Question
Download Solution PDFAs per IS 456 ∶ 2000, the nominal cover thickness specified to meet 1.5 hours of fire resistance in case of simply supported beams is _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcepts:
Minimum values of nominal cover of normal-weight aggregate concrete to be provided to all reinforcement including links to meet specified period of fire resistance shall be as given below:
|
Fire Resistance in hours |
Beam, in mm |
Slab, in mm |
Ribs, in mm |
|||
|
Simply Supported |
Continuous |
Simply Supported |
Continuous |
Simply Supported |
Continuous |
|
|
0.5 |
20 |
20 |
20 |
20 |
20 |
20 |
|
1 |
20 |
20 |
20 |
20 |
20 |
20 |
|
1.5 |
20 |
20 |
25 |
20 |
35 |
20 |
|
2 |
40 |
30 |
35 |
25 |
45 |
35 |
|
3 |
60 |
40 |
45 |
35 |
55 |
45 |
|
4 |
70 |
50 |
55 |
45 |
65 |
55 |
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