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Effective control of unanticipated on-site events : a pragmatic, human-oriented problem solving approach
Aleš Magdič, Danijel Rebolj, Nataša Šuman, 2004, izvirni znanstveni članek

Opis: Unanticipated events on building sites are inevitable. The frequency of unanticipated events is usually high due to the inherent complexity and dynamics of construction projects. A proper mobile interactive personal network can make use of the rich knowledge and experience of site staff, to handle and effectively resolve on-site problems caused by unanticipated events. Immediate on-site problem solving significantly impacts subsequent project characteristics and leads to a more productive organizational processes as a whole. This paper focuses on the importance of interactive personal communication as a basis for immediate on-site problem solving. For communications support, a human-oriented pragmatic solution in the form of a mobile, interactive, context-sensitive personal network is presented.
Ključne besede: civil engineering, information technology, mobile computing, project management, construction site, rapid communication
Objavljeno: 01.06.2012; Ogledov: 1187; Prenosov: 25
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3.
Towards a virtual product model
Andrej Tibaut, Danijel Rebolj, 2003, izvirni znanstveni članek

Opis: Today, many researchers working on the information management process in construction recognise the problem of modelling complex product-related data structures. Furthermore, many experts doubt whether an all-inclusive-product-model is a solution for an integrated information environment that should efficiently support the life cycle of a product. It seems that rich experiences in product modelling gathered during the last decade do not necessarily lead to better models but rather to the awareness the more complex the product models are, the more rgid and less usable they become in practice. The paper first summarises some deficiencies of complex product models and then introduces a new conceptual solution, called "virtual product model", which is based on the on the decomposition of a conventional product model. The concept investigates the dissharmony in the structure and semantics of distributed (virtual) parts by applying agent technology and then the tuple space communication model.
Ključne besede: gradbeništvo, gradnja objektov, informacijska tehnologija, informacijski sistemi, baze podatkov, integracija, management informacij, upravljanje znanja, izmenjava podatkov, produktni modeli, virtualni produktni modeli, civil engineering, building construction, information technology, information systems, databases, integration, information management, knowlege management, data exchange, product models, virtual product models
Objavljeno: 10.07.2015; Ogledov: 1089; Prenosov: 39
URL Povezava na celotno besedilo

4.
Mixed-integer nonlinear programming based optimal time scheduling of construction projects under nonconvex costs
Rok Cajzek, Uroš Klanšek, 2016, izvirni znanstveni članek

Opis: Optimal project scheduling under nonconvex time-cost relations represents a challenging problem in construction management. The nonconvex time-cost relations may appear in a construction project when several different duration options are available for its activities due to alternative technological processes enabled for their realization or wide accessibility of production resources. The source of nonconvexity of the project scheduling optimization problem can also be the project penalty- or bonus-duration relations arranged within the construction contract. The aim of this paper is to present the mixed-integer nonlinear programming (MINLP) based optimal time scheduling of construction projects under nonconvex costs. For this purpose, the MINLP model was developed and applied. A numerical example from literature and an example of construction project time-cost trade-off analysis under practical nonconvex penalty function are given in the paper to demonstrate advantages of MINLP optimization. The example from literature first presented the capability of the MINLP approach to obtain the optimal solution for difficult, highly combinatorial nonconvex discrete project scheduling problem. Thereupon, the following example revealed that the optimal project time-cost curve may take very nonuniform shape on account of discrete nature of activity direct cost options and nonconvex relation between project duration and total cost. In this way, the presented study intends to provide practitioners with new information from the field of optimization techniques for project scheduling as well as an alternative view on performance of total cost when project duration is changed.
Ključne besede: extreme environments, construction management, discrete optimization, mixed-integer nonlinear programming, nonconvex costs, time scheduling
Objavljeno: 12.07.2017; Ogledov: 326; Prenosov: 204
.pdf Celotno besedilo (807,33 KB)
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5.
Survey of accomplishments in BIM implementation in Croatia, the Czech Republic, Germany, and Slovenia
Mario Galić, Vaclav Venkrbec, Franziska Chmelik, Immo Feine, Zoran Pučko, Uroš Klanšek, 2017, izvirni znanstveni članek

Opis: Building information modelling (BIM) may currently be considered the fastest developing concept in the field of construction management, aiming to become a global standard. Although the roots of the concept date back to the mid-1970s, some original expectations are still missing from its implementation. There has been a time gap between its theoretical and practical implementations. While the simultaneous development of information technologies is one reason for the implementation delay, other reasons remain unclear. This paper analyzes the gaps between theoretical and practical BIM application, as well as the legislation regarding BIM implementation in four countries (in alphabetical order: Croatia, the Czech Republic, Germany, and Slovenia). The paper additionally presents a survey of current practical BIM applications as well as general and theoretical feedback from construction projects that implemented BIM.
Ključne besede: construction industry, implementation, project management, survey
Objavljeno: 12.01.2018; Ogledov: 385; Prenosov: 149
.pdf Celotno besedilo (694,12 KB)
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