Abstract: Because of the high traffic volumes during the normal workday on major urban transportation corridors, many construction operations are now being conducted during the nighttime. Nighttime work requirements have in turn ...

Abstract: Guided wave mixing leverages mutual wave interactions to provide sensitive diagnostics of material degradation in plates and pipes and an early warning upon which maintenance decisions can be based. In some cases, the ...

Abstract: Discontinuously reinforced aluminum (DRA) is currently used where design considerations include specific stiffness, tailorable coefficient of thermal expansion, or wear resistance. Plastic deformation ...

Abstract: Tilt-up concrete wall construction is an alternative to cast-in-place, precast, or masonry methods of constructing building walls. The process involves more than just a cast and lift operation. Detailed planning, preparation, ...

Abstract: The competitive and negotiated bidding processes are not new. Competitive or hard bidding has been and is currently more prevalent in the commercial construction industry. However, in the last 20 years, evolutionary changes ...

Abstract: Few contractors in the southwestern United States ever consider using a tower crane on their projects. This reluctance can be attributed to a mobile crane construction culture. A contractor in New Mexico, Bradbury Stamm, ...

Abstract: A generalized threshold function for viscoplastic materials, which can also serve as a yield function in rate-independent plasticity, is suggested for materials that exhibit a strength differential ...

Abstract: Dragline productin estimates, as derived from published tables, are compared to actual field production. Several equipment texts present dragline production estimating tables. The base data source for most of these tables ...