×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Concrete Slab Point Load vs Articulating Boom Load

Concrete Slab Point Load vs Articulating Boom Load

Concrete Slab Point Load vs Articulating Boom Load

(OP)
We are building a 2 story mall with underground parking. The structural engineer told me that the poured concrete slabs of level 1 and level 2 are capable of holding taking 35kN or 7850lbs point load. "The maximum point load allowed on the floor will be 35kN or 7850lb without revising the current slab design. This load limit can be the criteria for the scissor lift selection."

The boom/scissor lifts I am looking at give me a weight of 15,500 lbs. However, I believe that I should divide this by 4 (4 wheels) to get the point load of the machine. Is this correct?

Am I over the limit here?


Thanks

Haz

RE: Concrete Slab Point Load vs Articulating Boom Load

If slab on grade then yes you can divide it by 4 (Sometimes I only divide by 3 to account for unbalanced loading)

If structural slab, then no you can't just divide by four but rather need to indicate the loading to the engineer and get him to provide more guidance for the specific loading condition.

RE: Concrete Slab Point Load vs Articulating Boom Load

(OP)
thank you jayrod12. I will ask him to calculate it based on the specifications of the machine

RE: Concrete Slab Point Load vs Articulating Boom Load

Even if it's slab on grade, multiple wheels are close together and will interact. It's best to ask what they meant in these cases.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources