Calculating Vertical Load on a Gantry Beam: Tips and Tricks | Physics Forum

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SUMMARY

This discussion focuses on calculating vertical loads on a gantry beam, specifically determining reaction forces of 114 kN and 182 kN. Participants emphasize using static equilibrium principles, including the summation of vertical forces and moments, to solve for these reactions. The maximum bending moment is noted as 330 kNm, with a specific equation provided for calculating it. A suggestion is made to create a section cut at x = 7 m to facilitate the calculation of moments at that section.

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cash168
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Homework Statement


Hi there! I have recently studying how to design gantry. but I got one problem about how to calculate the vertical load on the beam. can anyone help me and let me know how to find the Reactions 114kn and 183kn in the picture. and I know how to find the max bending moment using the equation. but really doesn't know how to find the 182 kn on this question. can Anyone help me. thanks. many many thanks

the picture link https://www.physicsforums.com/showthread.php?t=386476
 
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Use static equilibrium (summation of vertical forces, and summation of moments about any point) to solve for the reaction forces.
 
THX mate. I know the max bending moment 330KNm I can use Mv = 2Wv/L*(L/2_aw/4)^2+Wg*L/8. but how to find 182KNm? thank you very much mate.
 
cash168: Create a section cut at x = 7 m, and compute a summation of moment on the left or right side of the section cut to obtain the moment at the section cut.
 
nvn said:
cash168: Create a section cut at x = 7 m, and compute a summation of moment on the left or right side of the section cut to obtain the moment at the section cut.

hi mate. not quite understand. can you show me , how to find the 182KNm or the 114KN Reactions . many thanks
 
cash168: Study your textbook and study the example problems in your textbook. Show your calculations, and then someone might check your math.
 

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