摘要
在分析T梁体外预应力加固力学特性的基础上,探讨了体外预应力钢索自由长度控制,提出减震器布置的钢索建议长度。详细阐述了新型箱式锚板锚固系统和改进型转向器的构造设计。开展了简支T梁桥体外预应力加固设计工程实践,并进行加固前后的受力性能对比分析。
Based on the analysis of mechanical behavior of T-beam strengthened by external pre-stressing tendon,the control of the free length of externally pre-stressed cable is discussed,and the suggested length of cable for shock absorber arrangement is presented.The detailed structural design of the new box anchor plate anchorage system and the modified deviator are developed.The engineering practice of simply supported T-beam strengthened by external pre-stressing is carried out with the comparison of the mechanical properties before and after reinforcement.
出处
《土木工程与管理学报》
2014年第1期7-12,共6页
Journal of Civil Engineering and Management
关键词
体外预应力
简支T梁
自由长度
锚固系统
转向块
external pre-stressing
simply supported T-beam
free length
anchorage system
deviator
