Civil Engineering :: Theory of Structures
- If a concrete column 200 × 200 mm in cross-section is reinforced with four steel bars of 1200 mm² total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm² and Es is 15 Ec
- Slenderness ratio of a long column, is
- The ratio of the area of cross-section of a circular section to the area of its core, is
- A truss containing j joints and m members, will be a simple truss if
- Flat spiral springs
- The ratio of lateral strain to axial strain of a homogeneous material, is known
- A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2 MN/mm², the tensile force developed at a temperature of 50°C, is
- In case of principal axes of a section
- A close coil helical spring when subjected to a moment M having its axis along the axis of the helix
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