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(1 華南理工大學(xué)亞熱帶建筑科學(xué)國家重點(diǎn)實(shí)驗(yàn)室, 廣州 510640; 2 華南理工大學(xué)土木與交通學(xué)院, 廣州 510641)

摘要: 以廣州某典型地鐵上蓋全框支轉(zhuǎn)換項(xiàng)目為基礎(chǔ),參考現(xiàn)行規(guī)范中對部分框支剪力墻結(jié)構(gòu)的抗震等級和軸壓比限值的要求,設(shè)計(jì) 9 個(gè)全框支剪力墻結(jié)構(gòu). 通過基于構(gòu)件變形的抗震性能評估方法,研究該結(jié)構(gòu)體系在大震作用下的性能,并給出全框支剪力墻結(jié)構(gòu)的抗震設(shè)計(jì)的合理化建議. 結(jié)果表明:9 個(gè)全框支剪力墻結(jié)構(gòu)均能滿足“小震不壞,大震不倒”的抗震設(shè)防要求以及“強(qiáng)轉(zhuǎn)換弱上部”的抗震設(shè)計(jì)思想;在強(qiáng)震作用下,當(dāng)轉(zhuǎn)換層上部剪力墻屈服時(shí),轉(zhuǎn)換層及轉(zhuǎn)換層以下部分不屈服,則全框支剪力墻結(jié)構(gòu)的安全性與純剪力墻結(jié)構(gòu)一樣.

關(guān)鍵詞: 全框支剪力墻結(jié)構(gòu); 彈塑性分析; 構(gòu)件變形; 性能狀態(tài); 抗震性能

中圖分類號:TU375,TU352. 11 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)06-0076-07

DOI:10. 19701 / j. jzjg. 20201688

Analysis on seismic performance of fully frame-supported shear wall structure based on component deformation

JI Jing1,2, FU Hao2, HAN Xiaolei1,2, LI Biao2, WU Zinan2

(1 State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640,China; 2 School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China)

Abstract: Based on the conversion project of fully frame-supported upper cover of a typical subway in Guangzhou, 9 fullyframe-supported shear wall structures were designed by referring to the requirements of seismic grade and axial compressionratio limit of partial frame-supported shear wall structures in current codes. Through the seismic performance evaluationmethod based on component deformation, the performance of the structural system under the action of large earthquakes wasstudied, and the reasonable suggestions for seismic design of fully frame-supported shear wall structures were given. Theresult shows that the 9 fully frame-supported shear wall structures can meet the seismic fortification requirements of “ nodamege under minor earthquake, no collapse under large earthquake” and the seismic design concept of “ strong transferand weak upper structure”. Under the action of strong earthquake, when the upper shear wall of the transfer layer yields,the transfer layer and the part below the transfer layer will not yield, then the safety of fully frame-supported shear wallstructure is the same as that of pure shear wall structure.

Keywords:fully frame-supported shear wall structure; elastoplastic analysis; component deformation; performance status;seismic performance

∗廣東省自然科學(xué)基金項(xiàng)目(2020A1515010739),廣州市科技計(jì)劃(201904010221).

第一作者:季靜,博士,教授,主要從事建筑結(jié)構(gòu)抗震研究,Email: cvjingji@ scut. edu. cn.

[引用本文] 季靜,付豪,韓小雷,等. 基于構(gòu)件變形的全框支剪力墻結(jié)構(gòu)抗震性能分析[ J]. 建筑結(jié)構(gòu),2023,53(6):76-82. JI Jing,FU Hao,HAN Xiaolei,et al. Analysis on seismic performance of fully frame-supported shear wallstructure based on component deformation[J]. Building Structure,2023,53(6):76-82.