We removed the bituminous membrane sheet and the topping above the membrane because of some leaks. You can still see the old membrane on the upper sides at the edges not yet teared or pulled up. (and the lower left side whose topping were not chipped).
but you can see, the membrane has no...
In most of our structural plans. You only see this guide for wall. That stiffener vertical and horizonal beams are put every 3 meters (9.8 feet) (in addition to the vertical rebars every 0.6 meter (1.9 feet).
Our city hall building officials waive any computations with regards to walls. All our...
Dear Experts,
I saw the above building under construction while driving in the street yesterday (I parked at the side and took pictures). This is very common in my neighborhood. May I know why I couldn't find pictures of any steel frame building with masonry exterior wall anywhere in the...
I need thick plate gutter. What are the pros and cons of using thick steel gutter that you weld on i shaped steel beam (Ibeam) and purlins (for inside gutter)?
can putting such stiffener plates inside the web and flange (illustrated above) produce restrain against torsion? What is the formula for the spacing of the plates?
See attached photo. There are cracks in the slabs. Does the Y shape cracks tell whether it's shear or flexural cracks? the right and left side is the longer side compared to the top and bottom (half as wide).
What compound can totally seal the crack? All I know is injecting with epoxy. What...
In your experiences, how strong are corbel baseplates at the sides supporting an I-beam above it? Post installed anchors will be used (meaning there is already existing column/concrete).
See attached picture. The top baseplate where the I-beam frames into it has very insufficient anchoring...
For slabs with ratio greater than 2. It is considered one way slab with the reinforcements in the short directions.
But for sake of illustration. Supposed you put reinforcements in the long directions only, and no reinforcement in the short directions. Will it work if the reinforcements are...
If it is a non-bearing 3 meter high concrete wall with 0.47" (20mm) rebar spaced horizontally and vertically every 8 inches (200mm) apart connected to the beam and column. Is there any guidelines about minimum thickness of the concrete wall?
Remember you can put wood or cardboard in the gap...
How do you put fire protection on a concrete floor?
The bare slab can be used with just vinyl or tiles with crack mitigation membraned and thin adhesive. But this doesn't protect it from fire.
And what kind of fire can reach the floor? Is it not flame reached up and not down?
Please share...
There is a column with baseplate on top. We need to chip off half of it to put a concrete beam. We don't want to use steel I-beam. But you can't use ordinary concrete in the joint because it can't go under the baseplate with many rebars in the column. If we would place a non-shrink grout like...
