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>A NEW PILE-HEAD DEVICE FOR DECREASING CONSTRUCTION COSTS AND INCREASING THE SEISMIC PERFORMANCE OF PILE FOUNDATIONS, AND ITS APPLICATION TO STRUCTURES
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A NEW PILE-HEAD DEVICE FOR DECREASING CONSTRUCTION COSTS AND INCREASING THE SEISMIC PERFORMANCE OF PILE FOUNDATIONS, AND ITS APPLICATION TO STRUCTURES
A new pile-head device for decreasing construction costs and increasing the seismicperformance of pile foundations is introduced and its effectiveness is demonstrated throughnumerical studies. The device is installed at pile-heads for reducing the bending moment atthe pile-heads. This reduction of bending moment enables the cross-sectional dimensions ofpiles and continuous capping beams to be reduced, because these dimensions are commonlydetermined based on the maximum bending moment at the pile-heads. Reduction of bendingmoment at pile-heads can prevent seismic damage to the piles causing by severe bendingmoments as observed in Kobe, Japan, during the 1995 Great Hanshin Earthquake.
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