List of top Structural Engineering Questions

Various stresses in jointed plain concrete pavement with slab size of 3.5 m x 4.5 m are denoted as follows :
Wheel load stress at interior = \(S_{wl}^i\)
Wheel load stress at edge = \(S_{wl}^e\)
Wheel load stress at corner = \(S_{wl}^c\)
Warping stress at interior = \(S^i_t\)
Warping stress at edge = \(S_t^e\)
Warping stress at corner = \(S_t^c\)
Frictional stress between slab and supporting layer = \(S_f\)
The critical stress combination in the concrete slab during a summer midnight is

Consider the following data for a project of 300 days duration.
Budgeted Cost of Work Scheduled (BCWS) = Rs. 200
Budgeted Cost of Work Performed (BCWP) = Rs. 150
Actual Cost of Work Performed (ACWP) = Rs. 190
The 'schedule variance' for the project is

The structural design method that DOES NOT take into account the safety factors on the design loads is

Consider the statements P and Q.
P : In a Pure project organization, the project manager maintains complete authority and has maximum control over the project.
Q : A Matrix organization structure facilitates quick response to changes, conflicts, and project needs.
Which one of the following options is CORRECT ?

The plane truss shown in the figure has 13 joints and 22 members. The truss is made of a homogeneous, prismatic, linearly elastic material. All members have identical axial rigidity. A to M indicate the joints of the truss. The truss has pin supports at joints A and L and roller support at joint K. The truss is subjected to a 10 kN vertically downward force at joint H and a 10 kN horizontal force in the rightward direction at joint B as shown.

The magnitude of the reaction (in kN) at the pin support Lis (rounded off to 1 decimal place).

A slab panel with an effective depth of 250 mm is reinforced with 0.2% main reinforcement using 8 mm diameter steel bars. The uniform center-to-center spacing (in mm) at which the 8 mm diameter bars are placed in the slab panel is _____ (rounded off to the nearest integer).

A homogeneous shaft PQR with fixed supports at both ends is subjected to a torsional moment T at point Q, as shown in the figure. The polar moments of inertia of the portions PQ and QR of the shaft with circular cross-sections are \(J_1\) and \(J_2\), respectively. The torsional moment reactions at the supports P and R are \(T_p\) and \(T_R\), respectively.

If \(\frac {T_p}{T_R} = 4\) and \(\frac {J_1}{J_2} = 2\), the ratio of the lengths \(\frac {L_1}{L_2}\) is

The elements that DO NOT increase the strength of structural steel are

Consider a balanced doubly-reinforced concrete section. If the material and other sectional properties remain unchanged, for which of the following cases will the section becomes under-reinforced?

Consider the statements P and Q.
P: Client's Preliminary Estimate is used for budgeting costs toward the end of planning and design phase.
Q: Client's Detailed Estimate is used for controlling costs during the execution of the project.
Which one of the following options is CORRECT?