The problems faced by Chengdu steel structure manufacturers

Category： Industry News

Time：2020-07-08

Chengdu steel structure manufacturers share the information trends of the industry with you:

1. The production of components

The plates used for portal steel frames are very thin, up to 4 mm. The blanking of multi-thin plates should be cut in a way and avoid flame cutting. Because cutting with flame will cause a large wave deformation of the board edge. At present, most manufacturers of H-beam welding use submerged arc automatic welding or semi-automatic welding. If the control is not good, welding deformation should occur, so that the component is bent or twisted.

2. Column foot installation problem

(1) Embedded parts (anchor) problem phenomenon: overall or layout shift; The elevation is wrong; The fastener is not protected. Directly cause the bolt hole of the steel column bottom plate to be out of position, resulting in insufficient wire buckle length.

Measures: The steel structure construction unit cooperates with the civil construction unit to complete the embedded parts work, before the concrete is poured. The relevant dimensions must be reviewed and fixed firmly.

(2) The phenomenon that the anchor is not vertical: the horizontality, the bottom plate of the frame column is poor, the anchor is not vertical, and the horizontal error of the embedded anchor after foundation construction is large. After installation, the column is not in a straight line, and it is crooked, making the appearance of the house ugly, bringing errors to the installation of steel columns, and the structural force is affected, which does not meet the requirements of the construction acceptance specifications.

Measures: The anchor installation should insist on leveling the bottom plate with the lower adjustment bolt first, and then fill it with secondary grout with non-shrinkage mortar, which is constructed by this method abroad. Therefore, when the anchor is constructed, the fixed anchor can be fixed by steel bars or angle steel. Weld into a cage, perfect the support, or take some other effective measures to avoid the anchor moving one bit when pouring the foundation concrete.

(3) Anchor connection problem phenomenon: the anchor bolt of the column foot is not tightened, and the pad is not welded with the bottom plate; Some anchors with 2~3 silk buckles are not exposed.

Measures: welding bolts and nuts should be taken; On the outside of the chemical anchor, the fireproof coating and heat insulation treatment should be thickened to prevent the anchoring performance from being affected by fire; Basic settlement observation data should be supplemented.

The problems faced by different Chengdu steel structure manufacturers converge, I hope you will consult more.

Keywords： The problems faced by Chengdu steel structure manufacturers

Related Information

Company News

Industry News

SAF Coolest v1.3 设置面板UUBSX-ZFNJ-EEAVE-ASZ

营业执照及SEO链接： License

无数据提示

Sorry, there is no content in the current column!

You can view other columns or return Home

SVG图标库请自行添加图标，用div包起来，并命名使用