重庆大学学报2017，Vol.40Issue(2)：91-100,10.DOI:10.11835/j.issn.1000-582X.2017.02.012
等截面钢管混凝土格构柱骨架曲线的统一算法
A uniform calculation method of the skeleton curve of equal sectional concrete filled steel tube columns
摘要
Abstract
The calculation methods of skeleton curve of equal sectional CFST (concrete filled steel tube) columns with flat or inclined lacing tubes were introduced and analyzed.It’s found the seismic behavior of equal sectional CFST columns has generality,no matter their lacing tubes are flat or inclined.To find out a uniform calculation method of skeleton curve of equal sectional CFST columns on the base of hysteretic model of CFST single tube column,we explored the calculation methods of elastic stiffness,horizontal peak load,peak load displacement and fall-period stiffness,and then carried out a verification experiment with OpenSEES program by taking the laced column pier of Ganhaizi bridge as an example.Research results indicate that the calculated values of the new calculation method are coincident well with the test and the numerical results.Finally the uniform method which can be adapted to engineering application is provided,and it can provide references for the calculation theory and relevant criteria of CFST structures.关键词
钢管混凝土格构柱/等截面/骨架曲线/统一算法/抗震性能/规程Key words
concrete filled steel tube column/equal section/skeleton curve/uniform calculation method/seismic performance/criterion分类
建筑与水利引用本文复制引用
欧智菁,陈盛富..等截面钢管混凝土格构柱骨架曲线的统一算法[J].重庆大学学报,2017,40(2):91-100,10.基金项目
国家自然科学基金项目（51408128）；福建省高校新世纪优秀人才支持计划项目（GY-Z15108）。Supported by the National Natural Science Foundation of China （51408128）and Program for New Century Excellent Talents in the Universities of Fujian Province（GY-Z15108）． （）
