The given member is a pipe bent at right angle at B, supported at C and loaded as shown. Section R-R and section S-S are not joints. Determine the type of internal reactions (normal force, shear force, torque or bending moment) that the sections are subjected to: a. section R-R is subjected to: b. section S-S is subjected to: 125 mm 75 mm 40 N B 100 mm R- R 100 mm -200 mm 24 N

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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.