A cube having dimensions of 1x1x1 meter is placed on the rock at bottom of the ocean. The compressive strength of concrete in the cube is 20 MPa. Find the load P that can be carried by this cube (Take y for water as 1 ton/m³). P 1000 m

Determine the stresses in steel and concrete of the concrete section shown. Assume N32 concrete & 6N20 steel bars used to resist tension as shown. Assume Mas 140kNm. Take the shrinkage strain as 450micron. Comment on the compliance of C1.8.6.2.2 of AS3600 (2018). (HOMEWORK) 350 60 b=320 D=450

A prestressed concrete beam is simply supported over a span of 11 m. the beam is reinforced with straight tendons situated as shown in the figure under a prestressing force of 682 kN. The beam is carrying a live load of 16.14 kN/m² and a dead load of 22.09 kN/m² excluding its own weight, Concrete weighs 20.39 kN/m³ with modulus of elasticity Ec=17,459.32 MPa. Assuming tension concrete does not crack, what is the midspan deflection due to the given loads. (Include the sign if it is negative) N.A. —— 600mm 400 mm 150mm 150mm 650mm WDL (kN/m) WLL (kN/m)

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