DB41河 南省地方标准DB 41/T742—2012公路折线配筋先张法预应力混凝土梁设计施工规范Technical Specification for Design and Construction of Highway PretensionedPrestressing Concrete Beams with Bent-up Tendons2012-09-17发布2012-11-17实施河南省质量技术监督局发布 DB41/T742—2012目??次前言.....................................................................................................................................................................II1范围.................................................................................................................................................................1规范性引用文件.............................................................................................................................................1术语和定义.....................................................................................................................................................1符号.................................................................................................................................................................3总则.................................................................................................................................................................4材料.................................................................................................................................................................4基本设计规定.................................................................................................................................................6持久状况承载能力极限状态计算.................................................................................................................8持久状况正常使用极限状态计算.................................................................................................................8短暂状况应力和承载能力极限状态计算..................................................................................................9构造规定.....................................................................................................................................................10耐久性设计.................................................................................................................................................10弯起器设计.................................................................................................................................................13张拉台座设计.............................................................................................................................................14折线配筋先张法预应力混凝土梁的施工................................................................................................1523456789101112131415I DB41/T742—2012前??言为使公路折线配筋先张法预应力混凝土梁的设计和施工符合技术先进、安全可靠、适用耐久、经济合理的要求，制定本标准。本标准按照 GB/T