A concrete building has 12 stories, each story is 3.2 m high. The facade column has 400 kN axial load per floor and a cross sectional area of 300mm×700mm. Calculate the shortening of the column at the ground floor level and the sixth floor when using concrete f'c= 25 N/mm² and 40 N/mm². Explain if there will be any effect on the facade.

Estimate the transverse tensile strength of the concrete in Problem 12.6.

A column in a building is subjected to the following load effects: 9 kips compression from dead load 5 kips compression from roof live load 6 kips compression from snow 7 kips compression from 3 inches of rain accumulated on the roof 8 kips compression from wind a. If lead and resistance factor design is used, determine the factored load (required strength) to be used in the design of the column. Which AISC load combination controls? b. What is the required design strength of the Column? c. What is the required nominal strength of the column for a resistance factor of 0.90? d. If allowable strength design is used, determine the required load capacity (required strength) to be used in the design of the column. Which AISC load combination controls? e. What is the required nominal strength of the column for a safety factor of 1.67?

Why is nothing added to the concrete quantities for wastage at the time of the takeoff?

If the soil-bearing pressure is 1500 psf and the concrete has a strength of 2500 psi, what size pier is needed to support a load of 4600 lb?

Refer to Figure P6.4. A strip load of q = 900 lb/ft2 is applied over a width B = 36 ft. Determine the increase in vertical stress at point A located z = 15 ft below the surface. Given: x = 27 ft. Figure P6.4

A continuous foundation is required in a soil where c=10kN/m2, =26, and =19.0kN/m3. The depth of the footing will be 1.0 m. The dead load and the live load are 600 kN/m and 400 kN/m, respectively. Determine the required width for the foundation based on allowable stress design with FS = 3, using Eq. (6.10) and Table 6.1.

Determine the maximum column load that can be applied on a 1.5 m 1.5 m square foundation, placed at a depth of 1.0 m within a soil, where = 19.0 kN/m3, c = 10 kN/m2 and =24. Allow a factor of safety of 3.0.

What size does an opening in concrete have to be before a deduction is made from the volume of concrete to account for the opening?

Repeat Problem 11.1 based on LRFD using the following factors: load factor for dead load = 1.25 load factor for live load = 1.75 strength reduction factor on the ultimate bearing capacity = 0.50 11.1 A continuous foundation is required in a soil where , , and . The depth of the footing will be 1.0 m. The dead load and the live load are 600 kN/m and 400 kN/m, respectively. Determine the required width for the foundation based on allowable stress design with FS = 3, using Eq. (6.10) and Table 6.1.