When you model in Tekla Structures , you create and work with different types of model objects. In most cases, a model objectobject that is represented in a model

A model object is either created in a model or imported into it.

represents a building objectobject that represents something that will exist in the real building or be closely related to it

A building object is always created in a model, but it is also represented as a drawing object in a drawing in which its properties can be modified.

that will exist in the real building or structure, or that will be closely related to it. A model object can also be a modeling aidobject that represents information that is only relevant in building a model

For example, grids, points, construction lines, construction circles, and reference models are modeling aids.

that represents information that is only relevant when you are creating the model. Model objects are either created in the model or imported to it.

Examples of model objects include:

• Parts and items
• Bolts and welds
• Reinforcement and embeds
• Surface treatment and surfaces
• Cuts , fittings , holes , and chamfers
• Pour breaks
• Loads

Model objects may also be created by components.

You can use the following modeling aids in the model:

• Grids and grid lines
• Construction objects and points
• Reference models

You can combine model objects to bigger entities by creating assemblies , cast units , and pour units.

You can manage model objects by using object groups , Organizer , and other planning tools.