• Figure below shows a house floor which uses 50 mm wide x 150 mmdeep timber joists spaced at 400 mm centres. If the maximumpermissible stress in the timber is limited to 7.5 N/mm2, determine themaximum allowable simply supported span of the floor if it supports thefollowing loads:• Dead Load of floor• Imposed Load of floor = 1.5kN/m²= 0.45kN/m?Floor boardsSpanCeiling150Joist50400 mm6/23/202128

The dimension of the joist used for the floor is 50 mm × 150 mm. The center to center distance of…

• Figure below shows a house floor which uses 50 mm wide x 150 mm deep timber joists spaced at 400 mm centres. If the permissible stress in the timber is limited to 7.5 N/mm?, determine the maximum allowable simply supported span of the floor if it supports the following loads: • Dead Load of floor • Imposed Load of floor = 1.5kN/m² maximum = 0.45kN/m2 Floor boards Ceiling Span 150 Joist 50 400 mm 6/23/2021 28

• Figure below shows a house floor which uses 50 mm wide x 150 mm deep timber joists spaced at 400 mm centres. If the permissible stress in the timber is limited to 7.5 N/mm?, determine the maximum allowable simply supported span of the floor if it supports the following loads: • Dead Load of floor • Imposed Load of floor = 1.5kN/m² maximum = 0.45kN/m2 Floor boards Ceiling Span 150 Joist 50 400 mm 6/23/2021 28

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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(b ) . A 200 mm wide x 300 mm deep timber beam is reinforced by steel plates 200 mm wide x 12 mm deep on the top and bottom surfaces as shown in Fig.1. If the maximum allowable stresses for the steel and timber are 120 MN/m2 and 8 MN/m2 respectively, determine the maximum bending moment which the beam can safely carry. For steel E = 200 GN/M2; for timber E = 10 GN/M2(10 marks )
A TIMBER BLOCK “400 x 400” mm SQUARE IS REINFORCED ON OPPOSITE SIDES BY A “400” mm AND ‘t’ mm THICK STEEL PLATES. DETERMINE THE THICKNESS ‘t’ SO THAT THE ASSEMBLY WILL SUPPORT AN AXIAL LOAD OF 1000 KN WITHOUT EXCEEDING A MAXIMUM TIMBER STRESS OF 12 MPa OR A MAXIMUM STRESS IN STEEL OF 350 MPa. MODULUS OF ELASTICITY OF STEEL AND TIMBER ARE 210 GPa & 7 GPa RESPECTIVELY
g) the maximum bending stress in timber. Enter your answer in MPa to 2 decimal places.
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