- #1
Jerry Graham
- 1
- 0
I have a W24 X 94 beam (50KSI) that is loaded with a 3,500,000 in-lb moment load at each end. How do i calculate the maximum length of the beam that can support the moment loads?
How do I Calculate Maximum Length for a W24 X 94 Beam with Moment Loads?
In summary, the conversation revolves around calculating the maximum length of a loaded beam and considering different failure modes. The application and potential consequences of the beam failing are also discussed. It is suggested to calculate the beam length for each failure mode and choose the shortest length as the answer, and to consider factors such as breaking apart, yielding, and excess deflection when defining failure. The engineering toolbox website is recommended as a resource for beam calculations.
- #2
jrmichler
Mentor
- 2,239
- 2,992
This sure looks like a homework problem, although your profile says not in school.
Consider all possible failure modes - allowable deflection, buckling, etc. Calculate the beam length for each failure mode. The shortest length is your answer. Hint: Take a close look at your end support conditions.
Consider all possible failure modes - allowable deflection, buckling, etc. Calculate the beam length for each failure mode. The shortest length is your answer. Hint: Take a close look at your end support conditions.
- #3
berkeman
Mentor
- 67,034
- 19,856
Welcome to the PF.Jerry Graham said:
What is the application? What are the potential consequences of the beam failing?
- #4
Dr.D
- 2,412
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You really have to define what constitutes failure. @jrmichler pointed to this, but I'd like to be more explicit. Does it have to break apart to be considered a failure, it is yielding the criterion of interest? Excess deflection is also often considered failure.
- #5
osilmag
Gold Member
- 232
- 54
The engineering toolbox has a useful section on beams:
https://www.engineeringtoolbox.com/beam-stress-deflection-d_1312.html
https://www.engineeringtoolbox.com/beam-stress-deflection-d_1312.html
1. What is the definition of beam length?
The beam length refers to the distance between the supports or points of attachment on either end of a beam. It is an important measurement in structural engineering and can affect the strength and stability of a structure.
2. How do you calculate beam length?
To calculate beam length, you need to measure the distance between the two supports or points of attachment. This measurement can then be used in various equations and formulas to determine the strength and load-bearing capacity of the beam.
3. What factors can affect beam length?
The main factors that can affect beam length include the type of material used, the size and shape of the beam, the weight and distribution of the load, and the type of support or attachment points. Other factors such as temperature, humidity, and external forces can also impact beam length.
4. How does beam length affect the strength of a structure?
The longer the beam length, the more likely it is to experience bending or deflection under a load. This can weaken the structure and potentially lead to structural failure. Additionally, longer beam lengths may require more support or reinforcement to maintain structural integrity.
5. Can beam length be adjusted after construction?
In most cases, beam length cannot be easily adjusted after construction. However, in some cases, additional supports or reinforcements can be added to existing beams to increase their length and strength. It is important to consult a structural engineer before making any modifications to a structure's beam length.
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