Civil Engineering
GATE CE topic:steel-structures PYQs
Build your understanding with focused practice from past exam papers.
How to practice topic:steel-structures
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 22. Imported answers require independent review unless marked reviewed.
Question 15
Open questionCEMCQ1 markNeeds review
As per IS:800-2007, design of a cantilever steel beam section for its moment capacity requires fulfilment of an upper bound, expressed as:
The reason for such upper bound is to
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Open questionCENAT1 markNeeds review
Two steel plates are to be connected together by a 5 mm fillet weld of length 150 mm to transfer a design load. If the size of the fillet weld used to connect the same two plates is changed to 6 mm, the weld length (in mm) needed for transferring the same design load is ______ (in integer).
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Open questionCENAT2 marksNeeds review
A rigid-jointed portal frame, shown in the figure, consists of beam and columns of equal length L. The frame has a fixed support at one end and a roller support at the other end. The frame is subjected to a uniformly distributed load w and a lateral load P as shown in the figure. The plastic moment capacity of the beam and column sections is
. Consider a combined beam-column mechanism for plastic collapse. By applying the virtual work equation corresponding to the combined plastic collapse mechanism,
is expressed as
where C₁ and C₂ are constants.
The value of (C₁/C₂) is ______ (in integer).
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Open questionCENAT1 markNeeds review
Consider the filet-welded lap joint shown in the figure (not to scale). The length of the weld shown is the effective length. The welded surfaces meet at right angle. The weld size is 8 mm, and the permissible stress in the weld is 120 MPa. What is the safe load P (in kN, round off to one decimal place) that can be transmitted by this welded joint?
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Open questionCEMCQ2 marksNeeds review
Consider the horizontal axis passing through the centroid of the steel beam cross-section shown in the figure. What is the shape factor (rounded off to one decimal place) for the cross-section?
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Open questionCE-2MCQ2 marksNeeds review
Two plates are connected by fillet welds of size 10 mm and subjected to tension, as shown in the figure. The thickness of each plate is 12 mm. The yield stress and the ultimate stress of steel under tension are 250 MPa and 410 MPa, respectively. The welding is done in the workshop (partial safety factor,
). As per the Limit State Method of IS 800: 2007, what is the minimum length (in mm, rounded off to the nearest higher multiple of 5 mm) required of each weld to transmit a factored force P equal to 275 kN? 
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionCEMCQ2 marksNeeds review
A weld is used for joining an angle section ISA 100 mm × 100 mm × 10 mm to a gusset plate of thickness 15 mm to transmit a tensile load. The permissible stress in the angle is 150 MPa and the permissible shear stress on the section through the throat of the fillet weld is 108 MPa. The location of the centroid of the angle is represented by
in the figure, where
mm. The area of cross-section of the angle is 1903 mm
. Assuming the effective throat thickness of weld to be 0.7 times the given weld size, the lengths
and
(rounded off to the nearest integer) of the weld required to transmit a load equal to the full strength of the tension member are, respectively 
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionCEMCQ2 marksNeeds review
For the square steel beam cross-section shown in the figure, the shape factor about
axis is
and the plastic moment capacity is
. Consider yield stress
MPa and
mm. 
\n\nThe values of
and
(rounded-off to one decimal place) areYour answerChoose one option.
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Open questionCEMCQ2 marksNeeds review
A prismatic steel beam is shown in the figure. The plastic moment,
, calculated for the collapse mechanism using static method and kinematic method is 
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Open questionCENAT2 marksNeeds review
A column is subjected to a total load (
) of 60 kN supported through a bracket connection, as shown in the figure (not to scale). The resultant force in bolt R (in kN, round off to one decimal place) is 
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