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- 1.) The following statement are true for HS Truck Loading except: CHOICES: a.) The semi trailer and rear axle are 30 ft apart b.) The total width is 14 feet c.) The semi trailer an the rear axle are 14 feet apart d.) The semi trailer axle is 80% of the total weight of the H truck 2.) This is a type of load varies in length when getting the maximum internal forces of a structure. a.) Moving load b.) Dead load c.) Live load d.) Axle load Thank youuu!!Please and Kindly Present FBD/s because I badly need it. A truck with axle loads shown rolls across a 10-m span. Compute the maximum bending moment and maximum shearing force.4. a small country bridge is made of for an AISI4340 steel with S-N curve behavior below a. What is its endurance limit b. How long will it last without failure if it takes on an average 10 pickup truck (10 tons weight) per hour(each car applies a single cycle of stress amplitude of 600 MPa. c. Due to opening of an nearby industry the bridge needs to be allow for additional 1 semi trailer ((20 tons weight) per hour) how long is the new design life of the bridge with additional load a63107 1500 1400 4340 low-alloy steel, quenched and tempered 425 °C Stress ratio R = -1 1300- 1200 e 1100 1000 900 800 700 600- 500 400 102 10 104 105 100 107 100 Number of cycles to failure, N Stress amplitude, o, (MPa)
- A standard HS truck is moving across a 25-m simple span. The wheel loads are Pa= 36 kN, Pb = 142 kN, and Pc = 142 kN. The distance between Pa and Pb is 4.4 m while Pb and Pc is 7.6 m. (provide FBD Diagrams and complete solution) a.) Determine Maximum Shearb.) Determine Maximum MomentA structural engineer has drawn the shear force diagram (SFD) for a beam as shown in figure below. He assumed the sign convention for shear force as downward force acting on the right of the section as positive and vice versa. All the loads acting on beam are vertically downwards. No couple is acting on any part of the beam. 17.408 kN 5 kN +ve SFD Parabola A O kN B D. OkN E -Ve SFD ve SFD 8.26 kN 10.792 kN 1.5 m 1m 6 m 2m a) Locate the position of supports on the beam. Identify the type of the beam. b) What type of loads are acting on the beam? Calculate the magnitude and position or extent (length of the beam) of the each load acting on the beam c) What are the magnitudes of support reactions?Q3 A typical rigid bar AB of length 5m for a cantilever type car shed as shown in figure is (5) hinged at B and supported in a horizontal position by 2 inclined steel wires of diameter 3 cm each is placed at a distance of 1.5 m and 3 m respectively from end A. 1.75 m B' a) Find safe load that can be applied at A. Assume load factor of 1.5. Take fy-460N/mm2. b) If end B is now replaced with a fixed support and with a fixed end moment of 46 kNm. Find the Safe load that can be applied at joint A.
- A propped 10 m cantilever beam is required to carry a load of 100 kN atmidspan. If the yield stress of mild steel is 300 MPa Compute the plastic section modulus of the given beam.7) Compute the elastic section modulus of the beam given that the shape factor isequal to 1.69.8) Compute for the plastic moment of the given beam if an additional uniform loadof 5kN/m is distributed along its total length.9) Calculate for the nominal/effective moment of the beam (with the 100 KN andthe 5KN/m loads), using a reduction factor of 0.90.10) Calculate for the nominal/effective moment of the beam (with the 100 KN andthe 5KN/m loads), using a safety factor of 1.67.Determine the load capacity of the angle LRFD. USE NSCP 2015.1. Three concentrated loads of 50kN, 30KN and 60 kN are loaded on a 14-meter-span fully-restrained beam and each applied at 7 m, 9m and 11 m from the left support respectively. Which of the following most nearly gives the elastic section modulus of the beam (in mm³) if the shape factor is 1.4 and the yield stress is 240 MPa. a.443.667 b. 546.778 c. 488.775 d. 505.952 e. 521.345 2. A W 14 x 68 having the following properties:Prop. of W 14 x 68d = 356.62 mm Sx = 1688 x 10³ mm³ Cb = 1.14bf = 254.89 mm Zx = 1885 x 10³ mm³ Lp = 2.65 mtf = 18.29 mm E = 200000 MPa Lr= 8.05 mFy = 345 MPa Elastic buckling stress: Fcr = 420 MPa Which of the ff. most nearly gives the flexural strength of the beam if the beam has an unbraced length of 12 m. a. 450 b. 709 c. 638 d. 486 e. 585 Which of the ff. most nearly gives the flexural strength of the beam if the beam has an unbraced length of 6 m. a. 585 b. 709 c. 638 d. 450 e. 486
- 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.Four wheel loads rolls as a unit across a 18 span. The loads are 50kn, 30kn, 20kn and 10kn separated respectively by distances of 1m, 3m and 6m. Compute the maximum shear in knThe system illustrated below is one of a beam ABCD, for which point A is ahinge, point B is supporting a downward load of 1000N, point C is connected tocable supporting a load of 275 N, point D is roller joint. The system is in static equilibrium, and you are asked to compute the verticalreactions at points A and D, assume that the weight of the beam is negligible. (I need help)