Everyone knows that many cities will choose to build steel structures. Regardless of whether they are large or small steel structures, they are the most important for safety protection. In particular, when the steel structure is being painted, it is hoped that it will be helpful for everyone to understand the construction of the steel structure and the protection of the steel structure. 

Steel structure paint construction attention

1, grassroots processing

First of all, before painting the steel structure, we must do some of the most basic treatment of the steel structure, that is, all the surface of the steel structure of the mortar, rust, welding slag, and so all the clean. If the metal surface is generally floating rust, it can be reciprocally brushed with a wire brush, and then use a coarse cloth to polish a new shiny surface, and then use the old cloth or cotton yarn will be polished under the floating ash, rust clean. If the corrosion of the metal surface of the steel component is severe, use a spatula to scrape the rust scale first, or use a hammer or spatula to clean it, and then clean it with a wire brush, and then polish it with an emery cloth so that it can be painted with antirust paint. 

2, anti-rust paint

In general, steel structures require long-term weather experience in the outdoors, so it is necessary to carry out anti-rust paint this project, then when Tu Hongdan antirust paint, the surface of the components must be dry, if there is water, water vapor must be dry . When brushing must be in place, brush full, brush uniform, the small steel structure components or metal products can be a complex pattern of the two cooperation, one person with a cotton yarn enamel paint enamel rub, a person with an oil brush to straighten out and rationalize. For the gaps that are not easy to be painted in steel components, the rust removal and painting processes at the joints should be completed before assembly, but the rivet holes must not be coated with paint to prevent slag inclusions in riveted eyes. 

3, putty

When the anti-rust paint is completely dry, the steel structural defects are scraped off with the putty used when the paint is purchased, and thick paint or reddish powder may be added to the material of the putty to increase the dry-hardness. After the putty is dry, it should be polished and cleaned. After the steel structural components are made in the factory, they should be painted with antirust beforehand.

Steel structure construction safety how to protect

1. Generally speaking, each steel structure is built according to the regulations in terms of height, thickness, area, etc., and the tower is built according to the height of each layer of 12 to 13 meters. Most of the installation and operation personnel work or walk on the narrow main and secondary beams. According to the 12 to 13m height of each layer of the steel structure of my project as an example, the 2m height standard is the starting point. It has exceeded the requirements for safety protection at the height of work. Therefore, when the column foot of 3.5m is installed, conditions permitting, a double-level horizontal safety net should be attached for protection. In addition, a layer of horizontal safety nets is added for each installation of a main structural column. The protective distance between horizontal safety nets and high-altitude workers is generally not more than 10 m. 

2, then in the steel structure on the edge of our safety protection measures is the most important, it is not the same as the conventional edge protection, before laying the floor panel, you must set two safety ropes, protective rope The height should not be less than 1.2m. When laying the floor panel, the side edge protection should be synchronously set as a steel pipe safety fence. At this time, the fence can generally be suspended. The height of the edge protection should be between 1.2-1.5m, but it must not be less than 1.2m. Two horizontal bars above and below and two red and white paints are forbidden to cross.