Structural Engineering & Technical Consultancy
Engineering Support Across the Project Lifecycle
15+ Years
Structural Engineering Experience
Europe | India
International Engineering Perspective
Bridges & Infrastructure
Core Areas of Expertise
Concepts & Feasibility
Concept Development
Structural Concepts & Feasibility
We help evaluate structural systems, span arrangements, materials and construction approaches before major design decisions are fixed. Alternative concepts are assessed with a focus on structural efficiency, constructability and project requirements.
Detailed Engineering
From Concept to Buildable Design
Detailed engineering for steel, reinforced concrete, prestressed and composite structures, including bridges, viaducts and infrastructure. Our work covers structural members, connections, foundations and critical structural details.
Tender & Prebid Engineering
Engineering Support Before Project Award
Technical support for contractors and project teams during tender stages, including alternative structural concepts, preliminary engineering, structural optimisation, constructability considerations and comparison of design solutions.


Independent Design Review
A Second Engineering Perspective.
Independent review of structural designs, calculations and models can help identify critical assumptions, inconsistencies and potential design issues before they become costly problems.
Reviews can cover design assumptions, loads, structural models, calculations, connections, stability, applicable design requirements and constructability.
Engineering for Complex Structural Behaviour
Specialist Engineering
Structural Dynamics & Earthquake Engineering
Dynamic response, vibration and structures subjected to moving or time-dependent loads.
Structural assessment and design considerations for seismic actions and earthquake-induced behaviour.
Assessment of interaction between railway systems, track behaviour and supporting bridge structures.
Finite element modelling and specialist numerical assessment where conventional methods are insufficient.
Rail-Structure Interaction
Advanced Numerical Analysis
Complex structures and demanding loading conditions can require specialist assessment beyond conventional design approaches. 3AN Structures provides focused engineering support for critical structural behaviour and project-specific technical challenges.
How We Work
A Clear Engineering Process
Understand the Challenge
Develop the Approach
Engineer & Evaluate
Review & Deliver
Review project requirements, available information, structural constraints and the engineering objective.
Establish the appropriate structural concept, analysis strategy and design or review scope for the project.
Develop, assess and refine the structural solution with consideration of performance, constructability and applicable requirements.
Technical review and delivery of clear engineering documentation, findings and recommendations appropriate to the agreed scope.
Whether you need early-stage structural advice, detailed engineering, tender support, independent review or specialist technical expertise, tell us about your project.
