@inproceedings{KellerAntoniadisMenzel2004,
  author    = {Keller, Martin and Antoniadis, George and Menzel, Karsten},
  title     = {Resource Management for the Construction Industry},
  doi       = {10.25643/bauhaus-universitaet.167},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1679},
  year      = {2004},
  abstract  = {The management of resources is an essential task in each construction company. Today, ERP systems and e-Business systems are available to assist construction companies to efficiently organise the allocation of their personnel and equipment within the company, but they cannot provide the company with the idle resources for every single task that has to be performed during a construction project. Therefore, companies should have an alternative solution to better exploit expensive resources and compensate their fixed costs, but also have them available at the right time for their own business activities. This paper outlines the approach taken by the EU funded project "e-Sharing" (IST-2001-33325) to support resource management between construction companies. It will describe requirements for the management of construction resources, its core features, and the integration approach. Therefore, we will outline the approach of an integrated resource type model supporting the management and classification of construction equipment, construction tasks and qualification profiles. The development is based on a cross-domain analysis and evaluation of existing models. ...},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{KoenigKlingerBerkhahn2004,
  author    = {K{\"o}nig, Markus and Klinger, Axel and Berkhahn, Volker},
  title     = {Structural Correctness of Planning Processes in Building Engineering},
  doi       = {10.25643/bauhaus-universitaet.169},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1690},
  year      = {2004},
  abstract  = {The planning of projects in building engineering is a complex process which is characterized by a dynamical composition and many modifications during the definition and execution time of processes. For a computer-aided and network-based cooperation a formal description of the planning process is necessary. In the research project "Relational Process Modelling in Cooperative Building Planning" a process model is described by three parts: an organizational structure with participants, a building structure with states and a process structure with activities. This research project is part of the priority program 1103 "Network-Based Cooperative Planning Processes in Structural Engineering" promoted by the German Research Foundation (DFG). Planning processes in civil engineering can be described by workflow graphs. The process structure describes the logical planning process and can be formally defined by a bipartite graph. This structure consists of activities, transitions and relationships between activities and transitions. In order to minimize errors at execution time of a planning process a consistent and structurally correct process model must be guaranteed. This contribution considers the concept and the algorithms for checking the consistency and the correctness of the process structure.},
  subject      = {Baubetrieb},
  language  = {de}
}
@inproceedings{Palm2004,
  author    = {Palm, Johan},
  title     = {Integrated Engineering Workflow focused on the Structural Engineering in the Industrial Environment},
  doi       = {10.25643/bauhaus-universitaet.162},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1625},
  year      = {2004},
  abstract  = {The engineering and construction industry has been slow to exploit the full potential of information technology. The industry is highly fragmented, price sensitive, risk-adverse, and profit margins are small. Each project is unique with a small amount of technological innovation opportunities to capitalise on from one project to the next. Technological innovations that have been taking place are just simulating the old traditional paper workflow. Engineering information in digital form is being conveyed using traditional paper representations, which have to be interpreted by humans before the information can be used in other applications, thereby creating 'islands of information'. It can be seen that poorly implemented IT strategies are duplicating paperwork, rather than reducing or eliminating it (Crowley et al., 2000). This paper will introduce the Integrated Engineering Workflow (IEW) concept to re-organise a structural discipline working on multi-disciplinary projects so as to maximise the advantages offered by new information technology.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{Hoelzer2003,
  author    = {H{\"o}lzer, Wolfgang},
  title     = {Advanced Planning and Scheduling Systems: Optimierungsmethoden in der interaktiven Entscheidungsunterst{\"u}tzung auf Basis von ERP und Feinplanung},
  doi       = {10.25643/bauhaus-universitaet.308},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3080},
  year      = {2003},
  abstract  = {Seit die Datenverarbeitung in ihrer Komplexit{\"a}t sich der Thematik des Computer Integrated Manufacturing widmet geh{\"o}rt die Produktionsplanung und Steuerung zu jenen Bereichen, in denen eine Computerunterst{\"u}tzung am vordringlichsten erschien. Sp{\"a}ter sind betriebswirtschaftliche Gesamtl{\"o}sungen entstanden, die (bis heute recht unpr{\"a}zise) als Enterprise Resource Planning (ERP)-Systeme bezeichnet werden und in ihren Logistik-Modulen auch Funktionen der Produktionsplanung abdecken. Alle bekannten MRP-, PPS- und auch ERP-Systeme beruhen auf einer Sukzessivplanung. Advanced Planning and Scheduling (APS) Systems finden seit etwa 1995 zunehmend Interesse. Neben Demand Planning, Production Planning and Scheduling, Distribution Planning, Transportation Planning und Supply Chain Planning werden L{\"o}sungen f{\"u}r Anzahl und Standorte von Produktionsst{\"a}tten und Auslieferungslagern, Zuordnung zu Produktionsst{\"a}tten, Kapazit{\"a}tsbestimmung f{\"u}r Arbeitskr{\"a}fte und Betriebsmittel je Standort, Lagerhaltung je Teil und Lager, Bestimmung ben{\"o}tigter Transportmittel und H{\"a}ufigkeit ihres Einsatzes, Zuordnung von Lagern zu Produktionsst{\"a}tten von M{\"a}rkten zu Lagern u.a.m. von APS-Systemen erwartet. D.h. APS-Systeme erg{\"a}nzen ERP-L{\"o}sungen, nutzen die bereits durch das ERP-System vorhandenen Daten und ben{\"o}tigen neuartige Algorithmen und (Meta-) Heuristiken. Im Rahmen des Vortrages werden Modelle und Echtzeitalgorithmen zur Optimierung der Logistik f{\"u}r Prozesse mit kurzfristigen Anforderungen, geographisch verteilter Produktion, Lagerhaltung der Ausgangs-, Zwischen- und Endprodukte und wechselnden Transport-Bedingungen aus der Sicht der praktischen Umsetzung und Anwendung in Form einer ASP-L{\"o}sung aufgezeigt und diskutiert.},
  subject      = {Produktionsplanung},
  language  = {de}
}
@inproceedings{BiltchoukPahl2004,
  author    = {Biltchouk, Irina and Pahl, Peter Jan},
  title     = {Interaction of Data Bases and Graphical Interfaces in Civil Engineering},
  doi       = {10.25643/bauhaus-universitaet.163},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1636},
  year      = {2004},
  abstract  = {Applications for civil engineering tasks usually contain graphical user interfaces for the engineering processes. Persistent objects of the applications are stored to data bases. The influence of the interaction between a graphical user interface and a data base for the development of an civil engineering application is investigated in this paper. A graphic application for the linear elastic analysis of plane frames, which was previously developed with standard tools of the Java platform, is compared to a redesigned implementation using a generalized data base for persistent objects. The investigation leads to the following results : - A strict distinction between persistent and transient objects influences the class structure of an application, in particular the class structure of a graphical user interface. - The structure of an application depends on the logic for updating of references to persistent and transient graphical objects after an application is read from a file. - The complexity of the reference management can usually be handled better by just in time referencing associated with String - identifiers rather than by automated referencing associated with Name - identifiers.},
  subject      = {Baubetrieb},
  language  = {en}
}
@article{MisztalMisztal1997,
  author    = {Misztal, S. and Misztal, G.},
  title     = {Anwendung von Delta-Dirac-Funktion und Heviside-Funktion zur Berechnung der inneren Kr{\"a}fte und Verschiebungen in gebogenen Balken},
  doi       = {10.25643/bauhaus-universitaet.530},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5308},
  year      = {1997},
  abstract  = {Die d - Dirac - Funktion d(x-xi) und Heviside - Funktion wurden vor allem zur Beschreibung diskontinuierlicher Belastungsfunktionen von gebogenen Balken angewendet. Im Referat werden die mathematischen Operationen auf den erw{\"a}hnten Funktionen dargestellt. Dar{\"u}ber hinaus wird die M{\"o}glichkeit eindeutiger Aufschreibung von belibigen Belestungsfunktionen vorgeschlagen, die fast alle F{\"a}lle der in der Ingenieurpraxis auftretenden Belastungen umfassen. Die vorgeschlagenen L{\"o}sungen geben die M{\"o}glichkeit leichter Aufschreibung im Form eines Algorithmus, das die Ausnutzung von Komputertechnik in statischen Berechnungen erm{\"o}glicht. Am Ende des Referates werden die Zahlebeispiele dargestellt, die die M{\"o}glichkeiten praktischer Anwendungen der besprochenen Funktionen darstellen.},
  subject      = {Balken},
  language  = {de}
}
@inproceedings{AmezianeLasserre2003,
  author    = {Ameziane, Farid and Lasserre, Stephane},
  title     = {SYSBAT - An Application to the Building ProductionBased on Computer Supported Cooperative Work},
  doi       = {10.25643/bauhaus-universitaet.274},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-2748},
  year      = {2003},
  abstract  = {Our proposed solution is to enable partners of a construction project to share all the technical data produced and handled during the building production process by building a system through the use of internet technology. The system links distributed databases and allows building partners to access remotely and manipulate specific information. It provides an updated building representation that is being enriched and refined all along the building production process. A recent collaboration with Nemetschek France (subsidiary company of Nemetschek AG, AEC CAD software leader) focus on a building product repository available in a web context. The aim is to help building project actors to choose a technical solution that fits its professional needs, and maintain our information system with up to date information. It starts with the possibility to build on line building product catalogs, in order to link Allplan CAD entities with building technical features. This paper presents the conceptual approaches on which our information system is built. Starting from a general organization diagram organization, we focus on the product and the description branches of construction works (including last IFC model specifications). Our aim is to add decisional support to the construction works selection process. To do so, we consider the actor's role upon the system and the pieces of information each one needs to achieve a given task.},
  subject      = {Bauplanung},
  language  = {en}
}
@inproceedings{Zaneldin2004,
  author    = {Zaneldin, Essam},
  title     = {Investigate the Impact of Different Resource Allocation Strategies on the Design of Building Projects Using Simulation},
  doi       = {10.25643/bauhaus-universitaet.165},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1658},
  year      = {2004},
  abstract  = {The design of building projects involves several types of resources such as architects, structural engineers, mechanical engineers, electrical engineers, and draftsmen, among others. For design firms to stay in business in this very competitive market, they need to manage their resources in a way that improves productivity and cost effectiveness. This task, however, is not simple and requires thorough analysis of process-level operations, resource use, and productivity. Typically, these operational aspects are the responsibility of the design office manager who assigns available resources to the different design projects to save time and lower design expenses. It is noted that limited studies have been carried out in the literature to model overall organizational operations and behavioral aspects, particularly in firms specialized in the design of building projects. In an effort to simplify the modeling process, a simplified modeling and simulation tool is used in this research. A simulation model representing an actual design office was developed assuming that the office performs designs for small, medium, and large size building projects. The developed model was used to simulate several alternatives and examine various resource assignment strategies. The simulation was conducted over ten years and the resulting productivity and income was measured.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{Huhnt2004,
  author    = {Huhnt, Wolfgang},
  title     = {Progress Measurement in Planning Processes on the Base of Process Models},
  doi       = {10.25643/bauhaus-universitaet.166},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1664},
  year      = {2004},
  abstract  = {This paper presents a specific modeling technique that is focused on preparing planning processes in civil engineering. Planning processes in civil engineering are characterized by some peculiarities so that the sequence of planning tasks needs to be determined for each planning project. Neither the use of optimized partial processes nor the use of lower detailed and optimized processes guarantee an optimal overall planning process. The modeling technique considers these peculiarities. In a first step, it is focused on the logic of the planning process. Algorithms based on the graph theory determine that logic. This approach ensures consistency and logical correctness of the description of a planning process at the early beginning in its preparation phase. Sets of data - the products of engineers like technical drawings, technical models, reports, or specifications - form the core of the presented modeling technique. The production of these sets of data requires time and money. This is expressed by a specific weighting of each set of data in the presented modeling technique. The introduction of these weights allows an efficient progress measurement and controlling of a planning project. For this purpose, a link between the modeling technique used in the preparation phase and the execution phase is necessary so that target and actual values are available for controlling purposes. The present paper covers the description of this link. An example is given to illustrate the use of the modeling technique for planning processes in civil engineering projects.},
  subject      = {Baubetrieb},
  language  = {en}
}
@inproceedings{ElRayesKandil2004,
  author    = {El-Rayes, Khaled and Kandil, Amr},
  title     = {Distributed Computing for the Optimization of Large-Scale Construction Projects},
  doi       = {10.25643/bauhaus-universitaet.160},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-1601},
  year      = {2004},
  abstract  = {Available construction time-cost trade-off analysis models can be used to generate trade-offs between these two important objectives, however, their application is limited in large-scale construction projects due to their impractical computational requirements. This paper presents the development of a scalable and multi-objective genetic algorithm that provides the capability of simultaneously optimizing construction time and cost large-scale construction projects. The genetic algorithm was implemented in a distributed computing environment that utilizes a recent standard for parallel and distributed programming called the message passing interface (MPI). The performance of the model is evaluated using a set of measures of performance and the results demonstrate the capability of the present model in significantly reducing the computational time required to optimize large-scale construction projects.},
  subject      = {Baubetrieb},
  language  = {en}
}