Paul Dannels FAIA

In his role at SDI Structures, Paul conceives innovative structural solutions for buildings on behalf of both aspiring and accomplished architects. His many clients value his ability to quickly grasp complex architectural intentions and effectively render them in structural form. His designs have earned four IDEAS2 Awards from the American Institute of Steel Construction, the industry’s highest engineering honor for buildings constructed with steel. 

Paul served as the 2014 President for AIA Michigan. He has taught at the University of Detroit and Lawrence Technological University. Paul grew up in western New York, where as a teenager grand buildings like the Buffalo City Hall and Buffalo State Hospital captured his imagination. Prior to forming SDI structure he served as a construction engineer in remote northern Michigan.

  • Eli and Edythe Broad Art Museum, Michigan State University

  • Center Court at Creekside, Greenbrier Resort

  • Lamar Corporate Headquarters

  • Robert B Aikens Commons, University of Michigan

  • Oakland Center, Oakland University

  • Gilbert Pavilion, Michigan State University


Anders Sjogren, PE

Anders is a leader in the planning and engineering of collegiate athletics projects, as well as higher education, K-12, and healthcare facilties. He has developed close working relationships with educational institutions he has served, and has been instrumental in the development and implementation of innovative BIM practices, particularly in the areas of structural steel procurement, fabrication, and erection.

At SDI he directs BIM standards and documentation standards and maintains SDI's leadership in technology and digital communications.

Anders came to SDI following three years of service to communities in India.

  • Michigan Stadium Skybox Expansion, University of Michigan

  • Campus Crossroads Stadium & Academic Complex, University of Notre Dame

  • Jenks Public Schools Bond Program, Jenks OK

  • Spartan Stadium North Endzone Expansion, Michigan State University

  • Compton Ice Arena, University of Notre Dame

  • Lynah Ice Rink, Cornell University


Peter Heeringa, PE SE

Peter brings exceptional insights on academic and institutional structures gained from project experience throughout the United States and the Middle East. He enjoys working closely with team members to develop efficient and constructable designs while promoting the vision of the architect and owner.

At SDI Peter is responsible for engineering and analysis standards, maintaining the office commitment to code development and emerging construction technologies.

Peter's service at SDI represents a return to Ann Arbor with his family following, work experience in Washington DC.

  • Ames Hall, George Washington University

  • Brush Park, City Modern Development, Detroit MI

  • Campus Crossroads Stadium & Academic Complex, University of Notre Dame

  • Munger Hall, University of Michigan

  • National Fire Research Laboratory

  • Joyce Center Renovations, University of Notre Dame