Calendar

Schedule of Upcoming Meetings:

Top 10 Things to Know About HSS Connections
Presented by Brad Fletcher, S.E.

March 4, 2020 – 5:30 PM
Baci Grill, 134 Berlin Rd, Cromwell, CT

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Connections are often the most overlooked part of structural design.  We as structural engineers are educated in school of the many ways to analyze structural systems and to design beams and columns.  But for many reasons, little time is spent on actual connection design.  Perhaps in graduate school we have the chance to take an advance course on connection design, but often we are not truly exposed to the subtleties and complexities of steel connections until we are on the job, where, too often, we learn the biases and bad habits of our mentors. 

In addition, most engineers in the US and Canada delegate the responsibility of connection design to the project’s fabricator.  While this can be a good way to get cost effective connections, the Engineer of Record (EOR) often provides member designs that make it challenging for the fabricator’s engineer to get the connections to work for the loads given without reinforcing the members or choosing a costly connection type.  This is especially true for connections that involve Hollow Structural Sections (HSS).

HSS connections have often been a source of additional mystery for even the most experienced engineers.  For many years, there were not many resources here in the US that we as engineers could turn to for guidance on HSS connections.  In the mid to late 1990’s, this started to change and over the past 20 years many excellent resources have evolved, especially with the inclusion of Chapter K in AISC 360.

This 1 hour presentation attempts to de-mystify HSS connections.  While this is not a “how-to” guide, the presentation will highlight areas of HSS connection design that are often overlooked or misunderstood.  Connection types that are addressed include tension, bracing, shear, moment and truss connections.    Attendees will gain an appreciation of the similarities and the subtle differences between HSS connections and other types of connections.

Also addressed will be the effect certain design decisions have on fabrication and the cost of connections. 

Presenter Bio: Brad Fletcher, S.E., is the senior sales engineer at Atlas Tube. In this role, Brad leverages his 28 years of experience in engineering design and the steel industry to provide technical expertise on the use of steel hollow structural sections (HSS) to design engineers and architects.

A registered structural engineer in the state of Illinois, Brad has held senior positions at leading architecture and engineering firms, Skidmore, Owings & Merrill; Sargent & Lundy; and Halvorson and Partners. For the past fourteen years, Brad has focused his efforts on serving as a liaison between structural designers and the steel industry.

Brad holds a BSCE and MSCE from Purdue University. He is active in many industry groups, including AISC, CISC, CSA, STI and ASTM International.

Past Meetings:

Holiday Party: Case Studies in Foundation Failures Presented by Theodore Von Rosenvinge IV, PE, DGE, 5:30 PM, New Haven Lawn Club

November 6, 2019 : Engineering Ethics Presented by Donald W. Doeg of Updike, Kelley & Spellacy
5:30 PM Baci Grill, Cromwell, CT

October 2, 2019: Effective Use of the SDI Diaphragm Design Manual, presented by Michael Martignetti of Canam
5:30 PM Baci Grill, Cromwell, CT

September 11, 2019: NON-DESTRUCTIVE EVALUATION (NDE) A CONSIDERED APPROACH TO REPAIR AND MAINTENANCE
In association with ICRI and presented by Charles Bransby-Zachary 5:30 PM Best Western Plus North Haven

May 1, 2019: Harnessing the Power of AISC Design Guides 
Presented by Larry Kruth, P.E. 5:30 PM Baci Grill

April 3, 2019: Floodplain Design, Construction and Impacts on Flood Insurance, presented by Brian Newman  5:30 PM,
Baci Grill

March 6, 2019: Techniques, Materials and Design Considerations for Strengthening & Repair of Existing Concrete Structures, presented  by Sanjiv Inamdar 5:30 PM, Baci Grill

January 9, 2019: Structural Innovation and Disruption Using Ground Improvement and Other Geotechnical Elements, presented by Rimas Veitas, P.E.  5:30 PM, Casa Mia at The Hawthorne

December 12, 2018: Mass Timber: A New Paradigm, presented by Tanya Luthi.
5:30 PM, New Haven Lawn Club.

November 7, 2018: Development Along Old Party Walls presented by Dan Eschenasy, P.E., SECB, F.SEI.  5:30 PM, Baci Grill.

October 9, 2018: Forensic Geology, Concrete Petrography & Interesting Case Studies Including an Ancient Mystery  with Scott Wolter, PG,  5:30 PM, Courtyard by Marriott.

June 7, 2018:  In the Footsteps of Vitruvius – seminar and dinner meeting with Matthew Bronski, P.E., FAAR,  5:30 PM, Best Western PLUS, 201 Washington Avenue ,North Haven, CT 06473

April 18, 2018: Frame for Success — Avoid Callbacks! seminar and dinner meeting with Robert Kuserk,  5:30 PM, Courtyard Marriott, 4 Sebether Drive, Cromwell, CT.

February 7, 2018: Architecturally Exposed Structural Steel seminar and dinner meeting with Adam Boswell, P.E. 5:30 PM, Best Western PLUS North Haven, 201 Washington Ave., North Haven, CT 06473

December 5, 2017: SEC Holiday Party – The Structure of Design presented by Les Robertson.  New Haven Lawn Club, 193 Whitney Ave, New Haven, CT.

November 8, 2017: SEC Seminar and Dinner Meeting – The Good & Bad with Delegated Design, Presenter: Kevin Chamberlain, P.E., SECB – C.E.O. and Principal, DeStefano & Chamberlain, Inc. 5:30 PM – 9:00 PM, Radisson Hotel Cromwell, 100 Berlin Road, Cromwell, CT

April 5, 2017: SEC Seminar and Dinner Meeting – Benefits of Unmanned Aerial Systems to Forensic Engineering, Presenter: Bruce Barnes, MS PE – VP – East (Structural) Envista Forensics
5:30 PM – 9:00 PM, Radisson Hotel Cromwell, 100 Berlin Road, Cromwell, CT

February 1, 2017: SEC Seminar and Dinner Meeting – Structural Provisions of the New Code, Presenter: Mr. Thomas DiBlasi, P.E., SECB; 5:30 – 8:30 PM, Best Western Plus, North Haven.

October 5, 2016: 7:30 AM – 1:30 PM, Half-day Designing Masonry Seminar with David Biggs, PE, SE., Courtyard Marriott, Cromwell.

September 7, 2016: Dinner Meeting: Assessment of Fire Damaged Structures with Michael Cuevas, PE, Radisson Hotel, Cromwell, CT.

May 11, 2016: Joint International Concrete Repair Institute/SEC Dinner Meeting: Shoring Up The Hynes, From Decision to Complex Execution, Best Western, New Haven.

March 2, 2016 Cross Laminated Timber Common Design Challenges & Exposing the Potential of Heavy Timber Construction, Presenter: Marc Rivard, P.E., New England Regional Director, Wood Works – Wood Product Council.

February 3, 2016, FM Global – Issues for Structural Engineers, Presenter: Daniel G. Howell, P.E., Senior Engineer – FM Global

Dec 2 2015 SEC Seminar and Holiday Meeting: Louisiana State Museum and Sports Hall of Fame, Presenter: Mr. David Kufferman, P.E., 5:30 PM, New Haven Lawn Club.

November 9, 2015: Engineering Ethics: Back to the Future, Presenter: Paul Brady, Executive Director, ACEC, CSPE, 5:30 PM, Courtyard Marriott, Cromwell, CT.

October 7, 2015: Corrosion Mitigation In Older Building Envelopes, Presenter: Gina Crevello, Principal – e2chem Consultants, LLC,

May 6, 2015: Condition Assessment of Old Stone Retaining Walls with Dan Eschenasy.

April 9, 2015: Lateral Load Design Using IBC and ASCE 7-10 Seminar with Ed Huston, PE, SE.

March 4, 2015: Ethics and Risk Management Seminar with Scott Smith, Smith Brothers USA.

February 11, 2015: Cinder Concrete Floor Systems with Ciro Cuono, PE, LEED AP; 5:30 PM, Best Western Plus, North Haven.

December 3, 2014: Holiday Party: Rewards of Failure: Changes in Codes, Standards and Practices Resulting from Structural Failures, Dr. Robert Ratay.

November 12, 2014: Engineering Heavy Timber with Jim DeStefano, PE, 5:30 PM, Four Points Sheraton, Meriden.

October 8, 2014: Corrosion Mitigation in Reinforced Concrete Structures, Erik Thorpe, Vector Corrosion Technologies. 5:30 PM, Courtyard Marriott, Cromwell.

September 10, 2014: Joint Meeting with ICRI: “What’s Wrong with my Precast Concrete Garage”? – Identifying and Avoiding Failures Due to Vehicular Fatigue Loading with Lawrence Keenan, AIA, PE.

May 14, 2014: Structural Renovations of Historic Structural Systems with Ciro Cuono, PE, Cuono Engineering, PLLC. 5:30 PM, Best Western North Haven.

April 9, 2014: Design and Specification of Curved Glulam Beams, an SER’s Responsibility vs. Delegated Design with Russell Learned, Centerbrook Architects and Rik Vandermeulen, Unalam.

March 12, 2014: Shaft Wall System Structural Issues with Wayne Jenkins, USG architectural Services

February 12, 2014: Topics in Snow Load Design seminar and dinner meeting with Michael O’Rourke, PhD, PE. 5:30 PM, Four Points Sheraton, Meriden.

December 11, 2013: SEC Holiday Party, Yale University Sterling Power Plant: Presenter: Mr. Robert Charney

November 13, 2013: Helical Screw Anchors In Soil Foundations with Pat Haffert, Danbro Distributors, 5:30 PM, Courtyard Marriott, Cromwell.

October 17, 2013: Ethics Seminar and dinner meeting with Don Doeg, PE, Esq. 5:30 PM, Four Points by Sheraton.

September 11, 2013: Industrial Rope Access seminar and dinner meeting, 5:30 PM, at the North Haven Holiday Inn.

A Coalition of the American Council of Engineering Companies of Connecticut