Properties of W40 x 85 A = 10839 mm2 bf = 180 mm tf = 18 mm tw = 11 mm Ix = 310 x 106 mm4 d = 420 mm (Note: Since this is a built-up section, for checking of web slenderness, use h = d - 2tf) 1) Calculate the design shear strength of the section. Check if the section is adequate in shear. USE LRFD and U = 1.2D + 1.6L. 2) Is the maximum deflection at the midspan of the beam due to live load adequate? 3) Calculate the maximum uniform live load that can be carried by the beam.

Properties of W40 x 85 A = 10839 mm2 bf = 180 mm tf = 18 mm tw = 11 mm Ix = 310 x 106 mm4 d = 420 mm (Note: Since this is a built-up section, for checking of web slenderness, use h = d - 2tf) 1) Calculate the design shear strength of the section. Check if the section is adequate in shear. USE LRFD and U = 1.2D + 1.6L. 2) Is the maximum deflection at the midspan of the beam due to live load adequate? 3) Calculate the maximum uniform live load that can be carried by the beam.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.8.9P: Use the composite beam tables and select a W-shape and stud anchors for the following conditions: ...

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A W420x85 steel beam is fully restrained with a uniformly distributed live load of 25 kN/m. The beam has a span of 10m. Use A36 steel. Properties of W40 x 85 A = 10839 mm2 %D bf = 180 mm tf = 18 mm %3D tw = = 11 mm Ix = 310 x 106 mm4 %3D d = 420 mm (Note: Since this is a built-up section, for checking of web slenderness, use h = d - 2t;) %3D 1) Calculate the design shear strength of the section. Check if the section is adequate in shear. USE LRFD and U = 1.2D + 1.6L. %3D 2) Is the maximum deflection at the midspan of the beam due to live load adequate? 3) Calculate the maximum uniform live load that can be carried by the beam.
Determine the design strength of the beam shown. Assume fy-345MPa and fc'-21 MPa.
Situation 1: A W8x31 simply supported beam carries a uniformly distributed load. The properties of the section relevant to the problem are as follow: Use A50 steel and Cb - 1.14 d=203 mm bf = 203 mm tf-11.0 mm tw = 7.24 mm kdes - 21.1 mm ry = 51.3 mm Ix = 45.8 x 10^6 mm^4 ly- 15.4 x 10^6 mm^4 Sx-451 x 10^3 mm^3 Zx = 498 x 10^3 mm^3 J-223 x 10^3 mm^3 Cw-142 x 10^9 mm^6 1. Which of the following nearly gives the maximum safe uniform load (Wu) that the beam could carry if the span of the beam is 5m? Neglect weight of the beam. 46 KN/m 41 KN/m 51 KN/m 33 KN/m
A W24x76, A992 steel is to be used as simply supported beam to resist a concentrated load at midspan. The beam will be laterally braced at the supports and at midspan. Section Properties (W24x76): Ag = 14500 mm2 bf = 228 mm tf = 17.3 mm tw = 11.2 mm Sx = 2880 x 103 mm3 Zx = 3280 x 103 mm3 J=1120 x 103 mm4 k = 30 mm rx = 246 mm d = 607 mm Use strength-reduction factor, ø= 0.90 Assuming that the self-weight of the beam may be neglected, determine the flexural capacity (kN-m) of the beam for the following cases: a. Length of beam, L = 3 m. b. Length of beam, L = 10 m. c. Length of beam, L = 15 m.
A simply supported beam is subjected to a uniform service dead load of 1.0 kips/ft (including the weight of the beam) and uniform service live load of 2.5 kips/ft. The beam is 40 feet long, The beam has continuous lateral support, and A572 Grade 50 steel is used. A572 Grade 50 steel has Fy = 50 ksi and Fu = 65 ksi. Is a W30 × 116 adequate from flexure and shear?Check both LRFD and ASD. Is the beam adequate from deflection if it allowsmaximum deflection of L/360 (dead load + liveload)?
Q2) The members of the truss structure shown below is plain concrete. The compressive strength of the concrete is 25 MPa. Compute the maximum load P that can be carried by the structure. (Cross section of each member of the truss is 200 x 200 mm and don't use material factors and do not consider slenderness) Comment on your results briefly. P A& 2m SC 2 m 1380 2m D
Use Allowable Strength Design. Use A992 steel and select a W-shape for the following beam: • Simply supported with a span length of 40 feet • Laterally braced only at the ends • Service dead load = 0.4 kips/ft • Service live load = 1.2 kips/ft • The service dead load consists of a 10 kip concentrated load at the center of the span. • The service live load consists of a 30 kip concentrated load at the center of the span. There is no limit on the deflection.
Situation 3: A W12x22 simply supported beam carries a uniformly distributed load. The properties of the section relevant to the problem are as follow: Use A50 steel and Cb - 1.14 d=312 mm bf - 102 mm tf 10.8 mm tw = 6.60 mm kdes 18.4 mm ry-21.5 mm Ix- 64.5 x 10^6 mm^4 ly- 1.94 x 10^6 mm^4 Sx416 x 10^3 mm^3 Zx 480 x 10^3 mm^3 J-122 x 10^3 mm^3 Cw-44.0 x 10^9 mm^6 1. Which of the following nearly gives the Design Strength Moment (LRFD) if the span of the beam is 2.5m? 89 KN-m O 114 KN-m O 123 KN-m O 101 KN-m
A simply supported steel joist of 4 m effective span is laterally supported throughout. It carries a total UDL of 40 kN (inclusive of self weight). Design an appropriate section using steel of grade Fe410. The following two beam sections are available ISMB 150 @ 146 N/m ISMB 175 @ 191 N/m b₁ = tf = 8.6 mm t = 5.5 mm bf = 80 mm = 7.6 mm tf t = 4.8 mm 1₂=726.4 x 104 mmª = 96.9 x 103 mm³ 22 Z₂ R₁ Zp = 9 mm = 110.5 x 103 mm³ = 90 mm = 1272 × 104 mm² Izz Z = 145.4 x 10³ mm³ = 10 mm R₁ Z₁ = 166.1 x 10³ mm³
Height h=584.6 mm Flange thickness t = 11.4 mm Flange width b = 213.2 mm T What is the shear resistance of a universal beam (UB) with the following dimensions [EC3 Section 6.2 Resistance of cross sections]: Cross sectional area A = 105 cm² Web thickness tw = 7.8 mm C y-.-.-.-.-.-y Root radius r = 12.7 mm Yield strength fy = 355 N/mm² Calculate the shear resistance and give your answer to the nearest whole kN. Do not include units in your answer.
Situation 3: A W12x22 simply supported beam carries a uniformly distributed load. The properties of the section relevant to the problem are as follow: Use A50 steel and Cb - 1.14 d-312 mm bf - 102 mm tf = 10.8 mm tw = 6.60 mm kdes - 18.4 mm ry-21.5 mm Ix - 64.5 x 10^6 mm^4 ly-1.94 x 10^6 mm^4 Sx - 416 x 10^3 mm^3 Zx 480 x 10^3 mm^3 J-122 x 10^3 mm^3 Cw-44.0 x 10^9 mm^6 1. Which of the following nearly gives the maximum safe uniform load (Wu) that the beam could if the span of the beam is 0.800m? Neglect weight of the beam. 960 KN/m 933 KN/m 922 KN/m 975 KN/m
A built-up section shown, 30 feet long, is fixed at both ends and braced in the weak direction at the midheight. A992 steel is used. Determine the following: 11. Ix 12. Ky 13. effective slenderness ratio 14. Fe 15. LRFD design strength 16. ASD allowable strength 18 4 W10 × 49 A 14.4 in² bf 10 in d. 10 in tw 0.340 in tf 0.560 in Ix= 272 in¹ Iy=93 4in¹ W10×54 A 15-3 in² bf 10 in d = 10 lin tw0-370 in tf 0.615 in Ix= 303 in 4 Ty = 103 in 1