Chapter 5, Problem 5.21QPP

You are designing a pedestrian bridge to cross a busy urban street. The bridge connects an open plaza on one side of the street with a group of office buildings on the other. The estimated dead loads for the bridge deck are $350{\text{lb/ft}}^{\text{2}}$ and the code-specified live loads are $90{\text{lb/ft}}^{\text{2}}.$ What serviceability load would you use to check the deflection of the bridge deck? What serviceability loads would you use to check the settlement of the bridge? Justify your answers.