ABSTRACT
Figures IV.70–IV.73 depict records of acceleration observed at different locations on the surrounding ground and in the structure (bridge) during an earthquake to provide an understanding of ground and structure vibrations. Figure IV.70 shows the records obtained for a bridge, its pier and the surrounding ground; Figure IV.71 depicts the response spectrum of the Japan Nuclear Power Research Institute’s dynamic test furnace (JPDR) set up on reclaimed land; Figure IV.72 shows the records obtained for a underground tank and its surrounding ground. Finally, Fig. IV.73 depicts the records obtained for artificially hardened ground, which is harder than the surrounding area. Acceleration records observed at the bridge pier and the surrounding area [<xref ref-type="bibr" rid="ref2_125">125</xref>] (components transverse to bridge axis). (a) bridge pier; (b) footing; (c) ground surface; (d) base of soft surface layer. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003210962/b4edbe24-1d38-43fc-9127-4c0be98a871c/content/fig130.tif"/> Acceleration response spectra at the Japan Nuclear Power Research Institute's dynamic test furnace (JPDR) and the surrounding ground [<xref ref-type="bibr" rid="ref2_126">126</xref>] (EW component, damping constant = 5%), as well as the simulation results using FEM (program CRAS) [<xref ref-type="bibr" rid="ref2_163">163</xref>]. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003210962/b4edbe24-1d38-43fc-9127-4c0be98a871c/content/fig131.tif"/> Acceleration records observed for the underground tank and the surrounding ground [<xref ref-type="bibr" rid="ref2_127">127</xref>]. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003210962/b4edbe24-1d38-43fc-9127-4c0be98a871c/content/fig132.tif"/> Acceleration records observed for ameliorated ground and the surroundings [<xref ref-type="bibr" rid="ref2_128">128</xref>]. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003210962/b4edbe24-1d38-43fc-9127-4c0be98a871c/content/fig133.tif"/>
