A W 10 x 30 is used as a beam to support a concrete floor system. The floor is to carry a total load of 4.2 kPa. The beam is simply supported over a span of 8.4 m. The properties of the section are as follows: Depth = 254 mm Thickness of web = 19.2 mm Moment of Inertia = 98 x 106 mm4 Section modulus = 530 x 103 mm3 Weight = 44.86 k9/m Assume the beam is laterally supported over its length and that the allowable stress in bending is 0.66 Fy and in shear on gross section is 0.4Fy . Use A36 steel with Fy = 250 MPa. Determine the center-to-center spacing of the beams without exceeding the allowable shear stress. Determine the center-to-center spacing of the beams without exceeding the allowable bending stress. Which will be the center-to-center spacing of the beams to consider?
A W 10 x 30 is used as a beam to support a concrete floor system. The floor is to carry a total load of 4.2 kPa. The beam is simply supported over a span of 8.4 m. The properties of the section are as follows: Depth = 254 mm Thickness of web = 19.2 mm Moment of Inertia = 98 x 106 mm4 Section modulus = 530 x 103 mm3 Weight = 44.86 k9/m Assume the beam is laterally supported over its length and that the allowable stress in bending is 0.66 Fy and in shear on gross section is 0.4Fy . Use A36 steel with Fy = 250 MPa. Determine the center-to-center spacing of the beams without exceeding the allowable shear stress. Determine the center-to-center spacing of the beams without exceeding the allowable bending stress. Which will be the center-to-center spacing of the beams to consider?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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- A W 10 x 30 is used as a beam to support a concrete floor system. The floor is to carry a total load of 4.2 kPa. The beam is simply supported over a span of 8.4 m. The properties of the section are as follows:
Depth = 254 mm
Thickness of web = 19.2 mm
Moment of Inertia = 98 x 106 mm4
Section modulus = 530 x 103 mm3
Weight = 44.86 k9/m
Assume the beam is laterally supported over its length and that the allowable stress in bending is 0.66 Fy and in shear on gross section is 0.4Fy . Use A36 steel with Fy = 250 MPa.
- Determine the center-to-center spacing of the beams without exceeding the allowable shear stress.
- Determine the center-to-center spacing of the beams without exceeding the allowable bending stress.
- Which will be the center-to-center spacing of the beams to consider?
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