Civil Engineers Forum

  • Home
  • Software
  • Manuals
  • Forum
  • Topics
    • Difference
    • Surveying and Levelling
    • Materials
      • Cement
      • Concrete
        • Cement vs Concrete
      • Steel
      • Brick
      • Timber
      • Sand
    • Structural
      • House
        • Construction Process
        • Reduce Construction Cost
        • Slab
        • Wall
        • Basement
        • Garage
        • Home Improvement
          • Outdoor
        • Driveway
        • Flooring
      • Bridge
      • Dam
      • Retaining Wall
      • Swimming Pool
      • Instrument
      • Members
    • RCC
    • Prestressed Concrete
    • Geotech
    • Environment
      • Different Energy Sources
        • Geothermal Energy
        • Natural Gas
        • Wind Energy Facts
        • Hydropower
        • Petroleum
    • Transportation
    • WRE
    • CPM
    • Others
      • Why You Should Become a Civil Engineer
      • Civil Engineering Higher Study
      • Civil Engineering Technology
  • Privacy
  • About

One Way Slab Vs Two Way Slab | Difference Between One Way Slab and Two Way Slab

One Way Slab

One way slab is supported on two opposite side only thus structural action is only at one direction. Total load is carried in the direction perpendicular to the supporting beam. If a slab is supported on all the four sides but the ratio of longer span (l) to shorten span (b)  is greater than 2, then the slab will be considered as one way slab. Because due to the huge difference in lengths, load is not transferred to the shorter beams. Main reinforcement is provided in only one direction for one way slabs.

one way slab vs two way slab
one way slab

Two Way Slab

Two way slabs are the slabs that are supported on four sides and the ratio of longer span (l) to shorter span (b) is less than 2. In two way slabs, load will be carried in both the directions. So, main reinforcement is provided in both direction for two way slabs.

two way slabs
two way slabs

Difference Between One Way Slab and Two Way Slab

There are some basic differences between one way slabs and two way slabs. To clear the concept of one way and two way slabs a table is shown below.

One Way Slab

Two Way Slab

One way slab is supported by beams in only 2 sides. Two way slab is supported by beams in all four sides.
The ratio of longer span panel (L) to shorter span panel (B) is equal or greater than 2. Thus, L/B >= 2 The ratio of longer span panel (L) to shorter span panel (B) is less than 2. Thus, L/B < 2.
Main reinforcement is provided in only one direction for one way slabs. Main reinforcement is provided in both the direction for two way slabs.

 

Liked the article on one way and two way slabs? Subscribe us to get important news and articles directly to your inbox.

Comments

  1. Badmus azeezat adedoyin says

    September 15, 2013 at 10:27 am

    Am very glad 2 find ans 2 my questn more grease 2 ur elbow

    Reply
    • Asekeen says

      September 17, 2013 at 2:30 am

      Thanks for the inspiration. 🙂

      Reply
      • Mansoor says

        February 9, 2014 at 8:19 pm

        15′ lenth 19′ width slab..give me the how many dia bars i have to provide…along shorter and longar direction..and in which side i have to give the crank…

        Reply
  2. Anwar Shefa says

    September 18, 2013 at 3:57 am

    Thank you for a good cooperation in civil engineering study.

    Reply
  3. Egbedokun Taiwo says

    October 3, 2013 at 2:14 pm

    I love this post. And it has realy provided answers to few questions on my mind. Thanks

    Reply
  4. rahul mehta says

    October 5, 2013 at 9:53 am

    hey, you doing a great work for civil engineering students like me. all lights and claps to the admin asekeen 🙂 this forum helps me a lot.

    Reply
  5. hammed ola says

    October 8, 2013 at 2:36 am

    I am very grateful for answering my questions on one way slabs and two way slabs.

    Reply
  6. mark says

    October 9, 2013 at 6:50 pm

    You are wonderful guy and great initiative for civil engineers. Nice explanation on one way slab and two way slab difference.

    Reply
  7. ramachandran says

    November 28, 2013 at 7:50 pm

    50 foot length and 21 foot width what type slab

    Reply
    • Shajnin says

      December 3, 2013 at 1:09 am

      One way slab.

      Reply
    • AASHIF KHAN says

      June 13, 2015 at 5:43 pm

      one way

      Reply
  8. rahul kumar says

    January 14, 2014 at 12:26 am

    good and satisfactory answer which gives clear concept.

    Reply
  9. nick says

    March 6, 2014 at 9:28 am

    9.6m width 6.5 length?

    Reply
    • shahe says

      March 14, 2014 at 11:55 pm

      Two way slab as width/length < 2

      Reply
  10. abdi cadiim says

    April 16, 2015 at 12:20 am

    mashaallah this page is usefull for all engineers. I hope to get alot of theory.

    Reply
  11. asish panigrahi says

    May 9, 2015 at 9:22 am

    This data is good for know the difference between one way slab and two way slab but if u provide to how to reinforcement design in one way and two way slab so its very helpfull

    Reply
  12. AASHIF KHAN says

    June 13, 2015 at 5:45 pm

    how the system of provide the r/f of slab

    Reply
  13. Ashutosh says

    August 17, 2015 at 1:11 pm

    Thanks for the post … it helped me a lot

    Reply
  14. kamran says

    August 29, 2015 at 12:12 pm

    Sir
    pleas tell me in detail in one salb and two way slab,,,,i im waiting for yours good response,,,,,,

    Reply
  15. aRUN says

    August 29, 2015 at 6:54 pm

    how will u find it after moulding???

    Reply
  16. SHAHID SAQI says

    September 17, 2015 at 9:23 am

    thanks alot. it help me alot to become a civil engineer

    Reply
  17. Hitesh Patel says

    October 14, 2015 at 5:24 pm

    given clearification is very excellent

    Reply
  18. David says

    October 29, 2015 at 12:44 pm

    Thank you! I’m very happy that I was able to clarify my doubts.

    Reply
  19. Gyanendra mishra says

    December 14, 2016 at 2:49 pm

    I liked this chapter.and I want more about r.c.c.

    Reply

Leave a Reply to shahe Cancel reply

Your email address will not be published. Required fields are marked *

(Spamcheck Enabled)

Recent Posts

  • How to Make Portland Cement: The Full Manufacturing Process
  • Concrete Stain vs Paint | What is The Difference Between Concrete Staining and Painting
  • OSB Board vs MDF Board vs Plywood – What’s The Difference?
  • Faced Vs Unfaced Insulation – Difference Between Faced Insulation and Unfaced Insulation
  • Eco Wood Treatment: Definition, Benefits and Usage of Eco Wood Treatment
Ask Question
Copyright 2016 - Civil Engineers Forum