deck placed diagonally over a competition. system of 2-inch by 8-inch girders and 2-inch by 4-inch transverse joists. Unique tension connections between The competition’s objectives are to promote interest in the use chords and arches took advantage of the natural tensile of wood as a competitive bridge construction material, to strength of wood. generate innovative and cost-effective timber bridge design techniques, and to develop an appreciation of the engineering The Best Deck first place award went to University of capabilities of wood among future transportation and forest Alabama at Birmingham ASCE Chapter for their CCA- products engineers. treated southern pine longitudinal deck of 2-inch by 4-inch on 2-inch by 6-inch transverse beams, all supported by two Each team designed, constructed and tested their bridges on outside trusses. The entry also received third place in Most their home campus, then submitted documentation of their Practical Design. A second team from UAB place second in activities and results to a panel of judges for review. The Most Practical Design. competition is conducted online via the Internet. Each team is required to post design drawings, test results, and project The Most Innovative Design was submitted by the U.S. highlights on the Web at http://www.msrcd.org/bndge.htm. Military Academy ASCE Chapter, fully illustrating the T o view details of competition results and to access each entry viability of timber in an innovative design and demonstrating in its entirety, click on “2002 Competition Results.” the compression strength and sleek design potential of timber. Two arches supported a transverse beam-longitudinal deck Winner of the Best Overall Design Award sponsored by design in suspension and compression. Their entry also Weyerhaeuser Company was Virginia Tech FPS Chapter. received third place in the Most Aesthetic category. Their design (below) used two two-dimensional, moment- resisting trusses positioned at outside curbs with ledger beams supporting 5/4-inch thick transverse deck boards. A 2-inch by 8-inch stringer added additional support down the bridge center. All wood members were CCA-treated southern pine, with trusses joined by resorcinol phenolformaldehyde adhesive. This entry also placed second in Best Support Structure. The team received cash awards totaling $2,250 for their efforts. The final first place award went to Clarkson University for Most Practical Design. Their variation of through trass design allowed the use of smaller members that can be fabricated from lumber species and grades that have a relatively low modulus of elasticity. Continued Page 4 3 Results of the Design Competition . . . Conference Announcement continued from page 3 Covered Bridge Preservation Other teams capturing top-three awards were Cal State- National Best Practices Conference Fresno ASCE (second in Most Aesthetic and third in Most University of Vermont, Burlington, Vermont Innovative), University of New Hampshire ASCE (second in June 5-7, 2003 Most Innovative), San Francisco State University ASCE Sponsored by (thirdin Best Deck), and Mississippi State LJniversity ASCE National Park Service, Historic Preservation Training Center; (third in Best Overall Design). NPS Historic American Engineering Record; National Covered Bridge Research Program; Federal Highway Other teams competing were State University ofNew York - Administration; Historic Windsor, The Preservation Educa¬ College of Environmental Science and Forestry FPS Chapter tion Institute; and the Historic Preservation Program, Univer¬ and ASCE Chapters from Clenrson University, Washington sity of Vermont University in St. Louis, University of Louisiana at Lafayette, and Oklahoma State University. For a complete review of Papers are sought on the following topics: Competition Results and each individual entry, go to www.msrcd.org/bridge.htm. Results of 1998 through 2001 • Case studies of repair and maintenance projects competitions are also posted online. • Disaster planning and mitigation • Documenting covered bridges The test bridges were 11.8feet(3.6m)longand4.6feet( 1.4m) • Creating friends groups for bridges wide and were loaded with a test weight of approximately 4,500 • Engineering analysis of covered bridges pounds. Average weight of the bridge models was 683 • Lost bridges and their heritage pounds. At full loading, maximum bridge deflection ranged from 1.39 mm to 8.67 mm. Maximum allowable deflection was • Species specificity 9mm. Percent non-wood materials in the bridges averaged 5.3 • Maintenance programming percent; maximum percent non-wood materials allowed was • Application of the Secretary of the Interior’s 25 percent, by weight. A total of 111 students spent 3,360 Standards for Rehabilitation hours on the competition, competing for $10,000 in prizes. • The crafts of timber framing and carpentry in Judges were Bobby Briggs, Weyerhaeuser Company; Scott covered bridges Groenier, USD A Forest Service; and Chad Fowler, Unit • Fire detection and suppression Structures LLC. • Fundraising strategies - Bennie F. Hutchins • Engineering or craft insights into the performance RC&D Coordinator of historic trusses Southwest Mississipppi RC&D. Inc. • The case for building new covered bridges • Interpreting and marketing covered bridges in the spirit of cultural tourism • H ABS/HAER, National Register and State survey programs 11th National Timber Bridge • Repair techniques Design Competition Announced • Covered bridge builders Preferred format is via electronic submission in Microsoft The 11th National Timber Bridge Design Competition is Word to: <[email protected]> no later than the close underway. The deadline for online entry of business December 9,2002. Submissions may be mailed to: (www.msrcd.org) and receipt of mailed material is The Preservation Education Institute, P. O. Box 1777, Windsor, March 28,2003. Visit www.msrcd.org/bridge.htm or VT 05089-0021 no later than December 9, 2002. Abstracts link from the National Wood In Transportation Program should be no more than 500 words. Presentations at the Website at www.fs.fed.us/na/wit. for the rules, conference will be approximately one-half hour in length. If questions and answers, and online entry. For additional selected, presenters will be notified no later than January 17, information contact the competition coordinators with 2003. Final papers must be submitted no later than close-of- Southwest Mississippi RC&D, Inc., at business on April 7,2003. [email protected]. Continued Page 5 4 Current Status of the National Wood Welcome Jeff Bejune In Transportation Program The federal fiscal year 2002 ended on September 30, 2002. We have a new member With a program budget last year of $1.9 million, a sizable of the Wood In increase from fiscal year 2001, we were looking forward to a Transportation Program great year. We conducted our annual demonstration grants staff. Jeff Bejune came competition last winter/early spring and identified a number onboard in August 2002. of projects for funding. Unfortunately, most of those projects He will be assisting with were never funded because of the pull-back of funds to help the Wood In offset the unusually high fire suppression costs that the Transportation USD A Forest Service incurred during the last two quarters of Program’s normal the fiscal year. activities for the next 9 months. Since being with At the time of printing this issue of Crossings, we do not know the Program, Jeff has what our final budget in fiscal year 2003 will be. Therefore, we been responsible for have not announced the annual demonstration grants helping develop several competition. Once we know what our budget is, we will make publications and a decision as to whether or not we can offer a demonstration updating the WIT Website. He is currently finalizing a major grant program this year. For those of you interested in publication pertaining to the design and use of portable submittingaproposal to us, the application form will be similar timber bridges. to last year’s application. The application form can be viewed and downloaded from the Wood In Transportation website or Jeff has worked for Plome Depot and Structural Systems Inc. go directly to the demonstration grants webpage at He was also an aircraft mechanic in the U.S. Air Force from http://www.fs.fed.us/na/wit/WITPages/grants.html 1988 through 1996. Jeff s formal degrees include: Masterof Science-Wood Science and Forest Products, Virginia Tech; B.S. Building Materials and Wood Technology, University of Massachusetts; B.A. - Management Studies, University of Maryland; and A.A. - Japanese Studies, University of Maryland. Ironically, Jeff had a connection to the Wood In Conference Announcement , . . continued Transportation Program before he was hired. After from page 4 completing his Masters, he took some time off to hike the Appalachian Trail. During his journey he crossed the Pochuck Quaqmire Bridge in New Jersey. After admiring the structure Presenters will be asked to sign a release authorizing for a bit, he took a picture of it. Little did he know that shortly publication of their articles either in print, after finishing his hike he would be employed by a program electronically, or in alternate formats for people with that played an important role in the bridge’s construction. disabilities. Papers will be published in the conference proceedings. Some articles may be printed in other publications and/or may be published on the Internet. Presenters will receive complimentary tuition to the conference, conference events and a modest travel stipend. For more information, access the conference website at www.nvm.edu/coveredbridges/. Contact Judy L. Hayward, Executive Director of the Preservation Education Institute, at [email protected] or (802) 674-6752 for any questions you might have. 5 NEW PUBLICATIONS Best Management Practices for Chestnut Oak: Qualifications & Outcomes for the Use of Preservative-Treated Use in a Glulam Timber Bridge ood in Aquatic Environments A recent project, that was officially closed in federal fiscal year in Michigan 2002, that analyzed the potential use of chestnut oak lumber This new publication has been developed to meet the specific for glulam stock for bridges was conducted with the financial issues and concerns of using preservative-treated wood assistance of the Wood In Transportation Program. The products in Michigan. This Best Management Practices project provided insight on whether or not chestnut oak (BMPs) manual is intended to: 1) serve as a reference to assist lumber could be another viable hardwood species for modern designers and end users of preservative-treated timber day timber bridges. The study was completed in cooperation products with selection of the proper preservative-treated with the Pennsylvania State University, the Pennsylvania timber, and, 2) help detennine the best management practices Rural Development Council, the Pennsylvania Department of for the use of preservative-treated wood in aquatic Corrections, several businesses, and the USDA Forest Service. environments. To obtain a copy of the report, please contact the National The manual was adapted from Best Management Practices Wood In Transportation Information Center at 304-285-1591 for the Use of Treated Wood in Aquatic Environments with and request publication number WIT-07-0021 or visit the permission from the Western Wood Preservers Institute and Wood In Transportation website at www.fs.fed. us/na/wit to the Canadian Institute of Treated Wood. The Best download a copy. Management Practices outlined in the manual, incorporate guidelines that were developed by the American Wood Preservers Institute (AWPI) and the American Wood- Preservers’ Association (AWPA), with certain adaptations for use in aquatic environments in Michigan. The Michigan Department of Natural Resources, Michigan Department of Environmental Quality, Huron Pines RC&D, and Northwest Design Group, Inc. collaborated in the development of the publication. The project was funded in part by the USD A Forest Service Wood In Transportation Program. To obtain a copy, please contact the National Wood In Transportation Information Center at 304-285-1591 and request publication number WIT-05-0029 or visit the Wood In Transportation website at www.fs.fed. us/na/wit to download the publication. Article contributions, questions, or comments may be sent to Ed Cesa, Program Coordinator, National Wood In Transportation Information Center or Mr. Chris Grant, Program Assistant, USDA Forest Service, 180 Canfield Street, Morgantown, WV 26505; Phone: (304) 285-1591; FAX: 304-285-1587. or e-mail: [email protected]. A change of address may be submitted to [email protected]. For publication requests, e-mail [email protected]. us. Crossings is a service of the USDA Forest Service, Northeastern Area, State and Private Forestry, and is distributed quarterly to individuals and organizations without fee. Products, designs, and treatments mentioned by contributors from outside the USDA are not necessarily endorsed by the USDA, nor do statements made herein reflect the policy of the USDA. In all cases, consult with appropriate professional and state or local regulatory agencies for conformance to applicable laws and regulations. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building. 1400 Independence Avenue, SW, Washington, D.C. 20250-9410 or call (202) 720-5964 (voice and TDD). USDA is an equal opportunity provider and employer. 6

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Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.