Practically weight of 1 cum M:15 concrete mix is more than M:20 concrete mix. Do you agree? I'm asking this because i have seen this in my batching plant after loaded on transit mixture. Let me know what you think. Thank you. By, Kunal Kumar Gupta
- Asit asked 2 years ago
- last active 1 week ago
I'm currently working on a new construction site and facing problem measuring the level of the construction. My question to all pro civil engineers that what technique could be used to measure the level in a building construction?
The main steel is reinforced in the shorter direction for slabs in building construction. Why it is not done in the longer direction?
Where 'Grillage Foundation' is used? What are the advantages of using Grillage foundation?
- Guest asked 3 years ago
- last active 1 year ago
I'm a student so am still learning, anyway I think I know what a continuous beam is: a beam that spans more than two supports. I have a project to design a building however going through lecture notes for preliminary design I have come across this:
'Based on the practice of experienced designers a number of “rules of thumb” have been suggested to propose the initial size of members. For instance some designers use the following “rules of thumb” for the preliminary sizing of RC beams:
for simply supported beams: h>=L/16
for beams with one end continuous: h>=L/18.5
for beams with both ends continuous: h>=L/21
for cantilever beams: h>=L/8
where h= height of the beam, L= length of span'
Now I can't seem to find anything anywhere else that differs between continuous beams, and nor can I think what it might mean. I feel stupid asking this but no one seems to know and my lecturer has been ignoring me :/ I possibly thought he may not mean a continuous beam as such but be referring to an overhang but given that the building I am designing is a general grid layout I don't think anything is overhanging so am just a bit puzzled. Any help would be greatly appreciated :)
- hmvv asked 2 years ago
- last active 2 years ago
I'm stuck with the question. Where does the point of con-traflexture occurs in a loaded beam? Is it the place where bending moment is minimum or whether bending moment is maximum?
- revnicky asked 3 years ago
- last active 1 year ago
I heard the word 'hacking' from a civil engineer friend but couldn't remember the exact meaning of the term. What does it mean?
- shahe asked 3 years ago
- last active 11 months ago
My inyinirs, i show you my project for a government complex. I only need to fill the area which is inside, and my guests say that the central building of that place must be triangular. The problem for me is that it's not easy to locate in a central place because the triangulation, which triangulation system do you recommend me?. I have been talking with Calatrava's office but they say that the best solution is a curve structure.....but my guests want it triangular. What can i do, my friends?. The time is running for me. I show you the planning in here. Here is the photo... https://www.facebook.com/photo.php?fbid=10202058420836813&set=gm.10152263787995645&type=1&theater
by, Jesús Rodríguez Guerra
I have been working on a project where i am facing an problem wit is as follows :
Reservoir water has become acidic of ph 3+ due to existence of coal mines on the upstream side of the dam. The concrete of the dam has eroded & further deterioration is continued which make the dam stability in danger . To save the front face of the dam , necessary barrier is required to avoid further deterioration.
What type of protective measures should be taken to solve this problem under water condition ?
The Thickness of steel plates of the panstock has reduced by 3 to 6 mm and there is a possibility of bursting of the pipes under the hydro static water pressure. The panstock pipes are lying under ground at about 30 to 40 degree of the power house and it is not possible to replace the whole length with further steel lining .We are of the view that some kind of polymer coating be done inside the panstock under wet condition so as to achieve the required strength of the pipe to the designed value. It may be suggested what kind of polymer coating maybe done & whether the thickness provided may achieve the required design strength of the pipe by bonding with the steel as one unit.
- ohriskr asked 3 years ago