- 摘 要
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（同濟大學(xué)建筑工程系， 上海 200092）
［摘要］為研究一個2跨2開間的6層預(yù)制再生混凝土框架的地震反應(yīng)，基于有限元軟件SAP2000，采用弱化后澆節(jié)點截面面積的方法分別建立了節(jié)點截面面積為實際節(jié)點截面面積1，0.8，0.75，0.7倍的4個三維框架模型。在8度設(shè)防地震水準(zhǔn)（0.370g，SHW）作用下對各框架模型進行非線性時程分析，并對非線性時程分析計算值與振動臺試驗值進行了對比分析。結(jié)果表明，此類預(yù)制再生混凝土框架的后澆節(jié)點截面面積弱化系數(shù)在0.75～0.8之間選取較為合適。
［關(guān)鍵詞］再生混凝土; 預(yù)制框架; 后澆節(jié)點; 截面面積弱化系數(shù); 地震反應(yīng)分析
中圖分類號：TU528.79，TU317.1 文獻標(biāo)識碼：A 文章編號：1002-848X(2014)13-0029-05
Nonlinear seismic response analysis on the precast recycled aggregate concrete frame based on SAP2000
Ding Tao, Cao Ming, Wang Shaohua
(Department of Building Engineering, Tongji Universtity, Shanghai 200092, China)
Abstract: In order to study the seismic response of a two-bay, two-span and six-story precast recycled aggregate concrete frame, the method of weakening section area of the post-cast joint was adopted to set up four three-dimensional frame models based on SAP2000 finite element software, in which the ratios of joint section area to the actual joint area were 1, 0.8, 0.75 and 0.7 respectively. Comparison analysis of all the frame models were taken between the nonlinear time-history calculation values and simulating shaking table test values under earthquake intensity level 8 (0.370g, SHW). Results show that the section area weakening coefficient of the post-cast joint is suitable around 0.75～0.8 for this kind of precast recycled aggregate concrete frame structure.
Keywords: recycled aggregate concrete; precast frame; post-cast joint; section area weakening coefficient; seismic response analysis
*上海市科委項目（14231201300）。
作者簡介：丁陶，碩士研究生，Email：1130461@#edu.cn。
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