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Concentrated Angular Displacement 4 Deflection Equation and Calculator
Reaction and deflection formulas for in-plane loading of elastic frame.
Concentrated Angular Displacement on the Horizontal Member Elastic Frame Deflection Left Vertical Member Guided Horizontally, Right End Pinned Equation and Calculator.
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Since ψA = 0 and HA = 0
MA = LPM / AMM = Moment (Couple) at Left Node A
δHA = AHM MA - LPH = Horizontal Deflection at Left Node A
Loading Terms LPH and LPM are given below.
Reaction loads and moments VA and VB, and HB can be evaluated from equilibrium equations after calculating HA and MA.
Δo = Displacement (in, mm),
θo = Angular Displacement (radians),
W = Load or Force (lbsf, N),
w = Unit Load or force per unit length (lbs/in2, N/mm2),
MA = Couple (moment) ( lbs-in, N-mm),
Mo = Couple (moment) ( lbs-in, N-mm),
θo = Externally created angular displacement (radians),
Δo, = Externally created concentrated lateral displacement (in, mm),
T1 - T2 = Uniform temperature rise (°F),
To = Average Temperature (deg °F),
γ = Temperature coefficient of expansion [ µinch/(in. °F), µmm/(mm. °F) ],
T1, T2 = Temperature on outside and inside respectively (degrees),
HA, HB = Horizontal end reaction moments at the left and right, respectively, and are positive clockwise (lbs, N),
I1, I2, and I3 = Respective area moments of inertia for bending in the plane of the frame for the three members (in4, mm4),
E1, E2, and E3 = Respective moduli of elasticity (lb/in2, Pa) Related: Modulus of Elasticity, Yield Strength;
γ1, γ2, and γ3 = Respective temperature coefficients of expansions unit strain per. degree ( in/in/°F, mm/mm/°C),
l1, l2, l3 = Member lengths respectively (in, mm),
Roark's Formulas for Stress and Strain, Seventh Edition
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