Forschung und Weiterbildung

@article{Radisch2021,

title = {VARIUS – BIM-basierte Variantenuntersuchung für verbesserte Planungsentscheidungen},

author = {T Radisch and S Fuchs and T Gröschke and D Weiß and M Weise},

editor = {Build-Ing.},

year  = {2021},

date = {2021-10-01},

urldate = {2021-10-01},

journal = {Build-Ing. 05/2021},

abstract = {Ausgangspunkt

Die Planung von Gebäuden bietet eine Vielfalt an Gestaltungsmöglichkeiten. Planer und Bauherr müssen zahlreiche Entscheidungen treffen und miteinander koordinieren. Dabei hat jede Entscheidung einen Einfluss auf das Gesamtergebnis, insbesondere für ökonomische, ökologische und nutzwertbezogene Kriterien. In der Praxis kommt es oft vor, dass Bauherren Entscheidungen ad hoc und basierend auf einer unsicheren Datengrundlage ohne Kenntnis der Konsequenzen treffen. Die Auswirkungen solcher Entscheidungen können während der  Planungsphase  selten  umfänglich  über-blickt werden. Die Konsequenzen werden für den Bauherrn häufig erst in der Nutzungsphase erkennbar. Dazu zählen beispielsweise die Nutzungskosten, die CO2-Emissionen  oder  der  thermische Komfort im Sommer und Winter. Bisher fehlten Planungswerkzeuge, die eine systematische  Variantenuntersuchung  anhand  fundierter  Bauherrenkriterien  fördern  und  diese als Entscheidungsvorlage auf bereiten, so-dass ein strukturierter und belastbarer Entscheidungsprozess durchgeführt werden kann. 



Was ist VARIUS? 

Im Rahmen der Forschungsinitiative VARIUS haben Praxispartner aus Planung und Softwareentwicklung in Kooperation mit Wissenschaftlern ein BIM-basiertes Planungswerk-zeug mit zugehörigem Workflow entwickelt. Das Ziel besteht darin, die planerische Durchführung und Auswertung von Variantenuntersuchungen zu vereinfachen und eine fundierte Basis für Entscheidungsprozesse durch die Einbindung von Simulationen zu liefern. Damit soll  insbesondere  kleinen  und  mittelständischen  Unternehmen  die  Aufbereitung  und  Kommunikation von Planungsergebnissen er-leichtert werden. Zu den Projektpartnern zählen:• Technische Universität Dresden, Institut für Bauklimatik• Hochschule für Technik, Wirtschaft und Kultur (HTWK) Leipzig• TragWerk Software Döking+Purtak GbR• AEC3 Deutschland GmbH• BauProjekt Dresden GmbH 

Methodik von VARIUS

Die entwickelte Vorgehensweise für den Variantenvergleich basiert auf den in Abbildung 1 dargestellten Prozessschritten, die im Folgenden erläutert werden.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Franzen2020,

title = {BIM-SIS Adaptive Knowledge Based System for Identification of Stone Damages in Building Information Modeling Working Environment.},

author = {C Franzen and S Fuchs and A -H Hamdan and K Hiemann and P Katranuschkov and K Luig and D Mustedanagic and R Schülbe and M Seeaed and R J Scherer},

editor = {Middendorf Siegesmund},

year  = {2020},

date = {2020-12-31},

journal = {Monument Future – Decay and Conservation of Stone – Proceedings of the 14th international Congress on the Deterioration and Conservation of Stone},

abstract = {Modern as well as historic buildings with façades out of natural stone material require maintenance, repair und retrofit works after several decades. Nowadays such building works are to be projected, planned, conducted and cleared with instrumentation of Building Information Modeling (BIM). A novel, knowledge-based stone damage identification system focused on natural stone damage due to the natural aging process is developed. In process consists of three stages (1) identifying damage types, (2) merging them into damage systems and (3) breaking them down to stone dimensions and joints, completing the damage profile. New BIM processes are develop to facilitate individual steps of damage phenomena und damage cause identification. This is achived by a continuous interoperable digital construction representation consisting of separate but interlinked domain models. This will be continued for remediation execution management and augmented with a dynamic multi-model methodology so that defects detected later during execution can simply be incorporated without problem. BIM-SIS (Schadens Identifikations System) is an adaptive knowledge based information system for identification of stone damages for the rehabilitation of stone building components with feedback on bidding and change management embedded in BIM processes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Luig2020,

title = {Towards a Building Information Modeling system for identification and retrofit planning of stone damages},

author = {K Luig and D Mustedanagic and D Jansen and S Fuchs and R Schülbe and P Katranuschkov and A -H Hamdan and C Franzen and K Hiemann and R J Scherer },

editor = {EUROMED},

year  = {2020},

date = {2020-01-01},

journal = {International Conference on Digital Heritage},

abstract = {Nowadays building works, especially of historic buildings with facades out of natural stone, require continuous maintenance, repair and retrofit works. In order to fulfil the needs for a completely digitized natural stone retrofit process, works are to be projected, planned, conducted and cleared with instrumentation of Building Information Modeling (BIM). Due to this need, a novel knowledge-based stone damage identification system focused on natural stone damage on the basis of BIM is developed, which will present implicitly existing knowledge and information from the building survey explicitly and objectively by using semantic data structures. BIM-SIS is an adaptive damage identification system for natural stone, which allows to virtually merge different natural stone damages, recorded by different information systems and with different procedures, into a holistic damage model. This model is used to assess the damages integrative and in detail, supported by knowledge-based methods, and to develop a uniform and cost-stable remediation strategy. Therefore, the BIM-SIS methodology consists of BIMification for information processes, Ontologies for knowledge representation and Multimodels for data interoperability. The so formed continuous interoperable digital construction representation consists of separate but interlinked domain models. This model structure is then extended for remediation execution management and allows to simply incorporate subsequently detected defects during execution. The complete damage profile is the basis for all further retrofit-creation and calculation processes in BIM-SIS which will automatically lead to user customed retrofit variants presented in VR and AR.

},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Purtak2019c,

title = {Nachweisverfahren zum Erhalt des gemauerten Chemnitztal-Viaduktes.},

author = {F Purtak},

editor = {Ernst & Sohn},

year  = {2019},

date = {2019-12-31},

journal = {Bautechnik 96 (2019), Heft 7},

address = {Berlin},

abstract = {Am Beispiel der gemauerten neunfeldrigen Eisenbahn‐Bogenbrücke in Chemnitz werden für den Nachweis der Standsicherheit verschiedene Verfahren gegenübergestellt. Die maßgebende Stützlinie wird mithilfe einer speziellen FE‐Berechnungssoftware ermittelt, welche die Strukturnichtlinearität von gemauerten Konstruktionen berücksichtigt. Die Bemessungsfestigkeit des Mauerwerks unter ausmittiger Beanspruchung wird mit verschiedenen Verfahren ermittelt. Zur Kalibrierung des Berechnungsmodells wurden Belastungsversuche mit einem 600‐t‐Schwertransport durchgeführt. Der Erhalt des Chemnitztal‐Viadukts soll Ziel der Untersuchung sein 

 

Analysing the masonry Chemnitztal‐Viaduct with the aim of preservation of the railway bridge Using the example of a nine‐field railway arch bridge in Chemnitz different methods for the verification of the structural stability are compared. The determination of the relevant thrust line is determined using a special FE calculation software, which takes into account the structural non‐linearity of masonry constructions. The design resistance of the masonry under eccentric stresses is determined by various methods. For the calibration of the calculation model load tests were carried out with a 600 t heavy load. The preservation of the Chemnitztal Viaduct should be the aim of the analysis.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Purtak2019a,

title = {Vergleichsrechnungen von Bogenbrücken aus Mauerwerk},

author = {F Purtak},

editor = {Nachrechnung Brücken G von Marzahn},

year  = {2019},

date = {2019-12-31},

journal = {Teil Mauerwerk},

keywords = {},

pubstate = {forthcoming},

tppubtype = {article}

}

@article{Purtak2019,

title = {Entwurfs- und Berechnungstafeln für Bauingenieure – Abschnitt Mauerwerksbau},

author = {F Purtak},

editor = {Holschemacher},

year  = {2019},

date = {2019-12-31},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Hilbert2019,

title = {Context-dependent information space for construction information processes},

author = {F Hilbert and R Schülbe and S Fuchs},

year  = {2019},

date = {2019-01-01},

journal = {OP Conference Series: Earth and Environmental Science 323 (1), 012111},

abstract = {The planning and construction of buildings and structures is based on collaborative building information processes. The information supply of these processes is characterized by the exchange of heterogeneous domain-specific information. For the treatment of most problems in the construction industry, the information involved is rarely considered in isolation, but rather elements from different information models are linked with each other. The concept of the information space has established itself for the persistence of such linked information models. For sustainable building, the continuous use of existing information models or information spaces is indispensable. Various implementation approaches exist for information spaces in civil engineering. One approach that is currently in the initial phase of standardisation and will therefore spread further in the construction industry is the multimodel approach. For large construction projects or more complex buildings, multimodels become very large and often contain information that is unnecessary for the respective processing situation. This makes the handling of such multimodels cumbersome and slows down the acceptance. One approach to reducing multimodels is to adapt them to the information needs of the respective information process. Information processes are embedded in a task context that essentially determines the information requirements of the process. In order to anticipate such situational information needs, this paper presents a method to define context-adaptive multimodel templates based on a formalization of the context dependencies of the information requirements. These can be evaluated at the time of application towards situation-specific information requirements and form a basis for the creation of situational information spaces for the realization of a contextoriented information supply.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}