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Design and Construction

A timber joist 40 mm x 190 mm (dressed dimensions) spaced at 0.3 m on centers, carries a floor load of 2.4 kPa including the floor finish. The joist is supported by the girder at 3 m. Two lengths of joist are used L = 3 m and L = 3.5 m. EI is constant through the span.
What is the maximum shear stress when L =3 m?



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