性能增强再生混凝土框架中节点非线性分析  

Nonlinear analysis of performance enhanced recycled concrete frame joints

作　　者：王社良[1,2] 杜亚超[2] 余滨杉[2] 樊禹江[2] 陈先河 

机构地区：[1]西京学院土木工程学院,陕西西安710123 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《世界地震工程》2015年第2期28-33,共6页World Earthquake Engineering

基　　金：国家自然科学基金(51178388;51008245);陕西省教育厅重点重点实验室科研计划项目(11JS059;12JS055);陕西省重点实验室访问学者项目(12JS055)

摘　　要：再生混凝土作为一种再生资源近年来被广泛应用,在此基础上加入钢纤维和tank纤维制成性能增强再生混凝土,使结构的安全可靠性得到了进一步保证。采用有限元软件ABAQUS对3个混杂纤维掺量分别为0、0.5%、1%的再生混凝土框架中节点进行低周反复试验分析,得到了它们的滞回曲线和骨架曲线,并进行了对比分析。研究表明:相较于普通再生混凝土而言,性能增强再生混凝土框架中节点的耗能性能可提高20%、32%,抗开裂性能及极限承载力性能也更为优异,能够应用于实际工程之中。Recycled concrete as a renewable resource has beenr widely used in recent years, on the basis of adding steel fibers and tank fiber to make performance - enhanced recycled concrete, safety and reliability of the structure may be further guaranteed. In this paper, using the finite element software ABAQUS, the low - cyclic reversed loading tests analysis of three recycled concrete frame joints with different hybrid fiber content of 0, 0.5% , 1% were conducted and their hysteresis curves and skeleton curves, were obtained and contrast. The research show that compared to the ordinary recycled concrete, the energy dissipation capacity of the performance enhanced recycled concrete frame joints can increase 20% ,32% for different fiber mixed amount, cracking -resistant capacity and ul- timate bearing capacity are also more excellent, which can be applied in practical engineering.

关 键 词：性能增强再生混凝土 框架节点 ABAQUS 耗能性能 开裂荷载 极限承载力 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]