FELine

An FELine object is used to model beams, columns, and other structural elements that connect two Node objects. To create an FELine object, two Node objects and a Section object are required. The beta parameter represents the angle of rotation of the section around the Z-axis and is expressed in radians.

Example Syntax:

Example:

<O N="FELineObject1" T="Project" Category="FEM Objects" TransAlignRule="Right"> <!-- created by ParamML Examples on 06.02.2023 --> <O N="AnalyticalLine1" T="FELine" Type="@Beam" Node1="@No1|Node" Node2="@No2|Node" Section="@ColSec1|Section" Group="@NULL|FEGroup" /> <O N="AnalyticalLine2" T="FELine" Type="@Beam" Node1="@No3|Node" Node2="@No4|Node" Section="@ColSec2|Section" Group="@NULL|FEGroup" /> <O N="GP1" T="Group" Y="0"> <O N="No1" T="Node" X="0" Y="0" Z="0" /> <O N="No2" T="Node" X="0" Y="0" Z="height" /> </O> <O N="GP2" T="Group" Y="0"> <O N="No3" T="Node" X="0" Y="100" Z="0" /> <O N="No4" T="Node" X="0" Y="100" Z="height" /> </O> <P N="height" V="60" /> <P N="width" V="10" /> <P N="depth" V="20" /> <P N="th" V="2" D="Wall thickness of the tube" /> <O N="Li1" T="Line" Y="0"> <O T="Point" X="0" Y="0" Z="0" /> <O T="Point" X="0" Y="0" Z="height" /> <O N="ColSec1" T="Section"> <P N="Material" V="C20/25" T="Material" /> <O T="Shape"> <O T="Point" X="-width/2" Y="-depth/2" Z="0" /> <O T="Point" X="-width/2" Y="depth/2" Z="0" /> <O T="Point" X="width/2" Y="depth/2" Z="0" /> <O T="Point" X="width/2" Y="-depth/2" Z="0" /> </O> </O> </O> <O N="Li2" T="Line" Y="100"> <O T="Point" X="0" Y="0" Z="0" /> <O T="Point" X="0" Y="0" Z="height" /> <O N="ColSec2" T="Section"> <P N="Material" V="C20/25" T="Material" /> <O T="Shape"> <O T="Point" X="-width/2" Y="-depth/2" Z="0" /> <O T="Point" X="-width/2" Y="depth/2" Z="0" /> <O T="Point" X="width/2" Y="depth/2" Z="0" /> <O T="Point" X="width/2" Y="-depth/2" Z="0" /> </O> </O> </O> </O>

Open Analytical View

To view this example in the library, see (https://openbrim.org/platform/?application=inc&author=ParamML_Examples_OpenBrIM+Platform&obj=objidhbqjlrqadt4eocjjjljzt)

Example:

<O N="FELineObject2" T="Project" Category="FEM Objects" TransAlignRule="Right"> <!-- created by ParamML Examples on 06.02.2023 --> <O N="Frame" T="Repeat" S="0" E="4" I="1" CTRL="j" j="0"> <O N="Geometry" T="Group"> <P N="h_col" V="50" D="column height" /> <P N="b_col" V="1" D="column width" /> <P N="d_col" V="1" D="column depth" /> <P N="b_bm" V="1" D="beam width" /> <P N="d_bm" V="1" D="beam depth" /> <P N="s_col" V="15" D="column spacing" /> </O> <O N="Column3D" T="Line"> <O T="Point" X="j* s_col" Y="0" Z="0" /> <O T="Point" X="j* s_col" Y="0" Z="h_col" /> <O N="ColSec1" T="Section"> <O T="Point" Y="d_col/2" X="b_col/2" /> <O T="Point" Y="d_col/2" X="-b_col/2" /> <O T="Point" Y="-d_col/2" X="-b_col/2" /> <O T="Point" Y="-d_col/2" X="b_col/2" /> </O> </O> <O N="Beam" T="Line"> <O T="Point" X="(j-1) * s_col" Y="0" Z="h_col" /> <O T="Point" X="j * s_col" Y="0" Z="h_col" /> <O N="BeamSec1" T="Section"> <O T="Point" X="b_bm/2" Y="d_bm/2" /> <O T="Point" X="b_bm/2" Y="-d_bm/2" /> <O T="Point" X="-b_bm/2" Y="-d_bm/2" /> <O T="Point" X="-b_bm/2" Y="d_bm/2" /> </O> </O> <O N="NodeBottom" T="Node" X="j* s_col"> <P N="Tx" V="-1" /> <P N="Ty" V="-1" /> <P N="Tz" V="-1" /> <P N="Rx" V="-1" /> <P N="Ry" V="-1" /> <P N="Rz" V="-1" /> </O> <O N="NodeTop" T="Node" X="j* s_col" Z="h_col" /> <O N="L1" T="FELine" Y="100"> <P N="Node1" V="NodeBottom" T="Node" /> <P N="Node2" V="NodeTop" T="Node" /> <P N="Section" V="ColSec1" T="Section" /> <P N="Beta" V="0" /> </O> <O N="LB" T="FELine"> <P N="Guard" V="j .GT. 0" /> <P N="Node1" V="Frame[j-1].NodeTop" T="Node" /> <P N="Node2" V="Frame[j].NodeTop" T="Node" /> <P N="Section" V="BeamSec1" T="Section" /> <P N="Beta" V="0" /> </O> </O> </O>

Open Analytical View

To view this example in the library, see (https://openbrim.org/platform/?application=inc&author=ParamML_Examples_OpenBrIM+Platform&obj=objidhmcw7okqstd8br6j3dgpnj)

Rigid diaphragms have extremely high in-plane stiffness properties, so they do not experience membrane deformation or generate the associated forces.

Given these benefits, we can use rigid diaphragms for calculations in our projects.

In OpenBrIM's Finite Element Analysis, rigid diaphragms can be defined “Rigid Line” as shown in the example.

Example:

Parameters of FELine Object: