Stress Analysis and Design of Elementary Structures |
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acting applied assumed axle bars base bending moment bending moments bending-moment bolt centroid chord column compression compression members compressive stress computed concentrated loads construction contraflexure couple cover plates dead load deflection determined diagram diameter dimensions distance distributed load Douglas Fir elastic equal Equation equilibrium polygon extreme fiber flange angles foot force polygon force system formula ft-kips Grade grain hinged horizontal inertia influence line joint loads Joists kips L₁ lb per sq length live load located lumber magnitude material modulus of elasticity moment of inertia neutral axis panel parallel plane plate girder pounds per square pressure produce maximum purlins R₁ ratio reaction Reinforced Concrete resistance resultant rivet Roof Truss safe load shear stress shown in Fig simply supported slab spacing span Specifications statical statically indeterminate stiffeners strength surface tensile stress thickness timber tion total load Typical U₁ uniform load W₁ wall weight width