Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipa...Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipation devices (EMF), a 5-story steel frame model with spacious first story is designed and made according to a scale of 1/4. The magnet-friction energy dissipation devices can realize continuously varied controlling force, with rapid response and reverse recognition. Therefore, they overcome shortcomings usually found in energy dissipation devices whose force models are invariable. The two kinds of devices were fixed on the flexible first story of the structure model, and the shaking table tests have been carried out, respectively. In these tests, the performance of the devices and their effectiveness in structural control were confirmed. In this paper, the test results and analysis are discussed.展开更多
THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters...THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters wide. Put side by side on a table, they stretch across less than one meter in length. They hold the files of around 1,900 school-age children from 12 villages in Zengkou Primary School of Bazhou District, Bazhong City of Sichuan Province.展开更多
文摘Based on the former performance capacity experiments of the magnet-friction energy dissipation devices, including the permanent magnet-friction energy dissipation device (PMF) and electromagnet-friction energy dissipation devices (EMF), a 5-story steel frame model with spacious first story is designed and made according to a scale of 1/4. The magnet-friction energy dissipation devices can realize continuously varied controlling force, with rapid response and reverse recognition. Therefore, they overcome shortcomings usually found in energy dissipation devices whose force models are invariable. The two kinds of devices were fixed on the flexible first story of the structure model, and the shaking table tests have been carried out, respectively. In these tests, the performance of the devices and their effectiveness in structural control were confirmed. In this paper, the test results and analysis are discussed.
文摘THE small office, situated in the spacious campus, is pretty obscure. Similarly obscure is the iron cabinet which stands in the corner of the office containing 27 blue file holders. Each file holder is 3.5 centimeters wide. Put side by side on a table, they stretch across less than one meter in length. They hold the files of around 1,900 school-age children from 12 villages in Zengkou Primary School of Bazhou District, Bazhong City of Sichuan Province.
