Work related problem: Yield strength as well as max load

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Discussion Overview

The discussion revolves around determining the yield strength and maximum load capacity of a hypothetical wooden street pole with a steel bracket mounted using bolts and bands. Participants are asked to provide equations and analyses related to stress and potential weaknesses under various wind loads.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant requests equations and a breakdown for calculating yield strength and maximum load capacity for a wooden pole with a steel bracket.
  • Another participant questions the legitimacy of the scenario, asking about city permissions and the nature of the load to be supported.
  • A later reply clarifies that the scenario is hypothetical and emphasizes the need to consider high wind speeds in the load calculations.
  • Concerns are raised about inconsistencies in the description of how the bracket is mounted, specifically regarding the use of bolts versus bands.
  • One participant suggests that the request for equations indicates a lack of understanding of mechanical analysis and encourages clarification of the overall goal.
  • A request is made for a diagram to illustrate the forces and loads on the proposed structure to facilitate further discussion.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the specifics of the scenario, with some questioning its feasibility and others focusing on the technical aspects of load calculations. The discussion remains unresolved regarding the exact requirements and assumptions of the problem.

Contextual Notes

There are unresolved issues regarding the description of the mounting method (bolts vs. bands) and the need for a clearer understanding of the intended application and load conditions. The hypothetical nature of the scenario may limit the applicability of provided equations.

kardai
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TL;DR
Yield Strength value as well as maximum load capacity. Need equations and possibly a break down on how to solve the issue.
Summary: Yield Strength value as well as maximum load capacity. Need equations and possibly a break down on how to solve the issue.

So let's say I have a Wooden Street pole and I want to mount a steel bracket using metal bands to the street pole. The bracket will be mounted to the beam using 4 steel bolts with washers. The bracket will have a perpendicular steel beam attached. I'm looking to measure the max load capacity the bracket can withstand as well as the yield strength at various load capacities. Analyzing the stress and areas of weaknesses. The load will be various wind speeds. Please include equations on how to determine these results.
 
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Welcome to the PF. :smile:

Does the city know that you are going to be mounting something to one of their poles? What kind of load are you wanting to support? What will be below the load in case the support fails (people?).
 
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This is a hypothetical. Nothing will be actually mounted to city poles. The load will need to take into account the beam connected to the bracket as well as high wind speed loads.
 
It sure sounds more than hypothetical with exactly 4 bolts.

It is also self-contradictory. It says the bracket is mounted with bolts, and that it is mounted with bands. Which is it?

If you are expecting equations so that you can plug numbers into a formula and calculate an answer on a calculator, then your understanding of mechanical analysis is not good enough.

How about you just tell us what you are trying to accomplish and see if we can help?

If it is homework, then it should be posted on a homework forum and you need to show us your work.
 
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Likes   Reactions: russ_watters
Please provide a diagram showing what you think the forces/loads/reactions might be on your purposed structure; and we will then go from there.
 

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