目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc263504249"1方案比选PAGEREF_Toc263504249\h1HYPERLINK\l"_Toc263504250"1.1方案比选的主要标准PAGEREF_Toc263504250\h1HYPERLINK\l"_Toc263504251"1.2方案编制PAGEREF_Toc263504251\h1HYPERLINK\l"_Toc263504252"1.3方案评选PAGEREF_Toc263504252\h3HYPERLINK\l"_Toc263504253"2桥梁的设计计算PAGEREF_Toc263504253\h4HYPERLINK\l"_Toc263504254"2.1设计资料PAGEREF_Toc263504254\h4HYPERLINK\l"_Toc263504255"2.2横截面布置PAGEREF_Toc263504255\h5HYPERLINK\l"_Toc263504256"2.3横截面沿跨长的变化PAGEREF_Toc263504256\h10HYPERLINK\l"_Toc263504257"2.4横隔梁的设置PAGEREF_Toc263504257\h10HYPERLINK\l"_Toc263504258"3主梁作用效应计算PAGEREF_Toc263504258\h11HYPERLINK\l"_Toc263504260"3.1永久作用效应计算PAGEREF_Toc263504260\h11HYPERLINK\l"_Toc263504261"3.1.1永久作用集度PAGEREF_Toc263504261\h11HYPERLINK\l"_Toc263504262"3.1.2永久作用效应PAGEREF_Toc263504262\h12HYPERLINK\l"_Toc263504263"3.2可变作用效应计算（偏心压力法）PAGEREF_Toc263504263\h13HYPERLINK\l"_Toc263504264"3.2.3车道荷载的取值PAGEREF_Toc263504264\h17HYPERLINK\l"_Toc263504265"3.2.4计算可变作用效应PAGEREF_Toc263504265\h17HYPERLINK\l"_Toc263504266"4预应力钢束的估算及其布置PAGEREF_Toc263504266\h24HYPERLINK\l"_Toc263504267"5计算主梁截面几何特性PAGEREF_Toc263504267\h27HYPERLINK\l"_Toc263504268"6钢束预应力损失计算PAGEREF_Toc263504268\h27HYPERLINK\l"_Toc263504269"6.1预应力钢筋张拉（锚下）控制力PAGEREF_Toc263504269\h27HYPERLINK\l"_Toc263504270"6.2钢束应力损失PAGEREF_Toc263504270\h27HYPERLINK\l"_Toc263504274"7主梁截面承载力与应力验算PAGEREF_Toc263504274\h27HYPERLINK\l"_Toc263504275"7.1持久状况承载能力极限状态承载力验算PAGEREF_Toc263504275\h27HYPERLINK\l"_Toc263504276"7.2应力验算PAGEREF_Toc263504276\h27HYPERLINK\l"_Toc263504277"7.3抗裂性验算PAGEREF_Toc263504277\h27HYPERLINK\l"_Toc263504278"8行车道板计算PAGEREF_Toc263504278\h27HYPERLINK\l"_Toc263504279"9支座计算PAGEREF_Toc263504279\h27TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc263504279"参考文献PAGEREF_Toc263504279\h27TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc263504279"致谢PAGE