Robert Hällmark
Robert Hällmark

Robert Hällmark

Researcher, 1:stReaserch ingeneer
Luleå University of Technology
Structural Engineering
Structural and Fire Engineering
Department of Civil, Environmental and Natural Resources Engineering

At the moment, I´m working both as a part time PhD Student at LTU (50%) and as a Technical Steel-specialist at Trafikverket – The Swedish Transport Administration (50%). I have been working with steel- and composite structures during the last 10 years, mainly focused on bridges. I have spent seven years as a bridge designer and the last years as a steel specialist on the client side. Today, my research is focused on composite bridges in general and the steel parts in particular. During the time period 2016-2018, I will work part time at LTU with main focus on the European R&D-project Prolife (Prolonging life time of old steel and concrete-steel bridges), which is coordinated by LTU.

Research interest

  • Steel- and composite bridges

  • Composite bridges with prefabricated deck element

  • Steel fatigue

  • Shear connections into Composite Structures

  • Integral abutment bridges

  • Strengthening of steel- and composite bridges

  • Development of Codes and Standards for steel- and composite structures

Professional Expertise

  • Design of steel- and composite structures
  • Assessment of steel- and composite structures
  • Prefab Rica Celebration of bridges
  • Steel fatigue
  • Execution standars for steel structures
  • Finite element modeling

Activities and Projects

Membership in professional organization

  • IABSE-member
  • Technical Secretary of the CEN SC4 WG 03, Composite Bridges


Article in journal

Post-installed shear connectors (2019)

Fatigue push-out tests of coiled spring pins
Hällmark. R, Collin. P, Hicks. S
Journal of constructional steel research, Vol. 153, s. 298-309
Article in journal

Strengthening Bridges with Postinstalled Coiled Spring Pin Shear Connectors (2019)

State-of-the-Art Review
Hällmark. R, Jackson. P, Collin. P, White. H
Practice Periodical on Structural Design and Construction, Vol. 24, nr. 1
Article in journal

Post-Installed Shear Connectors (2018)

Monitoring a Bridge Strengthened with Coiled Spring Pins
Hällmark. R, Collin. P
Structural Engineering International
Conference paper

Monitoring of a bridge strengthened with post-installed coiled spring pins (2017)

Hällmark. R, Collin. P, Petersson. M, Andersson. E
Part of: IABSE Symposium, Vancouver, 2017, Engineering the Future, s. 1201-1208, IABSE - International Association for Bridges and Structural Engineering, 2017