Two way slab design. The imposed loading on the floor is 5 KNm2 and an allowance of 25KNm2 for finishes etc.
Details Of Slab Reinforcement And Beam Framing Plan Dwg File How To Plan Reinforcement Slab
F c 3 ksi f y 50 ksi.
. In two way slab the corners may be held down by restraints or may be allowed to lift up. If ratio of longer span to shorter span is less than 2 then it is two-way slab otherwise one-way slab. In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel.
In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel. Two Way Waffle Slab with beams This slab system is used for office buildings low rise warehouses parking structures etc. It is suitable for small to large-scale constructions.
Slab ll a b m Case C a D C L C C C L C. One way spanning slabs. Find effective depth d assuming reinforcement diameter.
Deep ribs the concrete and steel quantities are relative low Expensive formwork expected. Therefore Span Ratio m 1319 068. Is adequate for one-way shear.
Consider the minimum development lengthrequired for the two. Q Design a reinforced concrete slab for a room of clear dimension 4-meter x 5 meters. Can be used for larger spans with relatively higher cost and higher deflections One-way joist system suitable span 6 to 9m with LL 4-6KNm2.
Tributary area for two-way shear is 16 575 2 18 14 2487 12 A Tributary u ft2 V q 0193 2487 480uu u u A Tributary kips do O. 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. In two way slab main reinforcement is provided along both direction.
Slab may be supported on walls or beams or columns. Use M20 Concrete and 415 steel. Slabs could be simply supported.
Slab supported directly by columns are called flat slab. Two Way Slab Reinforcement Details. Comparison of One-way and Two-way slab behavior Economic Choices One-way Slab on beams suitable span 3 to 6m with LL 3-5KNm2.
The slab has to carry a live load of 4 KN per meter square. 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. 10mm Distribution Bars 200mm CC Spacing.
Slabs could be simply supported continuous or cantilever. In general there are similar requirements for one-way and two ways slab when slab reinforcement detail drawings are prepared. And floor finishes 1 KN per meter square.
When the ratio LSis less than 20 slab is called two-way slab as shown in the fig. Development Length L d 40d. Bending will take place in the two directions in a dish-like form.
The slab is without drops and is supported internally and on the external long sides by square columns. Type of slab is strongly affected by architectural and construction considerations. For a reinforcement bar to reach its yield stress at a critical crosssection a minimum length of reinforcing bar an.
The following slab reinforcement arrangements are specified in. Determine whether the slab is one-way or two-way slab by calculating aspect ratio. Choose layout and type of slab.
Slab shear strength two-way shear Check the adequacy of slab thickness for punching shear two-way shear at an interior column Figure 4. Determine the minimum thickness of slab from serviceability criteria of deflection control. Slab may be supported on walls or beams or columns.
Fcu 40 KNm2 fy 460KNm2. Step 3 Cover to reinforcement Determine cover required to reinforcement as per Tables 116 and 117. Dec 18 2020 - Reinforcement detailing of a slab is done based on its support conditions.
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. 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. Use actual effec- tive depth in each direction.
There are 3 types of two-way slabs. For lower loads they can have constant. Slab supported on two sides and bending takes place predominantly.
Clear area for each slab is 13 19. One way slab animation 2022There is mainly one way and Two-way slab. Design steps of two-way slab.
Design Of Reinforced Concrete Structures ii Two-Way Slabs. The slab is supported all around walls of width 300 mm. Two-way concrete slabs with openings the static system and the design of reinforcement.
Assume corners are held down. Drawings showing the size and location of the reinforcement in a concrete structure. In two way slab main reinforcement is provided along both direction.
Top Extra Bar 8mm 150 mm cc both direction Bar. Two way slab reinforcement details drawing pdf. Get One Month FREE at LinkedIn Learninghttpsbitly2Zq5t95Full Learn To Read Structural Drawing Course at the cheapest ratehttpbitly2Xw0dkvThis vide.
In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel. Dec 18 2020 - Reinforcement detailing of a slab is done based on its support conditions. Slab supported directly by columns are called flat slab.
Two Way Solid Slab with beams This slab can be used for a wide variety of loading systems. Draw panel of slab and indicate maximum design moments shears and in- plane loads if any per unit width of slab. Slab size 6000 x 5400 x 150.
Slab thickness of 7 in. Beamless slabs Beamless slabs are supported only on columns and are applied mostly in large industrial and public buildings. Lets discussed the design code requirement specified for slab reinforcement details.
Slab supported on two sides and bending takes place predominantly. A floor slab in a building where stability is provided by shear walls in one direction N-S. Accordingly main reinforcement is.
Two Way Waffle Slab with Integral Beams. They are classified based on reinforcement placement in the slabOne-way Slab Reinforc. 10mm Main Bars 150mm CC spacing.
Concrete slabs are commonly divided into the following types. One way spanning slabs. Two-Way Concrete Floor Slab with Beams Design and Detailing CSA A233-14 Design the slab system shown in Figure 1 for an intermediate floor where the story height 37 m column cross- sectional dimensions 450 mm 450 mm edge beam dimensions 350 mm 700 mm interior beam dimensions.
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