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（1 哈爾濱理工大學(xué)建筑工程學(xué)院， 哈爾濱 150080； 2 上海建科院上海市工程結(jié)構(gòu)安全重點(diǎn)實(shí)驗(yàn)室，上海 200032;  3 哈爾濱工業(yè)大學(xué)結(jié)構(gòu)工程災(zāi)變與控制教育部重點(diǎn)實(shí)驗(yàn)室， 哈爾濱 150090)

［摘要］某18層鋼筋混凝土框架-剪力墻結(jié)構(gòu)，根據(jù)使用功能要求，需在1層增設(shè)夾層?？紤]將夾層荷載傳遞給剪力墻及后置鋼柱。然而，施工不當(dāng)致使剪力墻開(kāi)洞。在剪力墻上開(kāi)洞不僅截?cái)嗔思袅Φ目v向鋼筋和水平鋼筋，同時(shí)削弱了剪力墻的截面尺寸，導(dǎo)致剪力墻不滿足軸壓比限值和平面外穩(wěn)定性的要求，存在安全隱患。針對(duì)此問(wèn)題，提出了剪力墻洞口內(nèi)置帶肋鋼套筒，焊接剪力墻洞口截?cái)噤摻罴岸纯诜舛碌姆桨?，使封堵后剪力墻結(jié)構(gòu)安全性不低于原設(shè)計(jì)標(biāo)準(zhǔn)，加固方法可供同類加固改造工程參考。

［關(guān)鍵詞］高層建筑； 剪力墻； 封洞； 加固； 設(shè)計(jì)分析

中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)12-0075-04

Analysis and design on strengthening of reinforced concrete shear walls with plugging openings in a high-rise building

Rong Qin1,2, Cao Shaojun3, Hou Xiaomeng3

(1 College of Civil Engineering and Architecture, Harbin University of Science and Technology, Harbin 150080, China; 2 Shanghai Key Laboratory of Engineering Structure Safety, SRIBS, Shanghai 200032, China;  3 Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090， China)

Abstract:There is an eighteen-layer reinforced concrete frame-shear wall structure. Based on functional requirement, an interlayer needs to be added in the middle of first floor. The load in the middle of first floor is considered to transfer to shear wall and post steel columns. However, incorrect constructions lead to adding openings in shear walls. Adding openings in shear walls not only cuts off the longitudinal reinforcement and horizontal reinforcement of the shear wall, but also weakens the size of the shear wall, which may cause the limit value of axial compression ratio and the out-of-plane stability of the shear wall are not satisfied, and may results in a big potential safety hazard. To solve these problems, a construction scheme of building ribbed steel sleeve in the openings of shear walls, welding the truncated steel bars in the openings, and plugging the shear wall openings was proposed. After strengthening, the original design standard requirements of this frame-shear wall structure were satisfied. This strengthening approach could be served as reference for similar reinforcement transformation projects.

Keywords:high-rise building; shear wall; plugging opening; strengthening; design and analysis

*國(guó)家自然科學(xué)基金項(xiàng)目資助（51408167），上海市工程結(jié)構(gòu)安全重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題資助（2014-KF07），黑龍江省自然科學(xué)基金重點(diǎn)項(xiàng)目（ZD2015010）。

作者簡(jiǎn)介：戎芹，博士，講師，Email:hitrongqin@126.com。