W9 - Tutorial Questions 2023 - ASSIGNMENT PREP

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Mechanical Engineering

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Jan 9, 2024

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1. The layout of a multi-storey hospital building is shown in the figure below in which the floor system is supported on a frame of steel beams and columns. Part A: Loads (Project) BUILDING STRUCTURESTutorial 7: (for Week 9)
Use the technical specification given below for your calculation: The beams consist of primary beams and s econdary beams. The primary beams span in the x- axis with a length of ? 1 = 10000 mm in section AB, and a length of ? 2 = 9000 mm in section BC. The secondary beams span in the y-axis with a length of ? = 7000 mm. The beams (both the primary and secondary) used are 360UB50.7 . Assume all the beams are simply supported (See below). The columns used are 200UC59.5 . The total self-weight of the floor system consists of concrete slab, steel pan (i.e., metal floor), and the floor covering and ceiling. The load of the floor covering and the ceiling is 1kPa . The live load is 3kPa .
Answer the following parts for Question 1: a) Illustrate the loading path on one floor which is transmitted through the secondary and primary beams to the columns. Answer = See example given in Tutorial, draw with pen. First find if one or two-way slab : A&B spacing = 2500mm (L1/4) and B&C spacing = 3000mm (L2/3) Section AB = 7000/2500 = 2.8. This is greater than 2 so that means it is a one-way slab . Section BC = 7000/3000 = 2.3 This is greater than 2 so that means it is a one-way slab . b) Calculate the uniformly distributed load due to the dead load of the floor system only . Express your answer in 𝐤𝐍/? ? or kPa . Floor System: Self-weight of concrete slab : Thickness of concrete slab x unit weight of concrete (125mm/1000) = 0.125m x (2400kgm3/1000 = 2.4 x Gravity 9.81) = 23.544 = 0.125 x 23.544 = 2.943kPa Self-weight of metal floor: Self mass of metal floor per m2 x Gravity Self-weight of covering and ceiling: Self-weight of for covering and ceiling Toal uniformly distributed load due to the floor system: Add them all together and provide in kPa and provide only 4 decimal places. c) Calculate the linear load on the typical secondary beam I due to the dead load of the floor system only . Express your answer in 𝐤𝐍/? .
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