预制预应力混凝土装配整体式框架抗震性能研究
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摘要
在介绍一种预制预应力混凝土装配整体式框架结构体系的基本形式及其结构特点的基础上,通过对三个不同键槽长度的预制混凝土框架中节点的低周反复荷载试验研究,并利用面向对象的开放式计算程序OpenS-ees对一榀两跨三层框架结构进行静力弹塑性分析,研究了这种框架结构体系的抗震性能。试验和理论分析结果表明:框架中节点的滞回曲线丰满,节点耗能能力较强;框架结构的梁铰耗能机制提高了结构整体的耗能能力;经过合理设计的预制框架结构体系具有良好的抗震能力,完全能够满足抗震设防的要求。
The basic concept and characteristic of framed structure comprised of precast prestressed concrete components were firstly introduced,and the seismic behavior of joints of this system was investigated under low cyclic and reciprocal loading.The specimens were three joint members with different length of service hole.The pushover analysis of a two-span,three-floor frame structure was conducted by structural analysis software OpenSees to estimate the seismic performance.The experiment and analysis results indicate that the joints have full hysteretic loops and better energy dissipation capacity.And the energy dissipation mechanism with plastic hinges at beam ends increases the integral energy dissipation capacity.The seismic performance can satisfy the demand if they are well designed and constructied.
The basic concept and characteristic of framed structure comprised of precast prestressed concrete components were firstly introduced,and the seismic behavior of joints of this system was investigated under low cyclic and reciprocal loading.The specimens were three joint members with different length of service hole.The pushover analysis of a two-span,three-floor frame structure was conducted by structural analysis software OpenSees to estimate the seismic performance.The experiment and analysis results indicate that the joints have full hysteretic loops and better energy dissipation capacity.And the energy dissipation mechanism with plastic hinges at beam ends increases the integral energy dissipation capacity.The seismic performance can satisfy the demand if they are well designed and constructied.
引文
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[11]孙巍巍,孟少平,吴京.多跨超长预应力混凝土框架结构抗震能力研究[J].工业建筑,2006,36(5):23-26.SUN Weiwei,MENG Shaoping,WU Jing.Research onthe seismic capability of prestressed concrete framestructures with large longitude length[J].Industrial Con-struction,2006,36(5):23-26.
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[13]周文军.预制预应力混凝土装配整体式房屋结构的应用[J].彭城职业大学学报,2004,19(2):6-8.ZHOU Wenjun.Application of ready-made pre-strength concrete fitting in integral building framework[J].Journal of Pengcheng Vocational University,2004,19(2):6-8.
[14]刘亚非,庞涛,顾西平.预制预应力混凝土装配整体式房屋结构的施工实践[J].江苏建筑,2002,3:10-14.LIUYafei,PANG Tao,GU Xiping.Construction Prac-tice of fabricated precast prestressed integral concretebuilding structure[J].Jiangsu Construction,2002,3:10-14.
[15]SILVIA M,FRANK M,GREGORY L F.Introduction toopensees[M].Berkeley:University of California,2006.
[2]MENG S P,CHONG X.Research on seismic performanceof precast prestressed concrete frame[C].The Interna-tional Symposium on Innovation&Sustainability of Struc-tures in Civil Engineering.Nanjing,2005.
[3]吕西林,郭子雄,王亚勇.RC框架梁柱组合件抗震性能试验研究[J].建筑结构学报,2001,22(1):2-7.LU Xilin,GUO Zixiong,WANG Yayong.Experimentalstudy on seismic behavior of beam-column subassem-blages in RC frame[J].Journal of Building Structures,2001,22(1):2-7.
[4]胡庆昌.建筑结构抗震设计与研究[M].北京:中国建筑工业社.1999:144-157.
[5]PAYLAY P,PARK R,PRIESTLEY M.Reinforced con-crete beam-column joints under seismic actions[J].ACI Journal,1978(11/12):255-278.
[6]朱洪进.预制预应力混凝土装配整体式框架结构(世构体系)节点试验研究[D].南京:东南大学,2006.
[7]叶燎原,潘文.结构静力弹塑性分析(push-over)的原理和计算实例[J].建筑结构学报,2000,21(1):37-43.YE Liaoyuan,PAN Wen.The principle of nonlinear stat-ic analysis and numerical examples[J].Journal of Build-ing Structures,2000,21(1):37-43.
[8]尹华伟,汪梦甫,周锡元.结构静力弹塑性方法的研究与改进[J].工程力学,2003,20(4):45-49.YIN Huawei,WANG Menxi,ZHOU Xiyuan.Study andimprovement on structural static pushover analysis method[J].Engineering Mechanics,2003,20(4):45-49.
[9]杨溥,李英民,王亚勇,等.结构静力弹塑性分析(push-over)方法的改进[J].建筑结构学报,2000,21(1):44-50.YANG Pu,LI Yingmin,WANG Yayong,et al.Astudy onimprovement push-over analysis[J].Journal of BuildingStructure,2000,21(1):44-50.
[10]种迅,孟少平.钢筋混凝土框架结构全过程pushover分析[J].地震工程与工程振动,2005,25(1):38-42.CHONG Xun,MENG Shaoping.Complete pushover a-nalysis of RC frame structures[J].Earthquake Engineer-ing and Engineering Vibration,2005,25(1):38-42.
[11]孙巍巍,孟少平,吴京.多跨超长预应力混凝土框架结构抗震能力研究[J].工业建筑,2006,36(5):23-26.SUN Weiwei,MENG Shaoping,WU Jing.Research onthe seismic capability of prestressed concrete framestructures with large longitude length[J].Industrial Con-struction,2006,36(5):23-26.
[12]EROL K,SASHI K K.Assessment of current nonlinearstatic procedures for seismic evaluation of buildings[J].Engineering structures,2007,29:305-316.
[13]周文军.预制预应力混凝土装配整体式房屋结构的应用[J].彭城职业大学学报,2004,19(2):6-8.ZHOU Wenjun.Application of ready-made pre-strength concrete fitting in integral building framework[J].Journal of Pengcheng Vocational University,2004,19(2):6-8.
[14]刘亚非,庞涛,顾西平.预制预应力混凝土装配整体式房屋结构的施工实践[J].江苏建筑,2002,3:10-14.LIUYafei,PANG Tao,GU Xiping.Construction Prac-tice of fabricated precast prestressed integral concretebuilding structure[J].Jiangsu Construction,2002,3:10-14.
[15]SILVIA M,FRANK M,GREGORY L F.Introduction toopensees[M].Berkeley:University of California,2006.
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