Field Investigation on Dynamic Behavior of Soil and Building Structures in the Near-Fault Region of the 1999 Chi-Chi, Taiwan Earthquake

1999年台湾集集地震近断层区土壤和建筑结构动力特性现场调查

• 批准号: 12574006
• 负责人: KAWASE Hiroshi
• 金额: $ 4.61万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12574006/
• 关键词: Site effects; Strong ground motions; Microtremors; Array observation; Chi-Chi, Taiwan earthquake; Path effects; Horizontal; Vertical ratio; Basin structure

The purpose of the project is to understand the damage mechanism of structures built in the near-fault regions based on the field investigation of the 1999 Chi-Chi, Taiwan, earthquake, in which we have invaluable strong ground motions observed by a recent network of high resolution seismometers. To this end we deployed temporarily an aftershock observation network and we also conducted microtremor observeation for both soil structures and building structures to understand their dynamic behavior. We first investigate observed strong motions based on the ground property of the sites in a near-fault region and estimate strong motions for sites without observed records.In the year 2000 we conducted for two weeks microtremor array and single-station survey in the Taichung area in order to delineate the S-wave velocity structure of the Taichung Basin. Microtremors in typical buildings in Taichung were also measured. We then performed nonlinear analysis of building models established for Japan to understand the damage potential of the observed strong motions in the near-fault region. It turns out that most of the strong motions observed in the near-fault area do not show strong damage potential except for two records, which show the same spectral levels in the intermediate period range (〜1 sec) with the records in Kobe. In the year 2001 we explored underground S-wave structures in the Taipei Basin, which may have much devastating damage if a big event happen in near future. Based on these information we are ready to evaluate damage potential of the structures in Taiwan and we can compare damage potential of buildings in Taiwan and Japan.

理解基于9个Chi-Chi，台湾，地震中建立的结构的损害机制，在这种情况下，我们在最新的高分辨率地震仪网络中观察到了宝贵的强大地面运动。部署了一个余震网络，我们对土壤结构和结构进行观察，以了解其动态行为。为了描绘泰古斯盆地的典型建筑物的S波速度。 - 在2001年，我们在台北盆地的地下S-Wave结构探索了两个记录，但有两个记录，如果不久的将来发生了很大的损害，则没有强大的损害。我们可以比较台湾和日本建筑物的破坏潜力。

项目成果

川瀬博,長戸健一郎: "台湾集集地震の震源域での観測強震動特性と構造物破壊能"2000年度地球惑星科学関連学会合同大会予稿集. (CD-ROM). 1-1 (2000)

Hiroshi Kawase、Kenichiro Nagato：“台湾集集地震震中区观测到的强地面运动特征和结构破坏潜力”2000年地球与行星科学相关学会联席会议论文集（CD-ROM）。 1-1 (2000)

佐藤智美, 川瀬博, 岩田知孝, 東貞成, 佐藤俊明: "台中盆地とその周辺での微動観測記録を用いた地下構造の推定"2000年度地球惑星科学関連学会合同大会予稿集(CD-ROM). 1-1 (2000)

Tomomi Sato、Hiroshi Kawase、Tomotaka Iwata、Sadanari Higashi、Toshiaki Sato：“利用台中盆地及其周围的微动观测记录估计地下结构”2000年地球与行星科学相关学会联席会议论文集（CD-ROM） 1-1 (2000)

包那仁満都拉, 川瀬博, 林康裕: "台湾・台中地域の建築物の振動特性"日本建築学会九州支部研究報告. 第41号-1. 1-4 (2002)

Mandu La Bao、Hiroshi Kawase、Yasuhiro Hayashi：“台湾台中地区建筑物的振动特性”，日本建筑学会九州分会研究报告第41-1号（2002年）。

Hiroshi KAWASE, Toshimi SATO, 2 others: "Exploration of Underground Structures in the Taichung Basin using Microtremors"Proceedings of the International Workshop on Annual Commemoration of Chi-Chi Earthquake. Vol.1. 210-221 (2000)

Hiroshi KAWASE、Toshimi SATO、另外 2 人：“利用微震探索台中盆地地下结构”集集地震年度纪念国际研讨会论文集。

Sadanari HIGASHI,Tomotaka IWATA,Hiroshi KAWASE, 他4名: "Array Aftershock Observation in the Taichung Basin"Proceedings of the International Workshop on Annual Commemoration of Chi-Chi Earthquake. Vol.1. 47-58 (2000)

Sadanari HIGASHI、Tomotaka IWATA、Hiroshi KAWASE 等 4 人：“台中盆地阵列余震观测”Chi-Chi 地震年度纪念研讨会论文集第 1 卷（2000 年）。