摘要
把后张法预应力简支梁看作为压弯构件,考虑几何非线性的影响,通过建立平衡微分法,推导出后张法简支梁在预应力和自重作用下的挠度精确计算公式,并通过算例进行了比较验证。
This article is derived the exact formula of inverted camber of post stressed simple beam under the dead weight of PC, and verify by an example, through balance differential method, seeming post stressed simple beam as buckling member and considering geometric non-linear.
出处
《公路工程》
2011年第5期22-24,32,共4页
Highway Engineering
基金
华南理工大学亚热带建筑科学国家重点实验室开发课题(2008KA07)
关键词
几何非线性
预应力
后张法
上拱度
微分法
geometric non-linear, prestress
post-tensioning
inverted camber
differential method
