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Ask An Expert

Is structure engineering troubling you?
Do you face problems in solving even the basic problems?

If yes then look no further as engineeringcivil.com along with Er. Gobind Khurana and Er. Abhimanyu has taken an initiative to help civil engineering students in structure related queries. We are thankful to Er. Gobind Khurana, Er. Abhimanyu and Vincent T. H. CHU for being a volunteer in helping other engineers in solving problems related to structure design in R.C.C and Steel.

Expert 1
Name – Er. Gobind Khurana
Qualification:
1. Bachelor of Civil Engineering From Thapar University Patiala
2. Master of Structure Engineering from Delhi University.
Work Profile: Currently working as Consultant for structural problems in R.C.C and STEEL Design.

Expert 2
Name – Er. Abhimanyu
Qualification:
Bachelor of Civil Engineering From Thapar University Patiala
Training at site in Unitech ( during 6 month summer training)
Work Profile : Presently working as associate design engineer for Fluor Daniel India Pvt Ltd. Area of work is structural steel design and concrete foundations for both static and dynamics analysis ( mainly in oil and gas industry)

Expert 3
Er. Vincent T. H. CHU obtained the degree of civil and structural engineering in the University of Hong Kong. He is the author of the monthly column “The Civil FAQ” in the Hong Kong Engineer published by the Hong Kong Institution of Engineers and is the author of the civil engineering monthly columns “The Civil Q&A” and “The Civil Corner” on the websites on World Federation of Engineering Organization and the University of Science and Technology (American Society of Civil Engineers – International Student Group) respectively. He is the recipient of the Ombudsman’s Award 2007 under complaint-related category and Young Engineer of the Year Award 2008 (Merit) organized by the Hong Kong Institution of Engineers. He is also the author of the engineering book “200 Question and Answers on Practical Civil Engineering Works”, “Civil Engineering Practical Notes A-Z” , “Ask Vincent Chu (Common FAQ on Practical Civil Engineering Works)” and “The Underlying Reasons in Practical Civil Engineering Works”.

So if you have any query regarding the concerned matter, just drop a comment and we will try to solve it as soon as possible.

3,910 comments on "Ask An Expert"

naresh says:

sir,
i am B.tech 3rd year
i interest to giving presention civil engg.field
i interest arch dams and stell bridge structures..give me some ideas……..

Ghanin says:

Hello sir .
Could u plz provide me with a concrete mix design with mold 15*15*15 that gives me a 460 mpa … Not that no admixture to be added
thank u

Bill Bergeron says:

I am mechanically fastening insulation into a plywood deck. How far does the fastener need to extend through the bottom side of the plywood?

Thank You!

Ravi says:

dear sir, pls explain me about steam concrete curing?

Victoria says:

I have a new home with a cast in-place concrete foundation, and my basement wall is cracked on an angle from almost
the top of the wall to the bottom. The builder have come in an placed injection molding to repair the crack.
Was the injection molding a sound proof way to repair the wall? or should they repairing the crack from the outside as
well?

Should I have a professional come out and check the wall to ensure the repair is completed as required?
If so, who could I call in Toronto, ON.
Thanks

jyoti says:

give me information about reclination. and also about dubai palm island in brief(regarding to construction aspect)

shaik says:

sir….can any one tell me how can i get one day strength of 9 mpa for a concrete design of m20….

gaurav says:

respected sir,
i am a second year engineering student and am interested in construction
management ..pls can u suggest what i should do after B.E

ace says:

hi

i am a 2nd year civil engineering student. one of my courses is Materials Science. i have been posed with this question regarding materials selection in construction. it will be much appreciate if you could furnish me with some advice of things that i should take into account when compiling my report. the question is:

Consider the design of a simple family house which will accommodate 4-6 people. The house is free-standing on a plot of land near the sea. Without worrying about the detailed internal design of bathrooms/kitchen/bedrooms/living areas, provide a comprehensive analysis of materials that are suitable for:
(i) Roof construction.
(ii) Window frames.
(iii) Structural support.
(iv) Walls (walls can also provide structural support if appropriate materials/design is considered).
(v) Thermal insulation for roof (and walls if the design allows).
(vi) Plumbing.
In executing your analysis, give serious consideration to comparing the (a) traditional approach where the design goal is simple: strength and stiffness at minimum cost, and (b) modern approach where advantage can be taken of alternative materials that may provide solutions to rapid construction, low maintenance and fashionable appearance.

this is quite urgent and i pray that you may find the time to assist me
my sincere thanks

P Fung says:

Hi sir,

Please help me out on this planned cabin project, I am quite naive on engineering disciplines and need your help and comments.

Question 1:
I want to cut a 20 feet shipping container in half and make 2 cabins. Each of the portion will be done like this: the opening side will be installed with glasses. The other 3 sides will be cut open for more windows or possibly a door. Chimney opening on top too or may even be a loft under another roof structure. Is it necessary to put on extra beams (maybe T-beams) to support the structure? What are the considerations involved?

Question 2:
Is it ok to put the above structure on leveled crushed stones, like 4 inches of 1/2″ or less crushed stones above ground?

Question 3:
Or alternatively for foundation, put some deck blocks (9000 psi), instead of putting 4″ X 4″ wooden beams, put in short (maybe half foot), 900mm x 900mm steel beams directly to the deck blocks opening, then weld the exposed upper portion of the steel beams to the container external. Will that support the cut container? How many deck blocks and steel beams (strength and things like that) are required to support one of the cut container (8′ X 10′)? A full 20 feet container is likely 67,200 pounds with no cargo. In the cabin, I will be likely to put in cabin stuff like chairs, beds and etc.

zainul says:

Dear All, Can any one send NBC norms to me

subhasis bhattacharya says:

Hello Sir, I am actually an Electrical Engg tangled in some civil works. Can you please tell me the volume of a 50 kg Ultratech PPC grade cement bag, and how to relate wt & volume of sand and coarse aggregates????

ade says:

Pls i am a final year student and am writting a report on my project. the title of the project is causes of failure in strucural buildings

Rahul Patel says:

If we got permissible SBC on the ground floor, why we have to excavation further for the foundation? Can we cast foundation on directly on the ground level without any further excavation? Give me technical reasons?

Mohammed Azhar says:

Hello sir,
could u plz suggest me a book where i can find the complete details of sewerage system and storm water drainage system.
thank u

ketan says:

Dear sir,
please tell me in this cc ratio (1:2.5:5) how many kg cement required in 1 cum.? and how can calculate it

thanks

raghav says:

dear sir,

please tell me about the water scraper,about there construction,etc.
iwant complete knowledge about it,i know you can help me about this topic as this is my research topic

thanks

abhimanyu parida says:

@ ravi

Steam curing is done either at ordinary pressure or at high pressure. Steam curing is often adopted for prefabricated concrete elements. For more details
Refer concrete technology by MS shetty Pg 282

abhimanyu says:

@ victoria
I am not expert in basement wall but if u provide the following information, it will help to find the reason for crack, since the repair for any failure is mainly depends on the type of cause
1.Your home is concrete beam column structure or wooden structure.
2.Any pipe-line carry water or any river nearby or any liquid draining structure.
3.Any new construction near-by or excavation work going on.
Injection molding is not a full-proof solution because let say if failure is due to extra pressure of water which is not draining properly then it will going to build up and create problems on later stage or let say if any one excavating near even then there is differential settlement of footing causing crack in wall, so molding can only fill the gap not the root cause and sorry i dont know anyone in Toronto, ON.

abhimanyu says:

@ ade

Whats your question??
If u r asking abt causes of failure of structural building then i think enough material is available on internet and google books.

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