A structural steel beam supports a roof that weighs 20 psf. An analysis of the loads has the following: S=12 psf, Lr=18 psf and W=38 psf (upwards) or 16 psf (downwards). If the beams are spaced 6 ft 0 in apart, determine the factored uniformly distributed loads per foot (upward and downward, if appropriate) by which each beam should be designed.

15 A floor slab 100 mm thick is cast monolithically with beams 250 mm wide 450 mm deep spaced 1.2 m on centers, on simple supports over a span of 5.0 m. The floor supports a service live load of 2.1 kPa. Using fe = 21 MPa, rebar strength fy = 415 MPa, calculate the following if a typical interior beam is reinforced with 3- 16-mm-dia. flexure bars at the bottom enclosed with 10-mm-dia. stirrups: Nominal moment capacity (kN-m) of a typical interior beam in positive bending considering T-beam geometry. A. 96.66 1. В. 86.99 C. 91.10 D. 81.99 2. Maximum factored uniformly distributed load (kN/m) a typical interior beam can sustain against positive bending. A. 30.93 В. 27.83 C. 26.23 D. 29.15 Maximum service superimposed dead load in kPa. A. 17.73 3. В. 11.08 С. 16.52 D. 14.77

A structural steel beam supports a roof that weighs 25 psf. An analysis of the loads has the following: S = 12 psf, Lr = 18 psf and W = 24 psf (upwards) or 16 psf (downwards). If the beams are spaced 6 ft 0 in apart, determine the factored uniformly distributed loads per foot (upward and downward, if appropriate) by which each beam should be designed.

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The concrete girders shown in the photo of the passenger car parking garage span 30 ft and are 15 ft on center. If the floor slab is 5 in. thick and made of reinforced stone concrete, and the specified live load is 50lb/ft2 , determine the distributed load the floor system transmits to each interior girder.

A simply supported timber beam 20 cm wide and 40 cm deep carries a point load W at the middle point. The permissible stresses in flexure (bending) and shear is 100 N/cm2 and 150 N/cm2 respectively. Calculate the span length below which the shear stress will govern the safe load and above which the bending stress will govern the safe load.

What is the value of the long term deflection for the double reinforced beam having a base of 250 mm, d of 400 mm, As = 3000 mm^2, As' = 1000 mm^2. If the computed value of deflection deadload = 5.50 mm, %3D deflection live load = 10.00 mm, deflection sustained live load = 7.00 mm. The long term deflection to be considered is 8 years. 24.286 mm 30.000 mm 26.667 mm None of the Choices 21.111 mm 22.500 mm

Structural steel buildings frequently are designed with diagonal bracing systemsto resist lateral loads (horizontal forces resulting from wind or earthquakeloadings).A certain bracing system is subjected to the following loads:dead load = 13.5 kipsoccupancy live load = 6.8 kipsroof live load = 1.4 kipssnow load = 1.4 kipswind load = 150.5 kipsearthquake load = 161.2 kipsa. Determine the required factored load capacity for LRFD. Which AISC loadcombination controls?b. Determine the required ASD load capacity. Which AISC load combinationcontrols?Note: All given loads are service loads.

What is the value of the long term deflection for the double reinforced beam having a base of 250 mm, d of 400 mm, As = 3000 mm^2, As' = 1000 mm^2. If the computed value of deflection deadload = 5.50 mm, deflection live load = 10.00 mm, deflection sustained live load = 7.00 mm. The long term deflection to be considered is 8 years.