Simplified Mechanics and Strength of MaterialsWiley, 1951 - 275 páginas |
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Página 8
... angle of 90 ° between their lines of action . Determine the resultant . 50 # 90 ° 112 # 40 # 115 # . 60 ° 100 # 90 ... angle between the resultant and the force of 100 # is approximately 2612 ° . EXAMPLE . The angle between two forces of ...
... angle of 90 ° between their lines of action . Determine the resultant . 50 # 90 ° 112 # 40 # 115 # . 60 ° 100 # 90 ... angle between the resultant and the force of 100 # is approximately 2612 ° . EXAMPLE . The angle between two forces of ...
Página 96
... angle about the X - X axis is I1 = Io + Ah2 I1 = 1.4 + ( 1.69 × 3.092 ) I1 = 17.5in1 Adding together the moments of inertia of the channel and angle with respect to the X - X axis of the built - up section gives 73.0 17.5 = 90.5in ...
... angle about the X - X axis is I1 = Io + Ah2 I1 = 1.4 + ( 1.69 × 3.092 ) I1 = 17.5in1 Adding together the moments of inertia of the channel and angle with respect to the X - X axis of the built - up section gives 73.0 17.5 = 90.5in ...
Página 100
... angles . For a 4 " x 3 " x 4 " angle with respect to a centroidal axis parallel to the short leg ( axis X - X in Table 12 ) we find Ix - x = 2.8in1 , A = 1.69in2 , and the distance of the centroid to the back of the short leg = 1.24 ...
... angles . For a 4 " x 3 " x 4 " angle with respect to a centroidal axis parallel to the short leg ( axis X - X in Table 12 ) we find Ix - x = 2.8in1 , A = 1.69in2 , and the distance of the centroid to the back of the short leg = 1.24 ...
Contenido
CHAPTER | 1 |
Elements of a Force | 9 |
Equilibrant | 15 |
Derechos de autor | |
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allowable axial load allowable load allowable unit stress angle bars center of moments centroid column compressive stresses compressive unit stress Compute the maximum concentrated load cross section cross-sectional area deflection deformation determine diameter distance double bearing elastic limit EXAMPLE EXAMPLE factor of safety fillet weld flexure formula force polygon free body diagram funicular polygon hence indicated in Fig inertia intersection length line of action linear foot magnitude material maximum bending maximum shear modulus of elasticity moment of inertia neutral surface parallel parallelogram of forces pier plate pounds per linear pounds per square pressure PROBLEMS R₁ radius of gyration reactions reinforced concrete resisting respect resultant rivet rods section modulus shaft shear diagram shearing stress shearing unit stress shown in Fig simple beam single bearing slenderness ratio SOLUTION span square inch stirrups Table tensile stresses thickness three forces truss uniformly distributed load weight width zero