提出一种新型钢筋缀件钢格构柱作为抵抗水平侧向力构件应用于民用建筑中。为研究此钢筋缀件钢格构柱的抗震性能，通过对钢筋缀件尺寸和角度优选后，确定其具体细部尺寸和角度，制作了足尺试件。通过拟静力往复加载试验研究该钢筋缀件钢格构柱，根据试验获得的滞回曲线对该格构柱的滞回特征、骨架曲线、刚度退化曲线、耗能能力进行研究。试验结果表明：该格构柱在层间角1/250时承载力未出现明显下降；该格构柱具有较好的稳定性和抵抗水平侧向力的能力；使用有限元分析软件ABAQUS进行数值模拟得到该格构柱滞回特征，并将数值模拟结果与试验结果进行对比，模拟结果与试验结果基本吻合。
Abstract
A steel lattice column with lace bar was proposed to be a lateral force component applied in civil buildings. To investigate its aseismic performance, a full-scale specimen was made and tested under quasi-static cyclic loading. The sizes and angle of the specimen were determined after optimization. Its hysteretic characteristics, skeleton curve, stiffness degradation curve and energy dissipation capacity were analyzed according to the measured hysteretic curves. The test results indicated that the column’s load-bearing capacity does not obviously drop when the story drift angle reaches 1/250; the column has better stability and energy dissipation capacity; comparing hysteretic characteristics of the column simulated using the finite element software ABAQUS with those of tests, both of them agree well.
关键词
钢筋缀件 /
抗震性能 /
拟静力试验 /
数值模拟 /
滞回曲线
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Key words
lace bar /
aseismic behavior /
quasi-static test /
numerical simulation /
hysteretic curve
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