AI for Structural Engineering and How It's Transforming the Industry

Anthony Massobrio

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CFD Expert & AI for CAE Contributor

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March 20, 2024

This guide introduces AI and its impact on civil engineering for practitioners and students alike

The revolution in Artificial Intelligence (AI) for structural engineering has become tangible. Every modern structure leaves a trail with vast amounts of data. Sensor readings, load histories, and project records, including structural simulations, are retrievable.

Advancements in data science now enable computers to learn from  accumulated knowledge. Learning machines can produce results at speeds that classical computing systems cannot match. For instance:

  • You can flag structural anomalies earlier, supporting continuous monitoring.
  • You can automate project workflows burdened by repetitive operations

The construction engineering teams and their industry partners are adopting these methods through pilot projects. AI systems complement traditional physics-based approaches by adding data-driven insights, enabling users in the construction industry without a specialist background to adopt these methods.

A tension-spoke structure with cable sized for load efficiency and minimal material: a candidate for AI-driven optimization: hundreds of interdependent members, each tunable for load, weight, and deflection

What is Artificial Intelligence?

Artificial intelligence refers to systems that learn from data rather than relying solely on explicit programming. The core idea is simple: learn and improve as you see more examples.

From rule-based systems to modern machine and deep learning, the AIs that underpin many structural engineering tools | Helge Scherlund's eLearning News | CC BY 3.0

Deep Learning is the primary approach for training a predictive surrogate. For example, a training dataset may include

  • input: geometry of structures in their full complexity (e.g., 3-dimensional Computer-Aided Design CAD) with loads and various environmental conditions
  • output: performance parameters, for instance, learned outputs are the resulting stresses and other KPIs for structural integrity

This advanced yet accessible guide to Deep Learning focuses on 3D Convolutional Neural Networks.

More on Deep Learning: a ConvNet (CNN) architecture for a neural network dedicated to image recognition | sefiks.com

The input-output mapping is learned via training on datasets, and the trained model can predict results for new cases. An example of a structural result is  the stress concentration factor

The I-35W Mississippi River bridge case illustrates the long-term effects of stress concentration in structures | Wikipedia

What is the Focus of Applications in Structural Analysis and Design?

AI applications in structural analysis focus on speed and exploration:

  • Speed: Surrogate prediction systems assist finite element analysis (FEA) simulations by providing fast approximations learned from input/output CAD/FEA relationships.
  • Augmented design space exploration: At the core of surrogates, Machine learning (ML) and Deep Learning provide an accelerated alternative to simulations. This expands the design space exploration.
  • Novel solutions: Given a timeframe, AI surrogates replace a handful of simulations with hundreds of predictions,  uncovering configurations that time alone would have ruled out.
  • A design copilot has the ability to generate and assess thousands of potential design configurations, identifying optimal solutions that humans might overlook.
  • Generative design: Given objectives and constraints, AI autonomously generates and evaluates thousands of configurations, returning optimized candidates across the full solution space
An iterative design model where each of the design iterations is broken down into segments | Author

Material Optimization

AI can identify design choices that reduce waste while maintaining safety and performance. In many applications, AI-driven optimization leads to more efficient use of construction materials. The result is to support sustainability goals

These improvements are achieved through statistical and neural algorithms. Algorithms learn from previous designs, simulations, and real project outcomes.

Material optimization using AI involves techniques such as topology optimization and generative design. Those techniques are deployed to identify the most efficient structural forms.

These techniques help students and practitioners in the engineering profession evaluate alternatives more quickly than traditional trial-and-error methods.

For instance, at Beijing Daxing International Airport, generative design applied to the glass skylight connections achieved a 57% reduction in mass compared to traditional plate-type connections, while also reducing peak equivalent stress by 38%.

Full reference: Wang, H. et al. (2024). "Generative design and topology optimization research for single–layer aluminum alloy grid shell connections". Case Studies in Construction Materials, 21. https://doi.org/10.1016/j.cscm.2024.e03781

 von Mises stress distribution across different components | Wang, H. et al., doi.org/10.1016/j.cscm.2024.e03781

Design Process Automation

In design automation, AI integrates into each stage:

  • Concept: generate candidate designs via generative approaches
  • Prediction: run fast surrogates for feedback
  • Detailing: automate drawings and documentation
  • Review: check compliance with building codes (sets of rules and regulations that specify the minimum standards a structure must meet to be considered safe and legally compliant)
Simple pre-AI automation example: a CAD tool to duplicate objects in a specified pattern, automating repetitive actions | emagtech.com).

AI can automate tedious approaches such as preprocessing, postprocessing results, generating reports, and creating drawings. It can streamline administrative tasks such as summarizing meeting notes, writing reports, and researching technical topics, allowing staff to focus on creative design.

Implementation Roadmap for Structural Engineers

Adoption requires a well-organized approach.

  • Assess data readiness: their quality is essential.
  • Select technologies aligned with project goals.
  • Pilot on low-risk projects as a starting point for uncertainty estimation.
  • Scale successful workflows across the organization.

The implementation can incur high initial costs for software, hardware, and training. However, gains in future capabilities justify the investment.

Read more about how to assess uncertainty in deep learning applications.

Case Studies

This section presents practical applications, concentrating on how new tools are integrated into structural monitoring and building design workflows.

Bridge Monitoring

According to ASCE’s 2025 Infrastructure Report Card, of the 600,000+ bridges in the US, 49.1% are rated fair and 6.8% poor, with over 168 million daily crossings on poor-rated bridges. Continuous AI-driven monitoring directly addresses this issue.

AI-driven structural health monitoring uses sensor networks to track the real-time performance of bridges and other structural systems.

  • Systems elaborate input from strain gauges, accelerometers, and displacement sensors to detect deviations, signs of damage, fatigue, or stiffness loss.
  • IoT platforms enable continuous data collection, while digital twins integrate this data with physics-based structural models, including static structural analysis, to simulate current and future states.
  • ML classifies patterns, filters noise, and detects anomalies, including nonlinear structural response indicative of damage or stiffness degradation, beyond traditional thresholds.

This shift from periodic inspections to continuous, condition-based assessment enhances predictive maintenance and safety decisions.

Read more on the difference between preventive and predictive maintenance.

Thousands of design options evaluated in seconds; the engineer selects the feasible region | Neural Concept

Building Design

Building design is expensive to get wrong. A study by KPMG quoted by Autodesk found that only 31% of projects stayed within 10% of their budgets over a three-year period, and that design errors alone account for 38% of construction disputes.

A typical AI-assisted workflow in building design or infrastructure monitoring can be described as follows:

  • Scope: Applications range from structural health monitoring of existing infrastructure to the design and evaluation of new buildings.
  • Tools and infrastructure: The workflow integrates AI, CAD, and FEA
  • Modeling approach: Surrogates are trained on historical performance records to efficiently approximate structural responses.
  • Performance metrics: Effectiveness is assessed by reduced computation time, lower design costs, and improved safety margins resulting from more extensive design space exploration.

See also this recent interview on IIE Spectrum on how AI models are changing engineering.

Nada Bridge | Mark Yashinsky | CC BY-NC-SA 3.0 US

How Does AI Optimize Design?

AI optimizes design through generative design, automating structural health monitoring, and accelerating simulations.

Half of all buildings that will exist by 2050 have not yet been built, according to UNEP. This means the decisions engineers make today about geometry, material use, and structural efficiency will lock in emissions for decades. This is the core problem that AI-driven design optimization is positioned to address, solving for material efficiency and carbon impact simultaneously.

It offers opportunities for innovation in design and operational efficiency in both the planning and construction phases of engineering projects.

Furthermore, optimization techniques allow for refining designs and minimizing material usage while meeting design criteria and constraints.

Tools can connect key design criteria such as geometry, loading, materiality, vibration, and embodied carbon into a single live interactive interface, leading to lower greenhouse gas emissions and reduced material extraction.

Key Takeaways

  • AI learns from data and physics for faster predictions, design exploration, and early anomaly detection. anomalies.
  • Materials improve with generative and topology methods, reducing waste while meeting safety, cost, and carbon targets.
  • Workflows are automated from sketches to compliance, freeing users to exercise judgment.
  • Adoption needs discipline: phased pilots are crucial to maximize benefits and minimize risks.

FAQs

How does AI help structural engineering move toward more environmentally responsible outcomes?

Algorithms are particularly effective at optimizing material use and reducing waste, directly contributing to sustainability goals. AI can help structural engineers design smarter, more efficient buildings by enhancing decision-making and incorporating sustainability into the design process. Users must ensure that AI tools align with their vision for safety, sustainability, resilience, and low embodied carbon.

What forms of artificial intelligence are now part of standard engineering practice?

AI technologies such as computer vision, natural language processing, and machine learning are increasingly integrated into structural engineering practices.

What does AI bring to the quality control side of engineering projects?

AI algorithms can automatically analyze large datasets to identify discrepancies, errors, or deviations from established standards in engineering projects. AI technologies enable automation and improved precision across critical tasks in structural engineering, including quality assurance and control. AI can significantly enhance reliability and consistency in quality assurance processes while reducing the manual effort required from engineers.

How does AI free up engineers from administrative burdens and improve teamwork?

(1) AI can improve team collaboration by allowing users to create and share user-friendly web apps to automate design workflows. (2) It can dramatically reduce the time required to synthesize stakeholder feedback, summarize comments, and manage administrative tasks in standard development. (3) It can enhance predictive modeling, anomaly detection, and decision support systems in structural engineering. (3) It can assist engineers in assessing the lifecycle impacts of structural materials more comprehensively.

What are the boundaries of AI in engineering, and what risks should practitioners be aware of?

AI is not a substitute for professional knowledge and judgment; the role of humans remains crucial in validating AI outputs and ensuring the integrity of designs. Their critical thinking is essential in the age of AI to check models, validate outputs, and develop new approaches. Algorithms can automatically analyze large datasets to identify discrepancies, errors, or deviations from established standards. However, AI models require high-quality, unbiased datasets to make accurate predictions, and poor data can lead to flawed designs. Also, implementing AI tools in structural engineering can incur high initial costs for software, hardware, and training.

What safeguards need to be in place before adopting AI in professional practice?

The integration of AI in structural engineering requires clearly defined guidelines and ethical frameworks for its usage. Ethical considerations in AI adoption include addressing inherent data bias that may favor certain materials, construction methods, or stakeholders.

What is the right way to frame AI’s overall contribution to the profession?

AI’s integration into structural engineering should complement rather than replace human expertise and creativity. AI offers opportunities for innovation in design and operational efficiency, enabling engineers to tackle complex design challenges. AI offers opportunities for innovation in design.

How does AI expand what’s achievable in the structural design process?

AI algorithms can quickly generate and assess thousands of potential design configurations, identifying optimal solutions that human engineers might overlook. Thus, they improve the efficiency and accuracy of structural design processes by automating repetitive tasks and facilitating real-time data processing. Optimization techniques in structural engineering enable engineers to refine designs, improve performance, and minimize material usage while meeting design criteria and constraints.

How is AI changing the way engineers assess and monitor physical infrastructure?

AI-powered computer vision facilitates rapid, automated processing of visual data from drone imagery, satellite photos, or stationary cameras. AI can help structural engineers forecast potential failures and schedule preventive maintenance by analyzing historical data and real-time data from embedded sensors. AI technologies allow rapid, automated appraisal of visual data from infrastructure inspections. Predictive models help structural engineers forecast potential failures and schedule preventive maintenance. Structural health monitoring offers continuous monitoring of structures using distributed sensor networks.

In which everyday engineering tasks can AI provide the most direct assistance?

AI can assist engineers by parsing complex regulatory language and offering targeted answers to compliance questions; forecasting potential failures and scheduling preventive maintenance by analyzing historical and real-time sensor data; and more comprehensively assessing the lifecycle impacts of structural materials by combining historical data with predictive models.

How does AI improve decision-making around a structure’s long-term performance?

By combining historical data with predictive models, AI-powered assessments provide accurate forecasts of maintenance needs, durability, and environmental impacts over the entire lifecycle of structures.

What are the challenges in AI adoption for structural engineering?

Key challenges in adoption include data quality, the “black box” problem, and the need for skilled professionals. Ethical issues include data bias that may favor certain materials or construction methods. Engineers must ensure alignment with safety, sustainability, and low-embodied-carbon goals.

The integration of AI requires clear guidelines and ethical frameworks. In the US, organizations such as ASCE (American Society of Civil Engineers), SEI (Structural Engineering Institute subdivision), and NCSEA (National Council of Structural Engineers Associations), or IABSE (International Association for Bridge and Structural Engineering) and fib (Fédération Internationale du Béton)  internationally, are developing standards.

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Anthony Massobrio

CFD Expert & AI for CAE Contributor

Anthony has been a CFD expert since 1990, working initially as a senior researcher, then moved to Engineering, acting also as technical director in a challenging Automotive Tier 1 supplier environment. Since 2001, Anthony has worked in Software & Engineering Consultancy as a Sales Engineer and manager. In 2020, Anthony fell in love with AI and has worked since then in the field of “AI for CAE” at Neural Concept and as an independent contributor.

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