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The buckling results are only returned when a buckling analysis is requested in the settings object. Otherwise the string "disabled" is returned.

Result Key | Type | Description |
---|---|---|

buckling | Object | Contains the buckling results for the analysis. |

The buckling results object is structured as shown in the table below.

Reaction Key | Type | Unit | Description |
---|---|---|---|

message | String | - | A status message for the buckling solution. |

factor | Number | - | The lowest buckling factor of the structure. A number less than 1 indicates buckling is occuring. |

effective_lengths_y | Object | Length | Effective Length in each member's local y-axis. |

effective_lengths_z | Object | Length | Effective Length in each member's local z-axis. |

critical_loads | Object | Force | The critical load of each member (i.e. the load that will induce buckling in the member). If the member is not in compression then a string "NC" will be returned meaning "No Compression". |

max_translation_member | Number | - | The ID of the member that has the maximum buckling translation. |

max_rotation_member | Number | - | The ID of the member that has the maximum buckling rotation. |

{ "buckling": { "message": "Buckling load factor of the structure is 1.341.\nWarning: The structure may be close to buckling as a factor of less than 1 indicates buckling.", "factor": 1.3411736456563175, "max_translation_member": 1, "max_rotation_member": 1, "critical_loads": { "1": 203.23998428968824, "2": 25.576120533426135, "3": 29.882424912109162, "4": "NC", "5": 1.2970915704205446, "6": 0.23944467398506777, "7": 0.2388156707974292 }, "effective_lengths_y": { "1": 3.3231746899814447, "2": 9.367860456425271, "3": 8.666621490172636, "4": "NC", "5": 27.43891516914815, "6": 63.863051302795085, "7": 63.94709864999246 }, "effective_lengths_z": { "1": 5.565196493250399, "2": 15.688005905475913, "3": 14.513667208300324, "4": "NC", "5": 100.68320447342175, "6": 234.33640189411182, "7": 234.64480170478782 } } }