预应力混凝土T形梁设计计算示例

预 应 力 混 凝 土 T形 梁 设 计 计 算 示 例预应力混凝土T 形梁设计计算示例---------------------------------------------------------------------------------11 设计资料及构造布置------------------------------------------------------------------------------------------21.1 桥梁跨径及桥宽---------------------------------------------------------------------------------------------31.2 设计荷载------------------------------------------------------------------------------------------------31.3 材料及施工工艺---------------------------------------------------------------------------------------31.4 设计依据------------------------------------------------------------------------------------------------31.5 横截面布置---------------------------------------------------------------------------------------------31.6 横截面沿跨长的变化---------------------------------------------------------------------------------51.7 横隔梁的设立------------------------------------------------------------------------------------------52 主梁内力计算---------------------------------------------------------------------------------------------------52.1 恒载计算------------------------------------------------------------------------------------------------52.2可变作用计算---------------------------------------------------------------------------------------62.2.1 冲击系数和车道折减系数------------------------------------------------------------------62.2.2.计算主梁的荷载横向分布系数------------------------------------------------------------72.2.3. 车道荷载取值------------------------------------------------------------------------------112.2.4.计算可变作用效应---------------------------------------------------------------------------112.3 主梁作用效应组合------------------------------------------------------------------------------------143 预应力钢束的估算及其布置---------------------------------------------------------------------------------153.1 跨中截面钢束的估...