框架結(jié)構(gòu)填充抗震墻或帶框鋼支撐抗震加固振動(dòng)臺(tái)試驗(yàn)研究*
史鐵花1, 陸加國(guó)1, 程紹革1, 石海亮1, 吳禮華1, 李守恒2, 欒文芬3
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（1 中國(guó)建筑科學(xué)研究院，北京 100013；2 烏魯木齊建筑設(shè)計(jì)研究院有限責(zé)任公司，烏魯木齊 830092；3 新疆維吾爾自治區(qū)烏魯木齊建委，烏魯木齊 830002)
［摘要］增設(shè)抗震墻或鋼支撐是框架結(jié)構(gòu)加固中比較有效的加固方法，不但能有效減輕原有框架結(jié)構(gòu)受到的側(cè)向力，而且可以顯著減小結(jié)構(gòu)變形，保證結(jié)構(gòu)的安全。但我國(guó)相關(guān)標(biāo)準(zhǔn)中規(guī)定增設(shè)抗震墻必須設(shè)基礎(chǔ)并連續(xù)伸至所需增加部位，施工復(fù)雜且造價(jià)較高。通過1/5縮尺多層框架局部填充抗震墻和帶框鋼支撐加固模型的振動(dòng)臺(tái)試驗(yàn)研究，對(duì)模型的破壞現(xiàn)象、動(dòng)力特性以及動(dòng)力反應(yīng)結(jié)果等進(jìn)行了分析。試驗(yàn)結(jié)果表明：采用局部填充適當(dāng)剛度的抗震墻和帶框鋼支撐加固框架結(jié)構(gòu)后，相應(yīng)樓層的水平抗震承載能力得到明顯提高，從而論證了框架結(jié)構(gòu)通過該方法加固是可行合理的。［關(guān)鍵詞］框架結(jié)構(gòu); 抗震加固; 填充抗震墻; 帶框鋼支撐; 振動(dòng)臺(tái)試驗(yàn)中圖分類號(hào)：TU375.4 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)14-0001-07
Shaking table test study on seismic strengthening of frame using infill seismic walls or steel bracesShi Tiehua1, Lu Jiaguo1, Cheng Shaoge1, Shi Hailiang1, Wu Lihua1, Li Shouheng2, Luan Wenfen3(1 China Academy of Building Research, Beijing 100013, China; 2 Urumqi Architectural Design Institute，Urumqi 830092, China; 3 Urumqi Municipal Commission of Housing and Urban－rural Development, Urumqi 830002, China)Abstract:Seismic strengthening of frame structures using infill seismic walls or steel braces, which is an effective method, can reduce the lateral force of original frame structure effectively and significantly reduce structure deformation to ensure the structure safety. However, it demands that seismic walls should set foundations and the walls should continuously stretch from the foundation to the required position according to relevant China standards, which makes construction complicate and expensive. The shaking table test of a multistory frame structure strengthening by local infill seismic walls and steel braced frame was carried out with scale ratio of 1/5. The model failure phenomenon, dynamic characteristics and dynamic response results were analyzed. Results show that horizontal seismic bearing capacities of relevant layers are improved apparently by using above seismic strengthening method of local infill appropriate stiffness of seismic walls and steel braced frame, so the strengthening method is effective and reasonable.Keywords:frame structure; seismic strengthening; infill seismic wall; steel braced frame; shaking table test
*科技支疆項(xiàng)目（201291112）。作者簡(jiǎn)介：史鐵花，碩士，研究員，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：cabrsth@126.com。
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