Design of Raft Foundation Spreadsheet Free Download
Design of Raft Foundation Spreadsheet Free Download
Design of Raft Foundation Spreadsheet Free Download

Design of Raft Foundation Spreadsheet Free Download

Raft foundation is a thick concrete slab reinforced with steel which covers the entire contact area of the structure like a thick floor. Sometimes area covered by raft may be greater than the contact area depending on the bearing capacity of the soil underneath. The reinforcing bars runs normal to each other in both the top and bottom layers of steel reinforcement.

Raft foundation is a type of shallow foundation that is provided in areas where the soils have a low bearing capacity, or where high superstructure load is anticipated such that individual pad foundations will overlap. A typical raft foundation is more expensive to construct than an equivalent pad foundation for a given area in a building. 

The cost of constructing a raft foundation is influenced by:

  • The cost of setting out 
  • Environmental considerations 
  • The member sizes (depth and width of beams and slabs) 
  • The quantity of reinforcements required 
  • Formwork requirements and the complexity of the construction 
  • The volume of excavation required 
  • Backfilling the substructure 
  • Other substructure requirements such as compacting, hardcore (if required), damp proof membrane, etc 
  • Availability and cost of labour, and 
  • The cost of construction materials in the area
 Download also:

3 Comments

  1. I must be getting dumber in my old age.
    I don't understand your website....too many adds, links, that have nothing to do with what I want.
    Simply....where is the "Design of Raft Foundation Excel Sheet" spreadsheet download button?
    Am I missing something?.....login....subscription...what??

    ReplyDelete
  2. Hi.
    Is it possible to get some information regarding the input data for the 'design of raft foundation' Excel sheet? I mean, it would be helpful to know how the values of the Sheet1 (i. e., load combinations) were obtained.
    Thanks in advance for your answer.

    ReplyDelete
  3. I think its not possible to design raft using ordinary spreadsheet. It requires SFD and BMD calculations based on loads combination. Adding to that, so far, I have not come across any building supported on just four columns. Various other useful spread sheets other than raft are available which is very helpful for beginners. Nice work please keep it up.

    ReplyDelete

Post a Comment

Previous Post Next Post