摘要
现有文献已对斜拉索无应力索长计算和倾角修正进行了研究,但对拉索倾角的2次修正及锚固齿块尺寸的修正未予以考虑。以整体计算确定的索力为已知量,推导拉索在塔端和梁端的倾角修正公式及拉索主要参数计算公式,给出拉索倾角2次修正计算流程。结合工程实例,对拉索角度2次修正的相关问题进行探讨。
The existing documents have investigated the calculation for stresslessness length and modification for inclined angle of the stay cables, but have not considered the second modification for inclined angle of the stay cables and the modification for size of the anchoring gear blocks. This paper based on the cable tension determined by integral calculation as given quantity derives the modification formulae for inclined angle of stay cables on tower ends and bean ends and the calculation formulae for main parameters of stay cables, and provides the process of second modification calculation for inclined angle of stay cables. In combination with project examples, the paper probes into the related problems in second modification for inclined angle of stay cables.
出处
《公路交通技术》
2009年第6期72-76,共5页
Technology of Highway and Transport
关键词
斜拉桥
倾角
2次修正
程序实现
cable-stayed bridge
inclined angle
secondary modification
realization of program
