摘要
简要介绍了国内外钢管混凝土格构柱墩的工程应用概况,总结了钢管混凝土格构柱抗震性能的试验研究、有限元分析、恢复力模型计算方法等研究现状及其成果,分析了各主要参数的影响规律,并以干海子大桥的四肢钢管混凝土格构墩工程为例,建立变截面钢管混凝土格构柱有限元模型,分析、比较了柱肢坡度、柱高、轴压比等参数对构件滞回性能影响规律。最后,对该专项研究提出若干建议。
The application and development prospects of concrete- filled steel tubular（ CFST） laced columns are briefly introduced. Present research status and achievements of seismic performance on CFST laced columns,including test research,finite element analysis and calculation methods of Restoring force model are summarized. The influence rules of main parameters are analyzed. With the engineering background of four- tube CFST laced columns of Ganhaizi bridge,the finite element models of variable cross- sectional CFST laced columns are build,the effect of Longitudinal element slope,longitudinal spacing of column limbs and axial compression ratio on the hysteretic behavior of CFST laced columns are investigated. Finally,some suggestions on this individualized studies are put forward.
出处
《福建建筑》
2016年第2期48-52,共5页
Fujian Architecture & Construction
基金
国家自然科学基金项目(51408128)
关键词
钢管混凝土
格构柱
抗震性能
延性
Concrete-filled steel tubular（CFST）
Laced columns
Seismic performance
Ductility
