Abstract
For a flexible tension structure, the first thing to do is to perform a form-finding analysis to obtain a reasonable initial state of the structure. The initial state includes the structure's own weight and the cable force distribution under the additional dead load and the corresponding geometric configuration. The geometric configuration and expectations must be ensured to be consistent with the geometry of the building. This paper used the MIDAS software to first establish the zero-state model of the structure, and then added reasonable prestress to ensure that the initial configuration of the structure under prestress, structure dead weight and additional dead load is basically the same as that under zero state, thus ensuring the feasibility and accuracy of later structural load analysis and construction process analysis, and providing ideas and methods for related projects.
Highlights
IntroductionThe cable-membrane tension structure has developed rapidly
In recent years, the cable-membrane tension structure has developed rapidly
The geometric configuration and internal force distribution state that the structure has when it bears other external loads except its own weight and prestress based on the initial state is called the load state
Summary
The cable-membrane tension structure has developed rapidly It is currently mainly used in various scenes such as stadiums, convention and exhibition centers, and airport stations. After the tension is completed, the designed geometric configuration is reached under the combined action of the dead weight and the prestress In this case, the initial state, and the prestress state can be obtained. The initial state is the most important for the cable membrane tensioning structure, which serves as a link between the preceding and the following. It is mainly manifested in three aspects: First, the initial state is the state that the architectural design needs to achieve, and the geometric. This paper uses the MIDAS software to first establish the zero-state model of the structure, and add reasonable prestress to ensure that the initial configuration of the structure under prestress, structure dead weight and additional dead load is basically the same as that under zero state, ensuring the feasibility and accuracy of later structural load analysis and construction process analysis, and providing ideas and methods for related projects
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