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Full-Scale Shaking Table Tests on a Substandard RC Building Repaired and Strengthened with Post-Tensioned Metal Straps

机译:用后张紧的金属带修复和加固的不合格RC建筑物的全面振动台测试

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摘要

The effectiveness of a novel Post-Tensioned Metal Strapping (PTMS) technique at enhancing the seismic behaviour 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. Whilst the bare building experienced critical damage at an earthquake of PGA=0.15g, the PTMS-strengthened building sustained a PGA=0.35g 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,研究了一种新的后张紧金属带(PTMS)技术在增强不合格RC建筑抗震性能方面的有效性。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 = 0.15g地震中遭受了严重破坏,而PTMS加固的建筑物在不影响稳定性的情况下承受了PGA = 0.35g的地震。

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