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- Determine the flexural strength in ft kips of a W12 × 35 of A242 (Fy = 50ksi) steel subject to a. Continuous lateral support. Blank 1 b. An unbraced length of 10 ft with Cb = 1.0 c. An unbraced length of 20 ft with Cb = 1.0A cantilever is to be constructed from a 40 mm x 60 mm T-section beam with a uniform thickness of 5 mm. The cantilever is to carry a u.d.1. over its complete length of 1m. Determine the maximum u.d.1. that the cantilever can carry if yielding is permitted over the lower part of the web to a depth of 10 mm. бy = 225 MN/m2.An exterior T-beam has a clear simply supported length of 6.75m. It has a clear distance to the next webof 3.5m. The base of the web to the beam is 350mm and has an effective depth of 500mm. Use 4-28mm diameter reinforcements with a slab thickness of 120 mm. f'c = 21 Mpa ; fy = 415 Mpa. a. effective width of the flange b. depth of compression block of the beam c. total area of the compression block d. ultimate moment capacity of the beam
- Subject: Reinforced concrete Design- Civil Engineering A rectangular beam reinforced for tension has b = 300mm, d = 480mm. The beam is reinforced with 7 of 25mm bars with fc' = 21MPa and fy = 415MPa. If the beam is cantilever, 3m long and supports a uniform dead load of 15kN/m (including its own weight) applied along its entire length, the maximum value of the concentrated live load that can be applied 2m from the free end is kn. Choices: A. 141kN B. 114KN C. 213kN D. 231kNA T-beam for a floor system has a slab thickness of 100 mm and a total depth of 550 mm. It has a web thickness of 300 mm. The T-beam is cast monolithically with the slab. The beam has a simple span of 6 meter with a spacing of 2.4 m center to center. The beam carries a live load moment of 194 kN-m and a dead load moment of 94 kN-m, fc’=20.7 MPa, fy = 413 MPa. Assume steel covering of 65 mm.a. Determine the effective width of flange.b. Determine depth of compression flange. c. Determine the required steel area.The beam is subjected to a service dead load of 2.5k/ft for the entire length and a service live load of 20 kips at 4 ft from left end. The self weight of the beam b = 12in h=24 in has to be added to the dead load for the calculations. How much is the reaction for the design load at point A and paint B?
- A simply-supported T-beam is subjected to two pairs of distributed loads: pair 1 (??1, ??1) and pair 2 (??2, ??2). The geometric, material and loading properties are all given.bf = 1326mmbw = 425mmt = 268mmLbeam = 13.4mWD1 = 54 kN/mWD2 = 152 kN/mWL1 = 53.4 kN/mWL2 = 181.7 kN/mfc' = 22.8 MPafy = 179.9 MPad = 879mmd' = 98mm 1. Solve for the height of the compression stress block using pair 1. 2. Solve for the theoretical steel area using pair 1. 3. Using ?? = 0.004, solve for the theoretical steel area using pair 2. 4. Using ?? = 0.005, solve for the theoretical steel area using pair 2.A simply supported beam with a span length of 4.8 m is laterally supported atits ends and is subjected to a dead load = 8 kN/m (including the weight of thebeam) and live load = 10 kN/m. If Fy = 345 MPa, is a PIPE8SCH80adequate?A flooring system consists of parallel I-beam sections spaced at 3 m on centers with simple spans of 6m. The beam supports a 200mm thick slab that laterally supports the top of the beams. The flooring system is designed for a superimposed load of 1750 N/m^2 The properties of the I-beam sections are: d= 352mm, tw= 7mm bf=170 mm, tf= 10mm Ix= 0.00012m^4, W= 44.85 kg/m Fy- 248 MPa,E= 200,000 GPa 1. Calculate the plastic section of the steel section in mm^3 2. Calculate the nominal strength (kN.m) of an individual beam if it is laterally supported by the concrete slab. 3. Calculate the unfactored service dead load on an individual beam in kN/m 4. Calculate the maximum service live load (kPa) the beam can sustain under LRFD provisions using φb= 0.9 5. Calculate the maximum live load (kPa) the beam can sustain under ASD provisions using Ωb=1.67
- : At a cross section in a T-beam with flange width b= 600 mm,effective depth d=375 mm, flange thickness hf=125 mm, width of web bw=200mm,flexural reinforcement=4T32, Design ultimate shear force V = 157.5 kN. Determine thespacing of 10 mm diameter links. Assume fcu= 30 N/mm2, fyv=250 N/mm2 fcu=30N/mm2Analyze completely the compound truss loaded as shwon below.Problem 1. A W30 x 116 beam hasthe top flange restrained againstlateral displacement and rotationand has an unstiffened web. A pointload is applied to the top flange at2m. From the left support. The beamspans 12 m. Use A36 steel with yieldstrength of Fy = 248 Mpa. a. Compute the maximum value of point loadthat may be applied without web yieldingoccurring. b. Compute the maximum value of point loadthat may be applied without web cripplingoccurring. Properties of W30 x 116d = 762 mmK = 41.28 mmbf = 266.7 mmtf = 21.59 mmtw = 14.33 mm