Dynamic shieldings for cultural heritage buildings under seismic action

作者：Carpinteri Andrea; Fortese Giovanni; Ronchei Camilla; Scorza Daniela; Tasora Alessandro; Vantadori Sabrina^*

来源：Soil Dynamics and Earthquake Engineering, 2016, 89: 269-276.

DOI：10.1016/j.soildyn.2016.07.019

• Multi-body
• Pompeii colonnade
• Seismic barrier
• Shadow zone
• Shielded zone

The goal of the present paper is to numerically investigate the effects produced by a vertical barrier located inside the ground, when the soil is subjected to seismic waves coming from a seismic source with a planar wave front. Firstly, the acceleration field on the ground surface is computed by varying both geometrical and mechanical properties of the barrier in order to determine, through a parametric study, the optimal barrier configuration to minimize the maximum magnitude of surface acceleration inside the shielded zone. Then, the above configuration is employed in the framework of a seismic analysis: a portion of a colonnade in Pompeii (Naples, Italy) is examined, with such a colonnade assumed to be located inside the shielded zone. A comparison of the seismic behaviour of such a heritage building is provided for the two cases of ground with or without the above vertical barrier.

• 出版日期2016-10