摘要
针对新疆杨木梁采用梁底粘贴玄武岩纤维布(BFRP)的加固方式,根据粘贴位置的不同,进行受弯性能的试验研究。通过对未加固梁与加固梁的中性轴位置变化,承载力、挠度等抗弯性能指标比较,结果表明:随着荷载的增加,未加固梁中性轴位置有向受拉区移动的趋势,加固梁的中性轴位置有向受压区移动的趋势;木梁底部粘贴BFRP布位置的变化,对其承载力和挠度有一定的影响;梁底满贴BFRP布时,其承载力和挠度提高幅值较优。
For Populus bolleana timber beams reinforced with basalt fiber cloth（ BFRP） on the bottom,it was studied its flexural properties according to the different pasting position. By comparing unreinforced beams with reinforced beams＇ change in neutral axis position,bearing capacity,and deflection etc,the results showed that unreinforced beams＇ neutral axis position had the trend of moving to the tension zone with the increase of load,the position of the neutral axis of the strengthened beams had a tendency to move towards the compression zone. With the position changed on the bottom of the wooden beams pasted BFRP cloth,there was a certain effect on the bearing capacity and deflection; for the reinforced beams with full pasting of BFRP cloth on the bottom,the increasing of bearing capacity and deflection was significant.
出处
《工业建筑》
CSCD
北大核心
2016年第4期159-162,共4页
Industrial Construction
基金
国家自然科学基金项目(51368057)
新疆维吾尔自治区自然科学基金重点资助项目(2012211A006)
新疆维吾尔自治区高校科研计划科学研究重点资助项目(XJEDU2012S08)
关键词
BFRP布
粘贴部位
新疆杨木梁
抗弯性能
BFRP cloth
pasting position of
populus bolleana timber beams
bending behavior
