Hi Everyone,
I have a simple question on modelling of rotational mass in a structural model (with kg x m2 units) .
I have just come across a model with rotational mass inputted in to certian nodes.
I understand the need for nodal mass modelling (at a fundamental level) as this will effect...
Hi All,
I will be moving to the UK shortly to start working as a Bridge Engineer for a consultancy where I am expected to do load ratings and bridge/gantry rehabilitation works. My previous/current experience has been in New Zealand and Australia. Can I check what documents I need to be...
Hi all,
I have a simple mechanics of solids type question which I have been googling, but I have not been able to find an answer.
I have an irregular shaped section with bending moments imposed about its X axis as shown below.
The centroid of the shape coincide with the x=0 aand y = 0 of...
Hi All,
I am a structural engineer and I have a simple Geotech question.
Where there is a ground slope on the active side of the retaining wall, that increase thee Ka value when using coloumb theory.
But when the ground slope on the passive side is flat (horizontal), is it reasonable to also...
I have been trying to google this and I am getting some ideas, but if someone can explain this difference between coupled vs. uncoupled natural period in MDOF analysis for 3D models, that would be great. Just to add some context to this, I am trying to understand the seismic analysis of...
Hi All,
I have a simple frame with the following loads and the support conditions.
To solve the reactions manually, it is easy to get the vertical reactions by solving for moments equilibrium at the supports (to equal zero).
What I don;t get is how to solve for the horizontal reactions of...
Dear all,
I have a burning question about Dynamics which I have had in mind for over two years since my graduation which I would like to ask you all.
I know that I can model a 2 storey 2d (that only has 2 mode shapes) frame manually by hand using (in one direction) using the below procedure...
Hi All,
I am an intermediate level Structural/Bridge Engineer with one year experience in designing building structures (in New Zealand using NZ code) and 1.5 years experience in designing bridges using BS5400 (British Standard) code in Asia. I am planning to move to Canada and work as a...
Hi There,
I have been asked to find crack widths in a column. In order to do this , I must find the stresses in the tension steel.
In SLS when column is acting elastically, does anyone know how to calculate the neutral axis correctly when there is an axial force and bending both applied to the...
Good Evening,
I would like to ask a question about pile head moments in a simple bridge abutment model.
I have modeled two simple frame element models on SAP. The models are in longitudional direction and they look like this:
What both models have in common are:
1_ 4.5m design width
2_...
