GB 10854-1989 Dimensions of steel structure welds

This standard specifies the inspection of the outer dimensions of steel structure welds and the outer dimensions of fusion welded butt joints and corner joints of steel structures. GB 10854-1989 Outline dimensions of steel structure welds GB10854-1989 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Outer dimensions of welds for steel structures
Weld outerdimesions for steel construction Subject content and scope of application
This standard specifies the outer dimensions of welds for welded joints in steel structures. This standard is applicable to the inspection of overall dimensions of fusion welded butt joints and corner joints of steel structures. 2 Reference standards
Weld symbol representation
GB985 Basic form and size of weld grooves for gas welding, manual arc welding and gas shielded welding GB986 Submerged arc welding grooves Basic forms and dimensions of the weld 3 General principles
GB·10854-89
3.1 Before inspecting the outer dimensions of the weld, the weld and both sides must be cleared of slag, spatter and other contaminants. The inspection of weld dimensions is mainly carried out with the naked eye and with the help of relevant auxiliary measuring tools. Ensure good lighting during inspection. 3.2
The groove form and size of the weld shall comply with the relevant provisions of GB985 and GB986. 3.4 The marking of the outer dimensions of the weld shall be carried out in accordance with the relevant provisions of GB324. 4 Dimensions
4.1 The appearance of the weld should be uniform, and the transition between weld beads and weld beads and the base metal should be smooth. I-shaped groove butt welds (including I-shaped butt welds with backing plates) are shown in Figure 1. The weld width c=b+2a and reinforcement h value should comply with the requirements of Table 1 of 4.2
Figure 1
4.3 Non-I-shaped groove butt welds (various butt groove forms of welds in GB985 and GB986 except I-shaped grooves) are shown in Figure 2. The weld width c=g+2α and reinforcement h value should comply with the requirements in Table 1. State Bureau of Technical Supervision approved the implementation on 1990-01-01 on 1989-03-31
Welding method
Submerged arc welding
Manual arc welding and gas
Shielded welding|| tt||Weld form
I-shaped weld
Non-I-shaped weld
I-shaped weld
Non-I-shaped weld
GB10854 -89
Figure 2
Table 1
Weld width c
9+ 4||tt ||6+4
Note: ①The 6 value in the table is the actual assembly value that meets the requirements of GB985 and GB986 standards. ② If the 9 value calculation result contains decimals, the numerical rounding method can be used to calculate to integer digits. The g value is calculated according to Figure 3 and the formula.
Figure 3
In Figure 3(a): g=2tgβ.(sP)+b In Figure 3(b): g=2tgβ.(8- RP) +2R+bCmax
(b)||tt| |mm
Weld reinforcement h
Flat welding: 0~3
Others: 0~4
4.4 Max. The difference between the width cmax and the minimum width cmin shall not be greater than 4mm within any 50mm weld length range, and shall not be greater than 5mm within the entire weld length range.
4.5 Weld edge straightness f, within any 300mm continuous weld length, the straightness f of the weld edge along the weld axis is shown in Figure 4, and its value should comply with the provisions of Table 2.
Welding methods
Submerged arc welding
Manual arc welding and gas shielded welding
GB 10854—89
Figure 4| |tt||Table 2
The straightness of the weld edge is within
4.6 The surface of the weld is uneven. Within any 25mm length range of the seam, the difference in weld reinforcement hmax-hmin shall not be greater than 2mm, see Figure 5.
Figure 5
4.7 The leg size K value of the fillet weld shall be specified in the design or relevant technical documents, and the deviation of the welding leg size K value shall comply with the provisions of Table 3. Table 3
Welding method
K<12
Submerged arc weldingWww.bzxZ.net
Manual arc welding and gas shielded welding
deviation
difference
K>12
+ 4||tt ||mm
5 When the outer dimensions of the weld exceed the above requirements after inspection, it shall be ground or partially repaired according to a certain process. After repair, it shall comply with the provisions of this standard. And the repair welding seam should maintain a smooth transition from the original welding seam. 6. Special requirements for welding seam dimensions can be implemented with reference to relevant standards and technical conditions. No
GB10865-0
This standard was drafted by the Harbin Welding Research Institute and Dalian Hoisting Machinery Factory. The main drafters of this standard are Ji Aijing and Sun Yuying. Connect with the institute
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