The recent developments in measurement technology have led to the installation of efficient monitoring systems on many bridges and other structures all over the world. Nowadays, more and more structures have been built and instrumented with sensors. However, calibration and installation of sensors remain challenging tasks. In this paper, we use a case study, Adige Bridge, in order to present a ...

Rooted in structural dynamics theory, three approximate procedures for estimating seismic demands for bridges crossing fault-rupture zones and deforming into their inelastic range are presented: modal pushover analysis �MPA�, linear dynamic analysis, and linear static analysis. These procedures estimate the total seismic demand by superposing peak values of quasi-static and dynamic parts. The p...

A literature review on the subject of ambient vibration testing is presented, and a review of a recent study to illustrate state-of-the-art in the application of the ambient vibration method. Reports on testing of full-scale structures by the ambient vibration method began to appear regularly around 1970, with about 3/4 of all contributions devoted to the experiments in buildings, dams, chimney...

Abstract Wire rope is an element often used in transportation infrastructure and systems such as bridges, elevators, ropeways, funiculars so on. Generally, wire ropes require a high level of safety because they suspend heavy important components roadways cages cabins ropeways funiculars. In addition to dead loads like roadways, are subjected dynamic caused by earthquakes, wind moving cars, etc....

introduction: the aim of this study was to evaluate the effect of bridge orientation in casting machine on castability and quality of base metal castings. methods: three groups of patterns with different direction and lengths in casting machine were casted and then studied qualitatively and quantitatively using mean and standard deviation in table of frequency. results: larger nodules and poros...

With the development of science and technology, process urbanization is accelerating, many structures are developing towards trend large-scale. The emergence large-scale such as aircraft, buildings bridges provides a more comfortable convenient living space for human beings, but there also some mechanical problems in design manufacturing these structures. For example, due to influence size, win...

In this article, wind-induced vibration response of Vincent Thomas Bridge, a suspension bridge located in San Pedro near LosAngeles, California, is simulated using a detailed three-dimensional finite element model of the bridge and a state-of-the-art stochastic wind excitation model. Based on the simulated wind-induced vibration data, the modal parameters (natural frequencies, damping ratios, a...

This paper demonstrates active control of the attitude and vibration of a exible structure using the Global Positioning System (GPS). Measurements of the carrier phase of the GPS signal at several antennas are used to estimate the deformation and orientation of the structure. This distributed measurement capability, combined with excellent zero-frequency performance, makes the GPS sensor an exc...