預(yù)應(yīng)力CFRP布加固腐蝕鋼梁的變形計(jì)算方法
[Abstract]:The damage of the steel beam is simulated by removing the area of the lower flange of the steel beam, and then the CFRP cloth is used to paste the steel beam flange to carry on the research of strengthening and repairing. Six corroded steel beams were strengthened with CFRP sheets. The specimens with 50% and 100% flange removal rates were strengthened with CFRP cloth or prestressed CFRP cloth attached to the bottom flange of the steel beam. The test results show that the load-deformation curve has two linear characteristics: in the first stage, the load-deformation curve is linearly related to the lower flange of the steel beam before yielding; In the second stage, when the lower flange of the steel beam yields, the load-deformation curve presents a turning point and the slope decreases. On the basis of the experiment, the formula for calculating the deformation of corroded steel beams strengthened with prestressed CFRP sheets is established. The theoretical calculation results are in good agreement with the experimental results.
【作者單位】: 遼寧省交通高等?茖W(xué)校道橋系;
【基金】:國家教育部博士點(diǎn)基金項(xiàng)目(20050145012) 遼寧省重點(diǎn)實(shí)驗(yàn)室項(xiàng)目(JG-200601)
【分類號】:TU391
【相似文獻(xiàn)】
相關(guān)期刊論文 前6條
1 高仲學(xué);楊威;;CFRP布加固鋼筋混凝土梁可靠性分析[J];土木建筑與環(huán)境工程;2011年06期
2 高劍平;溫群昊;羅丹;羅民;林楊;;CFRP布抗彎加固鋼筋混凝土梁內(nèi)鎖錨固體系試驗(yàn)研究[J];工程抗震與加固改造;2011年05期
3 周樂;聶紅賓;;CFRP布加固鋼筋混凝土梁黏結(jié)應(yīng)力分析[J];沈陽大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年01期
4 宿瑩;吳智敏;胡程鶴;石昌文;;CFRP布加固鋼筋混凝土梁的新型復(fù)合粘結(jié)技術(shù)[J];建筑科學(xué)與工程學(xué)報(bào);2009年04期
5 何初生;王文煒;楊威;葉見曙;;預(yù)應(yīng)力CFRP布加固鋼筋混凝土梁疲勞性能試驗(yàn)研究[J];東南大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年04期
6 吳輝琴;謝肖禮;藏華;張俊;康侃;;CFRP布加固鋼筋混凝土梁抗彎性能的仿真分析[J];蘭州理工大學(xué)學(xué)報(bào);2007年04期
相關(guān)會(huì)議論文 前1條
1 莊江波;葉列平;;CFRP布加固鋼筋混凝土梁的裂縫研究[A];第三屆全國FRP學(xué)術(shù)交流會(huì)議論文集[C];2004年
相關(guān)碩士學(xué)位論文 前1條
1 宿瑩;CFRP布加固鋼筋混凝土梁的新型復(fù)合粘結(jié)技術(shù)[D];大連理工大學(xué);2010年
,本文編號:2347723
本文鏈接:http://sikaile.net/jianzhugongchenglunwen/2347723.html