Friction bolts in IDEA StatiCa

I don&#;t want to devote too much time to compare the models of bolt components.

Goto TRM to know more.

Maybe a little bit later I could try to write an additional post about these models. By the way, you are always welcome to let me know if you are interested!

The main thought here is that the results depend on bolt model. Not only code-check results, but the stress-displacements picture and distribution of forces in bolts also.

If you want to learn more, please visit our website Friction Bolt.

Solution

Where bolts are solidly cast into concrete - i.e. are set to Non-Adjustable - the bolts can be relied upon to resist shear.

In this case, the design may be based on effective bearing length in concrete of 3d and an average bearing stress of 2 fcu.  For more about this see the related article linked at the bottom of this article.

Where bolts are not solidly cast into concrete i.e. set to are Adjustable, some allowance can be made for a reduction of the bearing on the bolts capacity via the factors "Factor * d" , which adjusts the bolt bearing length, and "Factor * fcu" which adjusts the concrete bearing stress.  The default value of both factors is 1.0.

• Factors of 3 and 2 respectively provide the same resistance as if the bolts were solidly cast (Non-Adjustable) - this would be un-conservative.
• Factors of 0 and 0 assume the bolts provide no shear resistance  - this would be conservative.

The values to use for your connection is a matter for your engineering judgement - we cannot provide specific advice on the values to be used.

For more Split Set Mining Systemsinformation, please contact us. We will provide professional answers.