Scipediacontent: Scipediacontent moved page Draft Content 167230250 to Maeda et al 2021a

2021-11-30T13:16:42Z

Scipediacontent moved page Draft Content 167230250 to Maeda et al 2021a

Scipediacontent: Created page with "== Abstract == Masonry structures constructed about one hundred and fifty years ago, in the era of the opening of Japan, have been recognized as industrial heritag..."

2021-11-30T13:16:39Z

Created page with "== Abstract == Masonry structures constructed about one hundred and fifty years ago, in the era of the opening of Japan, have been recognized as industrial heritag..."

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== Abstract ==

Masonry structures constructed about one hundred and fifty years ago, in the era
of the opening of Japan, have been recognized as industrial heritages. Many of them are
masonry warehouses made of brick or stone walls framed by wood members. In this research,
a two-story warehouse in Tomioka city, a mortar jointed brick masonry with wooden frame
reinforcements, was studied for strong earthquake ground motion. Several vibration modes
were identified by micro-tremor observations and excitation tests. The three-dimensional FE
overall model was constructed and tuned for the distinctive vibration modes. Two DEM local
models, one for bending at the center bottom of the wall treated by plane strain, and the other
for shear at the upper corner of the wall by plane stress, were constructed to evaluate brick
joint splitting. For both models, dynamic displacement response obtained by the three-
dimensional FEM were specified at their peripheries via periphery blocks. At the center bottom
of the wall, horizontally developing joint splitting in the section was evaluated. At the upper
corners, obliquely proceeding joint splitting on the wall was evaluated. In these analyses, the
specified displacements were calculated by the FE model for intact brick walls, regardless of
the degrading status of the walls. Although this assumption will have to be justified, the results
of DEM were consistent with the reported summary of past earthquake damages.

== Full document ==
<pdf>Media:Draft_Content_167230250p725.pdf</pdf>
== References ==

[1] Hironaka, T., Maeda, T. Araya, M. and Ejiri, N. Safety Evaluation of Inner Gallery in Bayon Temple by DEM with Preliminary Experiments, 10th SAHC (2016).

[2] Yamashita, Y. and Maeda, T. Simulation of Distinct Element Joint Stiffness of the Historical Masonry Structure Model by Micro-tremor Measurement, 11th SAHC (2018).

[3] Yamamoto, T. and Maeda, T. Earthquake Safety Assessment of a Tall Brick Chimney in Tokoname Based on the Micro-Tremor Measurement, 14WCEE (2008), 05-04, 0073.

[4] Minamide ,K. et al. Basic investigation of seismic diagnosis method on historical masonry, Historical masonry prevention committee’s report, Proceedings of Annual meeting for Hokkaido Branch of Architectural Institute of Japan, (1997), pp.253-256 in Japanese.

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Maeda et al 2021a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 167230250 to Maeda et al 2021a

Scipediacontent: Created page with "== Abstract == Masonry structures constructed about one hundred and fifty years ago, in the era of the opening of Japan, have been recognized as industrial heritag..."