In two way slab main reinforcement is provided along both direction. Slabs could be simply supported continuous or cantilever.
12 Difference Between One Way And Two Way Slab Civil Lead
The materials to be used are grade C25 concrete and grade 500 reinforcement.
. FIGURE 13123B VALUES OF K FOR BEAMS AND SLABS K 01 K 005 K 0 Lsyt k4k5Lsytb k4 1 -Kλ where λ ΣAtrtrminAs. Number of Distribution Bars Length of Shorter Side Spacing 1 54001501 28 Numbers. Two-Way Concrete Floor Slab with Beams Design and Detailing.
Number of Main Bars Length of Longer Side Spacing 1 60001501 41 Numbers. The slab is without drops and is supported internally and on the external long sides by square columns. The imposed loading on the floor is 5 KNm2 and an allowance of 25KNm2 for finishes etc.
Two way slab design. Distribute moments transverse at critical sections to column and middle-strip and if. There may be beams on all four sides as shown in Figure 3-1b so that two-way slab action is obtained.
Therefore Span Ratio m 1319 068. In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel. Get One Month FREE at LinkedIn Learninghttpsbitly2Zq5t95Full Learn To Read Structural Drawing Course at the cheapest ratehttpbitly2Xw0dkvThis vide.
Assume corners are held down. Slabs may be supported on two opposite sides only as shown in Figure 3-1a in which case the structural action of the slab is essentially one-way the loads being carried by the slab in the direction perpendicular to the supporting beams. ACI 360 Design of Slabs-on-Grade refers to this as a Type B slab.
Design the slab system shown in Figure 1 for an intermediate floor where the story height 12 ft column cross- sectional dimensions 18 in. The basic design procedure of a two-way slab system has five steps. In two way slab the corners may be held down by restraints or may be allowed to lift.
In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel. A floor slab in a building where stability is provided by shear walls in one direction N-S. Slabs could be simply supported.
Accordingly main reinforcement is. The Wire Reinforcing Institute recommends the use of the Subgrade Drag Theory for slabs up to 150 feet in length. ΣAtr cross-sectional area of the transverse reinforcement along the development length Lsyt ΣAtrmin cross-sectional area of the minimum transverse reinforcement which may.
Bar Bending Schedule for Two Way Slab. X 27 in interior beam. Step 2 Find Out the Cutting Length of Bars.
Q Design a reinforced concrete slab for a room of clear dimension 4-meter x 5 meters. Clear area for each slab is 13 19. When the ratio LSis less than 20 slab is called two-way slab as shown in the fig.
Step 1 Find out the Total Number of Main Bars Distribution Bars. In two way slab main reinforcement is provided along both direction. Slab ll a b m Case C a D C L C C C L C.
A slab is built to. X 18 in edge beam dimensions 14 in. The slabs having ratio of longer length to its shorter length LyLx greater than 2 is called one way slab otherwise as two way slab.
Use M20 Concrete and 415 steel. A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 375 m apart. Determine moments at critical sections in each direction normally the negative moments at supports and positive moment near mid-span.
27Development and splices of reinforcing steel 28Joint details 29Reinforcing steel supports 210Special details for seismic design of frames joints walls diaphragms and two-way slabs 211Corrosion-resistant coatings for reinforcing steel Details and Detailing of Concrete Reinforcement ACI 315-99 Reported by ACI Committee 315. Design of Two-way Slabs Example 12 Use i WSD ii USD to design the two-way slab shown below carrying floor finish 30 psf random wall 50 psf and live load 60 psf Given. Two-Way Concrete Floor Slab with Beams Design and Detailing.
The slab has to carry a live load of 4 KN per meter square. From the design through installation we work collaboratively with architects engineers contractors developers and owners to reduce risk bu. F c 3 ksi f y 50 ksi.
Up to 24 cash back 6 RCC. And floor finishes 1 KN per meter square. The slab has to carry a distributed permanent action of 10 kNm2 excluding slab self-weight and a variable action of 30 kNm2.
Slab culvert with splayed wing wall 20 7 Two span pipe culvert 24 8 Two span tee beam bridge with square returns 25 9 Simply supported one way slab 30 10 Simply supported two way slab 32 11 Restrained two way slab 34 12 Singly reinforced beam partially fixed 38 13 Doubly reinforced beam partially fixed 40. Two way slab reinforcement detail drawing pdf. Result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete.
27-Development and splices of reinforcement 28-Connection details 29-Reinforcement supports 210-Special details for seismic design of frames joints walls diaphragms and two-way slabs 21l-Corrosion resistant coatings for reinforcement PART B-RESPONSIBILITIES OF THE DETAILER Chapter 3-Placing drawings pg. Fcu 40 KNm2 fy 460KNm2. The slab is outside buildings which.
The slab is supported all around walls of width 300 mm. Cmu wall detail dwg. Design Of Reinforced Concrete Structures ii Two-Way Slabs.
Bending will take place in the two directions in a dish-like form.
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