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（合肥工業(yè)大學(xué)土木與水利工程學(xué)院， 合肥 230009）

［摘要］采用基礎(chǔ)隔震或在結(jié)構(gòu)中布置黏滯阻尼器均可以有效減輕鋼筋混凝土框架結(jié)構(gòu)在地震中產(chǎn)生的震害。以一棟7層鋼筋混凝土框架為研究對(duì)象，選取與場(chǎng)地條件相匹配的地震波作為激勵(lì)，通過(guò)試算確定隔震構(gòu)件和黏滯阻尼器的型號(hào)、布置，使這兩種結(jié)構(gòu)在多遇地震作用下位移減少量相同。采用SAP2000進(jìn)行建模，計(jì)算了結(jié)構(gòu)在罕遇地震下的非線性動(dòng)力響應(yīng)，并對(duì)比了結(jié)構(gòu)的層間位移角、樓層加速度和塑性鉸分布情況。分析結(jié)果表明：采用基礎(chǔ)隔震的結(jié)構(gòu)的抗震性能要好于設(shè)置黏滯阻尼器的結(jié)構(gòu)。

［關(guān)鍵詞］基礎(chǔ)隔震； 黏滯阻尼器； 時(shí)程分析； 塑性鉸

中圖分類號(hào)：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)24-0058-05

Comparative study on shock absorption performance of base isolation and viscous damper

Chen Daozhen, Huang Dongdong

(College of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract:The earthquake damage of reinforced concrete frame structure can be effectively reduced by using the base isolation or the viscous dampers in the structure. A seven-story reinforced concrete frame structure was adopted as an example，a series of seismic waves which match the site conditions were selected as incentives. Through the trial calculation, the type and arrangement of the isolation member and the viscous damper were determined, so that the displacement reduction of the two structures is the same under the action of multiple earthquakes.  SAP2000 was used to establish structureal  model, the nonlinear dynamic response of the structure under rare earthquakes was calculated, and the interlayer displacement angle, floor acceleration and plastic hinge distribution of the structure were compared. The analysis results show that the seismic performance of the structure with base isolation is better than that of the viscous damper.

Keywords:base isolation; viscous damper; time\|history analysis; plastic hinge

作者簡(jiǎn)介：陳道政，博士，教授，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：cdztai@163.com。