The document discusses the bubble deck slab, highlighting its advantages in reducing structural dead weight and energy consumption while improving efficiency. It details various types of bubble decks, materials used, and construction techniques, alongside experimental findings that show significant improvements in shear strength and weight reduction. The conclusion emphasizes the potential for bubble deck slabs to shape the future of sustainable construction, particularly in high-rise and large-span structures.

1. Bubble deck slab
K.Renuka
14L41A0113
Technical seminar
on

2. Bubble deck slab

3. Contents:
• Introduction
 Type of bubble decks
 Materials
 construction
 Experimental studies
 advantages
 Case study
 Conclusion

4. Introduction:
 Eliminating all concrete.
 Reducing structural dead weight.
 Increasing the efficiency.
 Reduces the loads up to 30 to 50%.
 Less energy consumption.
 Used for storey, roof and ground floor slabs.
 It reduce earthquake damage.

5. Type of bubble decks:
 Type A- Filigree Elements
 Type B- Reinforcement Modules
 Type C- Finished Planks

6. Type A- Filigree Elements:
•Type-A is a combination of constructed and unconstructed
elements.
•Act as formwork and part of the finished depth .
•Supported by temporary stands.
•Additional steel may be inserted.
•techniques and finished as necessary

7. Type B:-Reinforcement Modules:
• pre-assembled sandwich of steel mesh and plastic bubbles.
•These components are brought to the site.

8. Type C:- Finished Planks:
•Is a shop-fabricated module.
•It is in the form of a plank and is delivered on site.
•Requires the use of support beams or load bearing walls.
• Best for shorter spans and limited construction schedules.

9. MATERIALS:
CONCREAT -the concrete is made of standard
Portland cement with max aggregate size of ¾ inch
STEEL-The steel
reinforcement is of MS
or HYSD can be used.
PLASTIC SPHERES
•hollow spheres made from
recycled high density
polyethylene.
Enough strength & rigidity.
Not porous.
Doesnt react chemically
with concrete or steel.

10. construction:
 The minimum distance between gaps is 1/9 of the gap diameter.
 Bubble Deck slab elements are plates with ribs on two
directions made of reinforced concrete .
 Connected with vertical ribs that go around the gaps.
 First construct bottom concrete part and then upper concrete
part.

11. EXPERIMENTAL STUDIES:
 1.Shear strength-80% of solid deck slab.
 2.Deflections -same as solid deck.
 3.Weight-40% less than a solid slab.
 4.Fire resistance -65% of solid slab.

12. ADVANTAGES:
Construction
 Easy incorporation of ducts and pipes into slab.
 Less work on construction site.
 Light in weight less equipment is required
 Earthquake resistant designs
Environment
•Less material and energy consumption
•Reducing CO2.
•Economy.
•Sustaining the natural resources.
•Faster construction time.

13. •MILLENNIUM TOWER
(ROTTERDAM)
•First high rise building erected with
Bubble Deck with 131m height
• Second Highest building in
Netherlands with 34 stores.
CASE STUDY:

14. SCOPE OF FUTURE USE:
•Used for constructing all types of building especially sky scrapers
•Best for larger span halls like theatres and auditoriums
•Pedestrian bridge decks
•Used in parking areas as less number of columns are required

15. CONCLUSION:
• Obviously this intellectual slab design may become the
future of slab construction which gives a tremendous
contribution in Sustainable development