In this study, the scope of CFRP cables in cable-stayed bridges is studied by establishing a numerical model of a 1400-m span of the same. The mechanical properties and characteristics of CFRP stay cables and of a cable-stayed bridge with CFRP cables are here subjected to comprehensive analysis. The anomalies in the damping properties of free vibration, nonlinear parametric vibration and wind f...

Earth reinforcing techniques have become useful and economical to solve problems related to difficult grounds and provide satisfactory foundation performance. In this context, this paper uses radial basis function neural network (RBFNN) for predicting the bearing pressure of strip footing on reinforced granular bed overlying weak soil. The inputs for the neural network models included plate wid...

National research Institute for Earth science and Disaster prevention is constructing the world’s largest 3-D full-scale shake table which is nicknamed as “E-Defense”. In order to resolve several subjects for the utilization of E-Defense, NIED investigates the themes as follows, 1) Establishment of utilization and wide area network systems, 2) Development of 3-D ground motion database and a num...

We demonstrate highly efficient diode-pumped single-frequency fiber laser with 35% slope efficiency and 50mW output power operating near 2μm, which generated from a 2-cm long piece of highly Tm-doped germanate glass fiber pumped at 800nm. ©2007 Optical Society of America OCIS code: (060.2320) Fiber optics amplifiers and oscillators; (140.3570) Lasers, single-mode; (140.5680) Rare earth and tran...