×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*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.

# I have a structure which has a floo

## I have a structure which has a floo

(OP)
I have a structure which has a floor load capability of 1500 kg/m^2. On the ground, there are columns at about 4.8 meter apart. On these columns there is a floor with holes, and on this floor there are "inverted T" structures placed, they have steel strengthening and are approx. 20 cm. wide and 120 cm apart. On this "inverted T" structure I may place 1500 kg/m^2. The total area on which machinery etc. may be placed is about 20x25 m^2. I have machinery that when total mass of it is divided by the area it occupies, it exceeds the loading capability by far.
When I add up all the mass in the total area and then divide it by the total area (20x25) it is ok.
Which way is the correct way to calculate? Or are both faulty?
Wim32

### RE: I have a structure which has a floo

In most cases, for reinforced concrete, the design for a general area loading is sufficient to handle isolated concentrated loads.  As an example, you might have a parking garage with design loadings of, say, 700 kg/m^2 yet a small truck using the garage might have a wheel load of perhaps 10 times that value.

To be safe, you should check the concentrated load condition, particularly for shear effects.  If the machinery is rotating type, don't forget to include vibratory effects.

#### 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.

#### Resources

Research Report - How Engineers are Using Remote Access
Remote access enables engineers to work from anywhere provided they have an internet connection. We surveyed our audience of engineers, designers and product managers to learn how they use remote access within their organizations. We wanted to know which industries have adopted remote access, which software they are using, and what features matter most. Download Now
eBook - Managing the Context of Product Complexity Using the Digital Twin
Keeping track of changes to complex products is difficultâ€”think Aerospace & Defense equipment, new generations of commercial aircraft, and software-based automobiles. A new way to managing the digital context of the physical product is required and the answer is the Digital Twin. This ebook explores the opportunity available for Operations and Maintenance for the Digital Twin. Download Now
White Paper - Trends in Industrial Filtration
Substantial progress has been made in filtration technologies in recent years. New filter media materials, designs and processes have led to filters that are more efficient, reliable, compact and longer lasting. This white paper will discuss the various trends that are impacting operational responsibilities of MROs today and the resources that are available for staying up-to-date on the latest filtration solutions. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!