建筑结构学报2017，Vol.38Issue(4)：62-69,8.DOI:10.14006/j.jzjgxb.2017.04.008
分散型钢混凝土组合柱抗震性能试验研究
Experimental study on seismic performance of isolated steel reinforced concrete composite columns
邓飞 1肖从真 2陈涛 1赵作周1
作者信息
- 1. 中国建筑科学研究院,北京100013
- 2. 清华大学土木工程系,北京100084
- 折叠
摘要
Abstract
To investigate the seismic performance of isolated steel reinforced concrete composite (ISRCC) columns,and to analyze the composite action between the concrete and steel sections,four ISRCC columns were tested under cyclic loading with eccentricity ratios of 10％ and 15％,respectively.Compared to traditional quasi-static tests,the vertical load and horizontal load were applied together in accordance with the predetermined loading path.The bearing capacity,ductility,failure mode,crack distribution,and stiffness reduction were carefully examined.Test results indicate that all ISRCC columns fail in small eccentricity patterns,and the integrity is desirable.With eccentricity ratios less than 15％,the plane section assumptions can be validated for the tested specimens before yielding loads are reached.Actual flexural capacities of the ISRCC columns corresponds with the calculated values given by ACI 318-2014,EN 1994-1-1 and YB 9082-2006,suggesting that current code provisions for designing SRC columns are applicable in predicting the capacity of ISRCC columns subjected to combined compression and bending with eccentricity ratio not greater than 15％.The specimens demonstrate good deformation capacities with ultimate drift ratios ranging from 1/88-1/65,which can meet the specified value given by the Chinese code for frame-core structures under high intensity earthquake.关键词
型钢混凝土组合柱/分散型钢/拟静力试验/抗震性能/组合作用Key words
steel reinforced concrete composite column/isolated steel/quasi-static test/seismic performance/composite action分类
建筑与水利引用本文复制引用
邓飞,肖从真,陈涛,赵作周..分散型钢混凝土组合柱抗震性能试验研究[J].建筑结构学报,2017,38(4):62-69,8.
