SS-DSC: Stainless steel-concrete composite beams with stainless-steel demountable shear connectors for sustainable infrastructure
Lead Research Organisation:
Heriot-Watt University
Department Name: Sch of Energy, Geosci, Infrast & Society
Abstract
This project will assess the structural behaviour of steel-concrete composite beams (for buildings or bridges) that have stainless-steel steel sections connected to precast concrete slabs with demountable connectors. Composite bridges made of stainless-steel material will have a significantly greater durability, they will not be prone to corrosion, and they will require less maintenance. The concrete decks will be easily replaced, if needed, with minimum downtime and disruption to traffic. In addition, all components will be reusable at the and of life of a bridge or building, which is in line with a circular economy model and will help to achieve the net-zero target in the construction sector. The composite beams will be assessed through a series of experimental tests in the Labs and advanced numerical simulations. Life cycle assessment tools will be utilized to evaluate the life-cycle costs and environmental performance of the proposed composite beams.
Organisations
Publications

Kong Z
(2024)
Mechanical properties of SLM 316L stainless steel plate before and after exposure to elevated temperature
in Construction and Building Materials

Kong Z
(2025)
Shear capacity of additively manufactured stainless steel bolted connections after fire
in Engineering Structures

Kong Z
(2024)
Stability performance of corroded circular steel tube under eccentric compression
in Construction and Building Materials

Kong Z
(2024)
Mechanical performance of Q345 steel after corrosion: Experimental and theoretical investigation
in Structures

Kong Z
(2023)
Numerical Analysis for Behavior of Stainless-Steel Web Cleat Connections at Elevated Temperatures
in Fire Technology

Kong Zhengyi
(2024)
Shear capacity of additive-manufactured stainless-steel single-lap bolted connections
in STEEL AND COMPOSITE STRUCTURES
Description | We discovered specific unique properties that apply to 3d printed steel parts. More specifically, we discovered that 3d printed steel exhibits unique material behaviour that is different than that typically exhibited by traditionally manufactured steel. |
Exploitation Route | They can contribute in influencing regulations and Standards that provide design provisions for the use of 3d printed steel in construction. They will potentially help others to more accurately simulate the behaviour of 3d printed steel in specialised software. |
Sectors | Construction |