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Question

Structural Engineering Question on Working stress and Limit state design concepts

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 = SwliS_{wl}^i
Wheel load stress at edge = SwleS_{wl}^e
Wheel load stress at corner = SwlcS_{wl}^c
Warping stress at interior = StiS^i_t
Warping stress at edge = SteS_t^e
Warping stress at corner = StcS_t^c
Frictional stress between slab and supporting layer = SfS_f
The critical stress combination in the concrete slab during a summer midnight is

A

Swlc+StcS_{wl}^c+S^c_t

B

Swle+Ste+SfS_{wl}^e+S^e_t+S_f

C

Swle+SteSfS_{wl}^e+S^e_t-S_f

D

Swlc+Stc+SfS_{wl}^c+S^c_t+S_f

Answer

Swlc+StcS_{wl}^c+S^c_t

Explanation

Solution

The correct option is (A): Swlc+StcS_{wl}^c+S^c_t.