本文關(guān)鍵詞：不同程度損傷RC梁內(nèi)嵌FRP材料抗彎性能試驗(yàn)研究　出處：《河北科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 內(nèi)嵌纖維材料 損傷 加固 鋼筋混凝土梁 抗彎性能

【摘要】：目前,研究不同損傷程度下鋼筋混凝土加固梁的抗彎性能試驗(yàn),大多是采用粘貼碳纖維布的加固方法。內(nèi)嵌纖維材料加固法優(yōu)于纖維材料表面粘貼法,且目前研究較少,本試驗(yàn)采用內(nèi)嵌纖維材料對(duì)鋼筋混凝土梁進(jìn)行加固,研究其在不同損傷程度下加固梁的抗彎性能。通過(guò)設(shè)計(jì)13根梁的加固方案,對(duì)FRP材料加固鋼筋混凝土梁進(jìn)行試驗(yàn)研究。試驗(yàn)將加固梁分為四組,第一組為3根不同程度損傷內(nèi)嵌CFRP板條的兩開(kāi)槽加固梁,第二組為3根不同程度損傷內(nèi)嵌CFRP板條的三開(kāi)槽加固梁,第三組為3根不同程度損傷內(nèi)嵌CFRP筋的兩開(kāi)槽加固梁,第四組為3根不同程度損傷內(nèi)嵌BFRP筋的兩開(kāi)槽加固梁。主要研究以下幾方面內(nèi)容,首先研究每種加固方法在不同損傷程度下試驗(yàn)梁的抗彎性能;其次研究開(kāi)槽數(shù)量對(duì)CFRP板條加固效果的影響;第三是研究不同內(nèi)嵌材料對(duì)加固效果的影響。在試驗(yàn)的基礎(chǔ)上,以試驗(yàn)梁的截面尺寸、配筋率、鋼筋直徑、混凝土彈性模量以及鋼筋和內(nèi)嵌材料的彈性模量等為參數(shù),以建筑結(jié)構(gòu)標(biāo)準(zhǔn)規(guī)范和技術(shù)規(guī)程、郝永超等人的理論計(jì)算為依據(jù),對(duì)加固梁抗彎性能進(jìn)行分析,最后比較理論與試驗(yàn)結(jié)果的吻合情況。
[Abstract]:At present, most of the tests on the flexural behavior of reinforced concrete strengthened beams with different damage degree are carried out by means of carbon fiber sheets. The method of embedded fiber reinforced material is better than that of fiber surface bonding method. At present, the research is less. In this experiment, the reinforced concrete beams are strengthened with embedded fiber materials, and the flexural behavior of the beams strengthened with different damage degree is studied. Through the design of 13 beams reinforcement scheme. The experimental study on reinforced concrete beams strengthened with FRP material is carried out. The experimental results divide the strengthened beams into four groups. The first group is three two slotted beams with different degree of damage embedded in CFRP slab. The second group is three three slotted beams with different degree of damage and the third group is three CFRP reinforced beams with different degree of damage. Group 4th consists of three beams with BFRP tendons embedded in different degree of damage. The main contents are as follows: firstly, the flexural behavior of each reinforcement method under different damage degree is studied. Secondly, the effect of the number of slots on the reinforcement effect of CFRP slab is studied. The third is to study the effect of different embedded materials on the reinforcement effect. On the basis of the test, the section size, reinforcement ratio and the diameter of steel bar of the test beam are studied. The elastic modulus of concrete and the elastic modulus of reinforcing bar and embedded material are taken as parameters. Based on the standard code and technical specification of building structure and the theoretical calculation of Hao Yongchao and others, the flexural properties of strengthened beams are analyzed. Finally, the theoretical and experimental results are compared.
【學(xué)位授予單位】：河北科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU375.1

【參考文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

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2 付士峰;不同程度損傷混凝土梁加固后抗彎性能試驗(yàn)研究[D];河北工業(yè)大學(xué);2006年

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本文編號(hào)：1377351