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（1 廣州大學(xué)土木工程學(xué)院， 廣州 510006; 2 香港華藝設(shè)計(jì)顧問（深圳）有限公司， 深圳 518057）
［摘要］筒體剪力墻是框架-核心筒的第一道抗震防線，確定墻體的損傷分布是抗震性能化設(shè)計(jì)的重要組成部分。以某型鋼混凝土框架-混凝土雙筒結(jié)構(gòu)為例，采用YJK軟件進(jìn)行整體結(jié)構(gòu)小震與中震反應(yīng)譜性能設(shè)計(jì)，采用ABAQUS軟件進(jìn)行大震及超大震的動力時程分析。分析結(jié)果表明：小震作用時，筒體墻肢承擔(dān)超過90%的樓層地震剪力；中震作用時，底部局部墻肢出現(xiàn)受拉；大震作用下，受高階振型影響，結(jié)構(gòu)中上部墻肢損傷較底部的大；超大震作用下，結(jié)構(gòu)墻肢損傷演變過程表明中上部墻肢先出現(xiàn)損傷，后底部墻肢開始出現(xiàn)破壞，當(dāng)周圍墻肢出現(xiàn)損壞時結(jié)構(gòu)呈倒塌破壞狀態(tài)，其中墻肢出現(xiàn)的破壞部位同中震結(jié)果是一致的，可見不同地震水準(zhǔn)間反映的結(jié)構(gòu)薄弱部位還是能起到相互驗(yàn)證的作用，結(jié)果也較為可信。分析結(jié)果還表明針對薄弱部位采取的加強(qiáng)措施是有效、可行的。
［關(guān)鍵詞］不同地震水準(zhǔn)； 墻肢損傷分布； 倒塌破壞； 薄弱部位
中圖分類號：TU318-2， TU352文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)24-0031-06
Study on distribution of weak parts of a tower walls under different earthquake levels
Lin Chaowei1,2, Zhou Yun1, Wang Xingfa2, Xia Xiyao2, Zhou Xiaoguang2, Wu Yunze2
(1 College of Civil Engineering, Guangzhou University, Guangzhou 510006, China; 2 Hong Kong Huayi Design Consultant (Shenzhen) Co., Ltd., Shenzhen 518057, China)
Abstract:The tube shear wall is the first seismic fortification line of the frame corewall, and it is an important part of the performance-based seismic design to determine the damage distribution of the wall. A steel reinforced concrete frame-concrete double tube structure was taken as an example, and the YJK software were used to conduct structural overall design under frequent earthquake and response spectrum performance design under moderate earthquake, and the ABAQUS software was used to conduct dynamic time-history analysis under rare and super-rare earthquakes. The analysis results show that under frequent earthquake, tube walls bear more than 90% of floor seismic shear forces; tension appears in local wall at the bottom of shear wall under moderate earthquake; under the influence of high modes, wall damage in the middle and upper parts of structure is larger than that at the bottom of the wall under rare earthquake; under super-rare earthquake, damage evolution process of structural wall indicates that there is damage in the upper and middle parts of walls before damage appears in bottom walls, and the structure features a collapse failure state when surrounding walls are damaged, where failure location in walls are identical to that under moderate earthquake. It shows that structural weak parts reflected by different earthquake levels can verify each other, and the results are believable. The analysis results also show that the strengthening measures adopted for the weak parts are effective and feasible.
Keywords:different earthquake level; shear wall damage distribution; collapse failure; weak part
作者簡介：林超偉，博士研究生，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：wei65125036@163.com。
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