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（廣西科技大學(xué)土木建筑工程學(xué)院， 柳州 545006）

［摘要］現(xiàn)有研究成果表明自密實(shí)混凝土與外包角鋼聯(lián)合加固可大幅提高混凝土柱的受壓承載力，為了研究該方法加固的混凝土柱的抗震性能，并考慮角鋼尺寸、綴板間距及軸壓比的影響，進(jìn)行了8個(gè)混凝土柱加固試件的低周反復(fù)荷載試驗(yàn)。試驗(yàn)結(jié)果表明：聯(lián)合加固方法能有效改善混凝土柱的抗震性能；相比外包角鋼加固法，聯(lián)合加固柱延性和耗能能力大幅度提升，剛度退化和強(qiáng)度退化性能得到改善。

［關(guān)鍵詞］自密實(shí)混凝土；外包角鋼加固；聯(lián)合加固混凝土柱；抗震性能；低周反復(fù)荷載試驗(yàn)

中圖分類號(hào)：TU375-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)10-0092-12

Experimental research on seismic performance of concrete column jointly reinforced with self-compacting concrete and angle steel

HU Qiang, JIA Songlin, KUANG Zheyang, WU Huiqin, ZHANG Jun, YANG Huanwei

(College of Civil and Architecture Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China)

Abstract:Available research indicates that compressive capacity of concrete column jointly reinforced with self-compacting concrete and angle steel increases significantly. In order to investigate seismic performance of concrete columns reinforced by this method, and consider influences of the size of angle steels, the spacing of batten plates and axial pressure ratio, low-cyclic reversed loading tests were carried out on eight reinforced concrete column specimens. The experimental results demonstrate that the proposed jointly reinforcing method can effectively improve the seismic performance of the concrete columns; compared to the method of reinfoced with angle steels, the ductility and energy dissipation capacity of the jointly reinforced columns are greatly improved, and the stiffness degradation and strength degradation performance are improved.

Keywords:self-compacting concrete; reinforced with angle steel; jointly reinforced concrete column; seismic performance;low-cyclic reversed loading test

*廣西教育廳中青年教師基礎(chǔ)能力提升項(xiàng)目(2018KY0316)，廣西科技大學(xué)博士基金項(xiàng)目(?？撇?7Z12)。

作者簡(jiǎn)介：胡強(qiáng)，博士，講師，Email：330437811@qq.com；通信作者：賈松林，碩士，高級(jí)工程師，Email: 372453915@qq.com。