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12th International Conference on Construction Application of Virtual Reality WORK PLANNING BASED ON A BUILDING INFORMATION MODEL Sebastian Hollermann & Hans-Joachim Bargstädt Bauhaus-Universität Weimar, Germany ABSTRACT: In this paper, the author show how to improve scheduling based on a building information model. Building information models (BIM) are not yet common in construction and as a result, have not been fully taken advantage of. Delayed completion and increasing costs during execution indicates that a more detailed planning and risk analyse for construction projects is needed. Therefore, as much as possible information should be used for decision making. Easer accessible and more information can be stored in a building information model. Through formalising routine activities computer can support processes. These intelligent tools lead in shorter time to a more detailed planning. The one of a kind character and increasing complexity of construction projects requires focusing on problems and not on routine activities. Therefore, digital object-oriented product models such as a BIM should be used to generate schedules. Rule based or case based algorithm could be used for generating the (directed acyclic graph) structure of a schedule. Through simulation experiments the project duration and capacity utilisation of resources can be calculated. In this paper, the author demonstrates how rules are created and used to generate the structure of schedules. The object representation of the object-oriented product model as input is the decisive factor for the algorithm to generate the project schedule. Within this work algorithms for generating a schedule out of a product model like a building information model have been developed. This is an on-going research. Therefore, this paper presents the overall concepts, research objectives and the methodology. First analyses of prospects for improvements of scheduling are shown. KEYWORDS: Building Information Model, Construction management, Production scheduling 1. INTRODUCTION 1.1 Problem Statement and Motivation Construction projects are unique. This one-of-a-kind character requires that a new construction model and a new schedule needs to be developed at the beginning of every project. However, they are always made up of several types of building elements and processes. A project has several models. A construction flow model is developed out of the construction model and construction process pattern. A common way to display this schedule is a bar chart. A schedule is not linked to the underlying information. Therefore, changed information will not change the
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