WIT Press

Model Test Verification On Structural Failure Modes Observed In Hyogo-ken Nanbu Earth- Quake 1995

Price

Free (open access)

Paper DOI

10.2495/ERES990091

Volume

41

Pages

10

Published

1999

Size

1,577 kb

Author(s)

Keiichiro Sonoda, Naotoshi Takada and Harutoshi Kobayashi

Abstract

Main concern is placed on the effect of vertical thrust from the bottom of footing on a viaduct pier column failure. Small scaled model tests were carried out using an underwater explosion method. In the method, a pulse-like vertical thrust was induced to the bottom face of footing by an explosion of a thin steel wire or a thin aluminum foil charged with high voltage in water. Specimens of RC pier models with a circular, a square or a rectangular column cross section were made by plaster or cement mortar with steel wire reinforcements. Furthermore, specimens of steel tubular pier models were also made of aluminum. Parametric tests were carried out concerning surcharge

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