to A Reaction Force at Joint A? B 70° 45° D 20 lbs 12.00- 36.62⁰ F 30 lbs H -3.02- [Fx = 0 [Fy=0 EM=0
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- a=3 CVE 349 HOMEWORK 1 b=2.5 Q.1. d=3 P=12 27 9. a *Analyze the structure under given loading. *Design members 14,12,42,45,43,23,53 *Design joints 1,2,3,4 and 5. * Use parameters that are assigned to you. Those who use different parameters will be penalized and get 0. Units of a,b and c are meters and P is kN.50 KN A 250 KN 100 KN B с Reaction of AH (RAH)= Reaction of Av (RAV)= Reaction of H (RH)= Force at CE (FCE)= 200 kN E 4 panels @ 6 m each Problem 2: Each member has an area of 1150 mm2 Solve for the TRUSS REACTIONS of Problem 2 and FORCE of member CE. KN KN kN kN 100 KN F G 50 KN H 250 KN 6 m • Do not include UNITS and answer in 3 DECIMAL DIGITS (ex. 0.000, 12.000, 130.123, 4.125, 0.500 ) • Do not include nature of forces (if C or T, or +/-)A rigid weightless be am SUPPorted at the point D by the pixed goint loo ded by the momend M is Support and points B and c holding the beam horisonta lly . a + the ver tical bs connected are For the data listed below determne ! Data > E = 2.1x10$ MPa gie ld stres 6y: 250 MPa , foctor oc Sofety Sr-1.S * Necessoy are a wetion A ? Of Cross - Other Data ; I 5 cM , a : U cm Ma SONM Safety · design method ond limit-state- mordatory. * Use both, Factorr design netled. Both net hats A.E 2A a
- touch &O O166% 00:27 MENG250 - Practice Assign... Problem 2-15 Determine the design angle ø (0° < ø< 90°) between struts AB and AC so that the 400-lb horizontal force has a component of 500 lb directed from A towards C. What is the component of force acting along member AB? Take 0 = 40°. 400 lb A te BDiscussion) (2-7) 1- discuss the different between Gexp & Gu if occure, ノand reach to Grap how you can make the value of th. 2- why i- Nactive + Ntokal for tension and Compression spnings 3. where we used the helical springsCS CamScanner ile tarandı M=500 kg Find the fpres in each 'member? (Draw free booly liograns)
- The following data is refers to a screw jack. The vertical load on the screw320kN Force applied at the lever end whose length=80cm The mean radius of the screw=2.5cm Pitch of the screw=1cm Co-efficient of friction between the screw thread and the nut=0.15 Determine the force on the lever end while raising the load and efficiency of the screw jack***PLEASE SAY IF THEY ARE COMPRESSION OR TENSION AS WELL. Previous forces found are Fcb = 700lbs(C), Fcd = 606lbs(T) Fdb = 630 lbs (T) Fde = 606 lbs (C).7 ft I 3 Yo 66 k 4f+ 2ft 3ff Find force for all member? (Q₁) доки B 60⁰° 20 lookN U 50 g 80° C 6 3% 200KN E
- II Re The Howe truss is subjected to the loading shown in (Figure 1). Suppose that F = 4.5 kN Part A Determine the force in member GF and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative valu the case of compression and positive value in the case of tension. HẢ FGF = Value Units ubmit Request Answer Submit Figure Part B <) 1 of 1 Determine the force in member CD and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. 3 m H 2 kN 2 kN FCD = Value Units |B IC ID Submit Request Answer -2 m- -2 m -2 m -2 m-three (3) different cylinder mude from Steel, Aliminurn and Uronze are jointed Logether to torma composite structure and fixed to vall suport. Three (3) axial forces acted on the structure as shown. The fallowing valuc was alroady cietermined: 1 KN to the nght -3kN Tensioa -2 kN compression Reaction al A Internal force for Aluminum Interral force for Brone Este= 200 GPa; Ealumin 70 GPa Egmee 83 GPa Determine Ue eiongalion (A) for ach section: Steel Aluminum Bronve Aluminum A= 400 mm Bronze A-200 mm Steel A S00 m 2P 4P SP 2.5 m 2.0 m 1.5 mWhich following ones are true? Calculate tension forces in the cables in the given figure. Weight of the crate is 20 N. -1.5i +1.5 j+3k V13.5 I:Foc = FDC 3 m 4.5 m 3,m 3i –1.5 j+3k F, V20.25 A II : F, 1.5 m 3 m DA DA D 1.5 m- III :FpB =-FDBj IV :W =-20k V:Fc+F +F +W =0 DC DA DB O A) Il and III are true but others are wrong O B) all of them are true C) none of them are true O D) II, IV, V are true but others are wrong O E) I and II are true but others are wrong