a. The beam of the cross section shown below has f'c = 3000 psi and f₁ = 60,000 psi.Neglect the tensile strain check and As,min check. Calculate Mr.b. Same cross section as part (a) but the steel is changed to four No. 10 bars.Calculate Mr. Calculate the percent increase in M, and As.c. Same cross section as part (a) but the depth d is increased to 28 in.Calculate Mr. Calculate the percent increase in M, and d.nd. Same cross section as part (a) but f'c is increased to 4000 psi. Calculate M.Calculate the percent increase in M, and f'c.ne. For the same cross section verify that the tension steel yields.SFor 4#9, A = 4.00 in.² and for 4#10, A = 5.08 in.²S16"4-#924"

Key Assumptions and Variables:fc′=3000psi (compressive strength of concrete)fy=60,000psi (yield…

Answered: a. The beam of the cross section shown…

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 screw clamp shown in the figure applies a P = 500 N pressing force to the wooden blocks between the jaws. In this case; a) Calculate the greatest tensile and compressive stresses occurring in the section a-a shown in the figure. b) Show the distribution of normal stresses across the section height. (draw) c) Since the clamp material has tensile strength (apull) safety = 50MPA and compression safe stress (opress) safety = 80MPA, what is the great compressive load (P) that can be applied without damaging the a-a section? %3D %3D (Please solve in detail and according to engineering rules.) Material mechanics Sectional view a-a - 20mm T. 183mm 40mm
Determine the stress developed in bronze and steel tube after the application of load P. Use Eg = 83 GPa and Es = 200 GPa. P = 50 KN Bronze Steel Tube A = 6361.73 mm? A = 1492.26 mm? E = 83 GPa E = 200 GPa L= 1.50 m L= 1.50 m 90 mm 100 mm
The steel pipe shown has an outside diameter of 175 mm, a wall thickness of 18 mm, an elastic modulus of E = 200 GPa, and a coefficient of thermal expansion of ? = 11.7 x 10-6/°C. Using a = 335 mm, b = 870 mm, and ?= 60°, calculate the normal strains at Hand K after a load of P= 45 kN has been applied and the temperature of the pipe has been increased by 35°C O 16 mm, an e load of P= 45 kN has been applied and the temperature of the pipe has been increased by Answers: EH = Ek= H K με με
The rigid bar is supported by a smooth pin and two rods as shown. Neglect the weight of the rigid bar. The assembly is initially stress-free. Determine the stress in each rod if the temperature increases by 25°C after a load W = 100 kN is applied. The steel rod has an area of 320 mm² with a = 11.7 um/ ( m°C ) and E = 200 GPa. For the bronze rod, it has an area of 1380 mm? with a = 18.9 µm/ ( m°C ) and E = 83 GPa. Bronze | 3 m Steel | 1.5 m 1.0 m - - 2.5 m +1.5 m→
A
The steel pipe shown has an outside diameter of 175 mm, a wall thickness of 18 mm, an elastic modulus of E = 200 GPa, and a coefficient of thermal expansion of ? = 11.7 x 10-6/°C. Using a = 335 mm, b = 870 mm, and ?= 60°, calculate the normal strains at Hand K after a load of P= 45 kN has been applied and the temperature of the pipe has been increased by 35°C O 16 mm, an e load of P= 45 kN has been applied and the temperature of the pipe has been increased by Answers: EH = Ek= H K με με
Determine the normal stress in the steel plate. Gusset plate is 16 mm thick column pin diameter = 20 mm gusset plate steel plate 70 kN pin 60mm 8-mm plate thickness 183.45 MP 0148.53 MPa 58.33 MP3 22282 MP A 14583MP
fast
4. A rigid block of having a weight M is suspended by symmetrically placed rods. Each copper rod has an area of 1200 sq.mm: E= 125,000 MPa and the allowable stress is 90 MPa. The steel rod has an area of 1500 sq.mm; E 220GPa; and the allowable stress is 120 Mpa. Determine the largest weight M which can be supported by the rods. 8c=8s Copper 160 mm Pc Ps Steel 240 mm TIT Pc ..initial level Tinal level Copper 160 mm
Determine (d) variable stress and (e) design factor
A small aluminum alloy [E = 73 GPa] teeshape is used as a simply supported beam as shown. For this beam, a = 150 mm. The cross- sectional dimensions of the teeshape are b = 25 mm, d= 38 mm, and t=7 mm. After loads are applied to the beam at B, C, and D, a compressive normal strain of 490cis measured from a strain gage located at c= 9 rmm below the topmost edge of the tee stem at section 1-1. What is the applied load P? 3P Strain gage d a a H Answer: P = i

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