Problems in the price and construction of the steel structure of the workshop

Problems in the price and construction of the steel structure of the workshop

1. Parts production problems

The door frame plate is thin , the thinnest available and 4mm. Steel structure engineering is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of beam steel, steel column, steel truss and other components made of section steel and steel plate, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. High-strength steel should be studied in the production of steel structures in the iron sheet workshop to greatly improve its yield point strength; in addition, new types of steel should be rolled, such as H-beam (also known as wide-flange steel) and T-shaped steel and profiled steel plates to adapt to large The need for span structures and super high-rise buildings.

Factory steel structure price is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of beam steel, steel column, steel truss and other components made of section steel and steel plate, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. The multi-piece cutting mode should preferably avoid shear flame cutting. Because the flame will be cut, the edge of the board will be deformed by waves that have a great impact. At present, most manufacturers of H-beam welding technology use submerged arc automatic welding or semi-automatic welding. If the controlled environment is not good, the deformation of the welding joint should occur, causing the member to bend or twist.

2. Pin installation problem

(1) Embedded part (anchor) description: overall layout or offset; elevation is wrong; thread protection. The direct result of the plate steel stud hole is right, resulting in insufficient thread length design.

(2) The phenomenon that the anchor bolts are not vertical: the levelness of the bottom plate of the frame column is poor, the anchor bolts are not vertical, and the horizontal error of the pre-buried anchor bolts after foundation construction is too large .. Uninstalled posts are in a straight line and staggered, making the appearance of the house ugly, the errors brought about by the installation of steel columns, the force structure is affected, and it does not meet the requirements of construction acceptance specifications.

(3) A research phenomenon of anchor bolt connection: the column foot anchor bolt is not tightened, the backing plate is not welded with the bottom plate; Anchor bolt workshop steel structure price.

3. Connection problems

(1) The equipment surface of the high-strength bolts connecting the bolts does not meet the requirements, which makes the bolts not easy to install , or the bolt tightening degree does not meet the design requirements.

(2) On-site welding phenomenon: it is difficult to guarantee the quality; the design requirements of full penetration, the welding does not use two ultrasonic flaw detection; the main floor beam and column are not welded; arc ignition is not used Board welding.

4. The problem of deformation analysis of components: the components are deformed during transportation, and there are dead bends or slow bends, resulting in the inability to install the steel structure in time between the components. .