Question
Two concrete spans of a 250 -m-long bridge are placed end to end so that no room is allowed for expansion (Fig. Pl9.55a). If a temperature increase of $20.0^{\circ} \mathrm{C}$ occurs, what isthe height $y$ to which the spans rise when they buckle (Fig. Pl9. 55 $\mathrm{b} )$ ?
Step 1
0^{\circ} \mathrm{C}$. We can use the formula for thermal expansion, which is $L_f = L_i(1 + \alpha \Delta T)$, where $L_i$ is the initial length, $\alpha$ is the linear expansion coefficient, and $\Delta T$ is the change in temperature. Show more…
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