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Full-scale shaking table tests on a substandard RC building repaired and strengthened with post-tensioned metal straps

机译:在不合格的RC建筑物上进行全面的振动台测试,使用后张拉金属带进行修复和加固

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摘要

The effectiveness of a novel Post-Tensioned Metal Strapping (PTMS) technique at enhancing the seismic behavior of a substandard RC building was investigated through full-scale, shake-table tests during the EU-funded project BANDIT. The building had inadequate reinforcement detailing in columns and joints to replicate old construction practices. After the bare building was initially damaged significantly, it was repaired and strengthened with PTMS to perform additional seismic tests. The PTMS technique improved considerably the seismic performance of the tested building. While the bare building experienced critical damage at an earthquake of PGA = 0.15 g, the PTMS-strengthened building sustained a PGA = 0.35 g earthquake without compromising stability.
机译:在欧盟资助的BANDIT项目中,通过全面的振动台测试,研究了一种新型的张紧式金属捆扎(PTMS)技术增强不合格RC建筑的抗震性能的有效性。该建筑物的柱子和接缝处的钢筋细节不足,无法照搬旧的建筑惯例。裸露的建筑物最初受到严重损坏后,使用PTMS对其进行了修复和加固,以执行其他抗震测试。 PTMS技术大大提高了测试建筑物的抗震性能。裸露的建筑物在PG​​A = 0.15 g地震中遭受了严重破坏,而经过PTMS加固的建筑物在不损害稳定性的情况下承受了PGA = 0.35 g的地震。

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