**3.2 BIM in construction**

An analysis of conflicts detection between distinct projects was also exposed to the audience. The BIM modeling tools allow the overlap of three disciplines (architecture, structures and mechanic) and support the definition of each component by direct analysis of conflicts, identified by the system with the presentation of inconsistency messages [17]. There are several software with conflict analysis-oriented capability, namely Tekla BIMsight, Navisworks and Solibri Model Checker tools. After running any of these systems, the modeler adjusts each conflict situation over the BIM model. In the study case shown in the course, the models of water system and structures were overlapped and an analysis of inconsistency was applied (**Figure 5**) [18].

In addition, a foundation case was analyzed concerning conflicts between structural elements and piping components (**Figure 6**) [19]. Using Navisworks and Tekla *BIM Academic Training Course to Enhance Construction Professional's Skills DOI: http://dx.doi.org/10.5772/intechopen.105221*

#### **Figure 5.**

*Analyses of conflicts between structures and mechanic models [18].*

#### **Figure 6.**

*Analyses of conflicts in the foundation level [19].*

BIMsight, a set of conflicts were listed and visualized. The conflicts detected were after adjusted accordingly, in the modeling system, in order to obtain correct situations (**Figure 7**) [18].

The course also illustrates how to generate a 4D BIM model, relating to the construction process of a buildings. First, the complete 3D BIM model of the structural project must be defined and after the constructive sequence planning (phases and periods of implementation or placement) and allocated human resources must be established in the form of a Gant map (**Figure 8**) [20].

The 4D model is then created in the Navisworks software, a BIM viewer. The BIM model, representing the structural project, is exported from the modeling system

**Figure 7.** *Changes were performed in a BIM modeler software [18].*


#### **Figure 8.**

*Structural BIM model and the Gant map of its construction [20].*

to the BIM viewer, performed in the native format of data, allowing a height level of interoperability. In addition, the construction-planning file (Gantt map) is transferred from the Ms. Project system to the Navisworks. Next, it is necessary to associate the elements of the imported model, forming groups (sets), according to the activities of the schedule (**Figure 9**) [21].

Obtaining the correct and detailed 4D model, the simulation of the construction can be visualized (**Figure 10**).

