- 摘 要
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（廣東省建筑科學(xué)研究院集團股份有限公司， 廣州 510500）
［摘要］通過對不同反拱荷載作用下試驗梁開裂荷載和極限荷載的分析，提出了反拱法粘貼碳纖維布加固的最佳反拱荷載，在最佳反拱荷載作用下粘貼碳纖維布能使試驗梁達(dá)到最佳開裂荷載和極限荷載。通過對比分析撓度數(shù)據(jù)，得到了反拱法粘貼碳纖維布加固能降低梁撓度，增加速率，延遲梁破壞，提高梁承載力等結(jié)論。
［關(guān)鍵詞］反拱法； 碳纖維布加固； 最佳反拱荷載； 開裂荷載
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)06-0086-04
Experimental study on concrete beams strengthened with CFRP using reverse arch method
Lin Qihui， Wang Longhui
（Guangdong Provincial Academy of Building Research Group Co., Ltd., Guangzhou 510500, China）
Abstract:Based on the analysis of the cracking load and the ultimate load of the test beam under different reversed arch loads, the optimal reversed arch load for strengthening the test beam by CFRP was proposed. Under the optimal reversed arch load, pasting CFRP could make the test beam reach the optimal cracking load and ultimate load. Through the comparative analysis of deflection data, it is concluded that the reinforcement of CFRP using the reversed arch method can reduce the increase rate of beam deflection, delay the failure of the beam and improve the bearing capacity of the beam.
Keywords:reverse arch method; CFRP reinforcement; optimal reverse arch load; cracking load
作者簡介：林啟輝，碩士，高級工程師，Email:34448904@qq.com。
