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(1 四川建筑職業(yè)技術(shù)學(xué)院， 德陽 618000；  2 成都理工大學(xué)環(huán)境與土木工程學(xué)院， 成都 610059； 3 地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國家重點(diǎn)實(shí)驗(yàn)室， 成都 610059)

［摘要］采用薄鋼板剪力墻加固既有鋼筋混凝土框架結(jié)構(gòu)是一種簡便有效的結(jié)構(gòu)修復(fù)方法。為研究采用薄鋼板剪力墻加固的帶填充墻鋼筋混凝土框架結(jié)構(gòu)的抗震性能，對5個(gè)縮尺比為1∶3不同形式的兩層單跨鋼筋混凝土模型進(jìn)行了水平荷載作用下的低周反復(fù)試驗(yàn)，分析了各模型的滯回性能、延性及耗能能力。結(jié)果表明，在水平荷載作用下薄鋼板剪力墻加固的帶有填充墻鋼筋混凝土框架結(jié)構(gòu)的水平承載力、耗能能力及延性均得到了明顯的提升； 與純框架結(jié)構(gòu)相比，有完整填充墻的框架結(jié)構(gòu)的水平承載力、耗能能力和延性均有所提升，但帶洞口填充墻的框架結(jié)構(gòu)的延性并未提高； 采用薄鋼板剪力墻加固后的帶填充墻鋼筋混凝土框架結(jié)構(gòu)的承載力和耗能能力均有提高，但延性均有降低，其原因是薄鋼板平面內(nèi)拉力場的作用引起鋼筋混凝土框架柱內(nèi)的剪力明顯增加所致。

［關(guān)鍵詞］既有建筑； 加固； 鋼筋混凝土框架； 薄鋼板剪力墻； 抗震性能； 延性； 耗能能力

中圖分類號：TU398-7文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)20-0103-06

Experimental study on seismic performance of reinforced concrete frame structure with infill wall reinforced by thin steel plate shear wall

REN Xiaopeng1, GAO Yongtao2,3

（1 Sichuan College of Architectural Technology, Deyang 618000, China；2 Environment & Civil Engineering Department, Chengdu University of Technology, Chengdu 610059, China； 3 State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu 610059, China)

Abstract:It is a simple and effective method to use thin steel plate shear wall to reinforce existing reinforced concrete frame structure. In order to study the seismic performance of reinforced concrete frame structures with infill walls reinforced with thin steel plate shear walls, five two-story, single-span reinforced concrete models with a scale ratio of 1∶3 were performed under horizontal loads through low cycle trial and error. The hysteretic performance, ductility and energy dissipation capacity of each model were analyzed. The results show that the horizontal bearing capacity, energy dissipation capacity and ductility of reinforced concrete frame structures with thin steel plate shear walls have been significantly improved under horizontal loads. Compared with the pure frame structure, the horizontal bearing capacity, energy dissipation capacity and ductility of the frame structure with complete infilled wall have been improved, but the ductility of the frame with portal infilled wall has not been improved. The bearing capacity and energy dissipation capacity of reinforced concrete frame structure with the infill wall reinforced by the thin steel plate shear wall have been improved, but the ductility has been reduced. The reason is that the shear force in the reinforced concrete frame column is significantly increased due to the action of the tensile field in the plane of the thin steel plate.

Keywords:existing building; reinforcement; reinforced concrete frame; thin steel plate shear wall; seismic performance; ductility; energy dissipation capacity

*國家科技支撐計(jì)劃課題（2015BAK09B01），國家創(chuàng)新研究群體科學(xué)基金(41521002)，地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國家重點(diǎn)實(shí)驗(yàn)室開放基金（SKLGP2019K019）。

作者簡介：任小朋，碩士，講師，Email:282985459@qq.com;通信作者：高涌濤，碩士，講師，Email:112634001@qq.com。