地表スラブ工法を用いた高架橋基礎杭の耐震補強(<特集>杭基礎の健全性評価と補強技術)

概要

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In the case we reuse the existing viaducts, we must improve them satisfied with the present seismic-design code. These cases need existing viaduct piles seismic-retrofitted, because the weight of improved viaducts increases. The construction of seismic-retrofitting for piles usually needs the setting new piles, footings, and structures connecting them with existing structures. As a result, these improvement constructions have a tendency to be expensive and long term by huge excavation and construction of new members. This paper introduces the new seismic-retrofitting-method for existing viaduct piles without huge excavation and new footings, and reports results of inspection experiments and examples.
2013-08-01