A hole in flange of beam causes(a) increase in stress(b) decrease in stress(c) makes the stress to half(d) does not affect the stressI got this question in an international level competition.This intriguing question originated from Deflection & Holes in Beams in portion Design of Beams of Design of Steel Structures

A hole in flange of beam causes(a) increase in stress(b) decrease in s

1.	A hole in flange of beam causes(a) increase in stress(b) decrease in stress(c) makes the stress to half(d) does not affect the stressI got this question in an international level competition.This intriguing question originated from Deflection & Holes in Beams in portion Design of Beams of Design of Steel Structures
Answer» Correct choice is (a) increase in stress To explain: A hole in flange of beam causes an increase in stress. If the hole in COMPRESSION flange CONTAINS rivet or bolt, the strength REDUCTION is LESSENED as fastener can transmit compression.

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Which of the following are not correct regarding design of beams with openings?(a) diameter of circular opening should be restricted to 0.5D(b) for rectangular stiffened openings depth should be less than 0.7D and length less 2D(c) for rectangular unstiffened openings, depth should be less than 0.5D and length less than 1.5D(d) point load should be applied within a distance d from adjacent openingThis question was addressed to me in an interview for internship.My question is taken from Deflection & Holes in Beams in portion Design of Beams of Design of Steel Structures
Which of the following are correct regarding design of beams with openings?(a) web opening should be away from support by twice the beam depth(b) hole should be eccentrically placed in web(c) hole should not be placed within middle one third of the span(d) clear spacing between openings should be less than beam depthThis question was posed to me in an online quiz.This key question is from Deflection & Holes in Beams in section Design of Beams of Design of Steel Structures
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