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Crane Runway Beam Design

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About This Spreadsheet
This spreadsheet is for designing overhead bridge crane crane load and crane runway beam based on the following design codes
  • AISC 360-10 LRFD 2010 and ASD 2010 code
  • AISC ASD 1989 code
  • CSA S16-14 code
  1. The spreadsheet is capable to design up to 2 cranes running in the same aisle at the same time.
  2. For crane runway beam section, the user has option of
    • AISC / CISC W or S section, CISC WWF section
    • AISC / CISC W or S section combined with cap plate
    • AISC / CISC W or S section combined with cap channel
    • Any custom W or W and C combined section
    The custom section option gives user great flexibility to select the crane runway beam section and optimize the design.
  3. The spreadsheet also outputs the crane loads imposed on building column for user to relay to other structural analysis software for building structural analysis
  4. The spreadsheet can design both top running and underhung overhead bridge crane runway beam
The Unique Features of This Spreadsheets
  1. The spreadsheet is capable to design up to 2 cranes running in the same aisle at the same time.
  2. The spreadsheet is capable to get accurate member forces from 2~8 concentrated moving loads for beam section design.
    Most other similar crane beam design programs use the formula of 2 concentrated moving loads to get the beam member forces. For large tonnage crane it’s common that there are 4 wheels on one side of bridge which means there are 4 concentrated moving loads imposed on the simple span beam. Converting 4 concentrated moving loads to 2 to use the formula can overestimate the moment up to +18% depending on the beam span and load.
    Civilbay spreadsheet calculates the member force using true moving load, not the formula or approximate approach, as such it can achieve the most economical design.
  3. The spreadsheet calculates beam bending coefficient Cb to account for the non-uniform moment distribution along the beam unsupported length. Most other similar crane beam design programs assume Cb =1.0 as a conservative approach but it may under estimate the beam LTB resistance capacity up to 20%. CivilBay program calculates the accurate beam LTB capacity allowed by design codes , as such it can achieve the most economical design.
  4. The spreadsheet is capable to design any custom crane beam section which gives user great flexibility to select the crane runway beam section and optimize the design.