Analysis model objects

Tekla Structures
2021
Tekla Structures

Analysis model objects

Analysis model objects are model objects that Tekla Structures creates from physical model objects or on the basis of analysis part connectivity into an analysis model.

Object

Description

Analysis part

A representation of a physical part in an analysis model.

In different analysis models, a physical part is represented by different analysis parts.

Analysis bar

An analysis object that Tekla Structures creates from a physical part (beam, column, or brace) or from a part segment.

Tekla Structures creates more than one analysis bar from a physical part if:

  • The part is a polybeam

  • The part cross section changes non-linearly

An analysis bar consists of one or more analysis members.

Analysis member

An analysis object that Tekla Structures creates between two nodes.

Tekla Structures creates more than one analysis member from an analysis bar if the bar intersects with other bars and needs to be split.

Every physical part that you include in an analysis model produces one or more analysis members. A single physical part produces several analysis members if the physical part intersects with other physical parts. Tekla Structures splits the physical part at the intersection points of the analysis axes. For example, a physical model beam that supports two other beams is split into three analysis members between nodes.

Analysis area

An analysis object that represents a plate, slab, or panel in an analysis model.

Analysis element

An analysis object that the analysis application creates from an analysis area.

The analysis application creates an element mesh that includes several analysis elements.

Analysis node

An analysis object that Tekla Structures creates at a defined point in an analysis model on the basis of analysis part connectivity.

Tekla Structures creates analysis nodes at:

  • The ends of members

  • The intersection points of analysis axes

  • The corners of elements

You can also manually add analysis nodes and merge them.

Rigid link

An analysis object that connects two analysis nodes so that they do not move in relation to each other.

Rigid links have the following properties in Tekla Structures analysis models:

  • Profile = PL300.0*300.0

  • Material = RigidlinkMaterial

  • Density = 0.0

  • Modulus of elasticity = 100*109 N/m2

  • Poisson’s ratio = 0.30

  • Thermal dilatation coefficient = 0.0 1/K

The analysis application that you use may model rigid links by dedicated rigid link objects.

You can also manually add rigid links.

Rigid diaphragm

An analysis object that connects more than two analysis nodes that move with exactly the same rotation and translation.

Some analysis applications work on analysis members whereas others work on analysis bars. This also affects how analysis models are shown in Tekla Structures model views. Either member numbers or bar numbers are shown.

The dark blue circles close to the analysis part ends represent pinned part ends.

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