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鋼筋混凝土空心剪力墻抗震性能試驗(yàn)研究*
彭占關(guān)1,秦鵬1,談忠坤1,2
摘 要

(1 湖南大學(xué)土木工程學(xué)院, 長(zhǎng)沙 410012;  2 湖南中大建設(shè)工程檢測(cè)技術(shù)有限公司, 長(zhǎng)沙 410205)

[摘要]通過對(duì)3片不同形式剪力墻進(jìn)行低周反復(fù)荷載試驗(yàn),研究了普通配筋剪力墻、交叉斜向配筋空心剪力墻及交叉斜向配筋實(shí)體剪力墻在相同受力條件下破壞形態(tài)、承載能力和抗震性能。研究表明:3種墻體均呈現(xiàn)壓彎破壞形態(tài),受拉鋼筋先屈服,然后混凝土壓碎;與普通配筋剪力墻相比,交叉斜向配筋空心剪力墻能夠減輕自重,且洞口不會(huì)削弱墻體的受力性能,試件表現(xiàn)出良好的延性和耗能性能;與交叉斜向配筋實(shí)體剪力墻相比,交叉斜向配筋空心剪力墻的剛度、延性、耗能性能略有下降,但下降幅度不大。提出了交叉斜向配筋實(shí)體剪力墻和交叉斜向配筋空心剪力墻的受彎承載力計(jì)算公式,計(jì)算結(jié)果與試驗(yàn)比較吻合。該研究為后繼裝配式建筑提供了一種新型墻體模型。

[關(guān)鍵詞]空心剪力墻; 低周反復(fù)荷載試驗(yàn); 抗震性能; 受力性能

中圖分類號(hào):TU398, TU352-2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2018)06-0005-07

 

Experimental study on seismic performance of hollow reinforcement concrete shear wall

Peng Zhanguan1, Qin Peng1, Tan Zhongkun1,2

(1 School of Civil Engineering, Hunan University, Changsha 410012, China; 2 Hunan Zhongda Construction Engineering Detection Technology Co.,  Ltd., Changsha 410205, China)

Abstract:Three shear walls of different forms were tested under cyclic loading to study the failure modes,bearing capacity and seismic performance among traditional shear wall,cross diagonal reinforcement hollow shear wall and cross diagonal reinforcement solid shear wall. The study shows that the three walls present bending failure modes: tension reinforcements yield first and then the concrete cursh. Compared with trational shear wall,cross diagonal reinforcement hollow shear wall can  reduce the weight, and the hollow holes will not weaken the mechanical performance of the wall. Specimen shows good ductility and energy dissipation performance. Compared with the cross diagonal reinforcement solid shear wall, the stiffness,ductility and energy dissipation performance of cross diagonal reinforcement hollow shear wall are decreased, but the decrease is not significant. The bending bearing capacity calculation formula of cross diagonal reinforcement solid shear wall and cross diagonal reinforcement hollow shear wall were put forword and the calculated results are quite consistent with the experimental results. The results provide a new type of wall model for the subsequent assembly building.

Keywords:hollow shear wall; cyclic loading test; seismic performance; mechanical performance

 

*國(guó)家自然科學(xué)基金資助項(xiàng)目(51308201),國(guó)家重點(diǎn)專項(xiàng)(2016YFC0701400)。

 

通訊作者:秦鵬,博士,講師,Email:pengqin@hnu.edu.cn。

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