The difficulties of transverse linking, shrinkage & creep difference of concrete in different ages and settlement difference are three main problems in bridge widening. This paper accomplishes the following work aiming at solving the difficulties mentioned above.
本文针对桥梁拓宽中普遍存在的三个难点(横向拼接方式、混凝土收缩徐变的龄期差、基础沉降差)开展研究,完成以下工作:(1)总结桥梁拓宽的横向拼接方式,各种桥型常用的上下构拓宽方法,为桥梁拓宽设计提供参考。
参考来源 - 混凝土桥梁拓宽理论与应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
路基拼接设计的核心是减少新旧路基之间的差异沉降，消除由于差异沉降而引起的道路纵向裂缝和横向不均匀沉降。
Mosaic is the core of roadbed design and reduce the difference between roadbed subsidence, eliminate the differences and settlement of lateral and longitudinal cracks road uneven settlement.
同时，对梁的拼接承载力要求以及横向钢框架横梁设计中的宽厚比控制问题进行讨论并给出了建议。
In addition, the strength requirement on beam splicing and the width-thickness ratio control of the beam are discussed and corresponding proposals are put forward.
位移偏差引入的相位随着拼接光栅压缩器传递，其对远场焦斑的影响，取决于每片子光栅的非整数倍光栅常数的横向位移偏差和纵向位移偏差的综合作用。
The phase difference caused by piston error translated with the tiled-grating compressor, the focal spot was affected by both non-integral number of grating space and out-of-plane piston error.
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