/
Frame12 – No Tension and No Compression Frame Objects✔

Frame12 – No Tension and No Compression Frame Objects✔

Example Description

This example uses a one-bay, one-story braced frame resisting a horizontal load applied at the top of the frame to test this model tension and compression limits for frame objects. In this model both tension and compression limits can be specified for frame objects. If the tension limit for a frame object is specified as 0, then the frame object can resist no tension. Similarly, if the compression limit is specified as 0 then the frame object can resist no compression.
Important Note: Typically, the tension and compression limits only apply for nonlinear analyses.
Three models are created for the example. Model A has no tension or compression limits and is run as a static linear analysis. Model B allows no compression in the compression diagonal and model C allows no tension in the tension diagonal. Models B and C are run as static nonlinear analyses. The horizontal displacement at the top of the frame and the support reactions for each model are compared with independent hand calculated results.
Important Note: The beam and braces have pinned ends in the example.



Tested Features

  •  Tension and compression limits for frame objects
  •  End releases



Library

Object Link: https://bim.aecbolt.com/objidn9tbcf4qmhc4uu5y1zvwo6.libobj

ModelOutput ParameterAEC|BOLT BIM Cloud App
SAP2000
Independent

Percent Difference

(SAP2000 vs Independent)

Percent Difference

(AEC|BOLT BIM Cloud App vs Independent)



  A




Ux (jt 2) in0.106770.106770.106770%0%
Fx (jt 1) kip-44.224-44.224-44.2240%0%
Fz (jt 1) kip-100-100-1000%0%
Fx (jt 3) kip-55.776-55.776-55.7760%0%
Fz (jt 3) kip1001001000%0%



B


Ux (jt 2) in0.241420.241420.241420%0%
Fx (jt 1) kip-100.0916-100-1000%0.09%
Fz (jt 1) kip-99.9502-100-1000%0.05%
Fx (jt 3) kip0.09156000%0.09%
Fz (jt 3) kip99.95021001000%0.05%



C



Ux (jt 2) in0.191420.191420.191420%0%
Fx (jt 1) kip -0.1321000%0.13%
Fz (jt 1) kip-100.0810-100-1000%0.08%
Fx (jt 3) kip-99.9122-100-1000%0.09%
Fz (jt 3) kip100.06491001000%0.06%

Related content

Frame13 – Simply Supported Beam on Elastic Foundation✔
Frame13 – Simply Supported Beam on Elastic Foundation✔
More like this
Frame27 – Construction Sequence Loading ✔
Frame27 – Construction Sequence Loading ✔
More like this
Frame28 – Large Axial Displacements✔
Frame28 – Large Axial Displacements✔
More like this
Frame01 - General Loading✔
Frame01 - General Loading✔
More like this
Frame16 - Tension Stiffening Using P-Delta Analysis✔
Frame16 - Tension Stiffening Using P-Delta Analysis✔
More like this
Frame04 - Rotated Local Axes✔
Frame04 - Rotated Local Axes✔
More like this