1 Scope
1.1 This Part specifies the structural types, series parameters and dimensions, permissible loads, materials, manufacture and inspection requirements and selection methods of the bracket supports.
1.2 This Part is applicable to the vertical cylindrical steel vessels under the following conditions.
a) Nominal diameter DN 800mm~4000mm;
b) Ratio of cylinder length L to nominal diameter DN DN≤5;
c) Total height of vessel H0≤10m.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this Part of JB/T 4712. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 985 Basic forms and sizes of weld grooves for gas welding, manual arc welding and gas-shielded arc welding
GB/T 1804 General tolerances-tolerances for linear and angular dimensions without individual tolerance indications
Contents
Foreword i
1 Scope
2 Normative References
3 Type Characteristics
4 Series Parameters and Dimensions
5 Materials
6 Marking
7 Manufacturing Technology Requirements
8 Selection
Appendix A (Informative) Approximate Calculation of Actual Bearing Load of Bracket Support
Appendix B (Informative) Permissible Vertical Loads [F] of Type B Supports Restricted by the Vessel Heads
Appendix C (Informative) Installation Height of Bracket Support
