Continuing Education

Night School 17

Design of Curved Members / Facade Attachments

Design of Curved Members

Although the structural behavior of curved members can be much different from their straight counterparts, the Design Guide provides recommendations for using the AISC Specification equations for straight members to design curved members. This “equivalent straight member” method will allow the use of existing commercial software for curved member design by modifying effective length factors and lateral-torsional buckling modification factors to account for the curvature.

Guidance for Supporting Facades on Steel-Framed Buildings

The attachments of modern facade systems to the primary building structure can present some of the most difficult challenges on any building.  It involves a number of different parties—the owner, the architect, the structural engineer, the building envelope consultant, and many different contractors—coming together to create a facade that achieves aesthetic, thermal, air infiltration, and moisture objectives.  This course will provide guidance for practicing structural engineers, architects, and contractors on how to navigate this aspect of a building’s design that is vitally important but often given less attention than it deserves.  

  • Date: 6/18/18 - 8/6/18
  • Duration: 1.5 hours per session
  • Location: Night School
  • Substitutions and Cancellations: Substitutions may be made at any time. Cancellations received 1-3 days prior to the webinar will be charged a $50 service charge. Cancellations and no shows the day of the webinar session will not receive a refund.
  • Connection Instructions: Upon registration, you will receive a confirmation email containing your receipt, a link to access the webinar, dial-in audio instructions, and a link to a PDF handout of slides.

Sessions

Presented by Bo Dowswell, PhD, PE

This session presents general information on curved members including an overview to the coming soon AISC Design Guide.  The session will introduce the attendees to bending geometries, bending processes, and considerations for design for bending: curving mechanics, fracture during bending and distortion.  Additional design considerations, tolerances contract documents and more, are also discussed.

Presented by Bo Dowswell, PhD, PE

This session addresses the treatment vertically-curved members.  Topics include axial strength, flexural strength, combined axial and flexural loads, local strength and connections

Presented by Bo Dowswell, PhD, PE

The session addressses the treatment of horizontally-curved members. Topics include: flexural strength, torsional strength, combined flexural and torsional loads, serviceability, local strength and connections.

 

Presented by Bo Dowswell, PhD, PE

This session will present a design example for vertically-curved members.  In addition to demonstration the design of the member, the example will address the design of the connection.  Then, the session will present a design example for horizontally-curved members. In addition to demonstration the design of the member, the example will address the design of the connection. 

Session 5: Facade Fundamentals

Presented by Alec Zimmer, PE, SECB

Attaching modern facades to buildings requires an understanding of how facade systems perform—from moisture and thermal performance to structural performance.  Developing successful facade attachments requires consensus among a number of different parties about the objectives for the facade system.  The project team needs to establish who is responsible for various portions of the design and also establish the criteria against which the system’s performance will be compared.  In this session, we will explore these issues in depth to set projects up for success.

This session addresses the following topics:

  • Fundamentals of Facade Performance
  • Design Criteria
  • Design and Execution Responsibilities
  • Thermal Separations
  • Accommodating Tolerances

Session 6: Facade Attachments, Part 1

Presented by Alec Zimmer, PE, SECB

Every type of facade system presents its own challenges for the design team:  where and how are the gravity and lateral loads supported?  How much movement can the facade system accommodate?  What is the jointing pattern?  In this session, we will explore masonry cavity wall systems, aluminum-glass curtain wall systems and panelized systems such as precast concrete panels or prefabricated metal-framed panels with masonry or glass-fiber reinforced concrete facing to help answer these questions.

This session will presents the following topics:

  • Traditional Masonry Cavity Walls
  • Aluminum-Glass Curtain Walls
  • Panelized Facade Systems
  • Sizing Joints for Vertical Movement

Session 7: Facade Attachments, Part 2

Presented by Alec Zimmer, PE, SECB

Many multi-story structural-steel-framed buildings support the facade’s gravity and lateral loads from the spandrel beams or the slab edges.  In this session, we will examine the pros and cons of connections to spandrel beams and slab edges along with methods for designing these elements for facade loads.  The session will include a series of example problems that address issues of strength and stiffness.

This session will presents the following topics:

  • Design of Steel-Framed Slab Edges for Facade Attachments
  • Design of Steel Spandrel Beams
  • Cladding Supports Away From Floors
Presented by James Parker, SE

When buildings sway under wind and seismic loads, the facade systems must accommodate interstory drifts between the building’s floor levels.  Finding ways to accommodate these drifts through the height of the building, particularly at corners and at the ground story, can be challenging.  In this session, we will consider ways to detail facade attachments to accommodate a building’s lateral drifts.

Speakers

Bo Dowswell

Bo Dowswell

Principal of ARC International, an engineering firm specializing in research and consulting for steel structures.

Alec Zimmer

Alec Zimmer

Alec S. Zimmer is a Senior Project Manager in Simpson Gumpertz & Heger’s Waltham, MA, office.

James Parker

James Parker

James C. Parker is a Senior Principal at Simpson Gumpertz & Heger (SGH).

Registration

Price Info

Individual Live Sessions

$185  Member
$285  Non-member
$155  Student/Faculty
$155  Government Employee

Prices are per webinar.  Registration includes certificates for an unlimited number of people at one connection site.

Register
4-Session Package (Facade Attachments Sessions Only)

$250  Member
$450  Non-member
$200  Student/Faculty
$250  Government Employee

Prices include all 4 Facade Attachments webinars.  Registration includes a certificate for the registrant only.

Register 
Substitutions and Cancellations

Substitutions may be made at any time. Cancellations received 1-3 days prior to the webinar will be charged a $50 service charge. Cancellations and no shows the day of the webinar session will not receive a refund.

 

Quiz and Attendance records

Quiz Scores and Attendance

View attendance and quiz records for 8-session package registrants of Night School 17.

Quiz Answers

View Answers to Night School 17 Quizzes.

Quiz 1: 1. e, 2. f, 3. a, 4. f, 5. c, 6. c, 7. c, 8. f, 9. a, 10. b Quiz PDF
Quiz 2: 1. d, 2. b, 3. d, 4. a, 5. a, 6. h, 7. a, 8. d, 9. b, 10. f Quiz PDF
Quiz 3: 1. d, 2. b, 3. d, 4. a, 5. e, 6. b, 7. e, 8. b, 9. e, 10. e  Quiz PDF
Quiz 4: 1. b, 2. a, 3. b, 4. d, 5. c, 6. d, 7. a, 8. c, 9. b, 10. a Quiz PDF
Quiz 5: 1. c, 2. d, 3. a, 4. b, 5. d, 6. c, 7. a, 8. b, 9. a, 10. a Quiz PDF
Quiz 6: 1.b, 2. c, 3. c, 4. d, 5. b, 6. d, 7. b, 8. c, 9. b, 10. b Quiz PDF