The distance between centre lines of rails of broad gauge track is 1.6 metres. Assuming a uniform soil pressure distribution on the sleeper, what will the length of sleeper (in m) for most efficient distribution of bending moment on sleeper? (Round off to two decimal places).
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- Q1: For the one way slab system shown in Fig (2), Find maximum positive moment and maximum negative moment In beams and design the beam for both WL = Wa = All Columns = 250* 400 All Beams = Student bw L Wa WL, kN/m h, mm 4m 1.5m mm 1 17 300 150 1.5 8.75 1.4 450Determine the maximum compressive stress in the loaded beam shown. 50 kN 10 kN/m BA 5 m 5 m 5 m 5 m O 1450.55 MPa O 2019.75 MPa O 750 MPa О 250 МPа O 45.44 MPa O 673.25 MPa O 785.44 MPa O 36.81 MPa 180.93 МPа O 261.81 MPa NextI. Single-choice questions.: 5. Bridge piers belong to which part of a bridge? ( ) A. Bridge superstructure B. Bridge substructure C. Bridge deck system D. Bridge foundation 6. When calculating the load transverse distribution coefficient (m) near the bearing supports of a simply-supported beam bridge, which kind of calculation method is recommended? ( ) A. Lever principle method B. Hinge joint slab method C. Eccentric compression method D. G-M method
- Q3: The uniformly loaded isotropically reinforced concrete slab is simply supported at its four- edges, as shown in the figure. The nominal resistance moment m, = 26 kN.m/m. Using yield line analysis (virtual work ITERATION); calculate the uniform load values w, & wa (in kN/m²). 10.50 10.5-2x 4.40 08'8XXX Tue A concrete beam is post-tensioned by a cable carrying a pre-stress of 900 N/mm². At the jacking end, the slip was observed to be 8 mm. Find the percentage loss of stress due to anchorage slip if length of beam is (a) 20 m and (b) 5 m. Take E = 210 kN/mm².A wooden beam carries the loading shown. Determine the smallest allowable width b of the beam if the working stress in bending is 10 MPa. 2 kN/m 5 kN yox 200 mm B 1.0 m 2m 1.0 m C
- The foundation (base) of a long retaining wall is required to support the load (including self-weight of the base and the wall) and moment (this comes from the lateral loads on the wall) shown in Figure below.Determine the factor of safety against bearing capacity failure .Would the settlement of the base be uniform?Discuss your answer.A timber beam has a rectangular cross section, 150 mm wide by 300 mm deep, and is simply supported over a span of 4 m. The beam is subjected to a two-point loading at the quarter span points. If the beam fails in shear when the total of the two concentrated loads is 180 kN, determine the maximum shear stress at failure. Ans. 3 N/mm?.Q- Using a sleeper density of n+5, find out the number of sleepers required for constructing a broad gauge railway track of 0.64 km length.
- The floor system of a residential building consists of 125mm thick reinforced concrete slab (unit weight =23.6KN/m^3) resting on the three 8m spanned RC floor beams spaced at 2.7 meters on center. Size of RC beam is 200mm x 450mm. NSCP load factors: 1.2DL & 1.6LL. Assume simple supports. Calculate the unfactored slab load in KN/m? express your answer in 1 decimal place.A steel plate 2.5 m x 1.6 m x 100 mm thick is to be hoisted by a steel cable sling as shown in the figure. Assume the steel weighs 77.3 kN/cu.m. Determine the shear stress (MPa) in the 16 mm diameter pins through the clevis The correct answer is 45.33. Show solution.The foundation (base) of a long retaining wall is required to support the load (including self-weight of the base and the wall) and moment (this comes from the lateral loads on the wall) shown in Figure below Determine the factor of safety against bearing capacity failure (using TCVN & Terzaghi bearing capacity theory) Would the settlement of the base be uniform? Discuss your answer.