«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

37卷

期数:

2020年03期

页码:

28-36

栏目:

出版日期:

2020-05-30

文章信息/Info

Title:

Precast Component Division and Seismic Damage Analysis of PC Isolated Frame

文章编号:

1673-2049(2020)03-0028-09

作者:

杜永峰^1,2,池佩红¹

(1. 兰州理工大学 防震减灾研究所,甘肃 兰州 730050; 2. 兰州理工大学 甘肃省减震隔震国际合作研究基地,甘肃 兰州 730050)

Author(s):

DU Yong-feng^1,2, CHI Pei-hong¹

(1. Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou 730050, Gansu, China; 2. International Research Base on Seismic Mitigation and Isolation of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, Gansu, China)

关键词:

PC隔震框架;  预制构件拆分;  抗震性能;  层间位移角;  结构损伤

Keywords:

PC isolated frame;  precast component division;  seismic performance;  inter-story drift angle;  structural damage

分类号:

TU352.1

DOI:

10.19815/j.jace.2019.05014

文献标志码:

A

摘要:

为研究不同预制单元拆分方式对装配式混凝土(PC)隔震框架抗震性能的影响,考虑预制构件节点拼接位置的不同,选取了3种PC隔震框架预制构件的拆分方式,即梁柱节点与梁柱整体预制的拆分方式1、多层柱与节点整体预制的拆分方式2以及传统梁柱节点区后浇的拆分方式3。利用有限元软件ABAQUS分别建立了采用3种不同拆分方式的5层装配式隔震框架PCIF-1,PCIF-2,PCIF-3及对应的现浇隔震框架RCIF,并对地震作用下结构变形、层间位移角和结构损伤耗能等进行了对比分析。结果表明:相较现浇结构,装配式结构刚度较弱,罕遇地震作用下,装配式隔震框架层间位移和隔震支座变形增大,上部结构损伤更为严重,隔震层损伤略微增加; 不同拆分方式下,装配式隔震框架损伤程度和位置分布不同,现浇结构集中于底层柱端,装配式结构连接界面处较为薄弱,应力较大; 采用拆分方式1,2的装配式隔震框架PCIF-1和PCIF-2均满足抗震需求,受力性能良好; 综合考虑结构受力和施工方便,建议采用拆分方式1对装配式隔震框架进行预制构件拆分。

Abstract:

In order to study the effect of different precast member division methods on seismic performance of precast concrete(PC)isolation frame, three precast component division modes of PC isolation frame were selected considering different joint connect positions. Division mode 1 was integral prefabrication of beam-column joints, division mode 2 was integral prefabrication of multi-story columns and joints, division mode 3 was traditional post-poured connection of beam-column joints. By using the finite element software ABAQUS,PCIF-1, PCIF-2,PCIF-3 and the corresponding cast-in-place concrete isolated frame RCIF of five-story assembled isolation frame with three different division modes were established respectively, the structural deformation, inter-story drift angle and damage energy dissipation under earthquake were compared and analyzed. The results show that compared with cast-in-place concrete isolated frame,the stiffness of PC isolated frame is weaker. Under the rare earthquake, the inter-story displacement and bearing deformation of assembled isolation frame increase, the damage of superstructure is more serious, and the damage of isolation layer increases slightly. Under different division modes, the damage situation and location distribution of PC isolated frames are different. The cast-in-place structure is concentrated in the bottom column ends, and the connection interface of the assembled structure is relatively weak and the stress is relatively large. The PC isolated frames PCIF-1 and PCIF-2 can satisfy the seismic requirements and have good mechanical performance. Considering of the stress of the structure and the convenience of construction, it is suggested to use division mode 1 to split the precast component of the PC isolated frame.

参考文献/References:

[1] 吴 刚,冯德成.装配式混凝土框架节点基本性能研究进展[J].建筑结构学报,2018,39(2):1-16.
WU Gang,FENG De-cheng.Research Progress on Fundamental Performance of Precast Concrete Frame Beam-to-column Connections[J].Journal of Building Structures,2018,39(2):1-16.
[2]杨 辉,郭正兴,尹 航,等.高强底筋锚入式预制装配混凝土框架梁柱节点抗震试验研究[J].东南大学学报:自然科学版,2018,48(6):979-986.
YANG Hui,GUO Zheng-xing,YIN Hang,et al.Experimental Study on Seismic Behavior of Precast Concrete Beam-to-column Connections with High-strength Hooked Beam Bottom Bars[J].Journal of Southeast University:Natural Science Edition,2018,48(6):979-986.
[3]ERTAS O,OZDEN S,OZTURAN T.Ductile Connections in Precast Concrete Moment Resisting Frames[J].PCI Journal,2006,51(3):66-76.
[4]IVERSON J K,HAWKINS N M.Performance of Precast/Prestressed Concrete Building Structures During Northridge Earthquake[J].PCI Journal,1994,39(2):38-55.
[5]PARK R.Seismic Design and Construction of Precast Concrete Buildings in New Zealand[J].PCI Journal,2002,47(5):60-75.
[6]KORKMAZ H H,TANKUT T.Performance of a Precast Concrete Beam-to-beam Connection Subject to Reversed Cyclic Loading[J].Engineering Structures,2005,27(9):1392-1407.
[7]GHOSH S K,CLELAND N.Observations from the February 27,2010,Earthquake in Chile[J].PCI Journal,2012,57(1):52-75.
[8]KHOO J H,LI B,YIP W K.Tests on Precast Concrete Frames with Connections Constructed Away from Column Faces[J].ACI Structural Journal,2006,103(1):18-27.
[9]RESTREPO J I,PARK R,BUCHANAN A H.Tests on Connections of Earthquake Resisting Precast Reinforced Concrete Perimeter Frames of Buildings[J].PCI Journal,1995,40(4):44-61.
[10]刘菲菲,于德湖,张纪刚.装配式混凝土框架结构新型节点设计及分析[J].青岛理工大学学报,2015,36(1):118-124.
LIU Fei-fei,YU De-hu,ZHANG Ji-gang.Design and Analysis of Prefabricated Concrete Frame Structure' New Joints[J].Journal of Qingdao Technological University,2015,36(1):118-124.
[11]杜永峰,祝青鑫,李万润,等.基于监测数据的隔震结构模态参数异变分析[J].振动、测试与诊断,2018,38(3):517-525.
DU Yong-feng,ZHU Qing-xin,LI Wan-run,et al.Analysis of Modal Parameters Variation of Isolated Structure Based on Monitoring Data[J].Journal of Vibration,Measurement & Diagnosis,2018,38(3):517-525.
[12]谭 平,李 洋,匡 珍,等.装配式隔震结构中隔震节点抗震性能研究[J].土木工程学报,2015,48(2):10-17.
TAN Ping,LI Yang,KUANG Zhen,et al.Seismic Behavior of Isolation Connection in Assembled Seismic Isolation Structure[J].China Civil Engineering Journal,2015,48(2):10-17.
[13]王 维,李爱群,贾 洪,等.预制混凝土剪力墙隔震结构振动台试验研究[J].建筑结构学报,2015,36(6):35-43.
WANG Wei,LI Ai-qun,JIA Hong,et al.Shaking Table Test of Precast Concrete Shear Wall Isolation Structure[J].Journal of Building Structures,2015,36(6):35-43.
[14]JGJ 1—2014,装配式混凝土结构技术规程[S].
JGJ 1—2014,Technical Specification for Precast Concrete Structures[S].
[15]潘 鹏,曲 哲.PQ-Fiber使用手册[EB/OL].2015-04-20.http://www.luxinzheng.net/download/PQFiber/Manual.htm.
PAN Peng,QU Zhe.PQ-Fiber Manual[EB/OL].2015-04-20.http://www.luxinzheng.net/download/PQFiber/Manual.htm.
[16]方登甲.考虑施工缝对RC基础隔震框架地震损伤分析及试验研究[D].兰州:兰州理工大学,2018.
FANG Deng-jia.Seismic Damage Analysis of RC Base Isolation Frame with Construction Joint and Experimental Study[D].Lanzhou:Lanzhou University of Technology,2018.
[17]杜永峰,王光环.基础隔震钢筋混凝土框架结构的性能水准划分与量化分析[J].工程抗震与加固改造,2013,35(6):87-92,97.
DU Yong-feng,WANG Guang-huan.Performance Levels Classification and Performance Index Quantitative Analysis of Base-isolated RC Frame[J].Earthquake Resistant Engineering and Retrofitting,2013,35(6):87-92,97.
[18]杜东升,王曙光,刘伟庆,等.隔震结构损伤性能与可靠度研究[J].振动与冲击,2016,35(1):222-227.
DU Dong-sheng,WANG Shu-guang,LIU Wei-qing,et al.Reliability-based Damage Performance of Base-isolated Structures[J].Journal of Vibration and Shock,2016,35(1):222-227.
?

相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2019-08-07
基金项目:国家自然科学基金项目(51778276); 甘肃省重点研发计划项目(18YF1FA067)
作者简介:杜永峰(1962-),男,甘肃庆阳人,教授,博士研究生导师,工学博士,E-mail:dooyf@lut.cn。

常用功能

更新日期/Last Update: 2020-06-08