Journal of Advanced Informatics in Water, Soil, and Structure

Journal of Advanced Informatics in Water, Soil, and Structure

Numerical Analysis of The Interlayer Behaviour of a Steel-Concrete-Steel Sandwich Structure with Corrugated-Strip Shear Connectors

Document Type : Research Article

Authors
Mohammad Golmohammadi 1
Mehdi Yousefi 2
1 Civil Engineering Department, Faculty of Engineering, University of Torbat Heydarieh, Torbat Heydarieh, Iran.
2 Civil Engineering Department, Faculty of Maritime Engineering, Chabahar Maritime University (CMU), Chabahar, Iran.
10.22048/wss.2025.518550.1018
Abstract
Steel-concrete-steel (SCS) sandwich composite structures consist of two steel face plates and a concrete core connected by shear connectors. Due to their high strength-to-weight ratio and excellent energy dissipa-tion capacity, these systems are increasingly used in offshore structures. This study develops 211 numerical models using the Explicit solver and mass-scaling technique in ABAQUS to efficiently simulate quasi-static behavior despite geometric complexities. The models investigate the influence of key geometric pa-rameters—including steel face plate thickness, concrete core thickness, and concrete compressive strength—on the shear performance of corrugated strip connectors (CSC). A major contribution of this research is the formulation of predictive linear regression equations for estimating maximum shear strength, offering a practical and time-efficient tool for the preliminary design and optimization of SCS structures. The findings demonstrated the critical influence of connector geometry and concrete strength on the shear performance of SCS sandwich structures, and improved predictive accuracy was achieved through refined numerical modeling.
Keywords
Steel-concrete-steel sandwich
Corrugated-strip connectors
Finite element model
Shear strength

Subjects

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  • Receive Date 22 April 2025
  • Revise Date 25 October 2025
  • Accept Date 30 October 2025
  • First Publish Date 30 October 2025
  • Publish Date 01 May 2025