Engineering Stability: Comparing the Load Limits of Different Beam Designs
Physics and Astronomy- Grade:
- 7
- Teacher:
- GLENN OCANA
The strength and stability of structures depend heavily on their design, yet not all beam shapes distribute weight equally. This study investigates how different beam designs—triangular, X-shaped, and cross-shaped—affect load-bearing capacity. Using uniform materials and controlled weight tests, each beam was subjected to increasing loads until failure, and the maximum weight supported was recorded. Results revealed that the X-shaped design consistently supported the greatest load, followed closely by the triangular design, while the cross-shaped design bore the least. These findings highlight the critical role of geometric design in structural engineering and suggest that X-shaped beams offer superior strength for construction applications. This experiment provides practical insights for optimizing safety and efficiency in building design.
Great job! I really appreciated your clear presentation that allowed me to understand your experiment.
You pushed a popsicle stick beam to 245 lbs and documented it in photos at every stage. That level of effort and record-keeping shows you took this seriously.
Citing Hibbeler’s Structural Analysis to explain moment of inertia shows you read real engineering material. That stands out at this level.
Your conclusion connects the X-beam’s performance to the physics of force distribution through diagonal members. That is the right way to explain a result.