| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
On September 19, 1985, middle/high rise buildings in Mexico City were severely damaged. A 14-story RC residential building Nuevo Leon is known to have suffered the most severe damage. It is supposed that the natural period was elongated due to structural damage including and resonance with the ground motion occurred. The building consisted of three structurally independent units and pounding between the units occurred and significant impact load was applied to the building structure.
This study attempts to quantitate the period-elongation and the impact load due to contact/friction by means of finite element analyses and experimental tests.
The evaluated pounding load induced between the building units. This load is 2.9 times the flexural strength of the column on the 14th story although it is resisted by the shear/flexural capacities of several adjacent columns. The analysis indicates that the pounding is accompanied with the friction in the transverse and up-down directions.
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