以2018花蓮地震震害建物探討耐震初評方法之有效性

Verification of Preliminary Seismic Evaluation Methods Using the Damaged Building Data of 2018 Hualien Earthquake

杜怡萱(Yi-Hsuan Tu) ； 葉桐(Tung Yeh)

《結構工程》 35卷2期 (2020/06) Pp. 43-64

https://doi.org/10.6849/SE.202006_35(2).0003

摘要

本研究蒐集2018年0206花蓮地震中12棟不同震害程度之建物資料，應用於三種國內現行耐震初步評估方法，以探討其有效性及合理性。三種耐震初評方法包括：鋼筋混凝土建築物耐震能力初步評估（PSERCB）、國家地震工程研究中心（NCREE）校舍耐震初評及街屋耐震快評；評估結果顯示，三種初評方法皆能大略篩選出耐震能力有疑慮之建物，各初評方法之評估結果與震害等級之相對關係亦大致符合，但皆呈現較保守之趨勢。各建物之三種初評結果大多相近，僅有二棟建物之NCREE街屋快評結果與另外兩種方法出現差異，且皆顯示PSERCB及NCREE校舍初評較NCREE街屋快評更為保守。

關鍵字

震害 ； 耐震評估 ； 初步評估 ； 鋼筋混凝土

並列摘要

Data of thirteen buildings that damaged differently in the 2018 Hualien earthquake were collected and used to verify three preliminary seismic assessment methods. The three methods are all widely used in Taiwan, including the Preliminary Seismic Evalureliminary seismic evaluation of RC Buildings (PSERCB), the Preliminary Seismic Evaluation Method for Typical Building Structures of Primary and Secondary Schools by NCREE, and the Preliminary Seismic Evaluation Method for Typical Street-houses by NCREE. Comparison between the evaluation results and the observed damage states of the thirteen buildings showed that all three methods can identify the buildings that were heavily damaged. All three methods can sort the buildings in an approximately reasonable order. However, all three methods tended to give conservative results. The results from different methods for the same building were usually close. Only two buildings obtained different results between the NCREE method for street-houses and the other two methods. The PSERCB and the NCREE method for school buildings showed more conservative results than the NCREE method for street-houses in the two buildings.

並列關鍵字

earthquake damage ； seismic evaluation ； preliminary evaluation ； reinforced concrete