From the 2015 edition: "The first edition of the Bridge Design Practice Manual (BDP) was published in 1960, and the second and third editions were published in 1963 and 1971, respectively. The
BDP has been published as a live document continuously since the 1990s."
The 1960, 1971 and 2015...
Hi alpha17bravo,
I agree that you are not likely to receive the requested calculations. The letter is from 1992 and the shoring industry has come a long ways since then with all kinds of substitutes.
I would wager the calculation just shows an "equivalent or better" bending capacity using the...
Thanks for the insight TerryScan. Sizing sewer pipes is an interesting thought process for engineers starting out, since increasing the pipe diameter can result in decreased velocities in certain instances.
Maybe architectural/aesthetics???
A proper looking road improves safety: diagonals, skews, angles and gaps make the roadway look confusing.
The infill will provide some continuity of the superstructure, which will improve seismic response, but my bet is that it was primarily done for the...
The shape of surcharge distributions vary depending on the model, wall height, type of wall, and type of load. Study up and contact the geotech. Get a copy of the Bowles textbook.
The MO equation mentioned by geotechguy1 (if I remember correctly) is the same as Coulomb theory, just adds an...
Design the wall, then the piles. Don't design them together.
Once you have the preliminary pile reaction forces, study a book on pile design (horizontally loaded piles), then consult with the geotechnical engineer. You should probably know the difference between long, short, and...
I agree with PEinc: I also don't recall a "special formulation needed for the grout."
Check with the design engineer: the strength of the grout and the bond between the grout and the metal nail are likely not controlling.
It is so reassuring to have test/proof nails--one of the rare instances...
I agree with ACtrafficengr: embankment side slope of 2H:1V or flatter.
No idea why the need for a 3 ft high embankment when everything is "super flat"...?--The whole original post doesn't make sense.
Check out the Caltrans LS/LSIT Prep Videos, they are on Youtube. For practice take the NCEES fundamentals of surveying exam and the PLS one. Learning more than the minimum to pass an exam is a noble pursuit.
The California civil land surveyor exam years ago mainly just tested horizontal...
The conversion type was nearly always obvious, and 99% of the time the conversion difference was negligible.
Since metric passed I only use the terms "exact" and "approximate", no need to swap the customary tried and true for the contrived. The unnecessary confusion is indicative of the...
fel3 (Civil/Environmental)...
Yes, my work (back in the metric days) used the same terminology as the California DOT: their construction projects, their manuals, and their standards.
In California "soft" meant an exact conversion, "hard" meant maintaining a hard number. The only time I remember using these terms is for the few years that the California DOT switched to metric--and don't think I have seen them or used them in practice since.
Two inches is 50.8 mm using the international foot. There is a very slight difference using the US Survey foot (39.37 inches per meter).
When metric was "used" in the US, the contract plans were metric, but the projects were actually being built using USCU. The practice was to "hard" convert...
"Caltrans LS/LSIT Prep Videos" are on the internet.
You could also consider taking the NCEES "Fundamentals of Surveying Practice Exam" and the "PPI California Civil Surveying Practice Exams".
Bridgebuster: thank you so much for sharing a pdf of the "Bridge Design Practice Correspondence Course".
My previous employer's edition stated that for the live load the sidesway correction is not applied, and it stated that this was not necessary because of the nature of the dynamic loading...
There was a "closed" thread where a fellow asked about Puecher charts. My take is that these are fairly difficult to use and that so far as a time investment it is better to use that time figuring a FEM software package. My recollection is that they work just like influence lines for a...
There was a post that is closed that was asking about the origin of the AASHTO load. There was not really a decent response to the question...so it is still a mystery to me.
I've never understood how the lane load was arrived at. I remember reading the HS20 lane load was supposed to...
Love WSD and still use it.
There are plenty of detailed and extensive books to download for free on Google books. Interesting stuff "bending and direct stress"; cohesion to calculate development length (very interesting to calculate the allowable concrete stresses on hooked bars); it's...
Sorry for posting in the wrong forum. I don't visit eng-tips very often. I posted because I thought it might save me hours and hours of internet searching and shopping.
Does anyone have any thoughts on how much and what sizes of electric components to buy resistors, wire, capacitors...
