A bubble deck slab has a twodimensional arrangement of voids within the slabs to reduce selfweight. The slab is very important structure member in building and slab is one of the largest member consuming concrete 2. Meshed model of bubble deck slab with elliptical balls. Pdf bubbledeck is the invention of jorgen bruenig, who devised the first biaxial hollow slab now known as bubbledeck in denmark. Bubble deck is the invention of jorgen bruenig in the 1990s, who developed the. Although the strengthened bubble deck had low deflection when compared to an unstrengthened bubble deck slab. It was invented by jorganbreuningof denmark about 20 years ago. When the load acting on the slab is large or clear span between columns is more, the slab thickness goes on increasing. This is a really clever idea that takes out all the stuff in the middle that you dont really need, and replacing it with air. An overview neeraj tiwari1 sana zafar2 1,2madan mohan malviya university of technology, gorakhpur abstractthe bubble deck slab is a newly designed biaxial concrete floor slab system. Test report biegung from the technical university of darmstadt germany enclosure a2. Hollow core a comparison was made between bubble deck and hollow core deck. Report from the eindhoven university of technology the.
It leads to the consumption of more material such as concrete. Heatingcooling through piping in slab report from cowi for heating, savings up to 30 % for cooling, savings up to 85 % in total, energy savings of 3050 % are realistic european conditions. Voided slab bubble deck technology the first hollow concrete block was designed in 1890 by harmon s. The entire carrying capacity of such combined slabs is thereby fully. Meshed model of bubble deck slab with spherical balls fig 4. Bubble deck slab the best solution for above two problems is bubble deck slab. View and download powerpoint presentations on bubble deck slab ppt. The behavior of bubble deck slabs is influenced by the ratio of bubble diameter to slab thickness.
Bubble deck slab system concrete precast concrete scribd. Combination of this with a flat slab construction approach. A study on structural behaviour of bubble deck slab using. The bubble deck slab is mainly consisting three materials steel, plastic spheres polyethylene or hdpe and concrete. Based on the computerised finite element analysis and the design criteria from as 3600, it is the opinion of this division that the bubbledeck slab systems detailed in the attached drawings and designed to support all imposed loads would be capable of achieving the fireresistance level frl tabulated below if tested in accordance in accordance with. Voided biaxial slabs are reinforced concrete slabs bubblfdeck which voids reduce the amount of concrete. Experimental study on bubble deck slab using polypropylene. A project report submitted in partial fulfilment of the. The results are shown for the deck thickness 230 mm type 1 and 455 mm type 2.
A 3d rendering of the solid slab with the column supports is displayed in figure 1. A construction method by eliminating concrete from the neutral axis of a floor slab that is structurally not performing, as a result dramatically reducing in dead weight. Bubble deck is a revolutionary method of virtually eliminating concrete from the middle of a floor slab not performing any structural function, thereby dramatically reducing structural dead weight. Bubble deck slab seminar report, ppt, pdf for civil engineering. Bubbledeck design guide for compliance with bca using as3600 and ec2 prepared by. Tetra mesh is used in bubble deck slab due to irregular geometry of the slab. Differences can be due to the fact that the tests only were considered in a onewayspan fig. This project introduces the bubble deck slab its uses and advantages to constructs economical and light weight structure.
Explore bubble deck slab with free download of seminar report and ppt in pdf and doc format. High density polythene hdpe hollow spheres are placed in the center of slab by replacing the. The end result eliminates the use of concrete that has little carrying effect. Bamberg physical fitness center in germany is the first project where the bubbledeck.
Each solid slab finite element model has approximately 8,100 elements. After 10 years of experimenting, palmer patented the design in 1900. Bubble deck slab bubble deck slab also known as voided slab is a hollow, biaxial slab in which the structurally ineffective concrete in the middle part of the slab has been replaced with spherical plastic balls to create a grid of void forms inside the slab. The ultimate load capacities for bubbledeck slabs having bubble diameter to slab thickness of 0. Voided concrete slabs provide an open floor plate with fewer columns and no beams to limit design and ultimate use possibilities. The average shear strength was 76% of a solid slab bubbledeck tests and reports summary.
Hollow plastic balls are inserted into the slab and held in place by reinforcing steel. The bubble deck slab floor system can be used for story, roof and ground floor slabs. So, this is a small effort to get rid of this confusion by giving you many civil eng seminar topics with report. Bubbledeck design guide for compliance with bca using. Bubbledeck slab system concrete building engineering. A bubble deck slab is a technique of realistically disposing the concrete in the center of the slab, which does not perform any structural role, thus significantly reducing the dead weight of the. Bubble deck is based on a new patented technique the direct way of linking air and steel. Hollow slabs with innovative types of voids manmade. This slab is invented by jorgen breuning in denmark 1990s. Incorporation of recycled plastic bubbles as void formers permits 50% longer spans between columns. Bubble deck technology by gayathri rajendran on prezi.
Vtu civil engineering seminar topics with pdf reports and ppt posted by. From the evaluation of these results, bubble deck slab gives better performance than that of the conventional slab. Bubble deck slab is a method of virtually eliminating all concrete from the middle of a floor slab, which is not performing any. Bubble deck slab is a biaxial hollow core slab invented in denmark. It is a method of virtually eliminating all concrete from the middle of a floor. Bubble deck slab is a hollow, flat slab that spans in two directions, in which plastic balls are incorporated to replace, and therefore eliminate the concrete in the middle of a conventional slab which does not contribute to its structural performance. Also explore the seminar topics paper on bubble deck slab with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. Bubble deck slab with spherical and elliptical balls were modelled using tetra mesh, which is a four noded mesh. Bubble deck slab seminar report, ppt, pdf for civil. Bubbledeck is the patented integration technique of linking air, steel, and concrete in a twoway structural slab. The following fig 9 shows fixing partially manufactured bubble deck slab.
Skyscraper seminar report, ppt, pdf for civil engineering. Explore skyscraper with free download of seminar report and ppt in pdf and doc format. The main objective of this is to study performance of bubble deck flat slab. Analysis of bubble deck slab design by finite element method. The founder of bubble deck technology was jorgen breuning.
Bubbledeck is compared to a solid deck both practically and theoretically. The behaviour is exactly as for a solid deck, both for short and longterm situations. Bubbledeck north america llc advancing concrete design. The behaviour of bubble deck slabs is influenced by the ratio of bubble diameter to slab thickness. Structural behaviour of bubble deck slabs and its application. This new prefabricated construction technology is recently. Vtu civil engineering seminar topics with pdf reports and ppt. Case study bubble deck slab the geometry of the bubble deck slab is defined by spheres of a certain size, which are. The solid slab was generated as a thick shell of pure concrete while the bubble. Its a method of virtually eliminating all concrete from the middle of a floor slab, which is not performing any structural function, thereby dramatically reducing structural dead weight. It is a method of virtually eliminating all concrete from the. The main structural consequences of bubbledeck system.
Search cloud seminar report on bubble deck slab important. Use custom search function to get better results from our thousands of pages use for compulsory search eg. A voided slab is a concept that simply removes the excess concrete from the expensive part of the structure slab. New ways in concrete construction the biaxial hollow deck.
The bubbledeck is a twoway hollow deck in which plastic balls serves the. Civil engineering seminar topicsfree download engineering. Bubble slab is a biaxial hollow core slab invented in denmark. It was concluded that bubble deck slab obtaining a muchimproved flexural capacity and stiffness and a shear capacity of at least 70% from that of a solid slab realizing 3050% concrete economy in comparison with the solid slab. It is now gaining popularity both in europe and in asia. Understanding the concept of bubble deck civil engineering. Void formers inside the flat slab eliminates at least 30% of a slab s dead weight. Through findorffs implementation of bubbledeck technology our clients experience cost savings, increase in sustainability efforts, and accelerated schedules. Also explore the seminar topics paper on skyscraper with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. If it can be imagined, concrete can help make it happen and there is a good chance voided concrete slabs will make it happen more flexibly.
778 1358 1603 59 1628 1092 1633 499 332 430 777 995 1411 1270 78 155 1242 505 1443 568 1269 771 575 1355 78 275 1419 564 247 775 1430 520 1438 776 43 233 1196