IDENTIFICATION OF DYNAMIC CHARACTERISTICS OF AN EXISTING ARCH DAM BASED ON AMBIENT VIBRATION OBSERVATION AND THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS
-
- NAKAMURA Masataka
- 日本大学 理工学部土木工学科
-
- SHIOJIRI Hiroo
- 日本大学 理工学部土木工学科
-
- UESHIMA Teruyuki
- 宮城大学 食産業学部環境システム学科
-
- ARIGA Yoshiaki
- 弘前大学 大学院理工学研究科
-
- OMINATO Shusaku
- 日本大学大学院 理工学研究科土木工学専攻
Bibliographic Information
- Other Title
-
- 常時微動観測と三次元有限要素解析に基づく実在アーチダムの振動特性把握
Description
Earthquake and ambient vibration monitoring of the crest of an aged arch dam was carried out. Long-term continuous monitoring was conducted to determine the change in natural frequency over time by installing accelerometers at two locations on the crest. On the other hand, short-term ambient vibration monitoring was also conducted to evaluate the dynamic characteristics of the entire arch dam system, such as the natural frequencies, modal dampings and mode shapes, by installing an array of sensors. This paper presents the Young's modulus of the dam body concrete and foundational bedrock with a small amplitude, based on data from the short-term monitoring, as well as three-dimensional finite element analysis. The results would enable further investigation of the relationship among the natural frequency, reservoir level and body temperature of the dam based on data from the long-term monitoring as a bench mark.
Journal
-
- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
-
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 69 (4), I_742-I_749, 2013
Japan Society of Civil Engineers
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282680326111360
-
- NII Article ID
- 130004556984
-
- ISSN
- 21854653
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed