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Hello, I have designed mechanical anchors for an equipement to be installed on top of an existing slab. The contractor asked me today if he is allowed cut top rebars that are in conflict with the equipment anchors. The equipment and the anchors can not be moved. And all of the rebars are in...

I have never designed flood walls but here is what I can say. when there is a wave, the water is not static anymore it's dynamic. You can not combine hydrostatic and hydrodynamic together (simply because water can not be still and moving at the same time). I have done analysis of retaining walls...

Thank you so much everyone. I will discuss all of your suggestions with my team before meeting with the client.

Hello Fellow engineers, I need your help with this one [smile] My client wants to install new equipment to the roof of a building (Equipement will be attached to existing steel beams) For this to happen, the existing beams needs to be reinforced beforehand. My only two options are : bolting...

There is a section in the commentary for open (exposed) structures. You can calculate the load on every beam and column.

Hi everyone, Is anyone familiar with the dowel effect? I am trying to estimate bearing capacity of concrete for this kind of situation. Do you have reference for equation I can use?

Hi fellow practitioners. I would like to ask you for your advice. I graduated with a masters degree in 2019 and Started working with my current company as a junior structural engineer with a salary of 54k. Fastforward 4 years later, I am still a junior (getting my engineering permit soon) and I...

Thank you for sharing

I think I would look at finding the floor spectrum for your superstructure. Basically, you apply the ground motion on your steel structure find the acceleration response of your steel structure (on top) and use that acceleration as ground motion for your superstructure. I would build a 2D model...

for deep beams I used to use strut and tie method. I once used a second method that I found in the canadian concrete Handbook (Park & Paulay method) where you can use the regular equations (Mr, Vr,...) but with reducing d (leval arm) parameter (distance between rebar in tension and compressed...

You should be able to determine minimum anchor length by verifying failure modes b and c if applicable.https://files.engineering.com/getfile.aspx?folder=e4de0063-792c-4f41-bc85-58506119ac68&file=Capture.PNG

Hello everyone, I am trying to estimate seicmic load on concrete deck that is going to be constructed on top of an existing dam. What would be the best way to do so? thank you

Are you sure that the rebar is subjected to shear only? Could some of the rebars experience tension caused by the combinasion of shear and eccentricity? if so, I would verify the rebar strength in shear, tension and also verify the concrete cone failure.

I find this article helpful to understand more about stress singularities. http://www.acin.net/2015/06/02/stress-singularities-stress-concentrations-and-mesh-convergence/

Yes, I would verify if the stirrups are enough to resist to torsion. And also verify if the area that is fixed resists to shear transfer.

I would look at it like as beam with a fix support and a moment load on the free tip. But I would also verify the shear transfer at the section you would consider fixed.

Have you considered the strut and tie method?

I would just cut at the corner, transfer load P as a moment (P x eccentricity) than calculate stress P*e*c/I

Hello I am doing a stability analysis for a dam using two methods, gravity method (CADAM3D) and finite element method (SAP2000). The first method shows that there is cracking at the base joint. But the finite element method shows that there is no cracking and there is no need fo reinforcement. I...

if the beam is long and thin, shear deflection can be ignored