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Foundation Design


Waqar Saleem
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thanx Rana n Umar!!!can anyone upload sample geotechnical investigation report ???

Its very big and honestly, junk hota hai. You will sleep if you try to read it.

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actually its not always boring and long...what you have to see is


bearing capacity of soil (for foundation areas)
coefficient of lateral earth pressure (for basement or retaining walls)
soil spring stiffness or modulus of subgrade reaction (for modelling foundations) soil spring stiffness or for piles
depth of foundations

etc

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@Rana i liked your comment but system replies that you have reached the limit!!!thanx for your kind reply it wud be more complete if you can upload a sample geotechnical report and highlight where to find these said parameters!!!

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as a working engineer its really not easy to upload an official document complete or part...from office systems but i think you can google the phrase and i hope you will find it..

plus these parameters are difficult to find in a geotechnical report..they have sections and index explaining each and every thing..just start with a simple geo tech report....more often the report consists of not more than 50 pages...unless its quite complex project!

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  • 4 weeks later...
  • 3 years later...
Kindly help me in solving these two problems..these are from previous commission of works and services department.


1. Design a lintel over 2m window which is positioned in the central lenth of a long wall 20 cm thick. Height of masonary over lintel is 4 m. Adopt c= 50 kg/m2 , t=1400 kg/m2 m=18 . Density of masonary is 1920 kg/m3. Check for shear stress and bond stress

2. Design a square RCC footing subjected to a load of 80 t, column is 50 cm x 50 cm in plan. Bearing capacity of soil is 10 t/m2. Adopt c = 50 kg/m2, t= 1400 kg/cm2, m=18. Check if it is safe in shear and bond stress.
    
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For lintel design, a triangular load distribution, with 60 degrees internal angle from lintel edges, may be assumed provided top corner of the triangle is also located within masonry. Otherwise lintlel will share the slabs loads as well. If I remember correctly, there is a lintel design example too, in reinforced concrete design book by Morgan. 

 

Governing principles & general methodology, along with design exmples should be available in your RC design text book.

 

BTW... Which RC design code and text book are you following?  

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Governing principles & general methodology, along with design exmples should be available in your RC design text book.

 

 

Naeem,

 

The above comments pertain to your column footing design problem..

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Engr Uzair.. this is not from any book its from previous paper of works and services group. I have no interest in designing. thats why i m having problems in designing problems. moreover i am not referring any book regarding design.. thats y i thought to post here so that i may get answer here widout opening any book..

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I have no interest in designing. thats why i m having problems in designing problems. moreover i am not referring any book regarding design..

 

I am surprised to know that.

 

Are you not an civil engineering (or architecture) student? And, are you not studying in an engineering university?

 

If yes, then you will certainly have to learn basic design principles, otherwise you might not be able to passing grades in your design subjects. Moreover, there must be a text book and possibly some reference books, recommended by your design teacher for learning of design concepts.

 

If your answer to both of my above questions, is 'No', then IMO you do not need to solve the design problems you have referred to.

 

Can you explain, what the real situation is? and, why you need the solution of above design problems? 

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you know in some parts of life a man has to take interest in such things in which he is not interested.. though i m interested in site works but now i wana change my interest coz of increasing scope of design.. n i have been referred Reinforced Concrete design by Nadim Hassoun by teacher n a member in this forum..

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