I have a scenario where I have specified a Construction Category 3 according to AS5131-2016.
The contractor is obviously not happy.
The structure overall is an importance level 4 (Hospital) structure but in our project (internal fit-out) wall stiffeners
are added, and or some steel arrangement...
Busy doing some small alterations to a building, saw these trusses.
A mechanical engineer's dream. It is a interesting use of Vierendeel Action!
https://files.engineering.com/getfile.aspx?folder=2b809268-0dd2-44a2-a20b-89c3347a407c&file=MicrosoftTeams-image_(3).png
Good Day
Something interesting came across my desk today, the geotechnical report of an existing building has a Ko factor (long term) of 1,2 for at-rest lateral soil pressure.
Is this not supposed to be a maximum of 1?
The site is underlain by clay, can the Ko factor be larger than 1 due to...
Does anyone have a reference for when it is permissible not
to have special detailing at a vertical crank in a slab?
My slope is 1:18 and detailing it like a big change in angle feels like a...
Hi All
I am aware this has come up in previous discussions, my
intuition is just fighting with all the literature i am finding.
I Have a portal frame with 35m clear span and 6,5m eaves height.
I have calculated the deflection as 134mm, this is including nominal
rotation stiffness at the base...
https://www.abc.net.au/news/2021-06-17/toplace-development-residents-blocked-castle-hill-skyview/100223462
Any idea what those plates would help for?
Sliding Joint with the plates bending helping with differential movement across expansion joint?
Hi All
When doing a elastic buckling analysis of a pony truss my second mode of buckling
is the expected sinusoidal shape as expected. I could then back calculate the effective length
and design the top chord appropriately.
However, my first mode of buckling causes my structure to rotate...
Hi All
Regarding the reinforcing detailing of a concrete moment connection.
Situation A is under gravity loads with the top of beam and the outside of the column in tension.
Now with lateral loading the situation reverses on one side of the building, does one lap the beam reinforcement as...
Hi All
We have this detail of retaining wall on piles floating around in our office.
It is a cantilever retaining wall that is built on a concrete base with beams on the edges.
The moment from the wall is transferred to the beams trough a coupling moment. These beams then
span to a pile cap...
Hi All
In the attached picture is a concrete column and beam connection. For the beam design
moments at the end will be ignored and the beam designed as a pinned support at the column.
For the lateral stability, can the negative moment that will be generated/developed by the top reinforcing...
Hi All
We were recently assigned to evaluate an old existing warehouse and to
establish if solar panels can be added to the rough.
Now the purlins are an odd size Z-shape where our design code does
not have tables for, so we dived into the abyss that is cold formed steel.
Our code is based on...
Hi All
Is "Design of Cold-Formed Steel Structures : To Australian/New Zealand Standard As/nzs 4600 2005" by GJ Hancock a good reference book to have for cold formed member design? Does it include examples?
Kind regards
Hi All
We are currently designing a Carnivore Enclosure at a Veterinary Hospital.
We have concrete walls on 3 sides and a steel ceiling and steel closure on the 4th side.
The ceiling has a hollow section frame with steel mesh in between.
The architect specd a 3mm welded mesh with 50x25mm...
Hi All
How does the structural fees of projects compare to fees of the quantity surveyor on the professional team?
Does the QS normally get more that the civil and structural engineer?
Lately in my area of the world if you do work for a private developer, they will have a fixed sum
for...
Hi All
I currently have a situation where we are building next to a railway with a retaining wall between us (our property on the higher level). They require us to compile a report of what our structural effect/loadings it will add to the retaining wall. I have calculated this according to the...
Hi All
Is anyone here using strap? Or more specifically
has a link to examples or tutorials?
I have been using it for quite a while but only
modeled slabs and basic structures.
Kind regards
Hi All
I have to design helical stairs, I have looked at previous
threads concerning the topic and my own google research
and all the fingers point to "Design Charts for helical stairs with fixed supports"
by A.R. Cusens & S. Santathadaporn.
I just cant seem to find it on the net.
Does...
Hi All
We had a discussion in our office and I would like
to know you preffered method.
When to beams connect over a column:
1. Secondary beam top reinforcing is placed lower througout beam
under primary beam top reinforcing and designed with the reduced depth.
2. Secondary beam top...
