LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
63 views
in General by (45.3k points)
closed by

For a slab spanning in two directions, the ratio of span to the depth of slab should not exceed


1. 10
2. 20
3. 35
4. 50

1 Answer

0 votes
by (111k points)
selected by
 
Best answer
Correct Answer - Option 3 : 35

Concept:

Control of deflection:

The vertical deflection limit may generally be satisfied if

(a) Basic span to effective depth ratio for span up to m is

Types of Beams: \(\frac{{{\rm{span}}}}{{{\rm{effective\;depth}}}}\)

For cantilever → 7

For simply supported → 20

For continuous → 26

(b) For span > 10 m effective depth \( = \frac{{{{\left( {{\rm{span}}} \right)}^2}}}{{10 \times {\rm{A}}}}\)

Where ‘A’ is span to effective depth ratio for span up to 10 m.

(c) Deflection check for two way slab:

Support Condition

Span/overall depth

Mild steel

Fe415/Fe500

Simply supported

35

28

Continuous

40

32

 


So, From the above table It is clear that Span/depth ratio for two way slab should not be greater than 40. But From the given options, 35 is the closest one.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...