粘貼片材加固混凝土梁時(shí)的端部剝離應(yīng)力分析
歐陽(yáng)煜 錢在茲
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歐陽(yáng)煜 錢在茲
(浙江大學(xué)土木系 杭州 310027)[提要] 在彈性理論的基礎(chǔ)上,推導(dǎo)了任意線性分布荷載作用下混凝土梁粘貼加強(qiáng)片材加固時(shí),片材端部剝離應(yīng)力的計(jì)算公式。計(jì)算結(jié)果和有限元方法基本吻合。分析表明,剝離應(yīng)力不但和混凝土梁的參數(shù)有關(guān),還和粘膠層以及加強(qiáng)材料有關(guān)。
[關(guān)鍵詞] 混凝土梁 加強(qiáng)片 剝離應(yīng)力Based on the linear elastic theory, this paper presents a method for calculating the peeling stress at the sheetirIg end ofa RC beam witha strengthening sheeting under linear distributed loads. This method agrees well with the finite element method. The results show that the peeling stress is influenced not only by the parameters of the beam, but also by the adhesive and the strengthening material.
Keywords: RC beam; strengthening sheeting;peeling stress
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