A cantilever of length 'L' carries a concentrated load W at the mid-span. If the free end is supported on a rigid prop. Which of the following option(s) is/are correct? 5W The prop reaction is 16 B 3L The point of contraflexure is at from fixed support. 11 3WL Magnitude of bending moment at the prop is 16 D 5WL Magnitude of bending moment under the concentrated load is 32

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Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.