Search results for query: *

Hi, Dear All, Recently I am working on a composite steel girder project. I am using MIDAS Civil. I had a question regarding the design module and I asked the tech support. They answered as follows. ------------------------------ The Steel Composite Girder design module can only be used if you...

Hi, Dear All, I have a quick question on culvert design EH load. Geotech engineer gives EH values (equivalent fluid pressure) for active (40 pcf)/at-rest (60 pcf)/passive (480 pcf) earth pressure. When model the culvert in Eriksson, for EH loads, I only entered in the active and at-rest values...

Hi, Dear All, First of all, happy new year! I have a general question on plan notes. My background is bridge design/load rating/rehab. After 8 years of work, I feel much better now on structural modeling and analysis. However, I still do not feel very comfortable/confident when I have to come...

Hi, Dear All, For concrete beam shear design, the critical section can be taken at the section which is d away from the support/column face. I am able to find this in the ACI code. For the flexure design, more specifically for the negative moment, can we design at the face of the support or...

Hi, Dear @Agent666, Thank you so much for the help. :P Stewie

Hi, Dear All, Is there an RC flexural member section proportion limit in the aashto lrfd code? Liks depth/width ratio limit? If not, is there something like this in the ACI or IBC codes? Please help, Yo~ Best Regards, Stewie

Hi, Dear Bridgebuster, Thank you so much for the help. You are the man! Thanks, Stewie

Hi, Dear Bridgebuster, Cool, thank you so much. I thought the same, the bond stress. Thanks, Stewie

Hi, Dear All, I got a quick question on AASHTO ASD culvert design. The plan has some standard note telling "AASHTO 1957 --- f.s = 20000 psi, f.c = 1200 psi, n =10, V = 90 psi, U = 300 psi". I know f.s, f.c and n. My question is on V and U. 1. Is V concrete allowable shear stress? 2. What is U...

Hi, Dear All, I am planning to take SE exams (bridge) in April 2019. Do you guys have any recommendation regarding online review course? I saw the pass rate for bridge lateral load exam is very low... 17%?! Do you guys have any experience with ppi2pass or school of PE? Please advise if you...

Hi, Dear HotRod10, Thank you so much for the help. My question is about how to calculate H_EQ according to AASHTO LRFD 2014 3.10.9.2. I found some examples from online, but the procedures are different from each other. 1. BDM Example 9 from CODOT: Unfactored reactions are used. H_EQ =...

Hi, Dear All, AASHTO LRFD 2014 sec 3.10.9.2 tells that "For all other sites in Zone 1, the horizontal design connection force in the restrained directions shall not be less than 0.25 times the vertical reaction due to the tributaiy permanent load and the tributaiy live loads assumed to exist...

Hi, Dear All, Please someone help me with understanding section 5.13.2.3 in AASHTO LRFD 2014, "Detailing Requirements for Deep Beams". Please see attached file. Thank you so much for the help. Thanks...

Do you think FRP can help in this situation?

Thank you, guys. I learnt sth.

For a project I got a chance to read the bridge design codes, both ASD/LFD (AASHTO Standard Specifications for Highway Bridges) and LRFD (AASHTO LRFD Bridge Design Specifications) codes. While my reading I got some problems as follows, 1. The codes mention the loads and load-combinations but do...