Based on the fatigue life model,the calculation method of the fatigue reliability index of high strength bolt in the grid structure with bolt-sphere joints is discussed and some important parameters are gained
Based on the fatigue life model,the calculation method of the fatigue reliability index of high strength bolt in the grid structure with bolt-sphere joints is discussed and some important parameters are gained
This paper does the test research on dynamic influence of vibration at rising and dropping weight in suspended crane. By arranging ,calculating and analyzing the test data, this paper thinks that the cycle number shou...
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This paper does the test research on dynamic influence of vibration at rising and dropping weight in suspended crane. By arranging ,calculating and analyzing the test data, this paper thinks that the cycle number should expand 1.5 times to consider the dynamic influence
A vast amount of information data must be inputted before finite element calculation of steel buildings, such as node information, element information and load information. So it is necessary to develop a computer aid...
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A vast amount of information data must be inputted before finite element calculation of steel buildings, such as node information, element information and load information. So it is necessary to develop a computer aided design system with 3D interactive function. A CAD system for steel buildings based on objectarx was developed with AutoCAD API and the Object-oriented technique. In this paper, some key programming technologies were studied, including design of classes of structure, identification of floor system and implementation of reactors.
A finite element study of the wall pressure by the stored solid in the ground-supported silo is presented in this paper. Firstly, the static wall pressure is investigated and the Janssen Formulation is suggested to be...
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A finite element study of the wall pressure by the stored solid in the ground-supported silo is presented in this paper. Firstly, the static wall pressure is investigated and the Janssen Formulation is suggested to be modified according to the finite element analysis. Secondly, the dynamic wall pressure is investigated and the coefficient of dynamic wall pressure for wheat is put forward.
A tall and slender structure will have relatively large lateral deformation under the action of lateral wind load and seismic load, and the structure's lateral stiffness is rather small, so the second-order effect...
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A tall and slender structure will have relatively large lateral deformation under the action of lateral wind load and seismic load, and the structure's lateral stiffness is rather small, so the second-order effect should be obvious. The second-order analysis of an asymmetric and tall steel tower is introduced, and the results between this second-order analysis and its linear analysis are compared. The comparison shows that the second-order analysis is necessary and important, and at the same time it demonstrates that the design of this tower is safe.
Taking a desulfurizing tower for example, the reinforcement method of a rectangular opening in large cylindrical shell structure subjected to axial compression together with internal hydrostatic pressure is studied on...
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Taking a desulfurizing tower for example, the reinforcement method of a rectangular opening in large cylindrical shell structure subjected to axial compression together with internal hydrostatic pressure is studied on the basis of finite element method. The stress distribution regularity in opening region and reinforcement effect is investigated on the basis of different reinforcement methods. Furthermore, the comparison of stress and steel consumption between different reinforcement methods is performed, then an economic and rational reinforcement method and the determination of dimension of reinforcement are proposed.
In this paper, based on the mode curvature method and the artificial neural network technology, a new method for damage localization for long-span spatial lattice structures is introduced. Through the investigation an...
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In this paper, based on the mode curvature method and the artificial neural network technology, a new method for damage localization for long-span spatial lattice structures is introduced. Through the investigation and comparison, the parameters suitable for the damage localization of the long-span spatial lattice structures are determined, and the different damage cases for a long-span cantilever tubular truss structure of the stadium in Tianjin Olympic Sport Center are numerically simulated to verify the applicability and effectiveness of the established damage localization method.
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