- 摘 要
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(筑博設(shè)計股份有限公司, 深圳 518035)
[摘要]以光明新區(qū)公共服務(wù)平臺工程為例,詳細(xì)探討了基于PERFORM-3D的彈塑性模型的建立及動力分析中一些常見問題的解決方法;選取了3組地震波,考慮三向地震作用分析結(jié)構(gòu)的彈塑性時程反應(yīng),得到結(jié)構(gòu)在罕遇地震作用下的變形、內(nèi)力和損傷情況。分析結(jié)果表明:結(jié)構(gòu)分析模型準(zhǔn)確可靠;少量鋼筋混凝土梁進(jìn)入彎曲塑性狀態(tài),但未達(dá)到彎曲破壞狀態(tài),連梁未發(fā)生剪切破壞;部分剪力墻混凝土拉、壓應(yīng)力較大,少量延性屈服;轉(zhuǎn)換構(gòu)件均處于彈性;層間位移角小于1/100;結(jié)構(gòu)滿足罕遇地震作用下性能水準(zhǔn)的要求。
[關(guān)鍵詞]大跨拱式轉(zhuǎn)換; 性能水準(zhǔn); 彈塑性時程分析
中圖分類號:TU398.7 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2014)08-0077-06
Performance analysis of special structural system of Guangming New District public service platform under the rare earthquake
Wang Jinwen
(Zhubo Architectural & Engineering Design Co., Ltd., Shenzhen 518035, China)
Abstract: Taking Guangming New District public service platform as example, a series of common problems and solutions about the establishment of PERFORM-3D based elasto-plastic model and dynamic analysis were studied in detail. Three groups of earthquake waves were selected. Three-direction rare earthquake induced deformation, deformation, internal forces and damage status were obtained by analyzing structural elasto-plastic time-history response. Results show that: analysis model is accurate and reliable; a few reinforced concrete beams reach bending plastic status but do not reach bending failure status, and no coupling beam reaches shearing failure status; tension and compression stress of concrete of some shear wall is large, and a few of them ductile yield; transfer members are in elastic status; inter-story displacement angle is less than 1/100; the structure meets the requirements of performance levels under the rare earthquake.
Keywords: large-span arch-transfer structure; performance level; elasto-plastic time-history analysis
作者簡介:王錦文,博士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email:steven_jinwen@126.com。
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