Question

Use the force method to determine the force in each member of the truss. Take a 2 kN, b 2 kN, c 20 kN and EA = 20000 kN (for all the members). a F В D 2 m A E 3 m 3 m Please fill in your solutions here: a) FAB kN b) FAC kN c) FBC kN d) FBD= kN e) FCD kN kN FCE kN g) FCF kN h) FDE kN i) FDF kN j) FEF | |

Answer 1

Fovco Mathod Avalcis X 2citst co. Shel nd adurdaut Porce membas, then Ramaue Solve al h Forces in gien Struckure. -tho orcA memba and IkN and Naxt aSsemeel -tha kaha Redundaut Force Raual tO Fosce inmambarus. eading Sycte -than Find ryemove ia-this PAB PaS Rtc () Pamove Redudent- Force mernbas, Find all Forcas ( uith RaduvlantForco merl TkN nd kaR, KBC,-.REC than AF -+ AE than Actuol Fore in evos membaK PAB +X. Kag. SAB KN Noc. B Yadudeutmembea CF Ymava.d El 3m C. A Taking Moraut obot aox6+ 2RX3 RE XG a4-R 3KN.

At RA PAR. Pac 3Ku(Cormue:Sive PAc OKN At Joint B Vatialy ReSolve Pec cose +a - 3 PecX TanSion) PEC J3 Pec sine PeD 3 Pep 2o Pa kN CCompresin Veakialy ReSolva t Pep = 0 compressivn Pep IkN Veskiay At F okN Compreive) PEF

At E PED CoSe PEFa o PED JCpretsive) PED Sine PeE Pee kn (Tan Sian) PcE Stap-2 Remava the loadirg Sy Stam and apply a fair of unit dad at c and F .ikN C E A AB AC BDAnd BC. -thaae is no Forces in Cor this Case KN COSE (Tonsia) x Tian kcE txSin9 at keF = KED KKOE

All memba having Sanne Araa PkL PK Membas P C O C -3 AB BC C 3 Ac - 312 B D 813 2- - | CD CF 13/2 DE 2 312 CE 08 2 EF 20 13 3 FD EPKI - lo9t6.53.744 - 22.188 - -13.0S3 +aa 13 ,230 4,1538 , 21 12. SS 13.053 t2 s -1.0363- -.o37- No Ackual For ce Campre ive) FPAR PAB X. K- 3kN JTension) Bc PBcto = O

FeD 3ENCmpreive X-1,03a 1-o.s75 Camperi ve) FF 0 + -1X-l.a3^ l03KN(Tension) CoYnprassia FDE 1.037 - -l.8027t 1.03 2o. 76S 7 ISN .S-0.862) Eo t - P| o. 63NTansion) 3 20.57 N FEF -20+ ,X -L03I2 -20--0.575 2 - Cepmpresion Compression o.3 63 kN -o.8628