Optimization of Isolation Structure Under Wind Load Excitation and Experimental Study of the Wind Resistant Bearing

• Published in: Shanghai jiao tong da xue xue bao Vol. 21; no. 6; pp. 719 - 728
• Main Author: 吴应雄 黄净 颜桂云 颜学渊 吕加成
• Format: Journal Article
• Language: English
• Published: Shanghai Shanghai Jiaotong University Press 01.12.2016; Springer Nature B.V
• Subjects: Architecture; Bearing capacity; Collaborative work; Comparative analysis; Computer Science; Design optimization; Displacement; Earthquake resistance; Earthquakes; Electrical Engineering; Engineering; Excitation; Finite element method; Life Sciences; Materials Science; Mathematical analysis; Mathematical models; Rubber; Seismic activity; Seismic isolation; Seismic response; Shear tests; Steel plates; Vibration analysis; Vibration control; Wind; Wind effects; Wind loads; Wind resistance; Working conditions; Yield strength; isolation structure; TU 352.1; anti-wind-bearing (AWB); column top isolation; numerical simulation; shear test
• ISSN: 1007-1172; 1995-8188
• DOI: 10.1007/s12204-016-1786-0

The method of collaborative work between steel bearing is proposed to study the vibration reduction effect plate anti-wind bearing （AWB） and rubber isolation of isolation structure under stronger wind load, and the function mechanism is explained. Based on a practical project, three kinds of schemes with different isolation layers are put forward, the finite element software ETABS is used for time history analysis, and comparison is made on the seismic response of different isolated structure and aseismic structure. Comparison result shows that the isolation layer with rubber bearing and AWB can work reasonably, but further optimization on the designed parameters is needed. Moreover, the design value of horizontal bearing capacity of lead rubber bearing （LRB） is appropriate to be close to the seismic isolation layer under wind load excitation. Finally, numerical simulation and comparative analysis of shear test of the AWB are conducted. With a very small yield displacement and yield strength over 80% of the set of horizontal bearing capacity, the AWB is validated to satisfy the working conditions which provide the horizontal bearing capacity under AWB yields and malfunctions, when the maximum layer. normal operating conditions and designed earthquake. The displacement is less than the displacement of the isolation