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5. Three planks are connected by ?,?-26-- 12 mm D bolts as shown in Figure 5....
Three wooden planks are fastened together by a series of bolts to form a column. The...
Three wooden planks are fastened together by a series of bolts to form a column. The diameter of each bolt is 12-mm and the inner diameter of each washer is 16-mm, which is slightly larger than the diameter of the holes in the planks. Determine the smallest allowable outer diameter d of the washers, knowing that the average normal stress in the bolts is 32 MPa and that the bearing stress between the washers and the planks must not exceed...
Q.6) Seven wood planks are used to construct a built-up beam shown below. The beam is subjected t...
Q.6) Seven wood planks are used to construct a built-up beam shown below. The beam is subjected to a vertical force of 12 kN, and has an Iz 1.5 x 109 mm The allowable shear force for nails at A and B is 250 N. Determine the maximum spacing for horizontal nails at A and vertical nails at B. 50 300 50 A 100 50 400 50 200 Dimensions in mm
Q.6) Seven wood planks are used to construct a...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second moment of areal = 59.9 x 10 mm' that is strengthened by attaching a plate of 10 mm thickness and 100 mm breadth at the top as shown in Figure 2. Pairs of 12 mm diameter steel bolts are used at regular 200 mm spacing along the beam to connect the plate to the I beam in an arrangement as shown in Figure 3....
Required information A composite beam is made by attaching the timber and steel portions shown with...
Required information A composite beam is made by attaching the timber and steel portions shown with bolts of 12-mm diameter spaced longitudinally every 200 mm. The modulus of elasticity is 10 GPa for the wood and 200 GPa for the steel. The vertical shear is 4.2 KN - 150 mm 12 mm 12 mm Determine the shearing stress at the center of the cross section (Round the final answers to two decimal places.) (Hint: Both Q and are computed by...
ein (2) Three identical bolts are used in the connection shown and the thickness of the...
ein (2) Three identical bolts are used in the connection shown and the thickness of the center plate is t = 18 mm. The ultimate shear stress in the bolts is 320 MPa and the ultimate bearing stress in the plate is 350 MPa. Determine the minimum bolt diameter required to support an applied load of P= 180 kN for a factor of safety of 2.5. Ans: 23.8 mm Р
Two wooden planks, each 22 mm thick and 160 mm wide, are joined by the glued...
Two wooden planks, each 22 mm thick and 160 mm wide, are joined by the glued mortise joint shown. If the joint fails when the average shear stress in the glue reaches r = 820 kPa, determine the allowable length d of the cuts if the joint is to withstand an axial load of P = 7 kN.
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure...
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure 3a), knowing that uniformly distributed load w=60 kN/m, Young modulus E = 200 GPa, and yield stress Cyield=200 MPa (in both tension and compression). ул 15 mm w=60 kN/m ... 1 B A 15 mm + 300 mm IC - i 2.5m 1 1 15 mm 7.5m 1 150 mm Figure 3a (a) Check if: the beam is safe with respect to yielding (using...
Chapter 4, Reserve Problem 018 Three bolts are used in the connection shown in the figure....
Chapter 4, Reserve Problem 018 Three bolts are used in the connection shown in the figure. The thickness of plate (1) is 20 mm. The ultimate shear strength of the bolts is 385 MPa, and the ultimate bearing strength of plate (1) is 385 MPa. Determine the minimum bolt diameter required to support an applied load of P = 180 KN if a minimum factor of safety of 2.5 is required with respect to both bolt shear and plate bearing...
4. Figure 4 shows a beam with three supports at A, B and D. The beam...
4. Figure 4 shows a beam with three supports at A, B and D. The
beam also has a pin connection at C. Draw the shear force diagram
and bending moment diagram of the beam. Calculate the maximum
bending stress and maximum shear stress of the beam.
200 mm 5 kN 3 kN/m 30 mm - 25 mm N IITIT 250 mm 3m — 3 m +1.5 m +1.5 m1 30 mm 100 mm Cross-section of beam Figure 4
shown in Figure 2. Two circular disks A and B are welded to the ends of both bars. The disks lie in planes disks A a...
shown in Figure 2. Two circular disks A and B are welded to the ends of both bars. The disks lie in planes disks A and B subjecting the bars to torsion. If the allowable maximum shear stress is 35 MPa and the allowable rate of twist is 3°/m for both bars, determine the smallest outer diameter (D, and Di) of both bars. The shear modulus of elasticity is 39 GPa to the axes of the bars. Forces 15 kN...
Three wooden planks are fastened together by a series of bolts to form a column. The diameter of each bolt is 12-mm and the inner diameter of each washer is 16-mm, which is slightly larger than the diameter of the holes in the planks. Determine the smallest allowable outer diameter d of the washers, knowing that the average normal stress in the bolts is 32 MPa and that the bearing stress between the washers and the planks must not exceed...
Q.6) Seven wood planks are used to construct a built-up beam shown below. The beam is subjected to a vertical force of 12 kN, and has an Iz 1.5 x 109 mm The allowable shear force for nails at A and B is 250 N. Determine the maximum spacing for horizontal nails at A and vertical nails at B. 50 300 50 A 100 50 400 50 200 Dimensions in mm
Q.6) Seven wood planks are used to construct a...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second moment of areal = 59.9 x 10 mm' that is strengthened by attaching a plate of 10 mm thickness and 100 mm breadth at the top as shown in Figure 2. Pairs of 12 mm diameter steel bolts are used at regular 200 mm spacing along the beam to connect the plate to the I beam in an arrangement as shown in Figure 3....
Required information A composite beam is made by attaching the timber and steel portions shown with bolts of 12-mm diameter spaced longitudinally every 200 mm. The modulus of elasticity is 10 GPa for the wood and 200 GPa for the steel. The vertical shear is 4.2 KN - 150 mm 12 mm 12 mm Determine the shearing stress at the center of the cross section (Round the final answers to two decimal places.) (Hint: Both Q and are computed by...
ein (2) Three identical bolts are used in the connection shown and the thickness of the center plate is t = 18 mm. The ultimate shear stress in the bolts is 320 MPa and the ultimate bearing stress in the plate is 350 MPa. Determine the minimum bolt diameter required to support an applied load of P= 180 kN for a factor of safety of 2.5. Ans: 23.8 mm Р
Two wooden planks, each 22 mm thick and 160 mm wide, are joined by the glued mortise joint shown. If the joint fails when the average shear stress in the glue reaches r = 820 kPa, determine the allowable length d of the cuts if the joint is to withstand an axial load of P = 7 kN.
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure 3a), knowing that uniformly distributed load w=60 kN/m, Young modulus E = 200 GPa, and yield stress Cyield=200 MPa (in both tension and compression). ул 15 mm w=60 kN/m ... 1 B A 15 mm + 300 mm IC - i 2.5m 1 1 15 mm 7.5m 1 150 mm Figure 3a (a) Check if: the beam is safe with respect to yielding (using...
Chapter 4, Reserve Problem 018 Three bolts are used in the connection shown in the figure. The thickness of plate (1) is 20 mm. The ultimate shear strength of the bolts is 385 MPa, and the ultimate bearing strength of plate (1) is 385 MPa. Determine the minimum bolt diameter required to support an applied load of P = 180 KN if a minimum factor of safety of 2.5 is required with respect to both bolt shear and plate bearing...
4. Figure 4 shows a beam with three supports at A, B and D. The
beam also has a pin connection at C. Draw the shear force diagram
and bending moment diagram of the beam. Calculate the maximum
bending stress and maximum shear stress of the beam.
200 mm 5 kN 3 kN/m 30 mm - 25 mm N IITIT 250 mm 3m — 3 m +1.5 m +1.5 m1 30 mm 100 mm Cross-section of beam Figure 4
shown in Figure 2. Two circular disks A and B are welded to the ends of both bars. The disks lie in planes disks A and B subjecting the bars to torsion. If the allowable maximum shear stress is 35 MPa and the allowable rate of twist is 3°/m for both bars, determine the smallest outer diameter (D, and Di) of both bars. The shear modulus of elasticity is 39 GPa to the axes of the bars. Forces 15 kN...
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