A 1 m square footing is founded at a depth of 1.80 cm on sand (foundation base thickness is 80 cm) and carries a vertical column load of 150 kN. The underlying sand has drained shear strength parameters of '=28°. First, compute the allowable shear load this column can carry using ASD with a sliding factor of safety of 1.1. Next, compute the allowable shear load for the case shear resistance using active and passive earth pressures and without them.

Q: 33. The moist mass of 0.1 ft of soil is 12.5 lb. if the moisture content is 14% and the specific…

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Q: Describe the change in soil volume that occurs with increase in loading.

A: When a force is added to a partly saturated surface, the volume decreases as a result of the…

Q: 1- Consider the soil profile shown below subjected to the uniformly distributed load, Ao, on the…

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Q: Describe the grain arrangement of loose granular soil.

A: Various structure arrangement of loose granular soil are :- 1- Single coarse grained structure: -…

Q: An aluminum alloy pipe with an outside diameter of 4.9 in. and a wall thickness of 2/16 in.…

A: Outside diameter = 4.9in wall thickness = 2/16in L = 21ft WA = 12 lb/ft WB = 18 lb/ft   It has been…

Q: Classify a soil with 30% clay, 15% silt, 32% sand, and 23% gravel. 100 90, 10 80 20 70 30 Clay 60 40…

A: Consider the given situation and graph The soil is 30% clay, 15% slit, 32% sand and 23% gravel

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.