摘要
选取8根采用玄武岩纤维布(BFRP)U型箍加固的新疆杨木梁进行抗弯试验,针对U型箍的布置数量及位置的变化,对比分析梁的破坏现象,中性轴位置变化、承载力、挠度等性能指标。结果表明:梁未粘贴U型箍时,梁底纤维布剥落破坏;粘贴U型箍后具有一定锚固作用,随着U型箍的数量及位置变化,对梁的受弯破坏、承载力和挠度具有不同程度的影响,并且中性轴位置移动一致,均有向受压区移动的趋势。
Selecting 8 Xinjiang poplar beams reinforced basalt fiber cloth( BFRP) U-type hoop and study flexural properties according to the changes of the U-shaped hoop number and location of the comparative,analyze the damage phenomena,neutral axis position changes,the bearing capacity,deflection and other performance indicators. The results showed that the BFRP sheet on the beam bottom peeled off when U hoop was not pasted on the beam,pasting U-hoop had a certain anchor role,the changes in number and location of the U-shaped hoop had different effect on the beam flexural bearing capacity and deflection,and consistent move of the neutral axis position had a tendency to move towards the compression zone.
出处
《工业建筑》
CSCD
北大核心
2015年第6期43-46,共4页
Industrial Construction
基金
国家自然科学基金资助项目(51368057)
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)
新疆维吾尔自治区自然科学基金重点资助项目(2012211A006)
关键词
新疆杨木梁
U型箍
底部粘贴
抗弯性能
加固梁
Xinjiang poplar beam
U-shaped hoop
bottom paste
bending strength
reinforced beam
