Abstract Developing heavy-lift studies is a vital task in heavy congested industrial projects such as modular projects where it is necessary to lift modules with mobile cranes. However, preparing these lift studies can be time-consuming. Hence, automating this process is a great step in saving time, and reducing the percentage of errors, having the practitioner focus on lift planning rather than tedious tasks. A significant step in the pre-construction and construction phase of an industrial project is creating the 4D animation of lift processes. Such an animation develops a better understanding of the process and streamlines finding the best path for the mobile crane movements to avoid collisions. Such a 4D lift animation (i.e., simulation) can be a mandate when the lifting process is performed in a congested construction site involving more than one crane. This research study aims to propose a comprehensive framework for creating the 4D animation of a multi mobile crane lift process. The proposed approach can connect to a comprehensive model, in Building Information Modeling (BIM) terminologies, or can auto-generate the simplified CAD model containing the lifting objects (i.e., modules in modular construction) and obstructions by interacting with a central database. It can also auto-generate the 3D model of cranes in the set and pick positions. Then, the lift animation can be developed quickly in an automated manner by employing a customized Application Programming Interface (API). The developed API generates the lift animation of the cranes based on the defined timeline and lifting path by reading the required data (e.g., site information, modules information, cranes information, object models, and lift sequences) from the database. The proposed framework is validated by applying in a portion of a real modular industrial project in Alberta, Canada. The results show that the developed system has enough flexibility to simulate multi-mobile crane movements with various types of mobile cranes, multiple kinds of movements, and various site conditions.

中文翻译：

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使用建筑信息模型进行多起重机提升仿真

摘要 在重型拥挤的工业项目（例如需要用移动式起重机提升模块的模块化项目）中，开展重型起重研究是一项至关重要的任务。然而，准备这些提升研究可能非常耗时。因此，自动化这个过程是节省时间和减少错误百分比的重要一步，让从业者专注于提升计划而不是繁琐的任务。工业项目的施工前和施工阶段的一个重要步骤是创建电梯过程的 4D 动画。这样的动画有助于更好地理解过程，并简化寻找移动式起重机运动的最佳路径以避免碰撞的过程。这样的 4D 升降动画（即 当在拥挤的施工现场执行起重过程时，涉及多台起重机的情况下，模拟）可能是一项任务。本研究旨在提出一个综合框架，用于创建多移动式起重机提升过程的 4D 动画。所提出的方法可以连接到建筑信息模型 (BIM) 术语中的综合模型，或者可以通过与中央数据库交互来自动生成包含起重对象（即模块化构造中的模块）和障碍物的简化 CAD 模型。它还可以在设置和拾取位置自动生成起重机的 3D 模型。然后，可以通过使用定制的应用程序编程接口 (API) 以自动方式快速开发电梯动画。开发的 API 通过从数据库中读取所需的数据（例如，站点信息、模块信息、起重机信息、对象模型和升降序列），根据定义的时间线和升降路径生成起重机的升降动画。提议的框架通过在加拿大艾伯塔省的一个真实模块化工业项目的一部分中应用而得到验证。结果表明，所开发的系统具有足够的灵活性，可以模拟多种移动式起重机、多种移动方式和各种现场条件下的多移动式起重机移动。加拿大。结果表明，所开发的系统具有足够的灵活性，可以模拟多种移动式起重机、多种移动方式和各种现场条件下的多移动式起重机移动。加拿大。结果表明，所开发的系统具有足够的灵活性，可以模拟多种移动式起重机、多种移动方式和各种现场条件下的多移动式起重机移动。