Bài tập SBVL1 CSU - Chương 2 (2.6 đến 2.10)

• Đăng bởi: lethithanhbinh
• Sinh viên
• 18/09/2017

2.6. The steel frame (E = 200 GPa) shown has a diagonal brace BD with an area of 1920 mm². Determine the largest allowable load P if the change in length of member BD is not to exceed 1.6 mm.

2.7 For the steel truss (E = 200 GPa) and loading shown, determine the deformations of members AB and AD, knowing that their cross-sectional areas are 2400 mm² and 1800 mm², respectively.

2.8 For the steel truss (E = 29 x 10⁶ psi) and loading shown, determine the deformations of members BD and DE, knowing that their cross-sectional areas are 2 in² and 3 in², respectively.

2.9 Each of the links AB and CD is made of aluminum (E = 10.9 x 10⁶ psi) and has a cross-sectional area of 0.2 in². Knowing that they support the rigid member BC, determine the deflection of point E.

2.10 The length of the 3/32-in.-diameter steel wire CD has been adjusted so that with no load applied, a gap of 1/16 in. exists between the end B of the rigid beam ACB and a contact point E. Knowing that E =29 x 10⁶ psi, determine where a 50-lb block should be placed on the beam in order to cause contact between B and E.