Question 2: Design the base plate for a W12 * 58 column of A36 steel with a factored axial compression load of 300 kips. Assume that the plate is covering all the area of concrete support. Concrete compressive strength of 4 ksi.
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- A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The beams are spaced at 7 feet 6 inches, and the span length is 30 feet. The superimposed loads are as follows: construction load = 20 psf, partition load = 10 psf, weight of ceiling and light fixtures = 5 psf, and live load = 60 psf, A992 steel is used, and fc=4 ksi. Determine whether the flexural strength is adequate. a. Use LRFD. b. Use ASD.A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with d-20-mm-dismeter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is M0 mm and at the bottom is 70 mm. Use concrete strength r'e-21 MPa und steel yield strength fy 415 MPa for 20- mm bars and fy= 275 MPA for 16 mm bars Detenmine the design moment capacity n kN m of the beam in negative bending. A 40.06 O45.07 C. 42.70 D47.55ス F. reinforced concete structure is shown The floor framing plan oF in the figure. The beams are 280 mm wide and S20 mm deep, and the slob is 110mm thick an edditional (super impes) veight,1 and live lo ad of OTher than conerete weight, the floor subjected other to Is dead load of 3k Pa si2 k Por. Unit weight of concrete is 23.5 kN/m® le Determine the total uniform load on beam DEF and ABC axial load 20 Determme the total on columns A and B,D an) E 2Sm 티 2.Sm 6.2m 6.2m
- Situation #2 A concrete co lumn has a diameter 4 300 mm. The column has 6 6teel rinforcing bars. Each renforcing bar has a crocs-sectiomal area 4 J0o mm2. The column is I150m lorg and has a load 17 1,370 kn applied to a igid steel plati af the top y the column. The plati distributes the load evenly over the 4 the co lumn.) tumn) top E,- 300 GPa ard Ec=arGPa Find the sfress in the &feel ard in the concrete ard the defomation urder the load.Details of a rectangular column are as follows: Column width along X-axis-250 mm Column Depth along the Y-axis-600 mm 8-25 mm diameter bars distributed equally along the longer sides. 10 mm diameter ties spaced at 10 mm on centers Concrete 28th day Compressive strength, fc;=20.7 MPa Reinforcing Steel yield strength, fy-415 MPa Assume that compression steel yields. a) Which of the following gives the nominal balanced load Pb (kN). A = 90.4 mm b) Which of the following gives the nominal axial load (kN) that the column n carry at an eccentricity of 200 mm along the X axis from the centroidal Y-axis.The material of the bcam given below is C35-45- B50OC and it is good quality concrete. The cobcreie cover is gIYCD as 50 mm. Thc dimensions of the bcam are gven as be820 mm. bw:350mm.t130 m, b 700 mm. Tbe sbear force (Vd)is S50 EN and stirrup calcelations will be done in the span region othe beam. Ir 338 stirupis used to mcet the shear force, what is the maximum stimup spacing (cm) in span region? (s=2) 11 15 D13 017 Boş bırak Sonraki> Kapat
- RCDA reinforced concrete T- beam, section in Figure 2 (a), is subjected to an ultimate uniformload and concentrated loads as shown in the Figure 2(b). The beam is reinforced with 6-28 mm diameter tension bars at the point of maximum positive moment (at midspan -bars at the bottom), and 3-28 mm diameter tension bars at the point of maximum negativemoment (at the supports - bars at the top) .. The design properties used are: f ‘c = 21MPa and fy = 414 MPa, ; flange width = 650 mm, flange thickness is = 90 mm; webthickness = 250 mm; effective depth = 410 mm.Need to answerQ. Draw the shear and moment diagrams for the given loads;Q₁:Design a concrete column shown in figure using fe-28 MPa, fy- 420 MPa, ultimate applied load. P=545 KN B E 1500 P=350 KN b Section (a-a)Use the composite beam tables and select a W-shape and stud anchors for the following conditions: Span length = 18 6 Beam spacing = 9 ft Total slab thickness = 51 2 in. (the slab and deck combination weighs 57 psf). Lightweight concrete with a unit weight of 115 pcf is used Construction load = 20 psf Partition load = 20 psf Live load = 225 psf Fy=50 ksi and fc=4 ksi A cross section of the formed steel deck is shown in Figure P9.8-9. The maximum live-load deflection cannot exceed L/360 (use a lower-bound moment of inertia). a. Use LRFD. b. User ASD.
- Compute the Modulus of Rupture of the beam shown, in MPa. A 3.037 B 63.785 Ⓒ3.281 33.217 6 #25 350 mm. 460 mm 600 mm 70 mm 70 mm fy=420 MPa f = 24 MPaDesign Slab DEGH of the floor system shown below. Dead load pressure including the slab's weight is estimated at 5.3 kPa while live load pressure is 2.4 kPa. Use fc' = 21 MPa and fy = 345 MPa. The supporting beam is 350 mm x 500 mm. Use 12mm diameter bars. 6m A B 6m C 2.6 m D 2.6 m 2.6 m J E H K LL F I L"Q1.16-.A rectangular beam has dimensions of 270 mm by 670 mm with an effective depth of 620 mm and is reinforced with 5- 20 mm ø. Concrete cover is 50 mm. The concrete cylinder strength f'c = 30.7 MPa and the tensile strength in bending is the modulus of rupture. The yield point of the steel is 449.5 MPa. The beam carries a bending moment of 67 kN-m. Use transformed section method to answer the following: (1) Compute the concrete compression stress at the top, (2) Compute the concrete tension stress at the bottom, (3) Compute the stress in the steel. (4) Assess the adequacy of the beam design." Use the editor to format your answer width, b ... effective depth, d total depth, h