Development of the highly-durable and long spanned stone arch bridge by revaluation of the traditionally stone arch techniques

通过抗剪试验和抗压强度试验，揭示了用于石桥的石料的材料特性。其次，我们开发了一种离散有限元分析方法，使用接触模型和岩石摩擦模型从剪切试验。通过大量跨高比分别为0.35和0.2的石拱模型的静、动载试验，将试验结果与理论分析结果进行对比，阐明了石桥的受力特点。实现了高耐久性、大跨度石拱桥的发展。

The material properties of stone which is used in stone bridges revealed by carrying out shear tests and compressive strength tests. Next, we have developed a discrete finite element analysis method using a contact model and stone friction model obtained from the shear test. A large number of stone arch test models with span-rise ratio 0.35 and 0.2 subjected to static and dynamic loading test were carried out and, behavior characteristics of the stone bridge were clarified by comparison of test results and analytical ones. The development of the highly-durable and long spanned stone arch bridge was achieved.