24.3. The slab of Fig. P24.3 may be considered fully fixed along three edges, but it is without support along the fourth, long side. It must carry a uniformly distributed live load of 80 psf plus an external dead load of 40 psf. Specify a suitable slab depth, and determine reinforcement and cutoff points. 24' 3 edges fixed Free edge 12'
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- Determine the flexural stresses in the following sections using the Transformed-area method 1) 48" 3 #9 | 12″ | 14" 21" 3" M = 100 ft-k n = 10Mu-WuiLn/16 A Calculate area of steel reinforcement and spacing between bars which required to resist ultimate moment at point B of one-way slab shown in figure, Assume: fy = 350 Nlmm², fc' =20 N/mm², Wu 20 kN/m² Ø=0.9, b=1000 mm, d=160 mm. bar diameter 12 mm 05 2006 Wartano B Ln1-3.6m Wail/11 Ww.cn/11 D E WaLa/16 Ln2-4mExample -Fig. 4-13 shows plan and cross-section of the footing slab with a square R.C. column 20cm outside with the following particulars Area at base of slab =1mx1m Arca at base of column = 28cm x 28cm Depth of slab at column face =40cm Depth of slab at outer edge - 15cm Reinforcement in the slab =16mm dia. bars both ways at 15cm c/c Reinforcement in the column 4 nos. 16mm dia. bars with 6mm dia binders at a pitch of 18cm c/c. Clear cover for slab is 50mm and for column is 25mm. Other particulars are as per drawing. If weight of 16mm dia. and 6mm dia. bars are 1-58kg and 0.22kg per r m respectively prepare a bill for payment of the above column. Rate of the works may be taken as follows:--- at K-202 1d-6mm 812cmc/c. -b-4Nos. 16mm BARS -25MM COVER prisest 20cm SECTION ON (ENLARGED) PLAN -1509545527 JOCIH La: 16mm @ 15CM C/C BOTH WAYS FIG 4-13 T-40CH- G.L. 25mm LOVER 20cm SQUAR ·b-4Nos 16mm @ BAR! -d-6mm BINT Ⓒ18 CMC P.L. -4CM SQUARE 28 CM SQUA S-4 Nos. 16m! SPLICE B SOMM COVER a-16mm &…
- Problem 3 (Pro 5.116 Textbook): Prob 5.16 A long concrete bearing wall has vertical expansion joints placed every 40 feet. Determine the required width of the gap in a joint if it is wide open at 20°F and just barely closed at 80°F. Assume a = 6 x10-6 /°F. %3D CONCHETE BEARING WALL EXPANSION JOINT 120 40' 401 40!2. Illustrate the cross-sections of the following slab along the X-X and Y-Y sections. X- Y Y Beam Beam Legend: A = 12 mm Ø bar @ 6" c/c alt. ckd. B = 10 mm Ø bar @ 10" c/c BWhat is the maximum required spacing (in mm.) of the main reinforcement for a 120mm thick one way slab if we consider a 1m unit strip? fy=320MPa
- 5. Determine whether the slabs shown is a two-way or one-way and also 3m S-1 approximately find the thickness of 4.5m S-2 each slab. 4m 2mGiven a 16x9m rectangular slab arrangement with columns at a 4m grid in the long direction by 3m grid in the short, determine the moments to be used for design at the supports and midspans of all slabs and design the corresponding reinforcement. Assume that the total slab thickness is 150mm, the weight of finishes is 280 kgs/m and imposed load is 450 kgs/m. Also given: f=500 N/mm², fa =30 N/mm², cover 30 mm.Determine the intensities and of w1 and w2 ofdistributed loading acting on the bottom of the slab so thatthis loading has an equivalent resultant force that is equalbut opposite to the resultant of the distributed loadingacting on the top of the plate.
- 6 7 8 the limiting diameter thickness ratio "D/t" of hollow circular section in compresion for non compact section is a. 0.070*E/Fy c. 0.31*E/Fy d. NOTA b. 0.11*E/Fy the limiting depth thickness ratio "h/tw" for flexure of hollow structural sections in webs for compact section is, a. 0.38*(E/Fy)0.50 b. 1.0*(E/FY)0.50 c. 2.42*(E/FY)0.50 d. NOTA the limiting depth thickness ratio "h/tw" for flexure of hollow structural section in webs for non compact section is, a. 1.0*(E/Fy)0.50 d. NOTA b. 2.42*(E/Fy)0.50 c. 5.70*(E/Fy)0.509. The reinforcement ratio of a section with 3-16 mm diameter tension bars, effective depth of 338 mm, and width of 280mm is nearest to a. 0.0064 b. 0.0055 c. 0.0076 d. 0.0123 10. Calculate the minimum reinforcement ratio for a given beam section if f’c=28MPa and fy=345 MPa. a. 0.00406 b. 0.00383 c. 0.00556 d. 0.00446 11. The minimum reinforcements need not be satisfied if As provided at every section is at least _______ greater than As required by analysis. a. 1/4 b. 1/2 c. 1⁄5 d. 1/3 12. For non-prestressed beams with Pu less than 0.10f’cAg, the strain at extreme layer of tension steel shall be at least a. 0.003 b. 0.002 c. 0.004 d. 0.005econd Year 2 Works: "Strength of Materials" 83 1-54* Three forces are applied along the centerline of a steel bar as shown in Fig. P1-54. Determine the internal forces on transverse cross sections in intervals AB, BC, and CD of the bar. 75 kN 100 kN A gridag B C D 50 kN Prof. Dr. Qais Fadhil Figure P1-54 1-57* Determine the internal forces on section a-a in the angle bracket shown in Fig. P1-57.