China Guodian Corporation Southern Branch

Guangzhou, China

China Guodian Corporation Southern Branch

Guangzhou, China
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Song B.,University of Science and Technology Beijing | Shi H.,University of Science and Technology Beijing | Song H.,Shanghai Taiyo Kogyo Co. | Wei W.,China Guodian Corporation Southern Branch | Yu J.,China Guodian Corporation Southern Branch
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2013

Based on large geometric deformation and nonlinear of material theories, the seismic responses of a long-span double-layer spherical lattice shells with opening whose span is 116.1m in Zhaoqing were studied, and the influence of opening in the lattice shells to the multiple earthquake excitations of structures was analyzed. The results show that the maximum displacement appeared in the quarter span of both structures under single-dimensional and multi-dimensional earthquake. Under multi-dimensional earthquake, the maximum displacement, the maximum axial stress of elements and the maximum plastic ratio of elements increased 14%, 7.6% and 15% respectively than those corresponding to the seismic responses of the structure without opening. Under multi-dimensional earthquake, the maximum displacement and the maximum axial stress of elements of the structure with opening increased 20.6% and 19% respectively than those corresponding to under single-dimensional earthquake.


Song B.,University of Science and Technology Beijing | Huang S.,University of Science and Technology Beijing | He W.,University of Science and Technology Beijing | Wei W.,China Guodian Corporation Southern Branch
Applied Mechanics and Materials | Year: 2013

Based on the 3D finite element model of the wind power tower, buckling behavior of the wind power tower in different wind directions is analyzed, and the effect considering geometry nonlinearity and considering the material and geometry nonlinearity to the buckling analysis is studied. The results show when the ratio of the radius of the tower drum and the length of the element is 18.75, the calculated precision can reach 95%. Local buckling of the wind power tower first appears, and buckling load and displacement considering the material and geometric nonlinearity reduce 52% and 58% compared with that only considering geometry nonlinearity. The linear and nonlinear buckling load of the wind power tower which is 90° sidewind are 1.8 and 1.2 times than those facing the wind direction. © (2013) Trans Tech Publications, Switzerland.


Huang S.,University of Science and Technology Beijing | Song B.,University of Science and Technology Beijing | He W.,University of Science and Technology Beijing | Wei W.,China Guodian Corporation Southern Branch
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2012

Based on the finite element model, rotor-cabin-tower, of wind power tower, dynamic response under the storm load is analyzed, The stress, displacement and internal force of the wind power tower are calculated based on the calculation method of regulation and time-history. Change rules of mechanical characteristics of wind power tower influenced by the worst wind direction, and field monitoring under the common wind load are analyzed. The results show that the stress, displacement and internal force of dynamic analysis are greater than that calculated by regulation. The maximum stress value is smaller than the minimum permissible stress, however the displacement at the top of wind power tower is greater than allowable deformation in code. The maximum shear and bending moment influenced by the worst wind direction of the storm increased 91% and 106%. Simulation results have a good agreement with the monitoring results, and the monitoring results are greater than the simulation results.

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