发现板在两端简支、中点联结松动时，结构首先出现屈曲失稳，而不会发生颤振失稳。
For pined_pined, loosed midpoint support plate, it is found that the plate's buckling instability will happen first while the flutter instability will disappear.
发现板在两端简支、中点联结松动时，结构首先出现屈曲失稳，而不会发生颤振失稳。
For pined_pined, loosed midpoint support plate, it is found that the plates buckling instability will happen first while the flutter instability will disappear.
两块板端应该搭接，搭接长度大约为工厂预制槽的一半(搭接时注意当地的常年风向)。
Two boards should end lap, lap length about half the prefabricated groove for the factory.
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