and findings of laboratory and field tests of a new generation of precast composite piles used for the first time in the construction of the Route 40 highway bridge over the Nottoway River in Virginia. The piles consisted of 24.6 in. (625 mm) diameter concrete-filled glass fiber reinforced polymer (GFRP) circular tubes, with a 0.21 in. (5.3 mm) wall thickness. The composite piles extended above...

Domestic rainwater tanks have become commonplace in Australia's urban landscape, and have become the physical embodiment of the changing relations between householders, water, and water authorities. The aim of our research was to understand these changing relations by examining how domestic rainwater tanks are inscribed with meanings and assumptions and thus mediate a relationship between house...

This study is dedicated to the development of a generalized confinement model applicable circular concrete columns confined by FRP full and partial arrangements. To simulate axial stress versus strain curve, new strength proposed addressing relation pressure during loading , whose calibration was based on an extensive set test results. By combining theoretical basis experimental observations, i...

Up to now solar heat has been stored mostly in well insulated water tanks. The volume of these tanks is as large as 3 m3 for relatively high solar fractions and up to 70 m3 for full solar coverage for a single-family house. Storage tanks of this size are expensive and space consuming. In new buildings, provisions can be made to accommodate large storage volumes but this type of system is not li...

In recent years, the Lamb wave analysis by the multi-channel analysis of surface waves (MASW) for concrete structures has been an effective nondestructive evaluation, such as the condition assessment and dimension identification by the elastic wave velocities and their reflections from boundaries. This study proposes an effective Lamb wave analysis by the practical application of MASW to concre...