工程可靠性与随机力学国际联合研究中心

2024 年第 10 期 (总第 84 期) 学术报告

工程力学研究中心第 35 期学术报告

文远讲坛 291 期

报告主题

TOPIC

长周期地震动对建筑物的影响及应对措施

Impact of Long-period Earthquake Ground Motions on Buildings and Countermeasures

报告人

SPEAKER

Dr. Tatsuya Azuhata 小豆畑达哉

日本建筑研究所地震学和地震工程国际研究中心高级研究员

ISO地震作用工作组组长

报告时间

TIME

2024 年 9 月 19 日 (周四) 上午 8:30-9:30

报告地点

VENUE

同济大学土木工程学院 A305

主持人

CHAIR

陈建兵教授、彭勇波教授

联系人：任宇东

报告内容

Abstract

It has become clear that long-period ground motions occur in the alluvial plains following large plate boundary earthquakes. This problem of long-period earthquake ground motions became apparent in Japan with the 2003 Tokachi-oki earthquake. Sloshing occurred in oil tanks about 250 km from the epicenter, causing the floating roof of the oil tank to sink. It caused a fire two days later. Since then, researchers have been intensively studying methods for predicting long-period earthquake ground motions and their effects on structures. And in the 2011 Tohoku earthquake, seismic observation records of super high-rise buildings caused by such long-period earthquake ground motions were also obtained.

In this seminar, we will introduce a method of creating design ground motions that simulate long-period earthquake ground motions studied in Japan, as well as structural experiments that examine their effects on structures and countermeasures based on the results of these experiments.

Long-period earthquake ground motions seriously affect high-rise buildings and seismically isolated buildings with long natural periods on alluvial plains. It is not a problem unique to Japan but one common worldwide. This seminar aims to provide one solution to the long-period earthquake ground motion problem. 

报告人简介

Speaker Bio

Dr. Tatsuya Azuhata is a seasoned expert in structural and earthquake engineering with a distinguished career spanning over three decades. He is currently a Senior Fellow at the International Institute for Seismology and Earthquake Engineering (IISEE), part of the Building Research Institute (BRI) in Japan. He has held prominent roles, including Director of Structural Engineering at BRI and Division Head at the National Institute for Land and Infrastructure Management. Dr. Azuhata is also the leader of the ISO Seismic Action on Structures group. With a Ph.D. in Engineering from Chiba University, he has contributed significantly to the field through numerous publications on seismic response, earthquake damage assessment, and structural behavior under extreme conditions.