27m门型预应力钢纤维混凝土杆塔真型模拟试验研究  

Full-scale Experimental Study on 27 m High Portal Double Prestressed Steel Fiber Reinforced Concrete Poles

作　　者：赵顺波[1] 张天光 韩文德[3] 

机构地区：[1]华北水利水电学院,郑州市450011 [2]河南省电力勘测设计院,郑州市450002 [3]河南省电力公司,郑州市450002

出　　处：《电力建设》2006年第10期39-42,共4页Electric Power Construction

摘　　要：对研制的27 m门型预应力钢纤维混凝土杆塔进行了真型模拟试验研究。结果表明,电杆在正常使用荷载下处于抗裂弹性工作状态,表现出良好的整体受力性能,各项性能均满足设计要求。一旦发生超载运行出现裂缝,裂缝细短且非贯通,卸载后变形恢复能力强,提高了结构正常使用性能。同时,预应力钢纤维混凝土电杆在预应力放张和杆段焊接安装过程中,避免了普通预应力混凝土电杆,在预应力筋挂板和杆段连接钢圈附近混凝土起皮爆裂现象。A full - scale experimental study has been carried out on the 27 m high portal double prestressed steel fiber reinforced concrete poles. The test results indicate that the poles is in the anti - cracking flexible status under normal applicable loads, showing the good integral forced features, and all performances have met the design requirements. As a crack occurs due to over load operation, the crack is short and narrow, not penetrated. After unloading the recovery capability from deformation is strong, which increases the normal application of the structure.

关 键 词：预应力钢纤维混凝土 电杆 钢叉梁 真型模拟试验研究 

分 类 号：TU528.572[建筑科学—建筑技术科学]