A simply supported rectangular beam of length L has a width of b and an effective depth of d. Compression steel bars are placed at a distance d' from the extreme concrete compressive fiber. The beam supports service dead loads of wD and wl, respectively. Use fc'= 28 MPa and fy = 420 MPa. For the reinforcements, use 4 20 mm tension steel bars and 4 10 mm compression steel bars. b= 390 mm d= 615 mm d'= 165 mm L= 5.85 m Wd= 27.79 kN/m WI= 32. 25 KN/m Questions 1. Calculate the height of the neutral axis measured from the extreme compression fiber. 2. Calculate the strength reduction factor for the given beam. B. Calculate the design moment for the given beam.

Q: Q2 : Design the beam showing below for shear by using Ultimate Strength Design method according to…

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Q: simply supported beam is reinforced with 4 – 28 mm ø at the bottom and 2 – 28 mm ø at the top of the…

A: Given  fc’ = 30 MPa, fy = 415 MPa. Balanced steel ratio ρb = 0.031 Reduction factor= 0.9

Q: Assume Grade 50 steel and use f. = 5,000 psi for parts (a) thru (b). (a) The beam below is subjected…

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Q: Problem # 3: For the given beam, use 150 pcf concrete: Consider two possible load combinations: a.…

A: Given: Load conditions: U=1.2D+1.6L U=1.4D Loads: WD=3.7 kip/ft + self weight WL=0.75 kip/ft…

Q: The rectangular RC members under uniform load, the cross section of the beam is b×h = 250×500 mm. A…

A: Solution Given Data Md= 100 kNmV=90 kNfc=14.3 MPafy=360 MPa

Q: 14" #3 stirrup 25" 4- #11

A: Solution Given Data f'c=3500 psify=60000 psid=22 in

Q: 3.4 The required flexural (bending moment) strength is of a reinforced concrete beam is Mu= 260…

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Q: Given a 10"X16" reinforced concrete beam section as shown. The main reinforcing rebars consist of…

A: f'c=3000 psify=60 ksiTo determine:Theoretical nominal bending moment

Q: Assume the section has cracked and use the transformed-area method to compute the required…

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Q: 2 A rectangular beam has b=320 mm and d=470 mm. The beam will be designed to carry a service dead…

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Q: A composite beam is made of two brass [E = 119 GPa] plates bonded to an aluminum [E = 73 GPa] bar,…

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Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.