CONTENTS ISSUE No. FEBRUARY 2008 001 PAGE TITLE 2.......................................................Message from the President • SEABC's Newsletter is edited and 4................................................... SEABC Technical Committees managed by Robert Smith 5.....................................................Seismic Restraint Task Force ([email protected]) 6................................................................................ On the Web • Submissions to the newsletter are 7...................................................................Structures Congress encouraged and all members of the 7............................................Applied Technology Council Report SEABC are asked to actively 8..................................................IStructE Centenary Conference participate in contributing to our 10 .......................... Olympic Speed Skating Oval - Roof Structure newsletter. 11 .......................................Massive Pile Test at Pitt River Bridge • SEABC editing staff reserve the 13 ........................................................................... Ask Dr. Sylvie right to include or exclude 17 ................................ Advantage Steel Article - Steel and Glass submitted material and in some 19 ................................ Advantage Steel Article - Steel and Wood cases edit submitted material to 25 ........................................................... NCE Article - Burj Dubai suit overall space requirements. If 28 ................................................................Mark Your Calendars submittals are not to be edited, 29 ..................................................................Question of the Day please advise editor at submission time. Published by the Structural Engineers Association of BC Executives / Board of Directors President: Dave Davey Secretary / Treasurer: Surrinder Parmar Other Directors: David Harvey, Cameron Kemp, Leslie Mihalik, Jim Mutie, Andrew Seeton, Rob Simpson, Thor Tandy, Carlos Ventura Communications Committee Chair: David Harvey CSE Organizing Committee Chair: John Pao Education Committee Chair: Andrew Seeton Professional Practice Chair: Thor Tandy Technical Committee Chair: Ken Elwood Newsletter Editor: Rob Smith [email protected] Assistant Editor: Clarissa Brennan Webmaster: Stephen Pienaar [email protected] Web site: http://www.seabc.ca February 08 SEABC New sletter February 2008 Message from the President By Dave Davey; SEABC Interim President It is with great pleasure that I accept the role of President of our newly formed Structural Engineers Association of BC and am able to welcome our new members. Of course, most of you were members of the Division of Structural Engineers or the Vancouver Structural Engineers Group or both and the activities of these two associations are continuing under the SEABC banner. SEABC was officially incorporated as a non-profit Society under the Provincial Society Act on January 3, 2008. This event marked the culmination of over two years of discussion and a year of planning with input from many structural engineers and with the approval of over 80% of the members of both the DSE and VSEGS. We have an interim Board of Directors and four committees in place, but there are many vacancies still to fill. The scope of our activities was well set out in the proposed organization chart that was published last year and which is reproduced below. The job of the Directors is to provide overall direction and government of the Society but the main thrust of the Society’s activities is expected to come from the committees working in the four main functions shown on the organization chart. The two functions of education and professional practice are basically the functions that were well performed by the VSEGS, the CSE Committee and the DSE in the past and those bodies are carrying on with this work under the cloak of SEABC. However, the functions of our Technical committees and Communications groups are widening the range of services that we want to offer to our members. It is gratifying to see the re- activation of technical committees that were originally set up by SECBC in the 1990s. The Technical manual that was drawn up by SECBC, though not quite a DIY guidebook for general practitioners of Structural Engineering was a valuable reference to help engineers keep up to date on the state of the art. Design codes are constantly changing and so are construction procedures and so the topics of interest are changing also. Two such topics have already been selected for review. One is the design of guards and handrails, of which a good Page 2 of 30 SEABC New sletter February 2008 proportion of recent construction can be seen to be deficient. Currently, Technical Committee guardrail design is often left to the manufacturer and does not begin until Ken Elwood - Chair construction is already under way. This can mean that the inter-face ° Rob Simpson between guard and structure is not coordinated and the question arises as ° Robert Jirava to who is responsible (and who is being paid to look after it). The design of ° Thor Tandy guards is the topic of an APEG seminar in Kelowna on January 30th. ° Kevin Lemieux The second is the question of how the 2005 Code seismic Education Committee requirements impact on the design of foundation walls. The change in Andrew Seeton - Chair design from 10% in 50 year return period to 2% in 50 years has resulted in a Leslie Mihalik - Vice chair large increase in seismic retaining wall design pressures coming from the Fran Abbuhl - Secretary ° Surinder Parmar geotechnical consultants. This needs to be addressed in a manner similar ° Martin Bollo to how the 2005 NBCC liquefaction issue was dealt with by the geotechnical ° Joel Hampson task force. The whole area of soil / structure interaction is complex. How do ° Tony Martin we bring this whole problem down to the practical level so that practicing ° Joe Tam engineers can produce realistic designs? We’d like your input on this or any ° Ken Elwood other technical matter that you feel needs to be brought to attention. ° Mahmoud Rezai ° Donald Burkholder The Communications group already has our website up and running at ° Gord Shannon www.seabc.ca. I hope that you have already had a chance to view it. It will CSE Organizing Committee improve and grow in time and very shortly it will incorporate an interactive John Pao - Chair forum for members to communicate directly with the SEABC body. It will be Fran Abbuhl - Secretary a site to post information of interest, to pose questions and to receive ° Carlos Ventura answers. ° Joel Hampson This Newsletter is a continuation of the DSE Newsletter. We hope to ° Martin Bollo ° Bob Schubak have the Newsletter issued quarterly in order to bring you more articles of ° Steven Kuan local interest and to keep you updated on what we are doing. ° Svetlana Brzev I see Communications as the most important function of SEABC. I Professional Practice believe that we all want to know what is going on in our province, we want Thor Tandy - Chair answers to our problems, we want a way to exchange information with ° Jim Mutrie others, we want all engineers to be working to a common standard that we ° David Harvey can all reach. We want communication and feedback. This is the task of ° Mazeed Abdulla our Communications Group. ° Leonard Pianalto ° Peter Trainor We are a non-profit society. We have no office and we have no full ° Andrew Watson time staff. We are a body of volunteers. Our success will depend on the ° Marian Podlovsky number and contribution of our members. If you are not yet a member of ° Rob Smith SEABC, I encourage you to register. If you have not received a Registration Communications Form by email, please download the form on the website. If you would like David Harvey - Chair to be a volunteer to work on one of our committees, please let us know. We ° Rob Smith will try to fit you into your preferred area of interest because the more ° Stephen Pienaar volunteers that we have, the less becomes everyone’s workload. ° Robert Jirava The committee members are as follows: ° Jeff Corbett ° Greg Beaveridge Interim Directors ° Doug Williams David Davey - President ° John Peddle Surinder Parmar - Secretary / Treasurer ° Grant Newfield ° Elizabeth Lawrynowicz ° David Harvey ° Jim Mutrie ° Leslie Mihalik ° Cameron Kemp ° Rob Simpson ° Thor Tandy ° Andrew Seeton ° Carlos Ventura Page 3 of 30 SEABC New sletter February 2008 • The makeup of the sub-committee is the SEABC Technical responsibility of the sub-committee chair. The chair decides the desirable size (max and min) Committees of the sub-committee and recruits a core committee membership. • Additions to the sub-committee membership are decided by the sub-committee chair, in Proposed working of the committee: consultation with the sub-committee members. New members will be selected from a list of T E C H N IC A L E X E C U T IV E C O M M IT T E E those members who have expressed an • The technical executive committee is interest to the technical executive committee in responsible for coordinating the work of the joining the sub-committee. technical sub-committees and task groups. It should be as small as possible (approximately 5 to 6 people). T A S K G R O U P S • Task groups will be formed by the technical • The technical executive committee will have executive committee or at the request of the regular meetings at an interval to be decided. sub-committee chairs. It is expected that 2 or 3 meetings per year will be