1.0.1 This specification is formulated to go through with national technical policy during design and construction of latticed shell and also achieve state-of-art technology, economy and rationality, safety and usability and guarantee quality.
1.0.2 This specification is applicable to design and construction of single-layer or double layer latticed shell composed by steel member bar.
1.0.3 Single-layer latticed shell should not be equipped with hanging crane. Double-layer latticed shell could directly bear up hanging crane load of A3 or higher grade. Fatigue computation shall be conducted when cycle index of stress variation is equal to or larger than 105 times, and its permissible stress amplitude and construction shall be determined through special test.
1.0.4 For design and construction of latticed shell, not only the requirements stipulated in this specification but also those in the current relevant ones of the nation shall be complied with.
