1. Ma Jun, Sheng Hongfei, Chen Yanjiang. FEM analysis of stress field in anchorage zone of box section under big tonnage[J]. Journal of Harbin institute of technology, 2007, 39(6): 866-869 (in Chinese).
2. Li Guoping. Design principle of prestressed concrete structures[M]. Beijing：China communication press，2002. (in Chinese).
3. Xu Weiguo, He Guanghan. Investigation on Local Stresses in Anchorage Zone of Continuous Rigid Frame Bridge [J]. Journal of Southwest Jiaotong University, 2004, 39(3): 371~375. . (in Chinese).
4. Shao Xudong, Rong hui, Zhang Yang, et al. experimental study of concrete stress under low retracing pre-stress stranded anchorage[J]. Journal of Hunan University ( Natural Science Edition), 2010, 37(2): 1-5(in Chinese).