I've been using classic AutoCAD for all of my drafting and detailing over my entire career. I'm really fast and efficient doing it the old way, but I'm curious if there is a better way or newer specialized software to try out. The detailing process is super laborious and tedious so I'm looking...
Also it might be wise to use a larger angle, L6X4X5/16. The 6" allows for bolts to be pushed up slightly more, and I think 4" is needed for proper bearing with a 5 1/2" brick cavity.
I try to avoid loading wood perpendicular to grain except in instances with light loadings. However, I've done this detail frequently without any issues so far, with 2 or 3 LVL ply's. I always note for the brick lintel to have 6" of bearing on brick each end to provide some rotational support...
Analyze the structure using direct analysis method (DAM). Apply notional loads to a the structure with reduced stiffness, perform p-delta analysis. Check lateral drift and column stability.
This is a serious crack if it is propagating through deep concrete walls. The cracks are symmetric and are located at the geometric center of the foundation. The foundation may be settling parallel with the observed cracks. The soils can be heaving if you are in an area with expansive clays...
What is the distance of the bolts to edge of concrete? It's common for concrete to spall due to inadequate concrete cover between the bolts and edge of concrete. Where cyclical horizontal and vertical stresses will weaken concrete adjacent to the bolts. How old is the structure? the steel...
I never said ALL welders are meth addicts, only a certain percentage which is a 100% true statement. Ya'll need to hang out more with the people who build the structures, I was one of them. They are great people with their own share of problems like everyone in this world. Drug use and...
3 ft seems pretty light and reasonable for expansive clays. If you design anything less then there is a chance the structure will move. Would you be willing to design a structure that will move around?
I don't mean to push stereotypes, I've met many welders who are my friends. They openly talk about their drug use which is extraordinarily common in the industry. The point I'm trying to make is to not design welded structures at the bare minimum of what is calculated. There are always other...
Do not put much trust and faith in welders, lot of them are meth addicts. I would definitely weld the full tube together, not just top and bottom. See image below from one of my projects:
The first function of the ribs is to increase the moment of inertia of the entire foundation which is governed by the PTI design values (em, ym) and loadings.
The PTI bearing capacity check is all of the dead and live loads of the structure plus weight of the foundation divided by the rib...
In central Texas, where horrible expansive soils are fairly prevalent, post tensioned slabs on grade are designed using the PTI method. These are stiffened (ribbed) slabs and the depth and spacing of the ribs is determined from the PTI equations to resist differential slab movement and to...
I have a degree in both architecture and engineering so I have a lot of experience with sketchup. If I'm detailing something tricky like a weird steel frame or custom stair I like to work it out in sketchup because it does look quite nice and does help with clarity. I usually export a view...
Could you argue that all of the shear will be transferred through the keyway, thus if the concrete wall is sufficient in shear it should be able to resist the strut forces? There is also a jump in the concrete thickness which will provide a very large surplus in shear resistance.
Here's a figure from a very famous anchor reinforcement paper. I believe this is applicable to our current situation and I would be inclined not to provide hairpins as long as these requirements are met:
