Seismic Research During Cather Pound Implosion

Curt Bright Author

02/22/2018 Added

117 Plays

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Assistant Professor of Civil Engineering, Christine Wittich studies the vibrations in surrounding buildings during the implosion of the Cather Pound Residence Halls in 2017.

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[00:00:01.967](banging)
[00:00:08.084](banging)
[00:00:10.561](cheering)
[00:00:12.430]So in a nutshell, a number of accelerometers,
[00:00:15.030]or vibration sensors,
[00:00:16.610]were placed in a number of surrounding buildings
[00:00:19.850]as well as on the ground in the free field
[00:00:22.080]during the collapse of the Cather Impound dormitories.
[00:00:25.430]Now, this data that we've collected during this implosion
[00:00:28.940]was particularly important,
[00:00:30.540]because it can help us to better understand
[00:00:33.200]how the response of one building
[00:00:35.600]during an extreme event,
[00:00:37.110]such as an earthquake,
[00:00:38.360]can impact all of the surrounding structures.
[00:00:41.490]One particularly interesting outcome so far
[00:00:44.150]has been that the vibration
[00:00:45.810]or the excitation
[00:00:47.150]at all of the adjacent structures
[00:00:49.070]in the vicinity
[00:00:50.480]was that about half of the maximum acceleration
[00:00:54.320]that was seen
[00:00:55.153]was due to the actual blast sequence,
[00:00:57.170]and by the blast sequence,
[00:00:58.100]we mean the explosion of the individual columns
[00:01:00.330]in Cather Impound.
[00:01:01.640]Whereas the actual collapse of the structures
[00:01:03.940]was only about twice that amplitude.
[00:01:06.920]This type of a project
[00:01:07.860]was only possible through a lot of coordination
[00:01:10.930]and collaboration with university housing,
[00:01:13.671]as well as with the actual demolition contractors.
[00:01:16.750]In addition, the support at the college level
[00:01:18.770]is particularly important,
[00:01:20.550]as they always wanted to encourage us
[00:01:22.650]to do these types of research
[00:01:24.450]and to give us the freedom
[00:01:25.690]to collect this type of data.
[00:01:27.820](cheering and clapping)

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Seismic Research During Cather Pound Implosion

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