摘要
针对目前传统的试验方法会使新型智能纤维筋端夹持部位产生滑移甚至破坏,设计一种新型锚固装置,防止夹持部位滑移或破坏,使智能筋可以采用传统试验机进行力学性能试验;经过多次力学性能试验,发现新型智能纤维筋在传统加载速度下新型智能纤维筋内部光栅传感器监测的应变与筋体表面应变不一致,有明显的滞后现象。通过分析该现象产生的原因,采取改变加载速度的方法使光栅传感器测试应变与实际应变得到同步。
For the traditional test methods will make the gripping part of new-type smart reinforcing bar generation slip or destroy,a new type of anchorage device is designed to prevent the gripping part slip or destroy,and make the traditional testing machine be used to test the mechanical properties of new-type smart reinforcing bar.After several times of mechanical properties tests,it has been found that the internal strain of new-type smart reinforcing bar monitored by fiber grating sensor is different from the surface value in traditional load speed,it has obvious lag phenomenon.By analysis of the causes,a method has been obtained to make the strain monitored by fiber grating sensor be in step with its true value by changing the load speed.
出处
《工业建筑》
CSCD
北大核心
2013年第S1期610-612,629,共4页
Industrial Construction
基金
浙江省优先主题重点国际科技合作研究项目(2009C14006)
关键词
新型智能纤维筋
锚固装置
应变滞后
加载速度
new-type smart reinforcing bar
anchorage device
strain lag
loading speed
