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Huang Z.,RBS Architecture Engineer Design Associate | Huang Z.,Guangzhou Scientific Computing Consultants Co. | Liao Y.,RBS Architecture Engineer Design Associate | Liao Y.,Guangzhou Scientific Computing Consultants Co. | And 2 more authors.
Jianzhu Jiegou Xuebao/Journal of Building Structures | Year: 2012

Guangzhou East Tower is a 530 meters high complex structure. Its lateral foce resisting system consists of composite steel concrete shear wall core, perimeter giant frame and belt truss. The explicit method was implemented to integrate the dynamic equations. ABAQUS and BEPTA were used to perform the elasto-plastic time-history analysis under rare earthquakes. The seismic performance of the structure was studied. By strengthening the fragile shear wall with steel plate, strengthening the irregular shear wall hole with steel truss, and connecting the belt truss and shear wall, the maximum inter-story drift could conform to relevant code requirements. The first story shear wall and perimeter giant frame column could resist the tensile force. The results show that the main load-bearing constructional members do not yield. The structure has sufficient seismic capacity.


Huang Z.,RBS Architecture Engineer Design Associate | Huang Z.,RBS Partners S&T Co. | Liu J.,RBS Architecture Engineer Design Associate | Liu J.,RBS Partners S&T Co. | And 3 more authors.
Jianzhu Jiegou Xuebao/Journal of Building Structures | Year: 2016

The Shenzhen Bay Headquarters is a 400 m high complex structure. The close column frame-core tube structure system is adopted. Its perimeter frame is composed of 56 steel columns, where the beams and columns are connected by completely eccentric joints and the stiffness of the perimeter frame is relatively weak. Because of the setback of the building, two-story high sloped core wall is adopted. The close column frame is composed of box steel beam and box steel column. The core tube wall is strengthened by embedding steel columns. The seismic design requirements on the close column frame and core tube wall are increased to remain elastic state under medium earthquakes. To study the seismic performance of the structure under rare earthquakes, nonlinearities of the beam, column and shear wall element are modelled in the stress-strain relation level, taking into account the geometric nonlinearity of the structure. ABAQUS and BEPTA soft were used to perform the elasto-plastic time-history analysis under the rare earthquake input. The results show that: the close column frame with high seismic capacity can realize the two defense line mechanism; the maximum story drift ratio could conform to the relevant code requirements; the main members of the close column frame and core tube wall do not yield, showing good seismic performance. © 2016, Science Press. All right reserved.

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