Plate Girders - 1


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10 Questions MCQ Test Design of Steel Structures | Plate Girders - 1

Plate Girders - 1 for Civil Engineering (CE) 2022 is part of Design of Steel Structures preparation. The Plate Girders - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Plate Girders - 1 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Plate Girders - 1 below.
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Plate Girders - 1 - Question 1

Economical depth of a plate girder is given by
(where M is maximum moment in the plate girder, σtw is allowable bending stress and tw is thickness of web)

Detailed Solution for Plate Girders - 1 - Question 1

The depth of plate girder is adjusted to get the minimum self-weight of the girder and that depth is called economical depth of plate girder,

σtw = Allowable bending stress in tension

Plate Girders - 1 - Question 2

Minimum spacing of vertical stiffeners is limited to
(where d is the distance between flange angles.)

Detailed Solution for Plate Girders - 1 - Question 2

Vertical stiffeners are provided at the spacing of 0.33 of to 1.5 d where d is the distance between the flanges ignoring fillets and if horizontal stiffeners are also provided d is the maximum clear depth of the web. Spacing can be reduced near the supports where the shear force is large compared to the centre of the girder.

Plate Girders - 1 - Question 3

Consider the following statements in respect of design of web and flange splices
1. Flange splice shall be designed for actual BM at the section
2. Flange splice shall be designed to resist the actual shear at the section
3. Web splipe shall be designed to resist the actual shear at the section
4. Web splice shall be designed for actual BM
Which of these statements are correct

Plate Girders - 1 - Question 4

Consider the following statements:
Horizontal stiffener is provided when
1. The depth of web is small.
2. Tendency to web buckling is less.
3. Vertical stiffeners become too close.
4. Only thin plates are available for web.
Which of these statements are correct?

Plate Girders - 1 - Question 5

 In steel bridges, for span less than 9 m and class. AA loading for wheeled vehicles, the impact factor is taken as

Plate Girders - 1 - Question 6

Horizontal stiffeners are needed in plate girders if the thickness of web is
(where d = distance between flanges; L = span)

Plate Girders - 1 - Question 7

Which one of the following is correct?
An intermediate vertical stiffener connected to the: web is designed to withstand a shearing force of not less than
(where t is web thickness in mm and h is the outstarid of stiffener in mm.)

Detailed Solution for Plate Girders - 1 - Question 7

As per clause 6.7.4.6 of IS: 800-1984, intermediate horizontal stiffeners not subjected to external loads shall'be connected to web by rivets or welds, so as to withstand a shearing force, between each component of the stiffener and the web of not less than,
125t2 / h kN/m

Plate Girders - 1 - Question 8

Which one of the following is the most efficient section for a simply supported gantry Girder.

Plate Girders - 1 - Question 9

In a plate girder, flange angle should be

Detailed Solution for Plate Girders - 1 - Question 9

Unequal flange angles with long horizontal legs are provided to serve the following purposes:
1. To increase the moment of inertia of the section, and
2. A large length is available for making the connection with the flange plate.

Plate Girders - 1 - Question 10

The forces acting on the web splice of the plate girder are

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