Steel structure welding safety precautions

Steel structure engineering has been applied to many fields. Today, I want to share with you the safety precautions for steel structure welding, I hope it will help you.

1. For the welding seam made by the steel structure processing plant, the percentage should be calculated according to each welding seam. If the percentage is calculated by the number of welding seams, this method is wrong.

Second, for the welding seam of the steel structure installation site, care should be taken to prevent only checking the lower part, not the upper part; , horizontal welding and vertical welding seams, neglect inspection of difficult-to-inspect parts such as overhead welding and dead angle, and the inspection results are difficult to be representative.

Third, for the first-level and second-level welds of steel structure engineering construction, there is not much difference in welding process and weld quality requirements. The difference between the two is mainly due to the difference in the detection ratio, and according to the thickness of the steel plate to be inspected, the defect parameters and quantity quantification during inspection are slightly different.

Fourth, although fillet welds belong to third-class welds in most cases, in some projects, when there are special requirements, the design will be improved to not lower than second-class or even first-class. Such as the T-shaped connection weld between the rectangular tube and the rectangular tube, the rigid weld between the I-beam and the lateral embedded parts, the fillet weld grade of the beam joint plate and the chord on the railway and highway steel bridges, etc. Wait.

5. Some steel structure projects are very tight in terms of construction period and construction arrangement, which will cause the components that have just been welded in the morning to be hoisted in a hurry during the weld inspection in the afternoon. This operation is also wrong. The correct way is that for steel components, it is necessary to test after 24 hours after welding.

For the welding seam quality and inspection and grading requirements of steel structure engineering, in addition to the relevant specifications, the 'General Instructions for Steel Structure Design' and related requirements of the project should also be carefully analyzed. If there is any contradiction or it is not clear, it should be communicated with the owner and the designer as soon as possible.

Steel Structure Co., Ltd. is a comprehensive service provider of steel structure engineering design, processing and construction. The base processing workshop includes cutting workshop, submerged arc welding workshop, assembly workshop and painting workshop, which can provide a complete set of steel structure solutions Scheme, if you need to consult the steel structure project budget quotation, welcome to inquire.