In order to evaluate the earthquake resistance of the Akamon Gate of the University of Tokyo, which is a building built in the Edo period and designated as a national important cultural property, a research group at the University of Tokyo installed a device to measure runout and conducted a full-scale survey. I started.

The Akamon Gate of the University of Tokyo was built by the Kaga Domain 195 years ago as the gate of a mansion in the present Bunkyo Ward of Tokyo. It is about 9 meters high and is designated as an Important Cultural Property of Japan.

On the 29th, a research group at the University of Tokyo installed equipment to measure shaking at five locations, including the attic, and began a survey to evaluate seismic resistance from the way shaking caused by earthquakes.



The students then shook the gate by hand to see if the device was working properly.

Akamon mainly supports a heavy roof called "hon tiled roof" with six thick pillars, and repairs are carried out regularly. During the Great Kanto Earthquake, many buildings in the surrounding area were damaged by collapse or burning. However, Akamon did not collapse.



The University of Tokyo will make a seismic diagnosis of Akamon, including the results of this survey, and determine whether countermeasures are necessary.



Professor Kaori Fujita of the University of Tokyo said, "Akamon is a very nice and solid building, but since it has been nearly 200 years old, I would like to accurately evaluate the current performance and help ensure the safety of the building." rice field.

Keywords: