石アーチ模型による静的挙動とアーチ輪石の割れのメカニズム

• Published in: 構造工学論文集 Ａ Vol. 59A; pp. 26 - 36
• Main Authors: 藤田, 千尋, 古賀, 圭一郎, 小倉, 孟, 山尾, 敏孝
• Format: Journal Article
• Language: Japanese
• Published: 公益社団法人 土木学会 2013; Japan Society of Civil Engineers
• Subjects: arch stone; damaged stone; material properties; stone arch model; アーチ輪石; 損傷石材; 材料特性; 石アーチ模型
• ISSN: 1881-820X
• DOI: 10.11532/structcivil.59A.26

Damaged stone bridge with cracks, gaps and falling stones have become to increase in recently years. In order to propose the soundness evaluation method for damaged stone arch bridges, the development of the static analytical method of stone arch model is investigated theoretically and experimentally. Numerical analysis for stone arch model is carried out by the discrete finite element method with the friction and the contact models for adjacent stones. The material properties for bridge stones were obtained from material tests. The cracking mechanism of arch stones of stone arch model was clarified by pressure measurement sheets experimentally. The validity and the efficiency of the proposed discrete finite element method were shown by comparing the numerical results and the experimental ones.