The compound beam is fixed at A and supported by a rocker At B and C. There are hinges (pins) at D and E. Determine the reactions at the supports. 6 m 15 kN 2m 2 m 2 m 6 m
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- PI3-2. The internal loadings act on the section. Show the stress that cach of these loads produce on differential elements located at point A and point B. м Prob. P13-2II A. USE THE PORTAL METHOD AND DETERMINE (APPROXI MAITE) THE REACTIONS @SUPPORTS A, B, C ANDO. B. USE THE CANTILEVER METHOD AND DETERMINE A,B,C AND D. ALL COLUMNS HAVE THE J 1 2 FF F 5m OVEN I IZKUE Im THE REACTIONS SAME CROSS-SECTIONAL AREA. 5m H 4m 4m D 70707 .: De=R-U De-12-329 Di 3n 3(3)-9 · D. De tD D' 9+9=18 AT SUPPORTS*2-16. Classify each of the structures as statically determinate, statically indeterminate, or unstable. If indeterminate, specify the degree of indeterminacy. The supports or connections are to be assumed as stated. roller pin fixed 8 bns Aanogque od tneno (a) A roller В Гoller rollerC (b) ol d no no A D pin roller B rollerC pin (c) Prob. 2-16
- Problem 7: The bar AB is supported by two smooth collars. At A the connection is with a ball- and-socket joint and at B it is a rigid attachment. If a 50 – lb load is applied to the bar, determine the x, y, z components of reaction at A and B. ,у, B 6 ft 6 ft 4 ft 50 Ib 5 ft 3 ft-5 @ 3m-15m- C F H J K ML boo I A 4@4m=16m B D G E 60 kips A For the truss shown, what is the force in member FG? B what is the force in member BE? + --DThe bar AB is supported by two smooth collars. At A the connection is with a ball-and-socket joint and at B it is a rigid attachment. If a 50-lb load is applied to the bar, determine the x, y, z components of reaction at A and B.
- Dr. A H.W.5: A rigid bar ABCD is supported by two bars, as shown in Fig- ure 3 .There is no strain in the vertical bars before load Pis applied. After load P is applied, the normal strain in rod (1) is -570 pm/m. Determine (b) the normal strain in rod (2) if there is a l-mm gap in the connection at pin C before the load is applied. (c) the normal strain in rod (2) if there is a l-mm gap in the connection at pin B before the load is applied. (a) the normal strain in rod (2). (2) 1,500 mm 360 mm 140 mm 240 mm Rigid bar bber C B 900 mm (1)The rigid bar AB is pinned at A and supported by two aluminum rods CG and DH, each having a diameter of 25mm and elastic modulus of EAI = 70 GPa. Determine a) The force in each rod when the 20 kN load is applied. b) The axial deformation (elongation) of rod CG c) The axial deformation (elongation) of rod DH H. 1-0 0-5 A 0-6' 1.2M L 0-8 20KNMECH 1 ASSIGNMENT - 2M 20 k G y 10k E Problem A truss is subjected to the following forces as shown. Determine: (a.) The magnitude of the resultant of the external forces, R (kips). *Kip (k)-a unit of force, equivalent to 1000 lbs. (Av. AH. Bv) 1 [10] 15 25 25 10 ft ft ft ft ft In short, solve for the reactions at the supports using the equilibrium equations EFv, ΣFH, ΣΜ (AH, Av, Bv) C 20 k 20 k F 10 k 15 ft 15 ft 10 ft 25 ft B' X
- THE DIAGONAL MEMBERS IN THE CENTER PANELS OF THE TRUSS SHOWN ARE VERY SLENDER AND CAN ACT ONLY IN TENSION; SUCH MEMBERS ARE KNOWN AS COUNTERS. DETERMINE THE FORCE IN MEMBER DE AND IN THE COUNTERS THAT ARE ACTING UNDER THE GIVEN LOADING. (15 PTS) Counters ARA B F 6 ft H C E G 3 kips 6 kips 9 kips -S ft- <8 ft- S ft→|<-S ft-kindly ans the ff. Support reaction at G Force member in BC Force member in CF Force member in EFDetermine the reactions at the supports and the forces in the members of the truss shown with the principle of least work. Use A-400) mm², E-200 GPa for all members