Terrestrial laser scanning broadens its application areas in civil engineering, and claims even more attention in engineering survey. The paper shows the results of a laboratory test of a laser scanner. The laboratory test involved complex 3D accuracy analysis, reflectivity investigation of different colors and materials used at construction sites and observation of reflection angles. Instead o...

The software specification acts as a bridge between customers, architects, software developers and testers. If information gets lost or distorted when building this bridge, the wrong system will be built or the system will not be built in time and budget⎯or both! Standards and recommendations give advice on how to structure specifications or check software-engineering artefacts with reviews or ...

Any attempt to explain software engineering to a lay audience soon falls back on analogy: building software is like building a bridge, a car, a television set. A large part of the established practice within software engineering is also based on this premise. However, the analogy is false in some important ways, and herein originate many of the problems that have bugged the software industry si...

the ambient vibration measurement is a kind of output data-only dynamic testing where the traffics and winds are used as agents responsible for natural or environmental excitation. therefore an experimental modal analysis procedure for ambient vibration testing needs to base itself on output-only data. the modal analysis involving output-only measurements present a challenge that requires the u...

This paper addresses the mixed integer reliability redundancy allocation problems to determine simultaneous allocation of optimal reliability and redundancy level of components based on three objective goals. System engineering principles suggest that the best design is the design that maximizes the system operational effectiveness and at the same time minimizes the total cost of ownership (TCO...

This research was supported by a National Science Foundation Postdoctoral Fellowship for Science, Mathematics, Engineering, and Technology Education (1998) and by the So utheastern University and College Coalition for Engineering Education (SUCCEED), under a cooperative agreement with the National Science Foundation. 1 Matthew Ohland, University of Florida, Chemical Engineering—SUCCEED, Box 116...

China is currently undergoing rapid urbanization, and highway bridge construction projects are increasing in both quantity scope. They one of the important infrastructures urban construction. The requirements for engineering relatively high, but due to influence various factors, problems bound occur, which affects aesthetics functionality bridge. Therefore, it necessary strengthen analysis comm...

This paper presents the problem definition for the first generation of benchmark structural control problems for cable-stayed bridges. The benchmark problem is based on a cable-stayed bridge that is currently under construction in Cape Girardeau, Missouri, USA. Construction of the bridge is expected to be completed in 2003. The goal of this study is to provide a testbed for the development of s...

The threat to safety of aging bridges has been recognized as a critical concern to the general public due to the poor condition of many bridges in the U.S. Currently, the bridge inspection is conducted manually, and it is not efficient to identify bridge condition deterioration in order to facilitate implementation of appropriate maintenance or rehabilitation procedures. In this paper, we repor...