Human-Enhanced Loop Modeling (HELM): Agent-Based Finite Element Modeling of Concrete Bridge Barriers
Summary
This paper introduces HELM, a human-agent framework that automates finite element modeling of concrete bridge barriers, increasing success rates from 20% to 75% using commercial FE software.
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# Human-Enhanced Loop Modeling (HELM): Agent-Based Finite Element Modeling of Concrete Bridge Barriers Source: [https://arxiv.org/abs/2606.12025](https://arxiv.org/abs/2606.12025) [View PDF](https://arxiv.org/pdf/2606.12025) > Abstract:Finite element \(FE\) modeling of safety\-critical infrastructure such as bridge barriers requires high\-fidelity nonlinear dynamic analysis, yet the current FE modeling process remains labor\-intensive and lacks automation\. This paper presents the Human\-Enhanced Loop Modeling \(HELM\) framework, a collaborative human\-agent protocol that decomposes long\-sequence finite element modeling into discrete, visually verifiable checkpoints across geometry generation, boundary condition definition, and material assignment\. The framework is demonstrated through a 20\-case matrix of reinforced concrete bridge barriers under MASH TL\-4 and TL\-5 lateral loading conditions, interfacing specialized agents with two widely used commercial FE softwares, i\.e\., ANSYS and LS\-PrePost\. Experimental results show that HELM improves the baseline autonomous modeling success rate from 20% to 75%, with agent\-level pass rates for geometry and boundary condition tasks approximately doubling\. Error analysis reveals that spatial reasoning and algebraic logic limitations constitute the primary failure modes, underscoring the value of structured human\-in\-the\-loop intervention for modeling automation\. The complete agent design code and prompts are open\-sourced and can be accessed at:[this https URL](https://github.com/SimAgentDev/Ansys-LSPP-AgentKit)\. ## Submission history From: Quankai Wang \[[view email](https://arxiv.org/show-email/770322dd/2606.12025)\] **\[v1\]**Wed, 10 Jun 2026 12:48:27 UTC \(10,216 KB\)
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