Does anyone have an estimate on the amount of time and money that would be required to obtain permitting through the Corps on placing 360 feet of stream in two 6' high x 9' wide box culvert? I attached a photo for the project that will be in Georgia.
I have attached two pages from the Load and Resistance Factor Design Manual, Second Edition from around 98. I have a question on when Cb>1. They show two formulas for Lm. They have a condition for Lm to decide which formula to use, but I don't know how to apply to the condition unless I have...
In Infraworks, when I select import Civil 3D data I receive the error: Failed to import date. See the details for further information. 0-113 Junius_Base File.dwg:
* Unable to launch Autodesk Civil 3D to perform the import. Validate installation and activation of required version of Autodesk...
I am trying to understand this distribution direction pulldown within Area Member loading (see attachment). I am trying to represent a live load, so I am wondering if I should select perpendicular to A-B, Two Way or something else? Also, what should I select for a wind loading? I looked...
I have attached two files with the same structure. For simplicity in analysis, it's a flat roof with 2x6's.
One is plate loaded with a dead load = 10 psf and a live load = 20 psf. However, for the plate loaded structure, member 3A, the moment z = 0.275.
The other is a distributed load that...
I would like to recieve a recommendation on a fairly economical gas modeling software package. I have been asked to model the gas system for a city with 10-15,000 customers with the bulk of that being commercial load.
About 12 years ago, I bought a program that allowed me to draw pipes and tanks for a water system in Autocad. I was then able to export the model into EPANET and execute it. I have misplaced the program, but now I need it again. The problem is that I am unable to locate it through a search...
I have a water system model that was written in KY pipes, however I have Bentley WaterCad. I have been told that WaterCad accepts EPAnet files, so I need some direction on how to convert a KY pipes file to an EPAnet file.
I have developed a model utilizing the recommendations from the previous post. They include using a quad mesh to get the plate load close to one foot increments, designating the truss nodes as reactions, and showing the plates as fixed.
Some of the attached design (flat roof.pdf) may not...
I have a model that I am working on for a flat roof building. I know it may not sound good, but I used the flat roof to ease my calculation checks. I have added the sub mesh on the metal plate as recommended in an earlier post. However, now I am getting a lot of locked joints. Can anyone...
I have mainly been in Land Development, but due to the economy I am trying to diversify and learn RISA 3D. I was trying to verify a result from RISA 3D. I just applied a load of 0.06 kips/ft to a beam 20 feet long with pinned connections. Per my 98 second edition LRFD Steel Design Manual, I...
I am fairly young engineer, but I still insist on checking a lot of the program's results with hand calcs. This is always beneficial, because I checked the RISA results for a plate loading on a metal building. I noticed that the plate load was not being distributed correctly. From the old...
I have installed RISA 3d V8.1 onto a Windows XP computer, but it will not execute. It tries to load but it shows an Xenocode Virtual Appliance Error. I have installed it onto another Windows XP machine and it works fine.
