The flange and web plates of the doubly symmetric built-up section are connected bycontinuous 10 mm thick fillet welds as shown in the figure (not drawn to the scale). Themoment of inertia of the section about its principal axis X-X is 7.73 x 106 mm4. Thepermissible shear stress in the fillet welds is 100 N/mm?. The design shear strengthof the section is governed by the capacity of the fillet welds.100 mm10 mmFillet weld (typical)The maximum shear force (in kN, round off to one decimal place) that can be carriedby the section, is120mm10 mm

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Answered: The flange and web plates of the doubly…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The flange and web plates of the doubly symmetric built-up section are connected by continuous 10 mm thick fillet welds as shown in the figure (not drawn to the scale). The moment of inertia of the section about its principal axis X--X is 7.73 x 106 mm4. The permissible shear stress in the fillet welds is 100 N/mm2. The design shear strength of the section is governed by the capacity of the fillet welds. 100 mm Tro mm X---- ----X 10 mm Fillet weld (typical) The maximum shear force (in kN, round of to one decimal place) that can be carried by the section, is 120 mm
b. The gusset plate shown in Figure 10 is welded to a vertical member. The gusset plate carries a load of 250 kN acting at a distance of 250 mm from the closest edge of the weld. The weld around the gusset plate is completed in two 140 mm horizontal portions and one 320 mm vertical portion. If the maximum allowable shear stress of the weld is 200 N/mm², detemine the minimum thickness of the weld required. In calculations, the second and higher order terms of the weld thickness for second moment of area calculations may be neglected. 250 kN 140 mm 250mm 140 mm Figure 10 320 mm
The following steel member is connected to the gusset plate via two longitudinal welds. The width of the member is 58 mm and the length of the weld is 87 mm. The yield stress is 300 MPa and the ultimate stress is 675 MPa. The gross area of the member is 700 mm^2 . a. What is the tensile design yield strength in KN? b. What is the tensile design rupture strength in KN? c. If a tensile load of 85 KN is requiredfor the member, what is the minimum factor of safety for the steel member?
The cylindrical portion of the compressed air tank shown is fabricated of 0.25-in.-thick plate welded along a helix forming an angle β= 30° with the horizontal. Knowing that the allowable stress normal to the weld is 10.5 ksi, determine the largest gage pressure that can be used in the tank
A plate with width of 300mm and thickness of 20mm is to be connected between two plates 12mm thick with same width by 4-25mm diameter rivets a shown. The rivet holes have a diameter 2mm larger than the rivet diameter. The plate is A36 steel with yield strength Fy=248 Mpa and Fu-400MPa. The rivets have nominal shear stress capacity of 165MPa. O 803 O 1490 • Determine maximum load (P1) that can be applied without exceeding design tensile stress in plates (consider yielding and rupture of plates ONLY) in KN O 1180 O 1340 ο ο ο ο ο P3 O 1968 O 590 O 670 O 893 O 707 OO 150 O 1180 P1 P2
The steel shafts are connected together using a fillet weld as shown in the figure below. (Figure 1) Figure ▾ art A Tavg for Part A for Part 12 mm Value T= 60 N-m 50 mm- Determine the average shear stress in the weld along section a-a if the torque applied to the shafts is T = 63 N-m. Note: The critical section where the weld fails is along section a-s. Express your answer to three significant figures and include the appropriate units. Units 12 mm 1 12 mm 12 mm a do for Part 1 of 1 redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A
The steel shafts are connected together using a fillet weld as shown in the figure below. (Figure 1) Figure Part A 12 mm Tavg 1.229 -50 mm на фра рабо T=60 N·m MPa Determine the average shear stress in the weld along section a-a if the torque applied to the shafts is T = 63 N. m. Note: The critical section where the weld fails is along section a-a. Express your answer to three significant figures and include the appropriate units. Submit Previous Answers Request Answer 12 mm ? 12 mm a 12 mm * Incorrect; Try Again; 24 attempts remaining 1 of 1
A rectangular plate of dimensions 100 mm x 250 mm is formed by welding two triangular plates (see the figure). The plate is subjected to a compressive stress of 2.5 MPa in the long direction and a tensile stress of 12.0 MPa in the short direction. 12.0 MPa Weld 250 mm- 100 mm 2.5 MPa (a) Determine the normal stress o, acting perpendicular to the line of the weld. (Assume that the normal stress a, is positive when it acts in tension against the weld.) Round to one decimal place. MPa (b) Determine the shear stress T acting parallel to the weld. (Assume that the shear stress T, is positive when it acts counterclockwise against the weld.) Round to one decimal place. T = MPa
4.) A 150 x 90 x 12 angular section is welded to a gusset plate as shown in the figure. The angle is A36 steel with FY=248 MPa. The weld is E 80 electrode with Fu = 550 MPa. The allowable tensile stress for the angle is 0.6Fy and the allowable shear stress for the weld is 0.3Fu. The Area of the angular section is 2751 sq.mm. with y=51mm. CS 56 Which of the following most nearly gives the design force P? a.) 400,365.9 N b.) 409,348.8 N c.) 412,793.5 N d.) 420,366.6 N 5.) A W350 x 90 steel is used as a simply supported beam 8m long. The beam carries three equal concentrated loads at every quarter points. It also carries a uniform dead load o 5 kn/m (including its own weight) and a uniform live load of 7.20 kn/m. Properties of W 350 x 90 steel: bf = 250 mm The allowable bending stress is 0.66Fy. The allowable shear stress is 0.40Fy. The allowable deflection is L/360. Use Fx=248 Mpa and E=200 Gpa. tf = 16.40 mm V d = 350 mm Determine the maximum value of each concentrated load based on…
The gusset is riveted to a larger plate by 4 – 22mm rivets in single shear arranged andloaded as shown. Calculate the stress in the most heavily loaded rivet.
A channel-section has the dimensions as shown. 3) Consider a cantilevered beam subjected to an end force P. Cr (a) if cross L = 100 cm ction in is used determine its normal stress 2 2ºM 8⁰m 2cm
The pressure tank is fabricated from spirally wrapped metal plates that are welded at the seams in the orientation shown. The tank has an inside diameter of 700 mm and a wall thickness of 9.5 mm. For a gage pressure of 0.83 MPa, determine (a) the normal stress perpendicular to the weld (use positive for tension, negative for compression) and (b) the shear stress (absolute value) parallel to the weld. Assume β=32∘

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