Bridge construction schedule generation with pattern-based construction methods and constraint-based simulation
Bridge construction schedule generation with pattern-based construction methods and constraint-based simulation
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DOI：
10.1016/j.aei.2010.07.002
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发表时间：
2010-11
期刊：
影响因子：
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通讯作者：
I. Wu;A. Borrmann;U. Beißert;M. König;E. Rank
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文献类型：
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作者：
I. Wu;A. Borrmann;U. Beißert;M. König;E. Rank
本文提出了一种新的方法，它有助于自动生成的桥梁施工项目的时间表。该方法是基于建筑工程的模拟，考虑到可用的资源和各个任务之间的相互依赖性。模拟是通过离散事件模拟软件实现的，该软件最初是为制造业中的工厂布局而创建的。由于固定的过程链提供的事实是太刚性的自发施工任务序列的模型，一个约束模块，动态选择以下的任务已被纳入。约束模块输入数据由活动包形成，活动包包括受影响的建筑元素、所需的材料、机器和人力资源，以及待执行活动的技术预测。由于手动创建大量的活动包是费力和容易出错的，已经开发了一个基于3D模型的应用程序，该应用程序允许将施工方法交互式分配给各个建筑元素。为了促进这一过程，一个层次的细节的方法已经实现，它允许用户不断完善的过程模型和相应的产品模型。离散事件模拟系统使用所有给定的信息来自动创建施工进度计划的建议，然后可以使用标准调度软件进行细化。
This paper presents a novel methodology which assists in automating the generation of time schedules for bridge construction projects. The method is based on a simulation of construction works, taking into account the available resources and the interdependencies between individual tasks. The simulation is realized by means of a discrete-event simulation software originally created for plant layout in the manufacturing industry. Due to the fact that the fixed process chains provided are too rigid to model the spontaneous construction task sequences, a constraint module that dynamically selects the following task has been incorporated. Constraint module input data is formed by activity packages comprising of the affected building element, the required material, machine and manpower resources, as well as the technological pre-requisites of the activity to be performed. Since manual creation of the large set of activity packages is laborious and error-prone, a 3D model-based application has been developed which allows the interactive assignment of construction methods to individual building elements. To facilitate this process, a level-of-detail approach has been implemented which allows the user to successively refine both the process model and the corresponding product model. The discrete-event simulation system uses all the given information to create a proposal for the construction schedule automatically, which may then be refined using standard scheduling software.