|Table of Contents|

Inter-story Isolation of Light Wood-concrete Hybrid Structure Based on Multi-performance Indicators(PDF)

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

Issue:
2020年01期
Page:
102-110
Research Field:
Publishing date:

Info

Title:
Inter-story Isolation of Light Wood-concrete Hybrid Structure Based on Multi-performance Indicators
Author(s):
WANG Xue-liang1; 2;  WANG Xiu-xin1; 2;  WEI Kai-rui1; 2;  XU Qian-gang1; 2
Technology, Wuhan 430070, Hubei, China)
Keywords:
wood-concrete hybrid structure;  parameter optimization;  three-lumped mass model;  wooden isolation device;  multi-performance indicator
PACS:
TU366.2
DOI:
10.19815/j.jace.2019.05050
Abstract:
The wood-concrete hybrid structure had obvious whiplash effect under earthquake. In order to reduce the seismic damage and inherit the configuration of ancient bracket, a new type of wooden isolation device was developed and installed between the upper wood and the lower concrete structure to form the inter-story isolation system. Through the static load and quasistatic test of the isolation device, the performance parameters and energy consumption capacity were determined. The wooden isolation device was applied to the wood-concrete hybrid structure of the upper wood and lower concrete for the layer separation, and the multi-lumped mass model was used for seismic response analysis to verify the isolation effect. Based on the three performance indicators of relative lateral displacement of superstructure, acceleration of substructure and shear weight ratio of substructure, the three-lumped mass model was established and the parameter optimization design was carried out to determine the key parameter range of the wooden isolation layer. The results show that the isolation device has sufficient vertical bearing capacity and energy dissipation capacity, and it has potential engineering application value when it is applied to the wood-conerete hybrid structures. When the device is applied to the wood-concrete hybrid structures under the action of frequent earthquakes, the damping effect is not obvious. Under the action of rare earthquakes, the isolation bearing produces sufficient sliding and enters the secondary deformation stage, with full hysteretic curve and the sufficient energy consumption. The parameter optimization design based on multi-performance indicators can effectively control the seismic response of the wood-concrete hybrid structure. When the optimal frequency ratio of the isolation layer is from 0.2 to 0.4, and the optimal damping ratio is determined according to the different frequency ratio from 0.15 to 0.4, good isolation effect can be achieved.

References:

[1] GREEN M C,KARSH J E.The Case for Tall Wood Buildings[R].British Columbia:The Canadian Wood Council,2012.
[2]ISODA H,KAWAI N,KOSHIHARA M.Case Study of Combination Ways of Timber and Steel in Japanese Buildings[C]//WCTE.Proceedings of the 11th World Conference on Timber Engineering.Riva Del Garda:WCTE,2010:1-6.
[3]熊海贝,倪 春,吕西林,等.三层轻木-混凝土混合结构足尺模型模拟地震振动台试验研究[J].地震工程与工程振动,2008,28(1):91-98.
XIONG Hai-bei,NI Chun,LU Xi-lin,et al.Shaking Table Tests on 3-storey Wood-concrete Hybrid Structure[J].Earthquake Engineering and Engineering Vibration,2008,28(1):91-98.
[4]贾国成.轻木-混凝土混合结构模拟地震模拟振动台试验研究[D].上海:同济大学,2007.
JIA Guo-cheng.Experimental Study on Seismic Behavior of Wood-concrete Hybrid Structure[D].Shanghai:Tongji University,2007.
[5]华 晶.轻型木-混凝土混合结构整体有限元分析[D].上海:同济大学,2008.
HUA Jing.Global Analysis of Wood-concrete Hybrid Structure by the Finite Element Method[D].Shanghai:Tongji University,2008.
[6]何敏娟,李英俏.刚度比对轻木-混凝土上下混合结构地震作用响应的影响[J].特种结构,2013,30(2):54-58.
HE Min-juan,LI Ying-qiao.Effect of Stiffness Ratio on Seismic Response of Light Wood-concrete Upper and Lower Hybrid Structure[J].Special Structures,2013,30(2):54-58.
[7]何敏娟,罗文浩.轻木-混凝土上下混合结构的抗震设计方法[J].建筑结构学报,2016,37(4):87-92.
HE Min-juan,LUO Wen-hao.Seismic Design Method of Light Wood Frame-concrete Hybrid Constructions[J].Journal of Building Structures,2016,37(4):87-92.
[8]谭 柱.新型木制隔震装置的设计及应用研究[D].武汉:武汉理工大学,2017.
TAN Zhu.Design and Application Research of a New Type of Timber Vibration Isolation Device[D].Wuhan:Wuhan University of Technology,2017.
[9]魏国安.古建筑木结构斗拱的力学性能及ANSYS分析[D].西安:西安建筑科技大学,2007.
WEI Guo-an.Mechanical Behavior and ANSYS Analysis of Dougong in Chinese Ancient Timber Building[D].Xi'an:Xi'an University of Architecture and Technology,2007.
[10]赵鸿铁,薛建阳,隋 龑,等.中国古建筑结构及其抗震:试验、理论及加固方法[M].北京:科学出版社,2012.
ZHAO Hong-tie,XUE Jian-yang,SUI Yan,et al.Chinese Ancient Building Structure and Its Earthquake Resistance:Experiment,Theory and Reinforcement Method[M].Beijing:Science Press,2012.
[11]BOUC R.Forced Vibration of Mechanical Systems with Hysteresis[R].Prague:ICNO,1967.
[12]WEN Y K.Method for Random Vibration of Hysteretic System[J].Journal of the Engineering Mechanics Division,1976,102(2):249-263.
[13]何敏娟,周楠楠,孙永良.都江堰向峨小学轻型木结构设计与施工[J].施工技术,2010,39(3):88-92.
HE Min-juan,ZHOU Nan-nan,SUN Yong-liang.Design and Construction of Light Wood-framed Structure in Xiang'e Primary School in Dujiangyan[J].Construction Technology,2010,39(3):88-92.
[14]GB 50011—2010,建筑抗震设计规范[S].
GB 50011—2010,Code for Seismic Design of Buildings[S].
[15]CASH J R,KARP A H.A Variable Order Runge-Kutta Method for Initial Value Problems with Rapidly Varying Right-hand Sides[J].ACM Transactions on Mathematical Software,1990,16(3):201-222.
[16]樊长林,张善元,张文芳.隔震体系基于双质点模型的参数分析比较[J].太原理工大学学报,2008,39(3):320-323,330.
FAN Chang-lin,ZHANG Shan-yuan,ZHANG Wen-fang.Research on Working Mechanism and Impact Parameters of Three Types of Isolation Structure[J].Journal of Taiyuan University of Technology,2008,39(3):320-323,330.
[17]KELLY J M.Earthquake-resistant Design with Rubber[M].London:Springer,1997.
[18]克拉夫 R W,彭津 J.结构动力学[M].王光远,译.北京:科学出版社,1981.
KRAFT R W,PENZIEN J.Structural Dynamics[M].Translated by WANG Guang-yuan.Beijing:Science Press,1981.
[19]宋 晓,谭 平,周福霖,等.层间隔震结构参数分析与减震性能研究[J].地震工程与工程振动,2018,38(5):41-49.
SONG Xiao,TAN Ping,ZHOU Fu-lin,et al.Analysis of Parameters and Aseismic Properties of Inter-story Isolation System[J].Earthquake Engineering and Engineering Dynamics,2018,38(5):41-49.
[20]周福霖,张 颖,谭 平.层间隔震体系的理论研究[J].土木工程学报,2009,42(8):1-8.
ZHOU Fu-lin,ZHANG Ying,TAN Ping.Theoretical Study of Story Isolation System[J].China Civil Engineering Journal,2009,42(8):1-8.
[21]张 颖,谭 平,周福霖.层间隔震结构的能量平衡[J].应用力学学报,2010,27(1):204-208.
ZHANG Ying,TAN Ping,ZHOU Fu-lin.An Analysis Method of Story Isolation Structures Base on Energy Balance[J].Chinese Journal of Applied Mechanics,2010,27(1):204-208.

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Last Update: 2020-01-13