Abstract Reinforced concrete (RC) beam-column joints are the critical components of RC building frames. Congestion and even collision of reinforcing bars (rebars) encounter frequently in the core region of a joint. The building information modeling (BIM) technology is helpful to detect the rebar collision, which has to be revised manually. In this paper, inspired by collision-free capability of intelligent agent, an automatic rebar layout framework based on artificial potential field (APF) is proposed to solve the issues of rebar collision and congestion during the design stage. The rebars in a beam-column joint are regarded as agents, and a novel APF method is proposed to guide the moving trajectory of each agent. The APF method ensures that each rebar-agent can reach its goal point and escape from the trapping of local-minimum point. An Autodesk Revit add-in is developed to save modeling time and improve accuracy. Experiments on a two-story RC frame validate the applicability and efficiency of the intelligent rebar layout framework. It can be shown that the developed framework can avoid the rebar collision and congestion at beam-column joints quickly and effectively.

中文翻译：

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使用人工势场的 RC 建筑框架中的智能钢筋布局

摘要 钢筋混凝土（RC）梁柱节点是钢筋混凝土建筑框架的关键组成部分。钢筋（钢筋）的拥塞甚至碰撞在节点的核心区域经常遇到。建筑信息模型（BIM）技术有助于检测钢筋碰撞，必须手动修改。在本文中，受智能代理的无碰撞能力的启发，提出了一种基于人工势场（APF）的钢筋自动布局框架，以解决设计阶段钢筋碰撞和拥塞的问题。将梁柱节点中的钢筋视为代理，提出了一种新的APF方法来引导每个代理的移动轨迹。APF 方法确保每个 rebar-agent 都能到达其目标点并摆脱局部最小点的陷阱。开发了 Autodesk Revit 插件以节省建模时间并提高准确性。两层钢筋混凝土框架的实验验证了智能钢筋布局框架的适用性和效率。可以看出，所开发的框架可以快速有效地避免梁柱节点处的钢筋碰撞和拥塞。