- 摘 要
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（東北林業(yè)大學(xué)， 哈爾濱 150040）
［摘要］復(fù)合砂漿預(yù)應(yīng)力鋼絲繩加固技術(shù)是一種新型橋梁結(jié)構(gòu)加固技術(shù)。通過采用此技術(shù)加固的某T梁橋加固前后的靜力荷載試驗(yàn)及有限元分析，對加固效果進(jìn)行了分析。分析結(jié)果表明：加固后橋的主梁撓度和應(yīng)變明顯減小，加固措施有效地提高了梁抗彎承載力和剛度。同時，該加固技術(shù)可以在橋梁正常通車的情況下進(jìn)行，值得在實(shí)際工程中推廣應(yīng)用。
［關(guān)鍵詞］預(yù)應(yīng)力鋼絲繩; 復(fù)合砂漿; T梁橋; 試驗(yàn)分析
中圖分類號：U446.1 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2014)03-0067-04
Experimental analysis of the bridge strengthening by composite mortar prestressed steel cable
Zhang Pengfei, Sun Quansheng
(Northeast Forestry University, Harbin 150040, China)
Abstract:
Composite mortar prestressed steel cable strengthening technology is a new type of bridge structure strengthening technology. Based on a T-shaped beam bridge strengthened by this technology, the static load test and finite element analysis were carried out on two states of the structure before and after strengthening to analyze effects of strengthening. Results show that the deflection and strain of the main beam obviously decrease after strengthening and this new technology improves the bending capacity and stiffness effectively. Meanwhile, this technology can be used without affecting the bridge traffic, and it is deserved to be promoted in practical engineering.
Keywords:prestressed steel cable; composite mortar; T-shaped beam bridge; experimental analysis
作者簡介：張鵬飛，碩士研究生，Email: zpf19841222@163.com。
參考文獻(xiàn)
［1］黃華,劉伯權(quán),邢國華,等.高強(qiáng)不銹鋼絞線網(wǎng)滲透性聚合砂漿加固的T型梁橋試驗(yàn)［J］.中國公路學(xué)報(bào),2007,20(4):83-90.
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