Question

Review The truss is supported by a pin at A and a roller at B. (Figure 1) Determine the support reaction at B. Express your answer to three significant figures and include the appropriate units. LE THẢ * * 0 Ea ? B, - Value Units Submit Request Answer Part C Determine the horizontal component of reaction at A. Express your answer to three significant figures and include the appropriate units. Figure 1 of 1 ? CHA Value O Units 10 KNI 4 = -X --2m + 4m 2 m 5kN2m Submit Request Answer K Part D Determine the vertical component of reaction at A. Express your answer to three significant figures and include the appropriate units.

Answer 1

Given Data lokh 5KN 45N --- -- IRE 3+ RAH RAY tet Reaction at sleppost A are RAW is vertical Reaction RAH is Horizontal Reaction! Reaction at suppost B is RB Now Considering equilibisium of Treess- EFx = 0 (Towards Right as positive) - –RAH + 5 Cos 45o =0 RAH = 5 = 3535 kr (Towards left) = » {fy = 0 (uswards as Positive) - RAY - 5sch 45° -10 + RB =0 RAVI RR = 13.535 kr. - equation - EMA=0 (Taking clockwise as positive) - 5x4 + 10x 660 45° +2] - RBL 6 Cos450+6] =0 20 + 62.426 - RBK 10.242 50 » RB = 821426 KN 10242 » TRB = 8.047) KN upwarda)

from equation - RAY & RB = 13535 KN Ray = 13.535-0.047 - Ray 5:480) kN (upwards) Hence, Support Reaction at B, TRB= 81 847 kr (ufwand) Support Reactions at A- Horizontal component- RAH = 31535) KN (Towards left) Vestical component RAY = 5.480 KN ( upward).

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