Design Of Reinforced Concrete Structures ii Two-Way Slabs. Bar Bending Schedule for Two Way Slab.
What Is Two Way Slab Design Reinforcement Details Green House Construction Youtube
The Wire Reinforcing Institute recommends the use of the Subgrade Drag Theory for slabs up to 150 feet in length.
. Simply supported One way slab A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 375 m apart. Two way slab reinforcement detail drawing pdf. Get One Month FREE at LinkedIn Learninghttpsbitly2Zq5t95Full Learn To Read Structural Drawing Course at the cheapest ratehttpbitly2Xw0dkvThis vide.
Slab supported directly by columns are called flat slab. Slab thickness of 7 in. When the ratio LSis less than 20 slab is called two-way slab as shown in the fig.
Mehr als 7 Millionen monatliche Besucher und 8100 Verkäufer vertrauen uns bereit Download Free PDF. Reinforcement Details Loads After all percentages of the static moments in the column and middle strip are determined the steel reinforcement can be calculated for negative and positive moments in each strip. FIGURE 13123B VALUES OF K FOR BEAMS AND SLABS K 01 K 005 K 0 Lsyt k4k5Lsytb k4 1 -Kλ where λ ΣAtrtrminAs.
Two-Way Concrete Floor Slab with Beams Design and Detailing. Basic Steps in Two-way Slab Design 1. The slab has to carry a live load of 4 KN per meter square.
X 18 in edge beam dimensions 14 in. A floor slab in a building where stability is provided by shear walls in one direction N-S. Result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete.
Step 2 Find Out the Cutting Length of Bars. Distribute moments transverse at critical sections to column and middle-strip and if. In two way slab main reinforcement is provided along both direction.
Slab shear strength two-way shear Check the adequacy of slab thickness for punching shear two-way shear at an interior column Figure 4. Assume corners are held down. One-way spanning slabs should be treated as beams of unit width and Chapter 2 should be followed except for minimum shear reinforcement.
Slab reinforcement detail drawing pdf Slab gebraucht - Nr. Determine moments at critical sections in each direction normally the negative moments at supports and positive moment near mid-span. F c 3 ksi f y 50 ksi.
Slab ll a b m Case C a D C L C C C L C. Two way slab design. Therefore Span Ratio m 1319 068.
Clear area for each slab is 13 19. Choose Design method Equivalent Frame Method- use elastic frame analysis to. Slab supported on two sides and bending takes place predominantly.
Bending will take place in the two directions in a dish-like form. Two-Way Concrete Floor Slab with Beams Design and Detailing. Accordingly main reinforcement is.
X 27 in interior beam. 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. Slab may be supported on walls or beams or columns.
A slab is built to. S2t ACI 1332 and s45cm ACI 7123. Slabs could be simply supported.
Fcu 40 KNm2 fy 460KNm2. Choose slab thickness to control deflection. Also check if thickness is adequate for shear.
Determine the minimum thickness of slab from serviceability criteria of deflection control. 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. Slab Reinforcement of 2 way Slab.
In two way slab main reinforcement is provided along both direction. Step 3 Cover to reinforcement. Step 2 Design forces Draw panel of slab and indicate maximum design moments shears and in- plane loads if any per unit width of slab.
Q Design a reinforced concrete slab for a room of clear dimension 4-meter x 5 meters. 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.
Choose layout and type of slab. The slab has to carry a distributed permanent action of 10 kNm2 excluding slab self-weight and a variable action of 3. Number of Distribution Bars Length of Shorter Side Spacing 1 54001501 28 Numbers.
Is adequate for one-way shear. Number of Main Bars Length of Longer Side Spacing 1 60001501 41 Numbers. The imposed loading on the floor is 5 KNm2 and an allowance of 25KNm2 for finishes etc.
Type of slab is strongly affected by architectural and construction considerations. Please follows me SUBSCRIBE this channelTWO WAY SLAB. ΣAtr cross-sectional area of the transverse reinforcement along the development length Lsyt ΣAtrmin cross-sectional area of the minimum transverse reinforcement which may.
The slab is supported all around walls of width 300 mm. If ratio of longer span to shorter span is less than 2 then it is two-way slab otherwise one-way slab. Dec 18 2020 - Reinforcement detailing of a slab is done based on its support conditions.
Determine whether the slab is one-way or two-way slab by calculating aspect ratio. Maximum Spacing of Reinforcement At points of max. The basic design procedure of a two-way slab system has five steps.
Design steps of two-way slab. Step 1 Find out the Total Number of Main Bars Distribution Bars. And floor finishes 1 KN per meter square.
Slab beim führenden Marktplatz für Gebrauchtmaschinen kaufen. Use M20 Concrete and 415 steel. The slab is without drops and is supported internally and on the external long sides by square columns.
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. Design of Slab Examples and Tutorials by Sharifah Maszura Syed Mohsin Example 1. In one way slab main reinforcement is parallel to shorter direction and the reinforcement parallel to longer direction is called distribution steel.
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