Question

uSE THE SUM OF MOMENTS METHOD TO DETERMINE ALL OF THE REACTIONS AT POINTS A B 10. 12 POINTS) P 2300 LBS Problem THIS 1IS AN OVERHANG AT THE ENTRY TO A RIDE AT DISNEY WORLD. A DIMENSIONAL SIGN SITS ON TOP OF THE LEADING EDGE OF THE STRUCTURE. IT HAS A RIGID BRACKET WHICH ANGLES BACK TO THE WALL FOR SUPPORT. A (PIN) IDENTIFY THE TWO-FORCE MEMBERS THEN SOLVE FOR ALL REACTIONS AT POINTS A AND B (PIN) EXTRA CREDIT (5 POINTS) CALCULATE THE INTERNAL STRESS OF MEMBER AC AND MEMBER BC AND INDICATE WHETHER EACH MEMBER 1S IN COMPRESSION OR TENSION ら FT

Answer 1

2300LB ip VA He B Ve 13ft Reaction fores let tus consider H and Hea horizontally A and B at as reaction forces at A and B VA nd Ve And verticaly Now 230D O HA + H MB-D 2300x 13 Now Hax 12 13x 7300 2491.67 lbs 12 -HA 2 91-67 Lb oint At 2300 cR COSS -2300 2300 CE 33 90-79Lhs Scanned with CamScanner

At Joint B FEE Sino- HB fCe 3 390.89 x cos(47 2 2 300 0b V BtUA 2300 VA=O Cs Scanned wwtw-- CamScanner