4. For the setting and structure of the waist ribs and braces on the side of the beam, please refer to the National Standard Atlas 16G101-1 (the distance between the waist ribs is adjusted to a
4. The setting and construction of the side lumbar ribs and strains of the beam can be found in the national standard atlas 16G101-1 (the spacing of the lumbar ribs is adjusted to a).
4. See the national standard atlas 16g101-1 for the setting and structure of waist reinforcement and tie bar on the side of beam (the spacing of waist reinforcement is adjusted to a<br>