Complex Usage of 4d Information Modelling Concept for Building Design, Estimation, Sheduling and Determination of Effective Variant

Abstract

With the growth of information technologies in the field of construction industry, the concept of CAD (Computer Aided Design), which denotes just design operations using a computer acquires a new meaning and changes the contents lightening design process based on product modelling and further numerical simulation construction process and facility managing. New definitions as Building Information Modelling (BIM) and Product Lifecycle Management (PLM) are more and more usable as the definition of a new way approaching the design and documentation managing of building projects. The presented computer aided design technology based on the concept of graphical ‐ information modeling of a building, is combined with resource demand calculations, comparison of alternatives and determination of duration of all the stages of investment project life. The software based on this combined 4D PLM model is to be created as a means to manage effectively the investment project, starting from planning, designing, economical calculations, construction and afterwards to manage the finished building and to utilize it.

The use of a virtual building design and construction model for developing an effective project concept in 5D environment

“…This results in the creation of better working conditions for building teams, time saving, higher quality of work and better buildings because of the informed decisions made in the process. Using of BIM ensures that the entire lifecycle of the building (design/ construction/operation) is considered [21]. All information about the building and its lifecycle, defining and simulating the building, its construction and maintenance, using the integrated tools, is included.…”

“…The complete cycle is being executed through the stages of the considered 5D concept model (Fig. 2) in order to make the best solution, while there is a continual exchange of the cycle information flow between the stages, encouraging the selection of the most effective variant [21]. Structurally, the 5D concept model is divided into levels as follows: at the first level (cells in bold), the stages and their interrelations are presented; at the second level (cells shown by a dotted line), the initial data (and procedures) are given; the third level (cells with arrows) presents the actions and processes taking place; the fourth level (big cells) shows the obtained results as well as some benefits and advantages; at the fifth level, the effectiveness criteria of the stages are obtained, which are further used for multiple criteria evaluation of the construction project alternatives.…”

“…Segmented work at the design stages is replaced by a continuous process. This is achieved by changing the design technology substantially and switching from the development of a set of 2D (two-dimensional) drawings to the development of a 3D computer-aided model of a building, comprising all the constituent parts of the design process, such as architectural, structural, mechanical, technological and construction process management and evaluation [14,15,21,32].…”

“…The third step is the calculation of the duration of particular construction processes (and the duration of the whole project implementation) as well as the association of 3D model elements with a time schedule for graphical simulation of construction project implementation [15,16]. The fourth step is the evaluation of possible solutions or even the alternative project by using a multicriteria decision-making system [13,21].…”

“…obtained from the information model of construction [1]. An estimate is obtained in the file format of SES2004 [21], and can be edited relying on the wide functional possibilities of this application, as well as the largest databases of work specifications and construction resources (materials, labor and machinery) [3]. Since there are references to structural element (in the model) and estimate, anyone can get any cost-related and expenditure-related information for certain element.…”