【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。更多还原

【Abstract】 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.更多还原