Hello,
I have something similar to the following structure:
In order to verify bending ULS, I calculated the effective width of the web, compounded with flange and took its Md and Nd.
My question is: When verifying Shear ULS, do I have to use the same section (flange + effective width) or...
Hello,
I have found in several publications the expression for the Vertical displacement under a circular rigid foundation under a vertical load, P (in other words if I am not wrong: vertical displacement under an area carrying an uniform load, p):
It is derived from Boussinesq half space...
Hello,
Usually, the reinforced bars have been anchored in a way that until the complete anchorage length is not developed, the bars do not contribute (see following figure):
But, I am wondering if it can be taken into account some type of contribution, in a linear way or other, since the...
While according to Eurocde 2, section 5.10.8, at ULS, it is necessary partial factors for preload (being 1.2 and 0.8). In the ACI code partial factor for preload is equal to 1.0 (only it is equal to 1.2 in anchorage zones).
Why is there such a difference? Does it exist any other factor...
Hello all,
I have a doubt about stress distribution angle:
The stresses underneath concentrated forces can in general be assumed to dristribute through concrete under an angle equal to:
- 33,7º
- 45º
- depends
- other
Is there any standar related?
I am designing and the higher is the angle the...
Hi everyone,
I am working in a flat slab (50-60 cms), and I have a design with some families reinforcement not perpendicular to bending moment (see attached figure). All of them are situated at the same height approximately.
The ratios of the different families are for example:
-Family 1 (red)=...
I have to calculate a joint formed by a prestressed bolt which also is tensioned by external force.
I would like to know which partial coefficient for prestress I should use to calculate the bolt in ultimate limit state.
I have read a lot of normative and I have founded: 1.2, 1.1, and even 1...
Hello every body!
I am designing an steel anchorage and I have one doubt. I have a bolt postensioned, which has not contact with concrete. It is joinned with a steel plate which is embedded in concrete. When calculating the steel plate: Can I consider that the embedment improve the strength of...
