2. Development of system of the large deformation stability analysis of space bar structuresFirstly, development platform GiD7.2 and calculation analysis program FEAP are introduced.

The 3D free vibration properties of the cable stayed bridge on Wuhu Yangtze River bridge, which is of 180 m+312 m+180 m span, are analyzed by space bar FEM model and also by space bar slab solid hybrid FEM model.

针对芜湖长江大桥主桥 180 m +312 m +180 m的斜拉桥 ,分别采用空间杆系有限元模型与空间杆系 -板-实体混合单元有限元模型分析了桥梁的空间自振特性 ,两种模型的计算结果取得了较好的一致。

The 3D free vibration properties of Yuxi River continuous steel truss bridge on Wuhu Yangtze River bridge, which is of 2×80 m span, are analyzed by space bar FEM model.

In order to test the reliability of the FEM of beam elements, the results obtained by this kind of FEM are compared with those by the FEM of space bar system and those from a model test.

The paper introduces the characteristics of the second storey rigid bridge of Quzhuang Interchange in Guangzhou City and establishes space member system element finite model for making the static and dynamic analysis to provide the theory basis for design.

In this paper the static stable and dynamic computation for dome structure of space member system were investigated. A set of united calculative formulae,which were solved by the matrix method,were proposed.

A new simplified computational model for dynamical analysis of extra tall building structure space mega frame is established. The computational model is space member system storey model,the space mega frame is composed of huge columns and huge beams on elastic foundation,the columns of the second frame,considering its axial deformations,are seen as the elastic foundation of the huge beams,the masses are lumped on the huge beams storeys.

Based on the story model of spatial member, the supplemental damping matrix, dynamic balance equation and relative energy balance equation of structures with viscous dampers are derived.

In order to roundly analysize the mechanical behavior of the bridge,spatial member and shell finite element model were established,further deformation and strain values of governable section under several main loading cases were listed;

In this paper a space analysis method for built-up system of arch trussed beam has been proposed. The physical model of continuum body is adopted. The structure is resolved into several compound elements and every compound element consist of three parts: arch, trussed beam and lateral brace. In the paper authors'll derive element stiffness matrix, mass matrix and formulas for computation of inner forces. Finally we'll compare the results of computation with that of experimentation and with the precise from calculation...

In this paper a space analysis method for built-up system of arch trussed beam has been proposed. The physical model of continuum body is adopted. The structure is resolved into several compound elements and every compound element consist of three parts: arch, trussed beam and lateral brace. In the paper authors'll derive element stiffness matrix, mass matrix and formulas for computation of inner forces. Finally we'll compare the results of computation with that of experimentation and with the precise from calculation by customary finite element method in the elementary theory of space member structures.

Three methods of theoretical dynamic analysis for a steel tower are conducted.(1) Space-truss-multimass dynamic system calculated with the method of mode analysis; (2) Space truss dynamic system calculated with the same method; (3) Space-truss-multimass dynamic system, the response of which is calculated with inputting the earthquake record.For verifying the results of the analysis, two other methods of dynamic test on the prototype structure are also made. (1) forced vibration carried out by vibrators; (2)...

Three methods of theoretical dynamic analysis for a steel tower are conducted.(1) Space-truss-multimass dynamic system calculated with the method of mode analysis; (2) Space truss dynamic system calculated with the same method; (3) Space-truss-multimass dynamic system, the response of which is calculated with inputting the earthquake record.For verifying the results of the analysis, two other methods of dynamic test on the prototype structure are also made. (1) forced vibration carried out by vibrators; (2) microseismic measurement recorded by graph and by magnetic tape and analysed by signal-processor. The results of different methods of analysis and tests are compared in the paper.

In this paper, a brief explanation of application of the principle of energy for stability analysis of space frameworks is offered. Some foreign data expressions concerned are simplified and to them additions have been made to meet needs of water conservation measure in agriculture. Thus, a better calculating accuracy has been obtained. The computer program compiled based on the predescribed formulation has been proved to accord with results of classical solutions and model tests. It would be a means to space...

In this paper, a brief explanation of application of the principle of energy for stability analysis of space frameworks is offered. Some foreign data expressions concerned are simplified and to them additions have been made to meet needs of water conservation measure in agriculture. Thus, a better calculating accuracy has been obtained. The computer program compiled based on the predescribed formulation has been proved to accord with results of classical solutions and model tests. It would be a means to space stability analysis of long span arched structures.