Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Mechanical properties of prestressed reinforcement</td><td class="align_center">Numerical magnitude</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Elastic modulus (Ep)</td><td class="align_center">195000 MPa</td></tr><tr><td class="align_left">Duct deviation coefficient</td><td class="align_center">0.0015</td></tr><tr><td class="align_left">Relaxation coefficient of steel strands</td><td class="align_center">0.3</td></tr><tr><td class="align_left">Friction coefficient of prestressed duct</td><td class="align_center">0.17</td></tr><tr><td class="align_left">End-anchorage reinforcement recondensation</td><td class="align_center">0.006 m</td></tr><tr><td class="align_left">Controlled stretching stress of longitudinal steel strands</td><td class="align_center">1395 MPa</td></tr><tr><td class="align_left">Controlled stretching stress of lateral steel strands</td><td class="align_center">1302 MPa</td></tr><tr><td class="align_left">Controlled stretching stress of vertical steel strands</td><td class="align_center">785 MPa</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Properties of prestressed tendons.</div>

Advances in Civil Engineering

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Table 3

Table 3: Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway 