Does anyone know where I can find or can share a copy of: The Standard Specs 1st Edition, 1931 and The Standards Specs, 8th Edition 1961?
Maybe @bridgebuster might have a copy?
Thanks
I am trying to layout a series of parallel bridges over a creek that is more crooked than a politician. The creek meanders from northwest to southeast with multiple 180 degree U shaped bends, while the road is running east to west.
Given the span lengths, 175' to 300' depending on the bridge...
The 10th edition of the AASHTO specs is bringing some changes for cross frames and it doesn't look like MDX is going to get their act together anytime soon. It might be okay for a straight non-skewed bridge, but that's about it.
Does anyone have recommendations for a good steel bridge design...
Ownership at the firm I work at is a bit different than most places that I am aware of, shares are simply given to you, as opposed to buying in. After talking to a few people, my understanding is that it's more of a way to add additional compensation to certain people without giving them a...
I am doing some analysis of a bridge that was designed in 1961 and am trying to understand the braking loads that were used for design at that time. I have the 17th edition of the standard specs and it states to use 5% of the live load for the longitudinal force. I dug up the 5th edition from...
I am trying to interpret another poorly worded sentence in the 9th Edition of the AASHTO LRFD Bridge Design Specs.
In Section 3.4.2.1 it says The load factor for wind during construction in Strength Load Combination III shall be as specified by the Owner. Any applicable construction loads shall...
Does anyone know when AASHTO is going to release the 10th edition? They are on a 3 year cycle since 2017, so the 10th edition should be published sometime in 2023.
What have they done to this software? I can't get the new "BETA" version they told me to install to execute an analysis. The program simply closes every time I click on analyze.
I went back and forth with their staff multiple times and installed a new supposedly updated version at least 3...
I am building a new covered patio (roof supported by 6x6 posts) and am concerned about the slope of the concrete slab, or rather the lack of it. I put a 4 foot level on many places on the slab and it's essentially dead on level. I am under the 2015 IRC and section R401.3 states "Impervious...
Has anyone compared the results of using the simplified method, the general procedure equations and the method in Appendix B5?
I recently did this with a pier cap and noticed that the simplified method and general procedure equations produced similar results. The results of the method in...
I am performing an AASHTO LRFR legal load rating (Type 3, Type 3S2, 3-3, etc.) for a single span bridge less than 200 feet in length. Should I include the lane load (0.64 klf) with the legal truck? In my opinion the wording in the MBE isn't clear if the lane load should be included or not.
It appears Consys doesn't work anymore with the demise of LEAP Bridge. Can anyone recommend a good, simple program that does continuous beam analysis for live load and static loads?
I have QConBridge from WSDOT, but you can't create custom live loads in it.
Thanks
I am trying to find more information about anchored end span bridges. If anyone could point me to any articles about these types of bridges I would appreciate it. Thanks
I am used to reviewing Texas Cone Penetrometer (TCP) values to estimate pile tip elevations. However, I find myself working in a different state and the report I was given used the Standard Penetration Test method and the logs list the blow count every 5 feet (blows/foot). I am using steel...
New York, NEW YORK!!
https://www.timesunion.com/news/article/mario-cuomo-bridge-structural-problems-covered-up-15594755.php
I bet Mario the Pious wouldn't let this stand. [rednose]
I am reviewing some shop drawings of a plate girder with a field splice with different web thicknesses. One web is 3/4" and the other web is 13/16". I think this is rather odd, but I'm not the EOR.
There is no filler plate called out in the construction drawings or shop drawings. There will...
I was recently reviewing an engineering scope and fee proposal between a municipality and a design engineer for a city street and was a little bit surprised when I got to the fee portion of the proposal. Has anyone ever seen anything like this before? Isn't there a conflict of interest if you...
PDF download is available now. Hard copies begin shipping in June. I believe AASHTO has went to a 3 year cycle with no interims.
https://store.transportation.org/item/collectiondetail/202
I was talking with a coworker in another office this morning. He is designing a new bridge with NU girders and was reviewing the state DOT's design requirements.
One of them was placing felt paper on the outside 9" of each side of the top flange.
This bridge is off system and tge DOT has no...
