Optimization of Post-Tensioned Box Girder Bridges with Special Reference to Use of High-Strength Concrete Using AASHTO LRFD Method

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="673821.fig.002a" src="https://static.hindawi.com/articles/ace/volume-2012/673821/figures/673821.fig.002a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Service load conditions</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="673821.fig.002b" src="https://static.hindawi.com/articles/ace/volume-2012/673821/figures/673821.fig.002b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Due to factored loads (strength I was considered for LRFD and LFD)</td></tr></table></td></tr></table>

<table>Comparison of moment envelopes for 180 ft single-span box girder with eight webs spaced at 9 ft.</table>

Advances in Civil Engineering

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Figure 2

Figure 2: Optimization of Post-Tensioned Box Girder Bridges with Special Reference to Use of High-Strength Concrete Using AASHTO LRFD Method 