Problem 867 | Deflection by Three-Moment Equation Problem 867 For the beam in Figure P-867, compute the value of P that will cause a zero deflection under P. Solution 867 Click here to expand or collapse this section MA=MC=0 MB=−4P yx=48 y=12x MALAB+2MB(LAB+LBC)+MCLBC+(6AˉaL)AB+(6AˉbL)CB=0 0+2(−4P)(10+4)+0+∑PaL(L2−a2)+0=0 −112P+∫x2x1(ydx)x10(102−x2)=0 −112P+110∫80(x2)x(100−x2)dx=0 −112P+120∫80x2(100−x2)dx=0 −112P+3942475=0 P=4.693 kN answer Tags Triangular Load overhanging beam Zero Deflection deflection by three-moment equation three-moment equation Log in or register to post comments Book traversal links for Problem 867 | Deflection by Three-Moment Equation Problem 866 | Deflection by Three-Moment Equation Up Problem 868 | Deflection by Three-Moment Equation