Postopki avtomatizirane izdelave 4D in 5D BIM modelov

The use of building information modelling has provided a means to improve overall product quality, accurate quantity determination and improved scheduling, reducing total project uncertainties and costs. Building Information Modelling (BIM) has recently gained much attention in the construction industry. Due to the complexity of construction projects, it is essential to provide BIM models with construction automation of schedules and cost estimating that can automatically update the changes during the construction process. Defining workflow for automated generation of optimised 4D/5D BIM simulation and analysis is still a big challenge in the AEC field. This thesis suggests a workflow for creating the 4D/5D BIM model that starts with generating a proper QTO based on the desired properties and parameters of building elements then establish with the cost estimating process through the defined QTO and finally automate the generation of the construction schedules (Construction sequencing) of the project. One of the main focuses is also the integration of this workflow with the least amount of software to avoid the loss of information when transferring the information model between different platforms. Bexel Manager software has been mainly used to apply this workflow. Two case studies of small multi-storey buildings have been used to test the workflow, one of the case studies has only access to the IFC file, and the other is modelled from scratch in the authoring software.Uporaba informacijskega modeliranja zgradb (BIM- Building Information Modelling) omogoča kakovostnejšo graditev v smislu končnega produkta, zanesljivejšega izračuna gradbenih predizmer (količin), boljše časovno planiranje izvedbe gradnje ter s tem zmanjšanje negotovosti in stroškov projekta. Tako BIM pridobiva vse več pozornosti tudi na področju gradbene operative oziroma v fazi priprave na gradnjo in gradnje same. Zaradi kompleksnosti gradbenih projektov je ključnega pomena avtomatizacija postopka planiranja izvedbe (4D) in ocene stroškov (5D), ki še vedno predstavlja izziv za vse udeležence graditve (AEC -architecture, engineering and construction). V nalogi je podan predlog postopka izdelave 4D / 5D modela BIM, ki se začne z izdelavo gradbenih predizmer oziroma popisa količin na osnovi izbranih parametrov konstrukcijskih elementov, sledi postopek ocene stroškov s popisom del in na koncu avtomatizira terminsko planiranje gradnje (zaporedje tehnoloških postopkov). S ciljem preprečevanja izgube informacij pri prenosu informacijskega modela med različnimi orodji je implementacija predlaganega postopka izvedena z minimalnim številom različnih orodij. Predvsem je bila uporabljena programska oprema Bexel Manager, njegova preveritev pa je bila izvedena na dveh primerih več etažnih zgradb. Prvi primer je bil izdelan na osnovi IFC datoteke že izdelanega modela zgradbe, drugi pa temelji na lastno izdelanem modelu 3D BIM modelu zgradbe