b)- Calculate the base pressure at the points indicated below the mat foundation shown. Total vertical load acting on the foundation is 26000 kN and it's location as shown in the figure. 10 Y F 5,75 26000 G. H. N.
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- Figure Q1(a) shows a 3.5 m height of 150 mm x 250 mm column, is supporting à vertical load at the top of the column. The column is rigidly supported by the foundation and rigidly connected with the beams. Given that Young's modulus, E = 15,500 N/mm2 and yield capacity, Oyield QI. 20 MPa. 300 mm 250 mm 3.5 m Foundation Isometric view of column Figure Q1(a) (a) (i) Calculate the effective length of column for x-x and y-y axes, respectively. (ii) Determine the critical load of column for x-x and y-y axes, respectively.10 KN 20 KN / m 5 KN / m A B SIMPLE STRESSES 5 KN / m D 50 KN-m 5 KN / m F 2. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x (in meters) 600 mm wooden column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point C? 0.50 m10 KN 20 KN / m 5 KN / m SIMPLE STRESSES 5 KN / m 50 KN-m 5 KN / m E 3. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x 600 mm wooden (in meters) column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point D? 0.50 m
- A short rectangular post supports a compressive load of P = 210 kN as shown. A top view of the post showing the location where load P is applied to the top of the post is also shown. Determine the vertical normal stress at corner d of the post. -9.14 MPa -15.12 MPa -11.20 MPa -12.06 MPa -14.02 MPaFigure Q2(b) shows the isometric view and cross-sectional of a column. A 500 kN of load is acting 20 mm away from x-axis. The column is fixed at the foundation, but pin-connected with the beams. Assume the Young's modulus, E = 27.5 GPa, Gyield =200 MPa. Use safety factor of 1.5 against buckling and safety factor of 1.25 against yielding. 500 kN 300 mm 300 mm 2.5 m 200 Foundation 3.5 m 20 mm 300 х- Load point, 500 kN Isometric view of column Cross-sectional of column Figure Q2(b) Calculate the effective height for each axis of the column.10 KN 20 KN / m 5 KN / m A SIMPLE STRESSES 5 KN / m 50 KN-m 5 KN / m F 2. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x 600 mm wooden (in meters) column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point C? 0.50 m
- Problem 2 A piece of engineering equipment is supported by the foundation shown. The diameter of the circular pin is 20 mm. 50 1250 100 SO 12 a.) Determine the value of P so as not to exceed the allowable bearing stress of 310.5 Mpa in the circular pin. b.) Determine the value of P so as not to exceed the allowable shearing stress of 138 Mpa in the circular pin.10 KN 20 KN / m 5 KN / m A SIMPLE STRESSES 5 KN / m D 50 KN-m 5 KN / m F E 3. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x 600 mm wooden (in meters) column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point D? 0.50 mThe beam shown has a rectangular cross section with a depth h = 240 mm. Determine the width b of the section if the material has ultimate normal stress of 100 MPa and the safety factor is F.S 1.8. 60 kN/m 70 kN-m 2 m 2 m A B C
- 10 KN 20 KN / m 5 KN / m SIMPLE STRESSES A B 5 KN / m D 50 KN-m 5 KN / m E F 3. Point C of the beam 1.00 1.00 1.00 1.00 2.00 1,00 (in meters) system shown in the figure is 500mm x 700 mm wooden column. What is 3.00 m 30° maximum bearing stress along the grain of the wooden post? 0.50 m10 KN 20 KN / m 5 KN / m A B SIMPLE STRESSES 5 KN / m F 50 KN-m 5 KN / m E 2. Points C and D of the 1.00 1.00 1.00 1.00 2.00 1.00 beam system shown in the figure is 500mm x 600 mm wooden (in meters) column. What is 30° 3.00 m bearing stress along the grain of the wooden post in Point C? 0.50 mA vertical load Wis applied on a rigid plate supported on three vertical concrete pillars each 250 mm x 250 mm in cross-section. Initially the outer pillars are 1.75 m high while the middle pillar is 0.35 mm shorter. Find the safe load W, if the stress in concrete in outer pillar should not exceed 3.5 N/mm². Take E = 12500 N/mm². 1.75 m- WI 0.35 mm