I’m looking for a reference or book that would contain information about construction details and typical construction information for old (late 1800s/early 1900s) mill buildings. Looking for the typical heavy timber and brick bearing wall structures. Trying to learn more about how they did...
I was recently checking a 8" reinforced masonry wall for out of plane loading. It is partially grouted with 1-#5 in every other cell. For this wall, the applied moment exceeds the allowable moment based on unreinforced masonry allowable stresses. So, I designed it as a reinforced masonry...
I've read this document (www.ssina.com/download_a_file/fasteners.pdf) it indicates that a 1974 stainless steel design manual by AISI used a FoS=3 to calculate SS bolt allowable strength. Now, I also read AISC DG 27 (Structural Stainless steel design), which uses a FoS=2 to calculate SS bolt...
I am reinforcing a wood beam with steel side plates. Are there any design provisions or design examples for this type of strengthening. I'm particularly interested in the requirements for the spacing of the intermediate connectors. From google, I've seen the typical spacing seems to be 16...
I have a light steel frame, which has beams with slightly eccentric vertical loads. I end up about a 170 ft-lb torque at the end of the beams that needs to get passed through the shear plate connection at the end of the beam. This torsion seems absurdly small to me, but it is killing my shear...
For braced frames that use single angles for the bracing, do you need to consider the eccentricity between the angle and gusset in the design of the gusset plate? If so, are there references that cover how to do this?
I know that for the single angle design, I need to use E5 to check the...
Can someone explain or point me to a reference that exaplains why fillet welds provide better fatigure and fracture resistance than PJP welds?
I understand why PJP welds are frowned upon- becuase the root of the weld can essentially be considered as a crack initiation point. BUT- I see a very...
I've read S&J's section on Torsion and AISC's DG 9 on torsion.
If I understand torsion of I beams correctly, the warping phenomenon is essentially result of the top and bottom flange rotating about the web's axis. So, the top and bottom flanges have normal and shear stress distributions...
I have heard a number of rules of thumb for estimating the depth to the bottom of a general shear failure surface. Anwhere for 2B to 4B for cohesionless soils, and around B for cohesive soils.
I can't seem to find any document that talks about this. Could somone point me in the right...
this is a pretty basic question as i am trying to understand the fundamental differences between slope stability and ultimate bearing capacity. I do understand the whole 2pi vs 1pi thing for bearing capacity vs slope stability.
if i have a shallow foundation at the top of a slope (assume...
Say I have 10 in. long joint that I need to weld and I call for a 2 in. long fillet welds at every 5 in.
How would the welder make this weld?
Would they lay down a 2 in. bead at each end of the joint? If this is the case how much weld metal (in terms of length) would be placed in the joint...
Does anyone know of a good reference (free or paid) where I can get interaction diagrams for concrete members? I need this for the PE Exam. I am finding that the the Structural Engineering Ref. Manual and my text books only cover a very limited number of cases. I am hoping to find a thorough...
I'm looking to get a masonry text book as I study for the PE exam. After searching this site it seems that one of these books are the way to go:
Design of Reinforced Masonry Structures by Narendra Taly
Reinforced Masonry Engineering Handbook: Clay and Concrete Masonry, Fifth Edition by James...
In composite construction, when you have a concrete slab on a steel beam, say that the PNA is at the bottom of slab/top of steel:
To calc Mn- one assumes that the extreme fiber of the concrete has reached a strain of -0.003 (Negative for compression) and the concrete has developed the whitney...
I'm reviewing a stainless steel schedule 80s, 14 in. diameter pipe, but ANSI/ASME 36.19M specs stainless steel pipe dimensions only thru 12-inch.
I have found dimensions for 80s pipe greater than 12 in, but I can't seem to find the controlling standard. Is there an ANSI standard for schedule...
I am designing a grade beam will be cast around an existing sub-slab utiltiy.
Anyone have experience doing this? Any recommendations? I'm fine with detailing the reinforcement around the existing utility. I'm more interested in things like:
-Do you oversize the hole?
-Install something...
Does anyone know of any references which discuss relationship between repair costs and building settlement?
I'm looking for costs to fix broken windows, misaligned doors, partition walls, etc... (mainly cosemtic, non-structural repairs)
I live in Massachusetts where (at least on the structural side of things) we need to bury foundations deep enough so that they are below the freeze line of the soil.
I assumed (perhaps naively) that there would be something similar for domestic water supplies. For example, say a water branch...
I am evaluating a structure that has an existing simply supported steel wide flange girder. There are timber joists that sit on the girder, but are not rigidly connected to it. The girder sits on a bearing plate, and has no stiffeners, nor any lateral support at the ends.
Essentially the beam...
