摘要
准确确定预应力筋的锚固长度对于计算预应力构件的抗弯和抗剪承载力意义重大。对国外有关预应力筋锚固长度的研究作一文献综述,结合美国既有规范ACI318和AASHTO以及其它研究成果汇总了锚固长度的计算公式,探讨了预应力筋直径、混凝土强度等对锚固长度的影响。
An accurate prediction of development length of prestressing strand is significantly meaningful to calculate moment resistance and shear capacity of pre-tensioned members.This paper presented a literature review of the analysis of development length.The equations for calculating development length were summarized from the existing codes ACI318 and AASHTO,as well as other research results.Also,the effect of the diameter of prestressing strand and the compression strength of concrete on development length was discussed.
出处
《铁道建筑》
北大核心
2015年第10期38-41,55,共5页
Railway Engineering
关键词
预应力筋
锚固长度
粘结
Prestressing Strand
Development Length
Bond
