BridgeSmith, thank you for reply.
Hope I understand it right, correct me if I wrong.
You mean that, fatigue check ( I don't have such check in my country code) in most cases define design of studs. So we can use V*S/I to find shear force in some points (as you say 10 points along beam) and...
MIKE 311, thank you for reply.
To be honest, I don't live in America, so I don't use AASHTO to design. If you find something strange in my words, in some cases it's because we have different basis. But I think, than in common all codes for composit briges have a lot of same stuff.
about this...
Hello. Our last project - 4-span continuous overpass with composite section (two box-shaped main girders and monolitic RC slab). My job was check ULS and SLS for main girders and design shear studs map. Somehow I've managed to do this, but now I have several questions about this stuff.
I'll...
You're right, fattdad. Maybe this is not so important, but actually, I'm just curious. I've never take part in real geological survey in field. Maybe it sounds dilettante, but I'm really just wonder, what will be if I dig a deep hole in earth and insert piezometer in clay with very low...
Thank you, Sjotloll, fattdad, dik, for all your answers. I think I've got it.
But can you answer one more question? If we have a very thick layer of impermeable clay, with no free water (all water bound with clay particles), but with high saturation ratio. What value of pore pressure will we...
Here we have a section of dumb questions.
I'm sorry, fattdad, can you explain this part of your previous post?
Let's consider situation you've described.
If we install piezometer in the clay and other in the sand and they have the same head, then it means that water in the clay have...
Thank you, guys, for all your help. I really appreciate it. For reasons beyond our control, we had to leave this project.
Wish you good holidays. [frosty]
oldestguy, thank you for advice. I'll consider it.
EireChch , i've forgot to mention about seismic activity with design intensity 9.0 (MSK-64), so my main problem is seismic case. Span - 35m, two steel flanged beam with steel deck, with 4 piles 600mm diameter we have 41.4 ton on pile's end...
Hello.
I've tried to find an answer during hard internet search (without result). I hope you'll help me.
Input:
1.Pedestrian bridge
2. Soil conditions ( 1m of sand, 4-5m of expansive clay with high expansive strain, weathered rock - argillite),
3. Therefore - pile abutment (flood is common...
Hello.
I've got an answer from IABSE. Now I have article #2 (2. MARTI, P. (1991) – Dimensioning and Detailing, Structural Engineering, IABSE, 62, Stuttgart, Germany, p. 411-443.). After a week I've managed to find correct way to explain this. Here is a small pic with an answer.
The main idea...
Thank you, avscorreia!
Your link http://citeseerx.ist.psu.edu/viewdoc/download?doi=... is very helpful. I've found some interesting information, but still I don't have an answer.
Now I'm trying to find original articles, writen by prof. Peter Marti:
1. MARTI, P. (1990) – Design of...
Hello. I have a question about design of concrete shells with three-layer method described in p.7.3.2.2 fib Model Code for concrete structures.
The main idea of method is that we divide shell on three layers. The outer layers provide resistance to the in-plane effects of both the bending and the...
