内锚固段长度计算公式比较研究

为探讨国内各行业土木工程规范中内锚固长度计算公式的区别、联系和存在的问题，基于国内各行业规范，通过对锚索（杆）胶结式内锚固段长度计算公式的比较研究，发现按不同行业规范计算的内锚固段长度相差较大。究其原因，系采用现行规范计算内锚固段长度时，因执行不同的荷载规定（设计值与标准值混用），各计算公式的安全裕度不同而产生的较大差异。因此建议在以后修订规范时，能综合考虑上述因素，尽量缩小差异，以使规范更好地服务于设计工作。

Comparative study on length calculation formulas of inner anchored section

In order to discuss the differences,linkages and existed problems of length calculation formulas of inner anchored section of bonded anchor cable of civil engineering codes of different industries,based on the codes of different industries,through comparison and study of the length calculation formulas of inner anchored section of anchor cable,it is discovered that the length calculated by different codes varies much.In the calculation,if different load values are adopted according to various codes and the design value and standard value are mixed,the safety margins calculated by different formulas are different which will result in larger difference of calculated anchored length.It is suggest that the relative administrative departments pay attention to the above problems in future code revision for reducing the difference,providing a better service for design work.