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...
详细信息
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 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...
详细信息
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...
详细信息
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.
The performance of the box-column(without stiffing plates inside) and H beam joint at the tension region of the beam flange was first *** the simplified model for analysis was established and twenty models were analys...
详细信息
The performance of the box-column(without stiffing plates inside) and H beam joint at the tension region of the beam flange was first *** the simplified model for analysis was established and twenty models were analysed with the nonlinear finite element *** the impact of the width of the beam flange,the thickness of the column flange and the axial load ratio of the column on the behavior of the joint were also discussed. Finally,the ruling condition of the load-carrying capacity of the joint was established,according to which the formula to calculate the bearing capacity of the joint was suggested and the results from the suggested formula and FEM analysis were compared.
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...
详细信息
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.
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...
详细信息
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 new model for the second order elastic-plastic analysis of plane steel structures was presented by replacing the general element with a new one, which has two rotational springs at its ends. Revising its rotation di...
详细信息
A new model for the second order elastic-plastic analysis of plane steel structures was presented by replacing the general element with a new one, which has two rotational springs at its ends. Revising its rotation displacement equation, the second order elastic-plastic stiffness matrix of this kind of structure was derived. And the second order elastic-plastic program of this structure was worked out. Three steel frames were calculated with this program. The calculation results show that this model is reliable and fit to the analysis of all plane steel structures.
On the basis of uniaxial compression tests on 18 short column specimens, the ultimate bearing capacity of shale ceramisite concrete filled steel tubular short column is analyzed. The results have been compared with co...
详细信息
On the basis of uniaxial compression tests on 18 short column specimens, the ultimate bearing capacity of shale ceramisite concrete filled steel tubular short column is analyzed. The results have been compared with common concrete filled steel tubular columns. The ultimate bearing capacity formula of shale ceramisite concrete filled steel tubular short columns is derived by the limit equilibrium method. According to the good agreement between the calculated results and experimental data, reference can be proposed for the engineering application of the lightweight concrete.
暂无评论