Rocks Roads Ripples N'At:
Pittsburgh's Civil Engineering News Blog
By Greg Holbrook, EIT
Greg Nault, PE, SE, a representative and engineer from Ductal Engineering, a component of LafargeHolcim, presented to the Pittsburgh SEI Chapter last month on Ultra-High Performance Concrete (UHPC), most specifically it’s applications in Bridge Structures. He discussed many of the advantages and disadvantages of the material, as well as best practices and applications.
One of the most notable differences between conventional concrete and UHPC is the compressive strength. UHPC has a capacity upward of 25,000 psi compared to a range of 4,000 – 6,000 psi for conventional concrete. UHPC also has post-cracking tensile strength of 1,200 psi compared to 0 psi for conventional. In addition to holding higher loads, this is also a very useful feature to consider for accelerated construction - as typical design strengths are achieved very quickly with some products reaching 14,000 psi compressive strengths in as little as 12 hours.
Another distinguishable advantage of the product is it’s durability due to a finer and denser pore structure as the cement hydrates. Its dense structure reduces permeability and potential corrosion of the reinforcement. Below is an image depicting two specimens, one of UHPC and one of conventional concrete, exposed to seawater in an abrasive environment for 10 months:
Another benefit of UHPC is a substantially reduced development length of reinforcement, which can be of great value in reducing the size of bridge joints. Additionally, this reduced development length can eliminate the need for hooked reinforcing bars in joints, which results in simpler detailing and easier construction methods. Typical joints and details for UHPC used in bridge joints are shown.
Due to its high compressive strength, UHPC structural components can be much smaller in size than their typical concrete (both precast or cast-in-place) counterparts. Here is a comparison of the different girders that can support the same loading:
While Ultra-High Performance Concrete does have many distinct advantages, it is important to account for some deterrents of the product. Most specifically the price of UHPC is substantially higher than conventional concrete in a direct volume comparison. However, it is important to note that less volume of UHPC is required for the same strength as typical concrete.
UHPC also requires batch mixing on-site and can only be done in small batches. Since it is a flowable material, it is necessary to be aware that large pours spanning long lengths of joints in bridge decks can create uplift pressure at the lower elevation points of the pour, which must be resisted by formwork. Specialty sub-contractors are typically necessary for this work.
The presentation served to bring awareness of Ultra-High Performance Concrete to structural engineers who may be considering this product as a potential option for upcoming projects. This is just an overview of some of the advantages and disadvantages of UHPC and it is important to contact vendors and engineers that are extremely knowledgeable in all the aspects of the product when determining its applicability for a project.
The Pittsburgh SEI Chapter is planning a presentation on the Accelerated Bridge Replacement of State Road 30 here in Pittsburgh, which used UHPC. This event will be held in the spring, and we encourage you to join us!
By Patt Sullivan, P.E., ASCE-Pittsburgh President
This past October, I represented the ASCE-Pittsburgh Section at the American Society of Civil Engineers (ASCE) National Convention in Portland, OR.
The Keynote Speaker for the event was Frans Johansson, international best-selling author of the book “The Medici Effect” and “Click Moment”. Mr. Johansson spent an hour discussing the importance of diversity as a key driver in domestic and global innovative success. Look for an article on Mr. Johanssons’ presentation in a future blog.
The conference began with an opening plenary session and concluded with a general closing session and luncheon; sandwiched in between were nine concurrent technical sessions, each consisting of four to six sub-sessions of consistent themes. The themes, similar to last year’s conference consisted of the following ways civil engineers can take steps to maximize taxpayer value while simultaneously elevating industry outcomes and the professional as a whole:
ASCE is also supporting two initiatives in 2016-2017. The first is the “Raise the Bar” initiative, which seeks to advance the profession and the public welfare by actively supporting the national movement to raise educational requirements for licensure of future professional engineers. More information about it can be reviewed at the following website: http://www.asce.org/raise_the_bar/.
The second initiative, the “Grand Challenge,” calls upon all civil engineers to solve this problem: “Investments needed to improve our infrastructure continue to increase well beyond available funding. Find methods to 1) Significantly enhance the performance and value of infrastructure projects over their life cycles by 2025 and 2) Foster the optimization of infrastructure investments for society”.
To address this, ASCE is asking civil engineers to do the following:
You can learn more at the following website: http://www.asce.org/grand-challenge/
The opening reception Wednesday evening featured the foods of Portland, an evening of networking and socializing, and a welcome from ASCE President Mark Woodson. The highlight of the evening was the premiere of the unedited version of the 45 minute movie produced by ASCE entitled “Dream Big.” The premiere of this movie is scheduled for February 17, 2017 in the Imax theatre at the Carnegie Science Center. To get excited about the future that our youth can bring to civil engineering and some of the spectacular projects we have constructed across the world, watch this two minute trailer: http://www.asce.org/dream-big/
Informational and project-related sessions attended during the three-day event explored topics such as
The ASCE Convention is the Society flagship membership event. It is the single annual opportunity for which the entire Society is represented together, and it reflects the diversity that ASCE encompasses. I was honored to represent our Section this year, and encourage you all to consider being a part of next year’s annual event in New Orleans on October 8th - 11th, 2017.
By Linda Kaplan, PE
“Raise the Bar” is one of three Strategic Initiatives set by the National office of the American Society of Civil Engineers (ASCE). According to National, “The Raise the Bar initiative seeks to ensure that those who practice engineering as licensed professionals (PEs) in the future have attained the body of knowledge necessary to protect the public health, safety, and welfare. Since entry into professional practice is regulated by state engineering licensure laws, the Raise the Bar initiative aims to amend state law so that additional education beyond the bachelor’s degree—a master’s degree or an equivalent 30 credits of graduate or upper-level undergraduate courses—is required of those who become licensed engineers in the future.”
The case for additional education requirements is strong and well represented by the following series of graphics:
Engineering used to be one of the most highly education intensive professions. However, over the past 100 years the engineering education requirements have been surpassed by those of other licensed professions. Many have expressed concern that increasing the education requirements will drive the “best and brightest” from choosing engineering as a profession. This is not the case in other licensed professions, and the fear is without factual support. In fact, the opposite effect may be seen: by “raising the bar,” engineering will gain prestige as a profession that clearly competes with medicine and law.
So why not just increase the credit hours required for the Bachelor’s Degree?
The total number of credit hours required for a degree is set by those outside of the engineering profession. State governments are often the decision making party, mandating a maximum number of credit hours for a degree in publicly funded universities – regardless of what that degree is in. To maintain enrollment, privately funded universities have followed the policy of the publicly funded universities, so the issue is universal. Additionally, the credit hours earned for an engineering Bachelor’s degree now have a higher percentage of non-technical content. While such non-technical content is essential to developing high quality engineering graduates able to advocate for and communicate their work to others, the technical content has diminished as a result. To protect the public, technical engineering education requirements that have been deleted in the baccalaureate degree must now be required in post-graduate education to earn the professional status of Professional Engineer (PE).
Pages in an engineering or building code are one example of how much the body of knowledge has expanded. New technology has provided more material for students to master.
Examples of technical knowledge that is often expected of entry level engineers today that wasn’t necessary in the past include:
These subjects are in addition to the core engineering mechanics foundation which we all know and love. Overall the profession has “more to know and less time to learn it.”
The process to update the licensure laws is long and takes many years to accomplish. No one with a current license, or even currently enrolled in an engineering education program, will be impacted by these proposed changes. The first step in this process is to build relationships with state government public policy makers and gain their support for the Raise the Bar initiative. Establishing a “licensing board liaison” within the state is one action that will enable efficient flow of information from professionals to those public policy makers who govern the professional practice requirements.
ASCE has identified a few states that have shown interest in moving forward to Raise the Bar. At this time, no legislation has been brought up for vote on the initiative. Currently, the focus is on New Jersey where legislation is anticipated within a couple years. ASCE estimates that 5 years may pass before the first state laws change, and another 3-5 after that before the second state changes. Research reveals that when 7 states adopt a change, an initiative has reached “critical mass”, and other states start to follow more quickly. Estimates on getting to critical mass for Raise the Bar are around 15 years.
The Raise the Bar initiative is about the future. Society will continue to expect more from its engineers and we need to be prepared to provide it. The current engineering education has served us well, and no one is questioning the ability of currently licensed professionals to perform their jobs well. But we recognize that the world and industry are changing and that future engineers need to be equipped with a larger Body of Knowledge to continue to serve at the same level of expertise and public safety, and cost-effectiveness that we presently achieve.
On September 9 & 10, 2016, Pittsburgh Section Members Azekah Griffiths, P.E. of FZA, LLC and Linda Kaplan, P.E. of TRC attended the Raise the Bar Advocate/Champion Workshop in St Louis, Missouri. Twenty ASCE members attended from the contiguous United States. The objective of the workshop was to train attendees on how to communicate the Raise the Bar for Engineering initiative in their home state to ensure that accurate information is provided both to ASCE members, public policy makers and other interested parties.
ASCE has many good resources available in a Raise the Bar tool kit. To learn more or contribute your expertise, contact Azekah and Linda, both of whom are familiar with these resources and are available to answer additional questions about Raise the Bar. The section is actively seeking interested parties to help move this initiative forward.
By Sam Shamsi, PhD, PE,
Located in Richland Township, PA (about 20 miles north of Pittsburgh) and home to the Falk School of Sustainability, Chatham University's Eden Hall Campus is far more than a 388-acre plot of land. It's the embodiment of a commitment Chatham makes every day to support sustainability and environmental education. At Eden Hall, the campus doesn't just house classrooms, it is the classroom. The 20- to 25-year development plan for the residential campus aims to:
On October 24, 2016 the Section’s Continuing Education Committee provided an opportunity to see these sustainable facilities. As the Section’s Continuing Education Committee Chair and a Director, I attended the event along with dozens of other people. The event began with a guided walking tour of the campus led by the Dean of Falk School of Sustainability, Dr. Peter Walker himself.
Eden Hall’s Stormwater Management is especially unique, and earned the ASCE-Pittsburgh’s 2015 Sustainability Award in the annual Engineers Week Awards Banquet held on February 20, 2016.
Eden Hall’s Stormwater is managed by:
The collected rainwater is then utilized for crop irrigation. Eden Hall also treats wastewater onsite through a six-step process that mimics nature. The system can handle up to 6,000 gallons each day. Read more here.
Following the tour, I delivered a lecture on Green Stormwater Infrastructure. The attendees and I discussed both the opportunities and challenges of green infrastructure, and I related them to region’s interest in using green solutions for solving local wet weather problems such as combined sewer overflows (CSOs) and flooding. Our first canon of ASCE’s Code of Ethics requires compliance with the principles of sustainable development. I encouraged the audience to share their green infrastructure concerns, and challenged the civil engineers to address those issues. Civil Engineers, after all, are the best problem solvers. They believe every challenge is an opportunity in disguise.
The lecture was followed by a panel discussion. The expert panel included the following members:
The lively panel discussion conducted by these distinguished members included a variety of perspectives on sustainable development.
The panel discussion was followed by audience questions, which led to a thought-provoking discussion among attendees and panel members. The event was concluded by a buffet dinner prepared onsite by Eden Hall’s chef Chris using ingredients from Eden Hall’s own certified organic farm. No disposable tableware were used. In fact, a disposable plastic water bottle I brought with me magically disappeared somewhere!
For questions or comments, please contact event organizer and chair of Continuing Education committee Sam Shamsi at email@example.com
By Vishal Patel, Edited by Brian Heinzl
More than 30 ASCE members and guests gathered at the Bettis Grille Restaurant on Friday, September 23rd for a ASCE Pittsburgh Section Geo-Institute (GI) Chapter meeting. As part of the meeting, Dr. Timothy D. Stark, Ph.D., P.E., D.GE., F.ASCE, presented the lecture “Stability of Natural and Man-made Slopes.” The presentation focused on the March 22, 2014 Landslide near Oso, Washington, discussing the geotechnical aspects of the slide and its potential triggers.
This major and tragic landslide exhibited some interesting geo-mechanical behavior, including a runout of over one mile from the base of the slope that devastated the adjacent Steelhead Haven Community. The presentation focused on the events that occurred before the landslide, the triggering of the landslide, and the initiation and run out of the landslide. Dr. Stark focused on the geotechnical investigation (field investigation, lab testing, and analysis) after the landslide to determine the triggering mechanism of the 2014 landslide, as well as the shear strength and dynamic analysis used to explain the flow slide volume and runout distance. The results provided a better understanding of risk and hazard assessment of this landslide.
The Pittsburgh Section GI was also honored to have Mr. Brad Keelor, the National Director of the Geo-Institute, attend our meeting. Mr. Keelor introduced himself to the audience and provided brief remarks regarding goals being pursued at the national level. We appreciate the interest and support of National GI members at our local functions. The Geo-Institute Chapter provided 1.0 PDH for the presentation along with great venue for social hour.
Following the conclusion of the presentation and network-building hour at Bettis Grille, many attendees including Dr. Stark and his wife were able to attend the YMF’s Pirate tailgate and the baseball game. The following day Dr. Stark acknowledged our hospitality by sending a note: “Thanks for a really enjoyable day, which was capped off by a "Walk-Off Win" in the 11th!!!! Great game!!!”
A special thanks goes out to all of the GI and YMF committee members for making this a successful event.
By Scott Duda, PE (YMF Budget Chair)
On August 5-7, 2016, ASCE Headquarters in Reston, VA hosted the 2016 Younger Member Leadership Symposium (YMLS). Younger Member Forum (YMF) members Azekah Giffiths, PE, Emily Eichner (YMF Social Co-Chair), and I had the opportunity to represent the ASCE Pittsburgh Section at this year’s event. The conference was organized by the ASCE Committee on Younger Members (CYM), and it brought together over 40 YMF members from across the U.S.
Over the course of the weekend, attendees participated in workshops designed to improve leadership abilities, refine communication skills, and identify areas for further personal growth and development. Attendees were also given the opportunity to network with ASCE members from other regions of the country. We exchange of ideas for improving individual chapters and discussed solutions for common issues faced by civil engineers every day.
One focal point of the two-day symposium was identifying different types of personal communication styles, both within ourselves and within others. No two individuals communicate ideas the same way, and a clear set of directions for one person may be a confusing jumble of nonsense to another. The types of communication that truly resonate with people are governed by their personality type. By learning to identify an individual’s unique personal style, one is able to determine the most effective means of communicating an idea among any audience.
In general, an individual’s personality style may be characterized as a blend of four broad behavioral types:
Each individual’s unique combination of behavioral types is also known as social style. This framework for classifying individual personalities was pioneered in the 1960’s by psychological researchers David W. Merrill and Roger H. Reid. You can learn more about their work here.
While an individual’s social style tends to favor one or two of these behavioral types over the others, all four may come into play when describing someone’s unique character. Identifying which behavioral types best describe a person requires careful observation of the person’s typical patterns and means of communicating. Once an individual’s behavioral type has been identified, one is able to tailor their message to meet their specific needs, improving the overall effectiveness of communication. Learning how to effectively communicate with people from a wide range of different social styles is an essential skill for leaders of all types, especially civil engineers.
During the training, I learned that my social style can be classified as Analytical-Driver. I tend to prefer systematic and precise communication, and I favor facts over feelings when making decisions. In order to communicate more effectively with my Expressive-Analytical co-workers, I can focus on developing a relationship with them, presenting them with ample data to support my statements, and providing testimony from others to further bolster my assertions.
In addition to learning about communication and personality styles, symposium attendees also worked on improving presentation and speaking skills, developing a unique personal vision, and managing change in the workplace effectively.
YMLS is held annually at ASCE Headquarters in Reston, VA. You can read more about Pittsburgh’s participation in the event last year here.
Published in Pittsburgh Post Gazette
The Pittsburgh region recently experienced several intense rainfall events that caused flooding in many areas. In neighborhoods like Whitehall, we have seen this happen “too many times.” In Connellsville, flooding was so extreme the school year had to be delayed.
The primary cause of flooding is our aging infrastructure, resulting in decreased abilities to respond to intense rainfalls. Our combined storm and sanitary infrastructure was built over 50 years ago. Unfortunately, clogged and undersized storm drains are all too common in our region.
Storm and sanitary infrastructure is located underground, out of sight and out of mind, not easily showing its age. These systems must work 24 hours a day, seven days a week, 365 days a year to bring clean, safe water to us and take away used water to be treated before it is safely released back into the environment. What happens when these systems fail to keep up with our needs?
Imagine a day without water. You would not be able to provide your dog with water, or make your coffee. Forget about teeth brushing, flushing your toilet or taking a shower. Nonresidential enterprises, from schools to corporations, breweries to hospitals, factories to power plants, car washes to aquariums, also need water.
The Environmental and Water Resources Institute of the American Society of Civil Engineers, Pittsburgh Section, has joined the nationwide effort “Imagine a Day Without Water.” Hundreds of organizations across the country, including water agencies, mayors, engineers, schools and business and labor leaders are joining forces today to raise public awareness and spark action to solve water and wastewater problems.
Without your voice advocating this work, our water systems will continue to be ignored. Please visit www.thunderclap.it/projects/45997-imagine-a-day-without-water to sign the petition. Demand investment in water systems. Pittsburghers can imagine a day without water if needed, but should never have to live it.
Environmental and Water Resources Institute
American Society of Civil Engineers, Pittsburgh Section
From ASCE News
ASCE has honored Angela M. Mayer, EIT, A.M. ASCE with the 2016 Edmund Friedman Young Engineer Award for Professional Achievement. She is recognized for professional achievement in service to the advancement of the profession, evidence of technical competence, high character and integrity, and contributions to public service outside their careers.
Mayer was the 2015 Pittsburgh Section Young Engineer of the Year and was nominated for the 2016 ASCE Eastern Regional YMC Outstanding Young Engineer in the Private Sector Award.
She serves as the director of the Pittsburgh Section, supporting numerous committees including the Diversity and Inclusion Committee and the Survey Committee. Furthermore, Mayer served as the point of contact and national judge for the National Concrete Canoe Contest at the University of Pittsburgh, Johnstown in 2014.
Mayer is a graduate of the Leadership Development Initiative and an active member of Toastmasters International. Mayer also volunteered to be a civil engineer role model as part of Wow! That’s Engineering! For Girls and Parents, an outreach event for middle school girls held by the Society of Women Engineers.
The Edmund Friedman Young Engineer Award for Professional Achievement is made to younger members of ASCE (35 or younger) who are judged to have attained significant professional achievements by the degree to which they have served to advance the profession; exhibited technical competence, high character, and integrity; developed improved member attitudes toward the profession; and contributed to public service outside their professional careers.
By ASCE Awards Committee
Congratulations to Timothy O’Loughlin, P.E., ASCE-Pittsburgh’s 2015 Young Government Engineer of the Year. Timothy has demonstrated the depth of experience and knowledge required to successfully complete a variety of significant government-based civil engineering projects in the Pittsburgh region. Timothy began his career with the Pittsburgh District, U.S. Army Corps of Engineers as an intern in 2008 following his graduation from Penn State University. He quickly moved into positions of leadership and was soon assigned Senior Design Engineer for the Monongahela River Charleroi Lock chambers. This project consisted of constructing a new gated dam on the Monongahela River at Braddock, PA, and constructing two new locks at Charleroi, demolishing the old Locks and Dam No. 3 at Elizabeth, PA. For the project, Timothy also had to manage utility relocations, dredging of the riverbed and subsequently raising the Braddock pool five feet, and lowering the pool below Charleroi three feet to maintain navigation.
Timothy obtained his P.E. license in 2013, and was the Project Engineer for the completion of the River Chamber. As Project Engineer, he coordinated the development of plans and specifications for the new 84’x720’ river chamber and over twenty monoliths for the dam, among other key features. The overall design package consisted of 700 drawings, 3,000 pages of specifications, and 5,500 pages for the design report. Timothy coordinated with the eight separate Corps of Engineer Districts that were involved in this monumental design effort with much of the design coming from the Pittsburgh District. Timothy’s work with Project Management, Construction, Environmental, Real Estate, Contracting, and the Office of Council was essential to the successful award of the Base Contract and Awardable Options totaling $241 million.
In addition to performing his role a Project Engineer, Timothy served as the Senior Structural Engineer responsible for the design of drilled shaft foundations, monolith wall reinforcement, high mast light anchorages, and quality control for several design features.
Congratulations to the Pittsburgh Water & Sewer Authority (PWSA), recipient of the 2015 ASCE-Pittsburgh Merit Award.
PWSA’s Department of Sustainability works to foster an authority-wide culture of sustainability with respect to environmental enhancement, economic development and civic engagement. The PWSA strives to be a world-class utility and set the benchmark for sustainability in the industry.
As a water and wastewater utility, PWSA employees are dedicated stewards of one of the most valuable resources on the planet. PWSA’s Green Infrastructure (GI) Program is a regional leader in efforts to improve the water quality of our rivers, streams and tributaries. Green infrastructure can be used to meet water quality standards and save ratepayers money while providing social, economic and environmental benefits. Through the GI Program, the PWSA is committed to making green infrastructure part of their solution to improve water quality affected by stormwater runoff. The GI team focuses on planning and implementing stormwater management projects in the places where they can provide the most benefits.
The PWSA Green Infrastructure Grant Program provides grants of $5,000 - $50,000 to non-profit organizations, community and civic groups, and property owners for projects in the City that advance the objective of attaining Clean Water Act compliance for water quality. The grants support local, grassroots efforts that employ green infrastructure practices to improve water quality, enhance conservation, restore habitat, stimulate economic growth, and educate people about stormwater issues and associated stewardship actions. Find out more information about PWSA’s grant program.