Newsletter of the
Structural Engineers Association of Washington
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State Leadership
President
Jim Farley (SW)
Vice President
Jill Shuttleworth (SC)
Treasurer
OPEN
Secretary
OPEN
Past President
Trustees
Mike Visser (SE)
Shalini Prochazka (SE)
Jill Shuttleworth (SC)
Daniel Sumerfield (SC)
Logun Rasmussen (SP)
Colby Litzenberger (SP)
Jim Farley (SW)
In the Issue
- June Dinner Meeting is Going Virtual
- 2020 SEA NW Conference Update - Postponement
- SEAW Education Committee Chair Position Opening
- SEFW funds $15,000 for SEAW Scholarship Program
- NCSEA SE3 2020 Survey
- SEAW Wind Engineering Committee (WEC)
- Disaster Prep/Response Committee (DPRC) Update
- Spring 2020 Seminar Highlights
- Engineer’s Notes from Afield
- Structural Glass Design using Glass Failure Prediction Model
- SEAW EEC White Paper 1-2019
- State and Chapter Committee Reports
- Membership Postings
- Employment Opportunities
- Upcoming Events
- From the Editor
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Seattle Chapter's June Virtual Meeting!
Our in-person June dinner meeting has been moved to a virtual meeting.
Date:
June 23rd, 2020
Time:
3:30PM - 5:00PM PST
Location:
GoToWebinar
Cost:
Free!
Amid the COVID-19 outbreak, the Seattle Chapter is offering this webinar to all SEAW members at no charge. Viewing the webinar will qualify you for 1 PDH.
To Register:
Click here
to register for the webinar. After registering, you will receive a confirmation email containing information about joining the webinar.
Presentation:
The Port of Seattle is building an expanded International Arrivals Facility at Sea-Tac International Airport to alleviate the pressure on its existing 1970s-era facilities in its South Satellite terminal. The expansion will include a 450,000 square foot grand hall for baggage claim and customs processing, a new sterile corridor to increase the number of international gates available to travelers by 60%, and an iconic new 780 ft long and 85 ft high pedestrian walkway spanning an active aircraft taxi lane to connect the south satellite terminal to the new facility. The height of the pedestrian walkway is enough to allow a Boeing 747 to taxi underneath, and the walkway is longer than the Space Needle is tall.
SOM’s elegant architectural design exposed the pedestrian walkway’s structural system, which consists of a unique combination of steel cables, box girders, sliding bearings and reinforced concrete shear walls. Clark Construction’s team led the transport of the center span from a remote construction yard to its final location, which allowed the construction of the bridge to be completed with a limited 10-day taxi lane closure. The 1,600 ton center span, longer than a football field, was moved into place using a combination of self-propelled modular transporters (SPMTs) and strand jacks.
This presentation will focus on the unique features of the pedestrian walkway and some of the challenges involved in its design and construction.
Presenter:
Jordon Deluce, SE is a structural engineer with KPFF Consulting Engineers in Seattle, WA. He is the project manager for the structural design of the new pedestrian walkway connecting the south satellite terminal to the new International Arrivals Facility at Sea-Tac International Airport. Jordon has a passion for creating elegant structural designs to solve unique challenges, and has designed a variety of structures including buildings, bridges and other structures over his career.
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2020 SEA NW Conference Update - Postponement
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Due to the uncertainties associated with the Washington’s phased approach to allow gathering following the Covid-19 pandemic, the SEAW Seattle Chapter NW conference planning committee has elected to postpone the September 17th-18th, 2020 SEA NW Conference to September 23rd-24th, 2021. Well-being of our attendees is our high priority and after consultation with other NW SEAs, we felt this is a prudent decision and hope that you understand our decision.
Currently registered attendees will receive a full refund on their registration fees.
Please save the date for our conference next year.
Save the Date:
September 23rd-24th, 2021, The Westin Hotel, Seattle, WA
SEAW Northwest Conference Committee
Chun Lau, Chair
I
Darrell Staaleson
I
Jessica Lim
I
Shalini Prochazka
I
John Gunn I Jim Mattison
I
Scott Douglas
I
Sean Augustino
I
Katie Bohocky, Executive Director
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SEAW Education Committee Chair Position Opening
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By Nathalie Boeholt
The SEAW Education Committee is looking for a new chair or co-chairs. The current chair (Nathalie Boeholt) has decided to step down after over 4 years of volunteering in this position. This is a great leadership opportunity to chair a committee composed of dedicated individuals from different companies and agencies in the region. In the last year, the committee has grown from 3 to 7 members.
The purpose of the Education Committee is to plan and organize structural engineering seminars for the SEAW and the AEC community. These events represent a significant portion of the revenue for SEAW. In the last few years, seminars have expanded to webinar options and the latest event on May 16
th, the 2018 IBC Structural Updates, was webinar-only due to the COVID-19 pandemic.
The benefits of joining are the following:
- Meet and work with technical experts in the field of structural engineering (technical or code related),
- Stay current with the latest code update cycles and latest technical topics,
- Improve your organizational, planning and people skills,
- Attend the seminars/webinars for free,
- Free lunch at committee meetings (when we go back to in-person meetings).
We are looking for one individual to chair or two individuals to co-chair for a minimum of 1 year. Nathalie will remain on the committee and be available to coach the new chair(s). We use a website for sharing a schedule and documents which will help make the transition seamless. Organizing seminars is just like “throwing a big party” as the previous chair would say…and you get the benefit of going for free, being surrounded with very smart people and learning something along the way!
Please email
nathalie.boeholt@seattle.gov if you are interested. We are also always looking for new members so feel free to email about that too.
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SEFW funds $15,000 for SEAW Scholarship Program
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By Angela Gottula
The Structural Engineers Foundation of Washington is pleased to fund four scholarship awards totaling $15,000 to four Washington university students as part of the SEAW Scholarship Program. These awards are funded from SEFW’s mission scholarship fund as well as a $5,000 pledge from SEAW from dues money budgeted for scholarships. The SEAW Scholarship Committee considered 13 applications and determined to award two full scholarships at $5,000 each and two partial scholarships at $2,500 each.
Congratulations to these four incredible students:
- Amanda Kalab, EIT, is receiving a $5,000 SEAW Scholarship. Amanda graduated in May 2020 from the University of Idaho with a BSCE and will attend Washington State University in the fall to pursue a MSCE with emphasis in structural engineering. While at University of Idaho, Amanda was president of the ASCE student chapter, participated on the AISC steel bridge competition team, joined the Society of Women Engineers, and volunteered with the Clearwater Environmental Institute. She previously interned at Kiewit, in both the Englewood, Colo., and Everett offices, and at Sierra Construction in Shoreline. She participated in multiple intramural sports, including basketball, volleyball, frisbee, and badminton. Amanda was the valedictorian at Marysville Pilchuk High School and grew up in Marysville.
- Marcella Li, EIT, is receiving a $5,000 SEAW Scholarship. Marcella will graduate in June from the University of Washington with a BSCE and is headed to Stanford University for an MSCE. She hopes to end up back in Seattle working as a structural engineer. While at UW, Marcella served as president of the SEAW student chapter and secretary of the ASCE student chapter, and she participated on the ASCE concrete canoe competition team and joined the Society of Women Engineers. Marcella recently completed an internship at KPFF Consulting Engineers but before that had several internships at Boeing, where she was able to work on 3D modeling, finite element analysis, and various concept design and feasibility analysis projects. An avid skier and rock climber, she participated in the Husky Snow Club and Climbing Club. Marcella is from Kent and graduated from Kent-Meridian High School.
- Rami Sabra, EIT, is receiving a $2,500 SEAW Scholarship. Rami earned a BSCE from University of Washington in 2019 and will earn a MSCE from UW in June 2020. As an intern at Reid Middleton he performed seismic evaluations of earthquake-damaged buildings, and prior to that, as an intern at Sabco Consulting Engineers, he did wind and seismic calculations. Rami has also been involved with the National Honors Society, forest recovery efforts, and tutoring volunteer opportunities. Rami enjoys myriad outdoor sports, such as swimming, soccer, frisbee, skiing, cycling, hiking, and even wiffle ball! He is from Everett and graduated from Cascade High School.
- Jason Wells, EIT, is receiving a $2,500 SEAW Scholarship. Jason earned his BSCE from University of Washington in 2019 and will earn his MSCE from UW in June 2020. Jason served as Project Manager and Structural Analysis Lead on the UW concrete canoe competition team, which earned first place overall at the 2019 regional competition. He also was active with the ASCE UW Student Chapter and the Washington State Opportunity Scholarship program, mentoring first- and second-year STEM students. Jason was an intern at WSDOT’s Bridge and Structures Office and after that with HNTB, working on the light rail project. Recreationally, he enjoys staying active by playing sports, walking, and jogging. Jason grew up just outside Olympia and attended Timberline High School in Lacey.
These students will be recognized at the SEAW Seattle Chapter Spring Social meeting, happening Tuesday,
June 23 from 3:30-5PM
over the Zoom virtual meeting platform. Registration is free!
Congratulations to these student winners!
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By Hannah Evans
The NCSEA SE3 Committee is requesting your participation in its third nationwide survey of structural engineering professionals, now through mid-June! This is the largest survey of structural engineering professionals in the United States and provides valuable comprehensive information about our profession regarding demographics, compensation, satisfaction, engagement, and retention.
By participating in this anonymous survey, you will be helping us understand which factors influence engagement and retention for structural engineers living in Washington.
Please take the 10-15 minute survey and forward to as many colleagues in your area as you feel comfortable, especially ones that are not part of SEAW or those who have left for other careers, as they are the hardest to reach, but equally important! We need to get feedback from as many Washington-based structural engineers as possible to ensure our voice is heard at the national level when survey findings and paths forward are discussed.
Thank you so much.
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SEAW Wind Engineering Committee (WEC)
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By Scott Douglas
Wind Engineering Committee (WEC)
This year the SEAW Wind Engineering Committee has been meeting monthly, typically the third or fourth Thursday of the month.
- The Committee’s primary effort for the last couple of meetings has been formalizing recommendations for possible Shoreline Exposure revisions to the City of Seattle’s Wind Load Factor Map. Revisions result from lower wind speeds in ASCE 7-16 that will be adopted in the 2018 SBC this November.
- SEAW has partnered with the Structural Engineers Association of Oregon (SEAO) to identify the specific wind speeds and boundaries of the special wind regions in our respective states. These SWR’s are identified in Section 26.5.2 of ASCE 7. $10,550 has been raised to date out of the $25,500 total required for this study SEFW has set a directed fund and contribution box for the SWR wind study at https://sefw.org/donate.html for those wishing to donate to this effort.
- Volume 1 of the Wind Design Manual is available for purchase. Volume 1 is similar in format to the five - volume SEAOC Seismic Design Manual with nineteen example problems. Seven of the problems involve Roof Solar Panels, and SEAW WEC members authored five of the remaining twelve problems.
- The publication is available on the ICC Website at: http://shop.iccsafe.org/ and typing “seaoc wind design manual” in the Search Box. A discount price is available for ICC members or NCSEA members (all SEAW members are NCSEA members) at http://www.ncsea.com/.
- A second volume of the SEAOC Wind Design Manual is being planned for the future. Volume 2 will focus on ASCE 7 Chapters 29 and 30 on non-building structures and components and cladding. The SEAW WEC would appreciate suggestions. For example, problems to include in Volume 2 from the general membership. Please forward to sdouglasscott@gmail.com.
Next Meeting: Thursday, June 18, from 12:00 noon to 1:00 pm.
Go to meeting log-in information:
Access Code:
849-381-845
Please contact the WEC chair, Scott Douglas
sdouglasscott@gmail.com
, to join the SEAW WEC and to receive information and announcements on Committee activities and actions.
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Disaster Prep/Response Committee (DPRC) Update
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By Joyce Lem
DPRC Chair
Hurray! The first round of making WAsafe ID cards is expected in early June. The Washington Association of Building Officials (WABO) will be “making” the cards. There are more than 100 SEAW members who have been accepted into the WAsafe database. If you have been accepted into WAsafe but have not submitted a photo for your ID card, please do so. Requirements: take a mug shot with your name on a card at chest level (so we do not mix you up with someone else). Use a plain background, no hats, and no sunglasses. Also, the file size must be a minimum of 1 Mb.
You can go to
https://www.waserv.org
to join as a WAsafe Evaluator if you have taken either the WAsafe BSA training or the Cal OES SAP Evaluator training. For Cal OES SAP Evaluators, we require you watch an online module on the WAsafe Concept of Operations for Washington State (as opposed to the California processes) and pass a short quiz. However, you can start the enrollment process by entering your profile information and the WAserv electronic database will save it for you.
In the meantime, the DPRC is continuing to work on developing the WAsafe website and the Operations Manual. We are actively continuing our monthly committee meetings, now held online, every third Tuesday of the month at noon. Newcomers are welcome to attend – we are usually fewer than a dozen attending these meetings so there is plenty of opportunity to chime in.
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Spring 2020 Seminar Highlights
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By
Scott Douglas, Nathalie Boeholt
Spring 2020 Seminar: Review of the Changes to the 2018 IBC Structural Provisions
On Saturday, May 16
th
, 2020, the SEAW Education Committee hosted the 2020 SEAW Spring seminar, which was intended as a continuation of the 2019 SEAW Fall seminar (ASCE 7-16 and ASCE 41-17 standards updates). Given the COVID-19 pandemic, the Education Committee decided to change the all-day, in-person seminar to a virtual webinar. There were 90 participants, including attendees from Oregon, Idaho, Colorado, Vancouver BC and Chicago. A total of 8 presenters who practice in various firms and agencies in the Seattle area gave the webinar.
A few seminar highlights included:
IBC Chapter 16 –
IBC, Washington State, and City of Seattle Changes (Nancy Devine) – the 2018 IBC and associated State of Washington and City of Seattle Code amendments will become effective on November 1, 2020.
IBC Chapter 17 -
Special Inspections and Tests (Jon Siu) – Several requirements have been added for special inspection of mass timber construction.
IBC Chapter 21 -
Masonry, TMS 402-16 (Ed Huston) – CMU assembly compressive strengths are higher and veneer cavity widths for prescriptive design have also been increased. New masonry anchor bolt crushing and interaction equations yield higher values.
IBC Chapter 22 -
Steel, AISC 360-16 (Alexander Lang) – There are numerous revisions, including new bolt and HSS standards and significantly updated coped beam strength design procedures.
IBC Chapter 22 -
Steel, AISC 341-16 (Taylor LaForge) – Provisions for the design of gusset plates, doubler plates, continuity plates and multi-tiered braced frames have been changed. Columns shared by intersecting frames have new requirements beyond the 100/30 rule.
IBC Chapter 22 -
Cold-Formed Steel, AISI (Erik Lofthus) – Seven separate standards have been combined into two standards and there are expanded shear wall capacity tables.
IBC Chapter 23 -
Wood, AWC NDS 2018 (James Farley) – New heavy timber framing requirements have been added as well as separate E values for deflections that include shear deformation. Western Juniper has been added to the list of lumber species.
IBC Chapter 23 - Tall Wood Building Provisions
- (Hans-Erik Blomgren) – Introduction of the new heavy timber construction types, IV-A, IV-B, IV-C and IV-HT (old type IV). Fire resistant ratings, including the determination of connection fire resistant ratings for mass timber buildings, have been added.
Seattle Existing Building Code (SEBC) & URM Program -
(Nancy Devine) – The 2018 SEBC is using ¾*BSE-2E as the required Hazard Level with the intent for the 2021 SEBC to use the full BSE-2E and the 2024 SEBC will use the new hazard maps in ASCE 7-22. The URM retrofit program which is proposing all URM buildings in Seattle (except single family and duplexes) undergo a complete seismic upgrade is currently on hold due to the COVID-19 response.
For those who did not attend, the recorded Spring 2020 webinar on the 2018 IBC will be available for purchase at the same price as the actual webinar: $190 SEA members / $290 non-members / $50 student / $100 notes only. The Fall 2019 seminar on ASCE 7 and ASCE 41 is also available for purchase for $240 / $340 / $50 / $100.
The Education Committee would welcome input regarding future topics.
Please contact
SEAW
’s office at
info@seaw.org
to purchase the recordings or any other questions or comments.
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Engineer’s Notes from Afield
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NOV 2019. Disneyland, Anaheim, California
By Darrell Staaleson, SEAW State President 2020
The NCSEA convention 2019 was held at Disneyland. There was non-stop learning: attending seminars, discussing with colleagues, visiting vendor exhibits and learning about new products, and doing some marketing to get vendors to sponsor our SEAW Seattle Chapter Northwest Conference, which was originally planned for SEP 2020 - now rescheduled to SEP 2021. My wife and I flew in a few days before the convention and spent our time exploring Disneyland. It was a perfect complement to the structural engineering.
So, you go to Disneyland during the day and it is exciting to go on the rides and see everything - it is fun. And my wife bought a program which she used to plan our adventure. We went to various areas and rides when they were not crowded. And we had a MaxPass which allowed us to schedule many of our rides, so we did not have to wait in line as long. And she planned down-time for a break from the crowds and for my daily siesta. That level of planning was impressive even by my German standards. But like many (most?) women, her employers have never utilized more than a third of her skills. It has been disheartening to watch over the years. And yet, there is hope. A few years ago, when I walked over the Brooklyn Bridge with my mother, she stopped at the plaque on the second Tower on the Brooklyn side and pointed. She looked at me and pursed her lips and said, "Read it!" Which I did. Then she said, "A man started this project, but a woman finished it! And don't forget it."
We really were looking forward to visiting the new world of Galaxy's Edge. The main entrance used Frank Lloyd Wright's concept of "Embrace and release." That is, essentially, the enclosed entry that opens into the grand gallery. And you leave the "Old West" and enter "Star Wars." Our first visit was in the early afternoon. We stopped at the bathrooms. We men were all in the courtyard, with strollers and kids cavorting. Waiting. I was just beginning the wonder if they had all snuck out the back when there was total quiet. Someone said, "It's Rey!"
We all took a breath at the same time. There was this pause and then Rey was there and surrounded by girls. And there was not that boy-band-screaming. It was just like when Jane Goodall walks into a room full of people. It was awe.
I had wanted to have a picture with Rey as well. But there were a lot of kids and they were more important. And it was inspiring to watch. What better way to empower young women than with a superhero who saves the galaxy from evil and can fight with a lightsaber. Anyway, I had already hung out and had a photo with Chewbacca.
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Darrell Staaleson, P.E., S.E. SEAW State President; Chewbacca, freedom fighter, pilot, chess player
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We went back during the evening and Galaxy's Edge was unbelievable. The crowd was in the moment. The lights make everything glow and you can easily imagine being on another world.
A young man proposed to his girlfriend in full Jedi costume, with lightsabers, in front of the Millennium Falcon. Another couple staged a lightsaber battle and their photographer took still action photos. I let myself be a boy again. My wife and I decided to go on Smuggler’s Run. We had no idea what to expect. Next thing we know we are in the Millennium Falcon - a real flight simulator with actuators and a 3D screen. We are piloting the Millennium Falcon! I am sitting in Chewie's chair and my wife is in Han's chair. Behind us are three guys with attitudes.
They are our gunners. One of them tells the other two that he is an architect. My wife turns to me and says, "And that's why he belongs in the back seat." I think he heard that! We have no experience in cosplay or video games. But I am 13 years old for a while and I say, "Hang on, lady. We go for a ride!" The guys in the back grouse. My wife laughs at my Indiana Jones reference. I made the jump to lightspeed.
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It was really violent motion. And with the visuals, we were flying the Millennium Falcon - In space! Back to 60 years old for a moment - it triggered an episode of vertigo and I nearly lost my lunch. It was fantastic.
The guys in the back were mad because we did not win. They mean-mugged us as they were leaving. I am not certain how you "win" at a ride. But I was still 13 years old and could not resist making a comment. So, I said, in my best Darth Vader voice, "I find your lack of faith disturbing." What is kind of sad is that they let the contrivance of "winning" interfere with reality and being present in the moment. I see that a lot in America.
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Walking around in Disneyland was really difficult at times. Of course, we were there on one of the busiest holidays of the year – Veterans’ Day. And the place was at full capacity with around 70,000 visitors. All of the jostling and crisscrossing and the strollers got really tiresome. We took the monorail to get past downtown. While we were riding, we began talking about how we were inspired being in the architecture and artistic expression of this place - colors, drawings, music, the smell of food. I was excited to see the curved prestressed beams like the ones that SEAW's own Bob Mast, S.E. designed for the Seattle World’s Fair.
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Photo by Brittani Tuttle.
"Celebrating 60 years with the Matterhorn, Monorail and Submarine Voyage at Disneyland."
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We talked about how this place could be a lot "better." For example, the operation of the train station was cumbersome. The loading and unloading could easily have been done quickly using natural flow and the many gates that were nicely spaced along the length of the train. Instead they had turned it into a Soviet-style line with yet another ticket agent. It felt like it took all day. Everyone was asking why we could not just get on the train. The situation made everyone unhappy and grumpy, including me. With just a little planning it could have been turned into something interesting and fun. And from a purely economic standpoint anyone with half a brain can tell you that happy people spend more money than grumpy people. It was stupid.
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But that negative experience was a good lesson in how a place like Disneyland really could be a living experiment of our future world. Instead of people having arguments about light rail and public transportation based on political ideology, we could do what our engineering minds are trained to do. We could test concepts to demonstrate how a prototype works in reality and make improvements as our knowledge and experience advances.
Since then we have been hit with a quarantine in response to a pandemic followed by civil unrest triggered by the death of a man in police custody. Without passing judgement on anyone, I think the magnitude of social and economic disruption has been much greater than it need have been because of leadership ignoring the planning and preparation that had been developed by experts in medicine and disaster preparedness. Engineers face the same unwillingness of leadership to accept our warnings about Infrastructure and major earthquakes.
The aftermath of Cascadia M9 would be similar to what we are experiencing today. Except that we would be in a situation where many roads and bridges are impassible. Where a third of buildings are collapsed or damaged beyond repair. Where there are 50,000 to 100,000 dead in the Puget sound area alone. Where people are without food, water, shelter, sanitation, or medical supplies. Where there would be the very real possibility of economic collapse. People are living in fear now! Can you imagine what it would be like after Cascadia M9? I think the biggest threat we face is not necessarily a complete lack of adequate funding. Rather, it is the belief that it will never happen based on an ignorant notion that experts in our field are less reliable than internet conspiracy theories. Maybe our current troubles will also have a positive aspect. Maybe we can convince people that the threat is real, and that we can survive a Cascadia disaster, if we are prepared, without it needing to become a catastrophe.
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We ended our adventure at Future World. After riding Hyperspace Mountain six times we just sat for a while and took in the experience of the place. It was inspiring. I recalled a conversation from Facebook where I was attempting to explain how we as a society could do better – much, much better in fact -- with forward thinking like the ideas expressed by Buckminster Fuller. The person I was corresponding with had no vision. They thought they were being cost conscious, but they had no concept of "total cost" - like clients who focus on the engineer's fee instead of on the total project cost. All good engineers usually save their clients several times their fee. And they had no concept of the imputed (Who talks like that?) cost of the infrastructure. They got ugly and called me a "Liberal Utopian Dreamer." Sitting there we joked about being a "Utopian Dreamer" like Walt Disney.
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Future World, Disneyland.
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Structural Glass Design using Glass Failure Prediction Model
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Joshua Schultz, PhD, PE, LEED AP
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By Joshua Schultz, PhD, PE, LEED AP
While structural and architectural glass is ubiquitous in modern buildings, its design remains an enigma to many engineers due to at least three factors: 1) the lack of a comprehensive design code, 2) the need to design for probabilistic failure instead of allowable or ultimate stresses, and 3) the relatively complex modeling needed to capture stresses throughout a member.
However, successful application of these concepts through ASTM E1300 and the Glass Failure Prediction Model (GFPM) can result in stunning designs as shown in the figures from recent projects like the PSG Canopy and Curtainwall at SUNY Fredonia Science Center.
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Most glass is designed by referencing ASTM E1300 (2016) in North America. As a result, engineers need to thoroughly understand E1300 as the foundational reference for designing glass. In fact, the E1300 non-factored load (NFL) design charts in Annex A1 allow quick selection of minimum lite thickness based on geometry and desired load resistance of annealed glass. Design thickness for other glass types (heat-strengthened (HS), fully tempered (FT), laminated glass (LG), insulating glass (IG), wired, and etched) are readily obtained by applying modification factors to the annealed selection.
While this procedure appears straightforward
, it is essential that designers understand the assumptions and limitations of E1300
. Notably, the design charts in Annex A1 of ASTM E1300 are limited to the determination of the minimum thickness of glass that is simply supported along at least one edge and has a rectangular geometry under a uniform load. While Appendix X6 offers apparently “conservative” allowable stresses for use with finite element analysis for atypical glass geometries, the source of these values is unknown. There is only a loose correlation between these stress values and the actual probability of breakage (POB). Since this limitation extends only to the charts in Annex A1 and not the procedure of Annex A2 it is important for designers to understand both the theory behind the design charts and methodology presented in ASTM E1300.
Design strengths for POB for wide ranges of geometry, loads, and glass types can be determined (e.g., figures shown) by leveraging the GFPM (which serves as the basis for the NFL charts). Note that efficient design using statistical failure behavior requires an accurate determination of a multitude of factors: the single largest maximum principal stress, stress distributions, surface flaw characterization, residual compressive surface stress, load-duration, temperature, and humidity effects, etc. In order to accurately use the ASTM E1300 design method, it is important to understand each term and how it has been integrated into the procedure over time.
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PSG Canopy and Curtainwall at SUNY Fredonia Science Center (Photo Credit John Knowles)
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For more detailed information:
Upcoming Webinar:
Design Standards and Articles Explaining How to Use Glass Failure Prediction Model:
ASTM International. ASTM E1300-16
Standard practice for determining load resistance of glass in buildings. West Conshohocken, Pennsylvania, USA. ASTM; 2016.
https://www.astm.org/Standards/E1300.htm p. 1-62.
ASTM International. ASTM E2751-17a.
Standard Practice for Design and Performance of Supported Glass Walkways. West Conshohocken, Pennsylvania, USA. ASTM; 2017.
https://www.astm.org/Standards/E2751.htm p. 1-8.
GANA B. GANA Glazing Manual.
Glass Association of North America. 2004.
www.glass.org
Soules JG, Morse SM, Norville HS. Application of the Glass Failure Prediction Model to Flat Glass Using Finite-Element Modeling. Journal of Architectural Engineering. 2020 Jun 1;26(2):04020005.
Schultz, J.A., Knowles, J., and Morse, S., (2017). “Glass Failure Prediction Model for Out-of-Plane Bending of Waterjet-Drilled Holes,” Proceedings of the 39
th IABSE Symposium, International Associated of Bridge and Structural Engineers, Vancouver, Canada.
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SEAW Earthquake Engineering Committee - EEC White Paper 1-2019
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State and Chapter Committee Reports
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Contact the committee chair if you are interested in learning more or getting involved:
·
NCSEA Delegate – Chun Lau
·
Earthquake Engineering Committee – Kai Ki Mow
·
One of the current main focus and an important topic that the committee hopes to address in the upcoming year is the Increased Seismic Load in the newly published ASCE 7-16.
·
Members interested in EEC can find additional information regarding the meeting on the
SEAW website calendar or can contact the committee chair.
·
Outreach Committee - Gino Mazzotti
·
To receive emails about volunteer opportunities please sign up on the
SEAW Outreach page
·
Sustainability Committee – Chris Jeseritz
·
Refresher Committee – Mark Whiteley
·
Public Information Committee – Darrell Staaleson
·
Disaster Preparation/Response Committee – Joyce Lem
·
WABO Liaison Committee – Matt Snook
·
The SEAW/WABO Liaison committee is now available for questions from SEAW or WABO members. These questions can be about subjects addressed in the white papers already issued or general questions in the realm of structural engineering practice as it relates to interaction with the various building departments. Comments or questions can be emailed to
matts@cplinc.com
.
·
Technology Taskforce – Morgan Wiese
·
Membership Task Group – Jill Shuttleworth
·
Continuing Education Committee – Nathalie Boeholt
·
Scholarship Committee – Kevin Solberg
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In accordance with SEAW bylaws, membership applications are vetted by the executive director, granted probationary status by the chapter board, and posted for membership comment. Membership is considered accepted 30 days after posting if current year dues are paid and no member objections have been received.
Read More
New Members:
- Alex Quinn
- Solomon Schlenker
- Sandra Hyde
- Danya Mohr
- Xinyi Qian
- Wahid Rahmatzada
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Are you currently seeking employment as a structural engineer, senior manager, or a senior engineer technician? Check out our job board for current employment opportunities.
Learn More
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GLR Engineers is seeking applicants for a structural engineer position in our Spokane, WA office.
The applicant shall have a minimum of 2 years of relevant experience in the field of structural consulting design. Desired experience shall consist of working with multiple types of building materials, project types and the ability to contribute on multiple projects and deadlines. The selected applicant will be expected to produce structural calculations required for permit submittals, work with GLR’s in-house drafting department to produce construction drawings, coordinate with architectural clients and other design team members, and succeed in operating in a team environment. Knowledge of Revit modeling is a plus.
Applicant must be self-motivated with a strong drive to learn and expand their knowledge base.
GLR Engineers is a structural engineering firm with offices in downtown Boise, ID and Spokane, WA. We work on a variety of project types across the country and offer a diverse range of design experience on a week to week basis.
Work will be shared between both office locations, therefore web based communication skills are a must. We offer a competitive salary, benefits, and flexible work hours. Our goal is to provide a very comfortable, family friendly and enjoyable work atmosphere.
GLR Engineers is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.
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Located across the street from T-Mobile Park, Lund Opsahl is a growing structural engineering firm that provides a wide spectrum of services, including planning, design, seismic and damage assessments, upgrades, additions, tenant improvements, and construction support for a variety of new and existing building types in the Pacific Northwest. Our reputation as creative innovators and technical experts is built on responsive service, collaborative teamwork, and lasting relationships. Our firm's size offers early opportunities to work on challenging projects and encourages exciting career growth uncommon at larger firms, especially for the ambitious.
Currently, we are looking for Structural Engineers with minimum of three (3) years experience.
BENEFITS:
- Competitive benefits and salaries
- Health, Dental, and Vision Insurance/Health Savings Account
- Performance-based bonuses
- Flexible working hours
- 401(k) with matching contribution
- Profit Sharing Plan
- PTO, and holidays
- Group activities and team events
- In-House education programs
- Free parking
- (Did we say we're next to T-Mobile Park?!)
Please visit our
website
, for additional information and job descriptions for each of these positions. Inquires and resumes may be sent to
careers@lundopsahl.com
.
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Opportunities for Mid-level Design Engineer and Senior Project Manager
Seattle Structural is looking for qualified professionals to join our talented group practicing across a number of different industries. Seattle Structural offers an excellent opportunity to work on a variety of public and private institutional, healthcare, educational, and commercial projects both domestically and internationally. We offer a competitive salary and a relaxed, collaborative work environment. Benefits include medical insurance, transit reimbursement, and retirement matching. Seattle Structural is a firm that makes it easy to become personally invested in the achievements of your company.
Seattle
Structural is an Equal Opportunity Employer.
We are filling two positions. Candidates must meet the following requirements:
- Mid-level Designer: 5+ years’ experience.
- Senior Project Manager: 10+ years’ experience.
- BS or MS in Structural, Civil/Structural, or Architectural Engineering.
- Experience in steel and concrete buildings, lateral analysis, deep foundations, and marine projects are desired.
- Working knowledge of CAD and Revit preferred.
- Strong emphasis on client service.
- Excellent communication skills.
- Strong technical skills.
Please address inquiries to:
Howard Burton, President
Seattle Structural PS Inc.
3131 Elliott Ave STE 600A
Seattle, WA 98121
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MLA Engineering
has an exciting opportunity for an experienced
Structural Engineer
to join our consulting and design firm in Seattle, WA. Our diverse projects require critical thinking and creativity that is cultivated through our problem-solving approach in a small group environment.
We design new buildings and renovate existing structures in concrete, structural steel, masonry, and wood-framed structures. Our projects vary from small to large-size buildings and facilities. In addition to our building design and governmental projects, including county and state infrastructure, MLA specializes in the structural design of national and international zoos and aquariums.
Qualifications required for this
Structural Engineer
position include:
- Master’s Degree in Civil Engineering with Structural emphasis;
- Minimum of 3 years of experience working in a consulting design office;
- PE license preferred;
- Strong technical and analytical skills;
- Intuitive and practical;
- Practical use of REVIT as a design tool;
- Proficient with structural software such as RISA, ETABS, SAP2000;
- Excellent communication skills;
· Motivated to advance your effectiveness as an engineer.
Our work environment encourages creativity, teamwork, and professional growth. To learn more about MLA, please visit our website at:
www.mlaengineering.com
Location:
Convenient Downtown Seattle location with excellent public transit options; potential opportunities in New York City.
Benefits:
Top line Medical, Dental & Vision insurance,
generous
HRA account, 401K Plan w/4% matching, PTO & Sick LV, and professional training
Work Schedule
: Flexible
Salary:
Competitive + bonuses
Projects:
Diverse and often unique
MLA Engineering is an equal opportunity employer. We encourage women and minority candidates to apply.
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Position:
Regional Director
Company:
WoodWorks
Location:
Seattle or Portland (home based office)
Description & Details
- Are you tired of being stuck behind a desk?
- Do you want to help construct more sustainable cities?
WoodWorks is a recognized leader in providing project assistance related to non-residential and multi-family wood buildings. As a result of our continued success and positive impact in the industry, we’re adding new staff who want to be part of this exciting growth and help to guide the future of building in the U.S.
PRIMARY ROLE:
Woodworks is looking for a Regional Director (living in either the Seattle or Portland Metro area) to be the ‘go to’ resource for design professionals when they have questions about the use of wood in non-residential or multi-family buildings.
If you have the combination of well-developed technical knowledge, strong communication skills and an enthusiastic spirit, and you’re looking for something other than a billable consulting position or sales, this job offers a unique opportunity. In addition to an impressive compensation package, WoodWorks offers an enjoyable team atmosphere, the opportunity to become an expert in wood structures, schedule flexibility, and the chance for a rewarding career in the wood industry.
Click
here
for additional information and details on how to apply.
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June 23: Virtual June Dinner Meeting
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June 2020
Equilibrium Publication Team:
John Gunn, Editor
Darrell Staaleson, Past Editor
Zohrah Ali
Allison Tran
Blaine Sanchez
Lisette Terry
Shivang Gupta
Chase Young
Alisha Khadka
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COVID-19 is affecting all of us. In this time of social distancing, I encourage our members to interact with one another on our Facebook and LinkedIn pages. Stay safe and we will get through this together.
ACTION ITEMS:
1.
All members are welcome to submit articles to Equilibrium. To help you with your writer's block, here are a few topics: Write “Engineer's Notes from Afield,” summarize an interesting technical design you worked on, write about how you have been successful and increased productivity with an accounting procedure or marketing technique, write about your experiences doing community service, or share some construction site photos and talk about lessons learned.
2.
“A Picture and a Paragraph.” Please use the article submittal form provided and the picture needs a caption along with the names of the people in the photo.
3.
Please submit your articles in Word format using the Article Template. [Article Template]
CORRECTIONS:
None.
June Puzzle:
A Triscuit gets its name from the combination of what two words?
Clue: One word relates to how they are baked.
Bonus: What is triskaidekaphobia?
Look on the SEAW Facebook Page for a picture clue!
The first SEAW member to respond on our SEAW Facebook Page –
with a correct and full answer - will get a prize.
May Puzzle:
What is the name of the black hole at the center of the Milky Way galaxy?
Clue: It is named after a constellation.
Bonus: What is the name of the black hole at the center of the Andromeda galaxy?
Picture Clue:
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Answer:
The black hole at the center of the Milky Way galaxy is called Sagittarius A*. The one at the center of the Andromeda galaxy is known just as P2.
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Structural Engineers Association of Washington
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