Rubber isolation bearing for Kunming new airport construction
Led by the Yunnan Institute of Earthquake Engineering and the Beijing Architectural Design and Research Institute, a number of domestic research institutes and research groups composed of well-known experts at home and abroad, such as New Zealand and Japan, have overcome many difficulties and successfully developed a hybrid isolation design method. The large-diameter and large-displacement rubber isolation bearing with independent intellectual property rights, and the first application of this seismic isolation technology and new products to the national major construction projects, the seismic performance of the building has been greatly improved, the function has been optimized, and the technology has reached the international advanced level.
Yunnan Province is an earthquake-prone area. The Kunming New Airport has high seismic fortification requirements and must adopt the internationally advanced seismic isolation design. In January 2008, the project “Research and Application of Seismic Isolation and Seismic Technology of Kunming New Airport Terminal” led by Yunnan Institute of Earthquake Engineering and Beijing Institute of Architectural Design was listed as a key science and technology project in Yunnan Province. Office funding. Under the joint efforts of the project team, in June of that year, it successfully developed a large-diameter, large-displacement rubber isolation bearing with independent intellectual property rights to meet the requirements of the new airport isolation performance, and entered the installation phase in December. It is understood that a total of 1811 bearings are installed on the ground minus 17 meters. These supports can be deformed with vibration. The maximum deformation can reach 55 cm. It seems that a spring is installed at the bottom of the terminal, so that the building does not encounter an earthquake. Collapse is possible. After passing the seismic simulation vibration test, Area A of the new airport terminal station showed good adaptability, which basically satisfies the anti-seismic waterproofing standard of “small earthquake is not bad, medium earthquake can be repaired, and large earthquake does not fall”.
Development trend of rubber dam