Open Access
表5
钢管约束钢筋混凝土柱足尺模型算例参数
| 对象 | 序号 | 钢管屈服强度fy/MPa | 混凝土立方体抗压强度fcu/MPa | 轴压比n | 钢管壁厚t/mm | 套箍系数 | 备注 |
|---|---|---|---|---|---|---|---|
| 1.普通钢筋混凝土柱 | sch1~10 | 345 | 40 | 0.1~1.0 | - | - | |
| 2.钢管约束钢筋混凝土 | sch11~20 | 345 | 40 | 0.1~1.0 | 3 | 0.28 | 对比有无钢管的影响 |
| sch21~40 | 345 | 40 | 0.2, 0.5, 0.8, 1.0 | 4, 5, 6, 8, 10 | 0.38, 0.47, 0.57, 0.76, 0.95 | 对比钢管厚度的影响 | |
| sch41~64 | 235 | 40 | 0.2, 0.5, 0.8、1.0 | 3, 4, 5, 6, 8, 10 | 0.19, 0.26, 0.32, 0.39, 0.52, 0.65 | 统计数据, 提出抗震设计方法和塑性铰计算方法 | |
| sch65~88 | 345 | 60 | 0.2, 0.5, 0.8, 1.0 | 3, 4, 5, 6, 8, 10 | 0.18, 0.23, 0.29, 0.35, 0.47, 0.59 | ||
| sch89~112 | 345 | 80 | 0.2, 0.5, 0.8, 1.0 | 3, 4, 5, 6, 8, 10 | 0.13, 0.17, 0.21, 0.25, 0.34, 0.42 | ||
| sch113~136 | 420 | 80 | 0.2, 0.5, 0.8, 1.0 | 3, 4, 5, 6, 8, 10 | 0.15, 0.20, 0.26, 0.31, 0.41, 0.52 |
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