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Evaluation of Seismic Fragility Analysis of the Mega Sub-Controlled Structural System (MSCSS)
Journal of Earthquake and Tsunami ( IF 1.5 ) Pub Date : 2020-05-31 , DOI: 10.1142/s1793431120500256
Mustapha Abdulhadi 1 , Zhang Xun’an 1 , Buqiao Fan 1 , Muhammad Moman 1
Affiliation  

The improved mega sub-controlled structure system (MSCSS) significantly reduced the building responses and improved the control effectiveness as compared to conventional mega substructure (MSS). However, since the MSCSS is designed to resist future earthquakes, the seismic risk assessment of the structure remains a significant concern. In this study, the seismic risk analysis of MSCSS is performed to probabilistically compare the building performance and its resistance to future earthquake damage at certain categories of limit states (LSs), which include category one (slight damage, moderate damage, and collapse damage LS) and category two (damage control and collapse prevention). The comparison is realized with the result of the traditional MSS. The probability of exceedance of the above damage LS for a particular ground motion (GM) intensity (i.e. Sa (T1,5%)) is evaluated to assess and compare the vulnerability of these buildings. The evaluation is done through developing fragility curves and relationships for MSCSS and MSS. The result showed that the improved MSCSS has strong seismic resistance ability and provides a better response from a nonlinear analysis result. Furthermore, the fragility curve of moderate and collapse damage LSs indicated that MSCSS requires higher GM intensity to reach a moderate and collapse damage LS than MSS. That means MSCSS is the most stable with a significant difference as compared to its counterpart. This is also true for the second category of LS, that is, damage control and collapse prevention. While at the slight damage LS, both the MSCSS and MSS require approximately the same GM intensity to reach a slight damage LS, as the difference is not significant.

中文翻译:

Mega Sub-Controlled Structural System (MSCSS) 地震脆性分析评估

与传统的巨型子结构(MSS)相比,改进的巨型子控制结构系统(MSCSS)显着降低了建筑物的响应并提高了控制效果。然而,由于 MSCSS 旨在抵御未来的地震,因此结构的地震风险评估仍然是一个重要问题。在本研究中,MSCSS 的地震风险分析用于概率性地比较建筑物在某些类别的极限状态 (LS) 下的性能及其对未来地震损伤的抵抗力,其中包括第一类(轻微损伤、中度损伤和倒塌损伤 LS)。 ) 和第二类(损坏控制和防倒塌)。与传统MSS的结果进行比较。对于特定地震动 (GM) 强度 (i. e. Sa (T1,5%)) 被评估以评估和比较这些建筑物的脆弱性。评估是通过开发 MSCSS 和 MSS 的脆弱性曲线和关系来完成的。结果表明,改进后的MSCSS抗震能力强,非线性分析结果响应更好。此外,中度和塌陷损伤 LSs 的脆性曲线表明,MSCSS 需要比 MSS 更高的 GM 强度才能达到中度和塌陷损伤 LS。这意味着 MSCSS 是最稳定的,与它的对应物相比存在显着差异。对于第二类 LS 也是如此,即损坏控制和防倒塌。虽然在轻微损伤 LS 下,MSCSS 和 MSS 都需要大致相同的 GM 强度才能达到轻微损伤 LS,
更新日期:2020-05-31
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